How to cut a thread with a club

Pipe die for cutting threads on pipes | My tools

A pipe clamp is a tool that is used to cut threads on steel pipes. Steel pipes have long since faded into the background (but have not disappeared completely), and today plastic is often used when installing plumbing for heating systems.

Working with plastic is much simpler and easier, but steel pipelines are still used in heating and plumbing systems. It is not uncommon to find yourself needing to cut a thread on a steel pipeline to connect it to another part of the pipe or fitting.

For such purposes, a thread-cutting tool is used - a pipe die or die.

Many people don’t even know about the existence of thread-cutting dieheads, so after reading the name “thread-cutting diehead,” the question immediately arises, what is it? A pipe clamp is a device used for cutting threads on metal pipes. This device resembles a die (die), which is used to cut threads on cylindrical parts.

The design of the die is simple and is a cylindrical part with a recess for removing metal shavings from the device when cutting threads. The tool is also equipped with a special handle and a device for installing nozzles of different diameters. The basis of such a device are cutters or combs made of durable types of alloy steel. Not only the efficiency of the device, but also its service life depends on the quality of the steel used to make the die.

Many people do not understand how a die differs from a die. The difference is that the die has a die - cutters. The presence of a holder and handle ensures effective operation of the tool. For the manufacture of the component elements of the die, conventional types of steel are used, with the exception of cutters. The cost of the tool depends on the quality of the steel used to make cutters.

Jig for cutting threads on a pipe

This is useful! Reviews show that purchasing a die that costs less than 4,000 rubles is not an effective waste of money. For the manufacture of cheap pipe clamps, low-quality steel is used, as a result of which it is impossible for the device to cut threads even on one pipe.

Types of clamps for cutting threads on pipes

Pipe clamps continue to be popular, so manufacturers produce different types of products:

• Simple handicrafts
• Ratchet attachments
• Electrical plugs

How do the products differ, and what is the best option to choose for cutting threads on a pipe?

1. Simple dies are a regular die fixed in a holder (base). This die can be used either together with the handle or separately. The device can be rotated using an ordinary handle or a gas key. It is rational to use a simple pipe clamp only when it is necessary to cut a thread in a single copy. Manual clamp with two handles and a regulator.
2. Ratchet tool. For those who want to have an indispensable thread-cutting tool in their arsenal, it is recommended to purchase a device with a ratchet. Typically, such a wrench is sold in a set that contains dies or attachments of various diameters: ½, ¾, 1, 2 inches, etc. The advantage of a ratchet is that it simplifies the process of using the tool. If you need to cut threads on a pipe with a ratchet socket, then this can be done with one hand, making simple reciprocating movements Ratchet socket: an easy-to-use tool
3. Electric clamp - this type of tool is effective in cases where you need to cut threads on pipes in large quantities. The main disadvantage of this type of tool is its exorbitant cost, amounting to about 25 thousand rubles. The design of the electric clamp is based on an electric motor capable of developing high torque and low speed. The electrical device resembles a grinder in appearance, only instead of a circle, a die for cutting threads of the corresponding pipe diameter is installed in the spindle. Electric die for cutting threads

If you need to cut threads on a pipe in a small volume, then you can buy an electric plug, but it will not be a rational waste of money.

The main advantage of a hand ratchet and a power tool is the ability to cut threaded connections on pipes fixed near a wall or laid in the ground.

To cut threads on steel heating or water supply pipes, you do not need to dismantle them from the system. To do this, you need to pick up a tool and begin to quickly obtain a spiral-shaped connection.

How to choose a pipe clamp for threading a pipe

The task of the tool is to make a threaded connection on steel pipes. This result can only be achieved by using high quality dies.

Even if there is a need for thread cutting in a single quantity, then buying a cheap clamp (set with a ratchet) is not the best option. In this case, it is better to buy a pipe clamp without a ratchet, which will be of high quality than the dies in the set.

Many people step on such a rake when the opportunity arises to purchase a whole set of pipe threading dies instead of one die.

When purchasing pipe cutting dies, you need to pay attention to a number of the following parameters:

1. Price. Sets of cheap screws in a set are like cheese in a mousetrap. The probability that you will not be able to cut a thread with such a tool even on one copy is 99.9%
2. Possibility of changing cutters. Most manufacturers leave the opportunity to change the cutters while continuing to use the tool. Sooner or later, cutters will become dull and fail (even from high-quality steel), so the ability to replace them is a great advantage
3. Material for making cutters. If you buy a set, it must come with instructions, as well as the technical parameters of the tool. Cutters must be made of high-quality durable and alloy steel, which affect the ability to cut threads in large quantities
4. The set contains dies for threading pipes of different diameters. If you often work with pipes with a diameter of more than 1 inch, then you need to look for the appropriate set
5. Manufacturer. To ensure the quality of the tool, you need to buy devices only from trusted manufacturers. The most popular manufacturers of pipe clamps are: YATO, Zubr, SIBRTECH, Truper and others

How to properly cut threads on a pipe with a pipe clamp

Before using the tool, you need to understand some nuances. Externally, the tool does not cause any difficulties - install a die of the appropriate diameter, and cut your own thread. However, not all so simple! Before threading, you need to prepare for this event. The procedure in the form of instructions for cutting a threaded connection is as follows:

1. Rolling the pipe. A mandatory procedure, as this will help simplify the process of cutting a spiral joint. Rolling is a reduction in the outer diameter of the pipe by several millimeters. This is done by using a file, turbine, anvil and hammer, as well as a gas wrench. Craftsmen use a grinder with a grinding wheel for rolling
2. Treat the rolled section of the pipe with any type of lubricant - Litol or Solidol. The same materials can be used to treat cutters, which will help extend their service life by reducing cutting resistance
3. If threading is performed on a pipe that is located next to a wall or in the ground, you need to secure it with a gas wrench to avoid damaging the integrity of the fastening of the second end of the pipe. If the pipe is not secured, it must be clamped in a vice, and only then begin processing
4. Cutting is performed with slow reciprocating movements, since high speed will lead to tool failure
5. Having put a die on the pipe, it is necessary to install it strictly perpendicular to the end part of the material, that is, align the position of the die relative to the pipe
6. Using slow movements, you need to cut the first turn, which is the main one. When slicing, you need to make one revolution forward and then go back 0.5 revolutions. Metal shavings will be removed during the return process.
7. As soon as the first turn is cut, further use of the tool is facilitated and consists only of performing reciprocating movements

After this, the die is unscrewed and the quality and integrity of the resulting thread is checked. You can screw the coupling onto it, checking the quality of screwing. How many turns of pipe are needed for a reliable connection? Every master asks this question when using a similar tool. The number of turns is the same as on the cutter or on the coupling.

It is important to know! During the cutting process, you should not rush, otherwise all your efforts may lead to dulling of the cutters on the tool. Do not use a die on which the cutters are damaged or ground off, as this may lead to damage to the integrity of the pipe.

If you need to cut a thread on a pipe that is located in the wall, when access is only from the end part, then you will need to use a special extension adapter, as shown in the photo below.

Cutting threads on a pipe in the wall using a die with an adapter

Many may think, why buy a die if you can turn to a turner who will cut threads of any size, diameter and shape. The tool is mainly designed for exceptional cases where threads need to be cut on site. This device is really very convenient to use, it always helps to solve problems with a steel pipeline when the need arises to make a threaded connection.

If you prefer welding instead of a threaded connection, then you should understand one important nuance - when welding, a section is formed inside the pipe that will cause the accumulation of blockages. If the weld is applied poorly, a leak may occur over time, so the only correct solution is to buy a pipe clamp and cut the threaded turns in the required quantity.

Source: https://moiinstrumentu.ru/trubnyj-klupp-instrument-dlja-narezki-rezby.html

How to use a pipe clamp when cutting threads

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The phrase “pipe clamp” at first glance seems rather strange and misleading regarding its purpose. However, upon closer examination, everything will immediately become simpler, and there will be no more problems with perception. This article will discuss what a die for cutting pipe threads is, its features and application.

Purpose of the clamp

The installation of most pipelines requires threading, which allows you to connect different parts of the pipe. The thread provides a reliable and high-quality connection, so this type of connection does not lose its relevance over the years.

However, this rule does not apply to all situations. For example, polyethylene pipes are connected with special compression fittings, while polypropylene pipes are completely welded. Such connection methods have long proven themselves to be the best.

But, despite the simplicity and convenience, even such good methods of connecting pipes have their drawbacks, and quite serious ones:

1. Fear of high temperatures . The maximum temperature at which polypropylene and metal-plastic pipes can operate is 95 degrees Celsius. Of course, on paper this standard exists and can even be observed, but there are often cases when hotter liquid is run through the pipes - for example, when heating houses in very cold winters. As a result of such an impact, the pipe is destroyed, with all the ensuing consequences. What can we say about polyethylene pipes, which begin to deform as soon as the temperature reaches 40 degrees.
2. Low mechanical strength . When laying plastic pipes, you need to take into account their ability to withstand physical stress. For example, for installing a pipeline under a road or in rooms with high traffic, plastic products are not suitable at all - they are very easy to damage even by accidental impact.

As a result, we can come to the conclusion that in certain situations only metal pipes can be used, and they must be protected from corrosion.

Sealed connection of metal pipes is possible only using two methods:

• Welding;
• Threaded connection.

Welding is a good option, but not always suitable. One reason is that welding damages the zinc layer of the pipe, causing it to immediately become susceptible to corrosion. As a result, only the thread remains, which is devoid of this drawback.

Threading methods

There are several ways to cut pipe threads, including:

• Cutting on a lathe;
• Die cutting;
• Cutting with a pipe clamp.

Everything is clear with the machine - the pipe is inserted into the spindle, fixed, and with the help of a cutting tool, everything unnecessary is removed. Next, the cutter is changed, the pitch and depth of the pipe thread is selected - and this is where the work is successfully completed, after which the pipe can be used in any pipeline.

However, in theory, all this looks good, but in practice, a lathe is a tool that is not available everywhere, and you also need to be able to work with it. As a result, all that remains is a hand-held tool for cutting threads on pipes - a die or pipe clamp.

It is also worth mentioning that to cut the pipe you will also need a regular tool. Any device will do - a hand turbine, a pipe cutter or a hacksaw.

Features of the pipe clamp

Source: https://trubaspec.com/soedinenie-trub/kak-ispolzovat-klupp-trubnyy-pri-narezke-rezby.html

Features of thread cutting with a clamp

Threaded connections have been weakening in recent years. This is due to the advent of plastic pipes that are connected by soldering. However, a certain part of the pipelines is assembled using old technologies. To make a high-quality connection of metal pipes, you can cut the thread with a clamp.

Basic cutting methods

To make carvings on metal pipes, three methods are used, which involve the use of different tools:

1. Using a lathe. It is possible to process products of different diameters.
2. Die (second name - lerka).
3. Klupp - a hand or electric tool.

Taps are used to process the inside of products.

What is a klupp?

Pipe clamps can be compared to dies. They are a monolithic tooling that allows you to cut precise grooves on metal of the desired shape. However, the solidity of the structure creates serious stress when processing large-diameter pipeline elements. You can relieve stress by making the die body less durable. But this will reduce the hardness of the incisors, causing them to quickly become dull. To extend the service life of the blade before sharpening, the equipment is equipped with a spring mechanism.

The klupp is not much different from the die familiar to plumbers. It consists of a cylindrical body made of metal with holes for removing chips. There are separate clamps around the perimeter of the metal ring to securely hold the equipment on the pipe. The incisors arranged in a certain order are fixed on the inside.

Advantages of a die over a simple die

When comparing a die with a die, a person without experience will not find any serious differences. However, the second option of equipment has certain advantages:

1. The equipment has fewer non-functional parts, the price is reduced.
2. Comes with a cheap holder and durable teeth.
3. The cutters are removable. This makes it possible to change working parts when each of them fails without purchasing the entire tool.
4. Allows you to process large workpieces using less effort.

It is impossible to say objectively whether lerki klupps are cheaper or not. The second option can be found in stores for hundreds of dollars. The main advantage of these tools is ease of use and the use of less effort. Thanks to this, the quality of work performed improves and efficiency increases.

Varieties

Before purchasing a tool for creating threaded connections, you need to consider the different models that construction stores present to customers. There are three types of equipment, which differ in design and control.

With ratchet and one handle

The ratchet tool is similar to a wrench with interchangeable heads, which is used when repairing cars. The mechanism allows you to cut threads faster, spending less effort and time. However, ratchets have some disadvantages:

1. The ingress of dirt, dust, debris, and liquids into the mechanism impairs its performance. Over time it breaks down. It is necessary to follow the rules for storing and caring for the ratchet so that it lasts longer.
2. Low quality of materials used in the manufacture of most ratchet models.
3. Strong types of alloys can damage the moving mechanism. The device will have to be replaced.

A cheaper, more reliable analogue can be a gas key.

With adjustable head

Plumbers often carry with them a set of replacement heads, a holder, and additional accessories. The assembly weighs quite a bit, which makes it difficult to carry. Therefore, models with adjustable heads were developed. The mechanism allows you to change the diameter of the working part. This will expand the functionality of the equipment, allowing you to carry fewer parts for work.

Electrically driven

Professional models are equipped with an electric drive. Electrical equipment has a number of strengths and weaknesses. Advantages:

1. Ability to work with pipeline elements of different diameters.
2. Minimum effort is required during operation.
3. Increased cutting speed.

Flaws:

1. Weighs more than a hand tool and takes up a lot of space.
2. Requires a network connection.

Pipe clamp selection criteria

There are many different models of thread cutting dies. They differ in different parameters, design, and sizes. When choosing, you need to consider the following features:

1. Do not buy expensive models for home workshops.
2. The cheapest tools will quickly fail. They are suitable for one-time work.
3. Pay attention to the size and shape of removable incisors. They do not always fit equipment from other manufacturers.
4. It is advisable to choose sets of working heads with different diameters.
5. When choosing the material for the working part, give preference to alloy steel.

When calculating the power of electric models, you need to take into account the type of metal or alloy being processed.

How to cut threads on a pipe?

Using a hand tool involves following a certain sequence of actions. Pipe threading:

1. Clean work surfaces from dirt and decorative coatings. To do this, you can use a grinding machine or sandpaper.
2. Clamp the pipe with a vice to keep it stationary.
3. Grease your work surface with olive oil.
4. Unscrew the clamping bolts from the equipment.
5. Place the nozzle on the pipe. Slowly tighten the clamping bolts.
6. Secure the guides in place.
7. Install cutting parts.
8. Under light pressure, begin to twist the tool clockwise.

Cutting should be done with smooth movements, without jerking, so as not to spoil the thread. The equipment is removed after unscrewing the locking bolts.

There are several features that need to be studied before creating a threaded connection:

1. Pipes that are connected to the general piping system must be held with a gas wrench when creating the connection. This is necessary to prevent rotation of the product.
2. It is easier to cut a place greased with grease. Cutters become less dull after adding lubricant.
3. It is advisable to buy cutters from the same company as the holder. If firms differ, the working parts may not fit into the overall design.
4. Before starting work, check the sharpness of the cutters. Blunt edges can ruin the surface of the metal.
5. During work, you can change the position of the working parts, which allows you not to remove the structure until the work is completed.
6. Use a special cooling lubricant that will prevent the cutters from overheating.

After creating a connection on two pipeline elements, it is necessary to check how well the individual parts fit together. If a misalignment occurs, the pipes will not be able to connect.

Threaded connections are still used today. They can be made using dies, clamps, and lathes. The second option is considered more convenient when compared with other hand tools. It is important to choose high-quality working parts and check their sharpness before carrying out work. High-quality cutters are made from alloy steels.

Features of thread cutting with a clamp Link to main publication

Source: https://metalloy.ru/obrabotka/rezba/narezka-kluppom

How to cut threads correctly with a clamp

Even many experienced locksmiths have no idea what a clamp is, not to mention ordinary people. And this tool can help you out a lot when laying a home pipeline. We will talk about how he can do this in this article.

Pipe clamp 1-1 2-1/4-3/8-3/4 with ratchet and in a plastic container

General provisions

Let's start, perhaps, with the function performed by the clamp - thread cutting. You can rightly argue that the appearance of plastic pipes in everyday life has made the use of threaded connections unclaimed. Thus, polyethylene products are connected with special fittings for sewer pipes, while polypropylene products are simply welded.

Photos of plastic pipe connections using fittings

But things are not so simple when it comes to reliability. To better understand what we are talking about, let's take a look at the disadvantages of polyethylene and polypropylene:

Disadvantages of using plastic pipes

• Limitation of temperature conditions . For polypropylene the limit is 95 °C, and for polyethylene – 40 °C. In our harsh winters, there are situations when the boiler room has to supply water that exceeds technical standards, which will undoubtedly lead to an accident. So it is very risky to use this type of pipe for a heating system.
• Weak resistance to mechanical stress . This immediately eliminates the possibility of laying a plastic water pipeline under the roadway, since it will simply be crushed over time. And in places open to contact, you will also have to be careful, remembering the vulnerability of this material.

Polypropylene pipe cracked under load

But metal is not afraid of either high temperatures or excessive mechanical loads. But even with him in the matter of connection, not everything is so simple:

Types of steel pipe connections

Advice: it is recommended to use exclusively galvanized products to prevent destructive corrosion processes and rust from entering the pipeline.

Galvanized pipes for water supply system

Type of connection	Advantages	Flaws
Welding	Completely sealed	Deterioration of the zinc layer, as a result of which the pipeline becomes vulnerable to corrosion processes
Thread	Possibility of dismantling	The need to use additional seals to achieve optimal sealing

Using tow to eliminate a possible leak is not as dangerous as damaging the coating that protects against rust. In addition, not everyone knows how to use a welding machine with their own hands. Also important is the possibility of maintenance, which is very problematic with a solid line. So the threaded connection wins by a clear margin.

Manual pipe threading die with convenient holder

Of course, a lathe is ideal for cutting threads, but there are many problems associated with its use, the most important of which is its absence. So what remains is a die or die.

Definition

Professional set of clamps for pipe work

If the die has the form of a small cylinder made of high-quality tool steel with cutters and grooves for chips located inside, and holes for fixing holders on the outside, then a die is just cutters with a holder mechanism that simplifies the work.

Thus, despite the fact that the price of the die may be higher than the die, as a result you still save. Since in it expensive material is used only for the working consumable part, and the die consists entirely of it and is thrown away after it is used up.

Kinds

A set of pipe clamps and additional plumbing tools

Clupp name	Description
Simple manual	A ring with clamps for cutters and handles, which looks very similar to a regular die
Manual with ratchet	A ratchet has been added to the ring, allowing you to use the tool with one hand.
Electric	In this case, all the instructions boil down to fixing the pipe in the appropriate groove, the electric drive will do the rest for you

Advice: when choosing between a simple tool and one equipped with a ratchet, it is recommended to choose the first one, as it is much more reliable and practical.

Model KTT-1 4-1-1 2 2 with ratchet

Terms of use

Cutting threads on a pipe with a clamp at home

Now let's figure out how to use a pipe clamp.

To do this, it will be enough to follow a few rules:

• Before cutting a thread on a pipe with a clamp, it must be rolled by turning with a file, crimping with a gas wrench, or by any other available method.
• Lubricate the cutting area with grease - this will improve the quality of the cut threads and extend the service life of the cutters themselves.
• When purchasing new cutters, check with the manufacturer of the holder. Otherwise, they simply may not fit tightly into the grooves.
• When working on the pipe end of an existing pipeline, hold it with a gas wrench so as not to tear it off.

Conclusion

Despite the fact that today plastic sewer pipes are very popular due to their low cost and ease of processing, metal ones remain more practical and reliable. The best connection for them is a threaded one, which in turn is most convenient to cut with a screw. The types and features of such a tool are described above.

Pipe cutting die equipped with an electric drive

This article will introduce you to additional materials. Use the most convenient tools for working with plumbing!

Source: http://ooo-asteko.ru/kak-pravilno-narezat-rezbu-kluppom/

Pipe clamp: what it is and what it is used for

Even many experienced locksmiths have no idea what a clamp is, not to mention ordinary people. And this tool can help you out a lot when laying a home pipeline. We will talk about how he can do this in this article.

Pipe clamp 1-1 2-1/4-3/8-3/4 with ratchet and in a plastic container

How to replace cutters on a die

In this article I’ll tell you how you can simply and quickly replace the cutters on a die yourself. In the process of cutting threads, and depending on their number, the cutters on the die break or become dull. This depends on the quality of the product, and on the cutters themselves, and on the manufacturer, although I have been using a Chinese clamp for more than ten years, I changed the cutters only once, at 25 in diameter.

articles:

How to replace cutters on a die yourself

In the photo you will see how I will disassemble and change the cutters on a Chinese die, but there is not much difference, approximately everything is done according to a template, regardless of the manufacturer.

We take the lever and unscrew the 4 screws with a screwdriver or hexagon, depending on the model and manufacturer.

Remove the cover, there are 4 cutters under it.

At the same time, each cutter must be marked, that is, a count number must be written on it, from one to four, and for what diameter it is used (1/2, etc.).

You take out the broken cutter and put a good one in its place.

If you pulled out all the cutters at once and don’t know in what order to put them, this is also not a problem, but please note that the cutters on the die are placed counterclockwise.

Next, do everything in reverse order, install the cutters, cover with a lid, and tighten the screws. The entire replacement will take no more than 5 - 10 minutes, also in the video clip, at the end of the article, everything is well shown and explained.

Which die to choose and buy?

There are a lot of brands of clamps, there are expensive, cheap, manual, and powered by electricity, I will not list and show them all, you can perfectly find characteristics and photos on the Internet, and therefore in this section I will write my opinion on which clamp to choose and buy , but it’s up to you to decide.

When you go to the store, your eyes are wide open from the choice, but from my own experience I use Chinese for rough threads, and a ratchet for finishing passes, read in detail and see the article “How to cut threads on a pipe.” These tools serve for more than 10 years. In my work, I cut one or two threads a month, only when replacing radiators I cut more. I am quite happy with this die, and I am not going to buy another tool.

If you need to cut a lot of threads, and cut constantly, then you simply need to buy a higher quality and better die, there’s no question. Choose by features and quality.

So, before buying, think about what you need to buy and for what needs.

replacing cutters and threading with a Chinese clamp

Source: https://roma100471.ru/remont-santehniki/kak-zamenit-reztsyi-na-kluppe.html

How does a pipe clamp work - types, scope, manufacturers, prices

Although steel pipes have lost their leading position in the supply of cold and hot water and heating, they are still widely used to transport the same water and gas inside and outside residential buildings and apartments. The main method of installing pipelines by welding is not always available and can be implemented; it is often necessary to use a threaded connection method, using a die or a modern pipe clamp for cutting threads.

Although a thread-cutting die is a professional tool, due to its affordable cost, it is often used at home for cutting standard threads on pipes made of various materials. The trading network offers a wide range of thread-cutting clamps for pipes; before purchasing a tool, pay attention to the quality of workmanship, ease of use, and the manufacturer’s brand.

Rice. 1 Examples of working with clamps

What is a pipe clamp

Klupp is a thread-cutting tool, which is a cylindrical head of complex shape, inside which removable comb cutters are placed for cutting threads.

The design of the die can be roughly divided into two parts: the first contains a head with a removable plate and four thread-cutting dies, the second is a cylinder, usually with four outer edges or a hexagonal (octagonal) surface, which is the first to be put on the pipe.

Also, the kit of any clamp includes a device for its rotation (ratchet) in the form of a head with a handle, which is placed on the cylindrical part of the tool with edges. The ratchet allows you to screw the clamp onto the pipe without rotating 360 degrees around its axis, which is very convenient when the pipeline is located near stationary objects.

A die for cutting threads on pipes is usually equipped with several dies of different diameters, their standard sizes are 1/2 (15 mm), 3/4 (20 mm), 1 (25 mm), 1 1/4 (32 mm), 1 1/ 2 (40 mm), 2 inches (50 mm), of which the first four are the most popular among consumers.

Rice. 2 What is a clamp - the main components of the REMS model with a ratcheting mechanism

Scope of application in the household

Although a pipe cutter is classified as a professional tool, its use in everyday life can be useful for home craftsmen engaged in various kinds of crafts. Considering that there are two main types of connecting steel pipelines - welding and threading, the latter has a significant advantage, since it is collapsible. In a country household, a thread-cutting die can be useful in the following situations:

• For cutting threads on pipes that form the frame of prefabricated structures - greenhouses, greenhouses, gazebos.
• When installing an internal plumbing system for supplying cold and hot water from galvanized steel, stainless steel, copper pipelines.
• For arranging a heating system using steel, copper, stainless pipes when using them as a pipeline transporting coolant for supply to radiator batteries.
• When laying a gas pipeline inside the house, a threaded connection will be needed to connect the external input to the house, the gas stove to the line.
• For cutting pipe threads on various parts of homemade machines, technical devices, in some cases on polymers (thick-walled polypropylene and low-density polyethylene).
• If there are caisson wells for cutting threads on metal pipes inside the caisson or draining water for irrigation to the surface.
• Some craftsmen drill wells on their own sites; to do this, they use metal rods made of pipes that are connected to each other with threaded connections. The best and, perhaps, the only tool for cutting threads on this type of pipe elements is a manual or electric die.

Rice. 3 Face cutting through an extension and using a gas wrench

Features and comparison of die with die

Before the advent of die clamps and nowadays, threads are cut with dies, which are a hand-held thread-cutting tool in the shape of a tablet with internal cutters, on the outer surface of which there are grooves or recesses for fixation in the die holder.

The die holder itself is structurally made in the form of a cylindrical coupling, partially closed along the entire perimeter by a protrusion on one side, on which the die rests.

The die holder contains threaded holes for screwing in the handle and bolts that hold the die itself.

The die has the following distinctive features compared to the die:

1. For cutting threads, the clamp has an elongated cylindrical coupling, which is first placed on the pipe. This allows you to keep the cutters in a strictly perpendicular position relative to the center line, simplifies the work and improves the quality of the thread cut. When using a die, it is quite difficult to position it perpendicular to the central axis of the part, so before starting work, remove the outer chamfer at the pipe end.

2. The main material for the manufacture of dies is tool alloy steel of high hardness and wear resistance 9ХС, the marking of which is often indicated on the body of the part. Taps, reamers, cutters, stamps, stamps and even files are also made from 9ХС. As for thread-cutting dies made in China, nothing can be said about their chemical composition and, accordingly, there is no confidence in the high quality of the products.

Rice. 4 Types of ratchet clamps

3. The main difference between a die and a die is the different types of cutting. In the first case, the tool cuts a conical BSPT pipe thread, measured in inches, and most dies are designed for cutting a metric thread profile. It follows from this that the die is used only for threaded connections of pipes and fittings, and the die is used for cutting turns on any type of metal parts (such as bolts) except pipe ones.

It should be noted that there are exceptions and sometimes dies for cutting pipe threads are available for sale.

4. Each ratchet set has the possibility of reverse - rotating the attachment in the opposite direction; for this purpose, there is a locking pin in the body, which changes the direction of movement.

Ratchets for dies are also available on sale, but they are rarely included in the tool kits sold.

5. A significant advantage of clamps is the ability to use various types of replaceable cutters; in expensive imported models, the following types of threaded turns can be cut:

• External right and left thread: Pipe conical standard length R (American inch BSPT, NPT), since the thread is self-sealing, its purpose is to connect pipe sections with fittings and with each other. Cylindrical pipe thread of unlimited length

Source: https://montagtrub.ru/kak-rabotaet-klupp-trubnyj-vidy-oblast-primeneniya-proizvoditeli-czeny/

Manual die cutter: thread-cutting tool for amateurs and professionals

A manual die for thread cutting is a mechanism that allows you to create external threads on pipes, bolts, studs, bends, and barrels. The device is also used to regenerate ready-made but slightly worn cuttings. The tool consists of a holder and cutters.

The latter are made of high-strength metal, which guarantees the durability of the entire device and the creation of high-quality threads. There are two types of manual thread-cutting die: the first type is capable of cutting threads with a diameter of 0.5″ to 1 1/4″, and the second – 1 1/2″ and 2″.

Using a hand clamp you can cut or renew threads on workpieces of small diameter

General information about the tool

Thread cutting is carried out with all known tools - taps, dies, dies and dies.

Purlins are used to ensure screw threading on bolts. They can be thought of as a hardened steel nut, the cutting edges of which form special slots.

The hole is a set of thread-cutting sockets assembled in one plate. The holes in the trench can only cut one thread size.

The design of the die resembles a die and a die. Only the cost of this device is much less than one run. The device is used if it is necessary to change a pipe or a section of it, attach additional connections, replace system connections, or redirect pipes.

Modern tools have various modifications that make work easier. Thus, the models of clamps produced today are equipped with a single handle. A regular handle, consisting of two rods, is not always convenient to use. In household use, a manual type clamp with a ratchet is common. Its design allows you to continue working after a turn has been made without removing the handle from the holder.

Modern options for these tools also include additional dies for working in hard-to-reach places, improved cutter geometry, which guarantees good chip flow and easy entry into the material. Precise thread centering is ensured by the extended guide.

Modern tools are equipped with high-strength cutters that make it easy to process metal

Hand tools are not inferior to electric ones in terms of reliability and accuracy, while having less weight and size. The mechanism is mainly used to create threads on water, heating and gas pipes.

Helpful advice! To prevent wear of the cutters, it is recommended to use a cooling lubricant.

Types and designs of hand clamps

Each type of tool has its own characteristics and differences in design.

1. Oblique clamps

Cutting mechanical threads on rods and bolts is carried out using an oblique die. The design of this type of product is the simplest.

The oblique die consists of a frame with two handles and a hole. It houses two prismatic sliding purlins. A stop screw coordinates the placement of the purlins. The block and dies are firmly installed to ensure alignment of the threads on the runs. Precise installation of the purlins and crackers is guaranteed by triangular protrusions in the frame and corresponding recesses in the dies and crackers.

Breakage of the purlins is prevented due to the transfer of pressure from the screw to them by means of a cracker. A certain thread diameter must correspond to a separate set of dies. When installing the runs in the die, follow the numbers on the frame and dies - they must match. Incorrectly installed drives make the thread cutting process impossible.

Helpful advice! When cutting threads on a rod, the outer diameter of the turns should be 0.3-0.4 mm larger than the diameter of the rod. In this case, the cutting is of the highest quality.

2. Klupp Mayevsky

Mayevsky's clamp is designed for cutting coils on pipes with a diameter of up to 2".

Mayevsky's clamp is made of cast iron, which affects the weight of the tool

The mechanism is based on a frame with a groove in which adjustable girders are placed, which are secured using a thrust cover. The screws coordinate the placement of the dies in the windows. A guide flange is installed on the die frame. It also houses the guide bushings. Sets of dies are provided for each pipe diameter. The tool is rotated using handles.

The advantages of devices of this type are simplicity of design and low weight. Using a lightweight clamp is especially convenient when applying threads on small diameter pipes.

Helpful advice! To achieve accurate installation of the runs, corresponding numbers and marks are provided on them and on the die body.

3. Pipe clamp

The most common device for cutting threads on pipes is the so-called pipe clamp. The tool is designed to create cuts with a diameter from 1/2″ to 2″.

The body, made of cast iron, is equipped on one side with three rectangular grooves for guide dies, and on the other side with four slots for cutting runs. The pins are fixed in dies. They fit into the holes of the split ring for the guide runs. The pins in the cutting runs are placed in the recess of the adjusting ring.

The means of fastening the split rings to the frame are clamping rings. Turning the rings causes the dies to move in a radial direction. This movement corresponds to the thread diameter that needs to be obtained. The movement occurs thanks to grooves having a spiral shape. The screws are designed to tighten the split rings.

Rotation when cutting turns is done using handles.

This type of clamp provides two sets of runs. The first generates threads with a diameter of 1/2″ and 3/4″, and the second threads with a diameter of 1″, 1 1/4″, 1 1/2″ and 2″. There are notches on the ring that indicate the placement of the ring when cutting threads of the required diameter. The dies of the first set are cut on only one side, while the dies of the second set are cut on both sides. When installing them, you need to pay attention to the numbers that are printed on the die frame and on the runs themselves.

Helpful advice! When cutting threads with a diameter of 1″ or more, the split ring should be brought to the notch only during the final pass. It is not recommended to do this on the first scrolls.

Modern manual clamps are also electric; they can be used to perform large volumes of work.

4. Clutch with ratchet

A tool of this type is a modification of a device of the simplest design. A built-in ratchet or ratchet makes working with the clamp as easy as possible and increases the speed of cutting turns. Ratchets are available left and right. Designed to facilitate work in hard-to-reach places and optimal transfer of force. The device is very easy to use. It can be quickly removed from the thread by reverse rotation of the handle, turning the ratchet lever.

With careful use, the ratchet will last a long time. In case of breakdown, you can use a gas wrench instead.

How to choose the right clamp

The price range of these instruments in markets and stores is quite wide. The quality of a product directly depends on the cost. It is necessary to buy an expensive mechanism only if you are a professional, or if as a result of your work you need to obtain high-precision results.

When choosing a tool, you need to pay attention to the quality of the steel from which the cutters are made. It is preferable to choose alloyed one. In order for the tool to serve for a long time, it must be purchased with replaceable cutters.

Cutters from different manufacturers have different overall dimensions and do not always fit the same die.

The designation included in the model name indicates the diameter of the pipe that can be processed with its help.

Working in awkward or hard-to-reach places can be made easier by using a ratchet socket

The principle of thread cutting on different types of surfaces

Algorithm for cutting threads on bolts:

• clean the surface of the workpiece from contamination;
• clamp the part in a vice in a vertical position;
• remove scale from the bolt and chamfer the end of the threaded part;
• create a thread (solid runs create cutting in one pass, and sliding ones in 2-3 passes);
• cool the run with drying oil or sulforesol.

Algorithm for applying threaded turns on pipes:

• if the pipe is not new and has already been in use, it is necessary to clean it of dirt or paint;
• fix the pipe motionless;
• Apply drying oil or oil to the area to be treated;
• put the clamp on the pipe, unscrewing the locking screws;
• bring the guide dies close to the pipe, carefully hitting the handle of the clamping ring with a light hammer;
• secure the guide runs with a locking screw;
• install and secure the cutting dies in the same way, focusing on notching the required diameter of the pipe being cut;
• pressing the clamp forward, rotate it clockwise;
• It is recommended to cut the thread gradually, without jerking, without rushing, stopping after half a turn so as not to bend the pipe;
• To remove the clamp from the pipe, the dies must be separated.

After making the turns, you must try to connect the threads made with the counter part. You can continue working only if the elements interact correctly. When processing an old pipe, the cut threads must be inspected for the presence of through slots. If cutting is applied to a worn water pipe, you should hold it with a gas wrench so that the force applied when rotating the clamp is compensated.

A manual thread-cutting die, like every tool, requires constant care. A long service life is ensured only if the mechanism is used correctly. Therefore, after use, it must be disassembled, cleaned of dirt and lubricated. At the first signs of dullness of the incisors, they must be replaced with others of the same shape and size.

Source: http://TrubaMaster.ru/oborudovanie/klupp-ruchnoj.html

Jigs for cutting threads on pipes: description and principles of operation, types and selection rules

A clamp for cutting threads on pipes is very convenient, although it is less known than many other plumbing tools. If you need an accurate, reliable connection, you can choose from many models. When purchasing and subsequent work, it is important to know several rules. By following them, you can achieve results and keep the instrument in good condition.

Pipes can be joined by welding. It will turn out to be very durable and airtight. However, not everyone has special devices. It is not advisable to buy just for one use. In this case, you can connect using a thread made by a clamp.

Not every mechanic has heard of such a tool, much less an ordinary fan of doing everything with his own hands. But many people are familiar with a die or a die designed for the same purposes. Conventionally, the die is their cutting part.

Device

The die is made of high strength steel. For cutting it is necessary that it be stronger than the surface being processed. However, this does not require the entire tool to be made of good steel. Only the cutting part in direct contact with softer alloys is sufficient.

This is exactly what is implemented in the clamp. It only contains a cutter made of durable and more expensive steel, so the product is cheaper. There are other differences from the die:

• there is a guide part;
• incisors are longer.

That is, a die is a hand tool for accurately cutting threads. Most often used for processing pipes, but can also be used on suitable round workpieces.

The tool has the shape of a cylinder. There are cutting edges inside and holding elements on the outside:

• bolts;
• faceplates;
• clamping rings.

To operate, the pipe thread cutting club must be inserted into a special holder. Budget options do not have the latter in the set. Can be replaced with an adjustable wrench and similar tools. At the same time, the pipe is fixed: it is clamped in a vice or an assistant holds it, for example, with a gas wrench.

After insertion, it is necessary to center the cutter on the workpiece. Cutting is done by rotating the die using the handle of the holder. The first cutters make the carving, and the next ones finish it. In electric tools this process is automated.

To obtain neat, accurate carvings, it is important:

1. Use lubricant.
2. Do not twist constantly in one direction. After about half a turn has been made, you need to move it a little in the opposite direction and shake out (blow out) the chips. Further - in the same order. Otherwise, some turns may be knocked down.

Types of clumps

Clupps are quite simple, similar instruments, although they also have their own peculiarities. They differ:

• by thread pitch or direction;
• for ease of use, for example, in hard-to-reach places;
• by size and other parameters.

However, the main feature by which they can be divided is the principle of operation. Stand out:

• hand tool;
• electric.

The common qualities shared by both types are:

• the ability to make threads on a pipe even with a very large diameter;
• subject to the necessary skills - accuracy of work.

Manual

The holder for a hand clamp can be:

1. Made of two rods made of metal. During operation they are held and rotated. This option is more common than others.
2. Single handles. They are convenient to move with one hand. This allows for better use in difficult to reach areas. They are less common.
3. Sometimes you can find a holder in the form of a ratchet wrench.

In the latter case, the design facilitates the process of work and rotation. However, it is worth remembering the disadvantages of a ratchet:

1. There is a regularity in any mechanism: the more complex it is, the faster it fails.
2. Cheap Chinese samples are almost always on sale. The quality of the material is low.
3. Certain types of pipe alloys are stronger. Instead of cutting, the ratchet may break on its own.

Cheap models are often sold without a holder. It can be replaced, for example, by a gas wrench of the required size.

Depending on the type of coils, manual clamps are:

• single-thread - the thread is made with a single screw thread;
• multi-pass - two or more.

The quality of the threads is not inferior to electric models and is unpretentious in maintenance. These qualities are valued by non-professionals, as they allow them to do simple work around the house without much expense. They are often used not only to make new threads, but also to restore existing ones.

Electric

The electric version is considered professional. It can handle pipes of almost any size. The work process is greatly simplified. It only comes down to fixing the pipe and installing the clamp. Advantages over manual:

1. You don't need to spend much effort. The products have low power, which does not prevent them from performing even heavy work in difficult cases.
2. Time is saved as cutting occurs much faster.

There are also weaknesses:

1. An electric clamp is noticeably heavier than a manual one and takes up more space.
2. It is much more difficult to carry out work in difficult to access places. Also explained by the dimensions.
3. Electricity required.
4. Application may be weather dependent. For example, it is not recommended to use electrical appliances in the rain.

If we are talking about a handmade product, then maintaining it in order is not difficult:

1. It is necessary to periodically apply special oils and cutting fluids (coolants). They help achieve more accurate threads and avoid corrosion. The tool will not overheat and become deformed. All this will extend the service life several times.
2. If any spare part is worn out, for example, cutters, it must be replaced in time.
3. It is important to select the correct pipe and product sizes. Mismatch causes too much friction and heat, which can damage the tool.

To properly care for the electrical plug, you need to read the instructions. It must be attached and describes the operating features.

Some selection rules

There are many samples on the market, differing in various parameters. In order not to get confused and choose the appropriate option, it is advisable to remember a few rules:

1. There is a significant range in prices. For example, there are manual ones for several hundred rubles or several thousand. For clamps, the price, as a rule, corresponds to the quality: the more expensive they are, the better.
2. You can often find kits for cutting threads on pipes, which have several nozzles and a holder. Some are better suited for working in hard to reach areas. It's comfortable. If possible, it is better to take them. However, it is worth remembering that even some sets are not suitable for diameters that are too large or, conversely, small. Therefore, it is worth checking the pipe size.
3. You can take separate threading heads for the required diameter of the surface to be machined. Their design can be improved. There are both manual and electric ones.
4. It is important to pay attention to the material from which the incisors are made. It is better if it is alloy steel. Usually the rest of the product is made of cast iron or tool steel. The latter is stronger and can withstand heavy loads during intensive work.
5. It is desirable that the tool be comfortable and ergonomic, especially if it will be used frequently.
6. Some worthy manufacturers for hand clamps:
   • STAYER;
   • STURM;
   • ZUBR "Expert".
7. Good electrical brands:
   • SQ30 (cheaper);
   • Rothenberger;
   • GERAT.

The Klupp is a valuable tool for any beginner or professional. The main thing is to choose the right one and master a number of skills.

Source: https://tokar.guru/instrumenty/instrumenty-dlya-raboty-s-trubami/klupp-dlya-narezki-rezby-na-trubah-vidy-i-nabory.html

Klupp. Types and device. Thread cutting and features. Application

Clupp is a tool designed for cutting external threads. It is actively used in the construction and repair of water supply, gas pipelines and heating systems.

What is the difference between a die and a die?

In fact, these tools are used to perform the same task. However, they have structural differences. Thus, a die, also known as a die, is an all-metal washer with a central hole in which a comb of blades and chip channels are formed. In fact, the tool is entirely made of high-quality solid steel, the cost of which is quite high, which makes the die more expensive and makes it inaccessible to the private consumer.

The clamp device looks more complex in appearance, but the design solution used in it makes it possible to reduce the cost of the tool. It consists of a round metal frame made in the form of a tube. It is cast from cheap but durable metal. It holds 4 removable incisors.

In their manufacture, small quantities of hard tool steel are used, thanks to which, ultimately, despite the design complications, the price of the die is much lower than that of dies.

This allows you to buy it if you need to perform one-time work during home repairs.

The die uses a wide holder with a guide tube, so when using it, the likelihood of distortion of the thread being cut is minimized. Another distinctive feature is the structure of the blade comb. The cutters are made in such a way that the first ones make shallow carvings. They prepare the rough track. Higher blades already slide along it, cutting out a full-fledged thread that can be used.

Popular sizes

The clamp is produced in various sizes, but in everyday life when working with pipes that can be found, it is usually used:

• 1/4″.
• 1/2″.
• 3/4″.
• 1″.
• 1 1/2″.

The vast majority of pipelines that run directly through apartments and houses consist of pipes with a diameter of 1/2″ and 3/4″. For this reason, the most purchased and in demand are the clamps in this size.

Tool types

The clamp is a very popular tool that is used professionally, as well as for one-time pipe repairs. For this reason, manufacturers are trying to differentiate their range and have developed various ways to improve the basic design.

Manual clamp

Clumps of this type belong to a lower price category. Their peculiarity is that muscular force is used to ensure thread cutting. Such a tool is a tube holder into which 4 incisors are fixed. They are pressed against a washer-shaped plate and held in place with screws. As they wear out, the old cutters can be removed and new ones put in their place.

The cheapest range of hand tools is just a holder with cutters. Such clamps are most often purchased when it is necessary to perform one-time work. The fact is that they do not have a handle that you can twist. It is successfully replaced by a pipe wrench. Naturally, in this case, the likelihood of cutting a thread skewed will increase, but if you need to make only a few connections and without haste, then with due care such defects can be completely avoided.

Kits with a ratchet are more expensive. They are much more convenient to work with, so they are chosen when thread cutting is carried out professionally and it is necessary to prepare dozens of connections per work shift. The ratchet allows you not to rearrange the handle, as is the case with a wrench, but simply use a reciprocating movement to tighten the screw.

Also on sale you can find an adjustable die, the distance between the cutters of which can be adjusted. This is a universal tool. They can make threads on pipes of various diameters. The vast majority of this range is represented by products from China, so the accuracy of adjustment, as well as the build quality, is sometimes at a low level. The assortment of specialized stores also includes much higher quality German instruments.

Electric

Equipment of this type looks like the outline of an angle grinder, but instead of a cutting disc, a clamp is attached to it. The advantage of using such a tool is that there is no need to rotate it manually. The electrical device is equipped with a clamping clamp. Thanks to this, it is fixed to the pipe, eliminating the need for further holding. After this, the button is pressed and the electric motor rotates the holder with the cutters on the pipe.

Although this is a very weak equipment in terms of energy consumption, having a power of only a few hundred watts, it produces sufficient force. It is quite sufficient when working with pipes made of any steel. This is achieved through the use of gearboxes with optimal transmission capacity. The motor rotates quickly, while slow rotation is transmitted to the working part of the tool.

Although it is indeed convenient to operate an electrical device, its capabilities are very limited. The fact is that this is quite large equipment. It will not be possible to cut threads in a hard-to-reach place, for example, in a narrow niche that houses a whole system of pipes that prevents it from unfolding normally. For this reason, professionals, in addition to using power tools, also have hand clamps.

Features of thread cutting with a clamp

When working with this tool, the technology of use is almost the same as when using a die. First you need to chamfer the end of the pipe. Although the die has a cone-shaped arrangement of blades, this will extend the life of the tool. Next, lubricant is applied to the surface of the pipe itself, as well as to the comb of the cutters.

It is best to use specialized grease made for carving. Also, the use of lard will be no less effective. In the absence of such types of lubricants, you can use machine oil or diesel fuel, but in this case the quality of the thread will suffer.

The presence of abundant lubrication will prevent thread rupture when cutting with force.

You also need to take care of holding the pipe itself, especially if it is welded to the riser. It is quite possible to break a weld or twist a riser, damaging the communications of the entire house.

The tool is fixed on the pipe in such a way that the side with the cutters remains on the outside. After this, the clamp is screwed on. The first turns need to be done very slowly and constantly watch for the appearance of distortion. If they are made smoothly, then further carving will be perfect. Rotation is carried out until effort appears.

Their presence indicates that the cutters are clogged with chips. To remove it, you need to unscrew the tool in the opposite direction by half or a full turn, and then rotate it forward again. If you alternate rotation in different directions to remove chips, overheating of the blades and their rapid wear are prevented.

In addition, the carving will be of higher quality, and most importantly, the likelihood of it being licked is eliminated.

When cutting threads, it is necessary to achieve the creation of 4 full turns. This connection method is reliable. Although on sale you can find taps, mud filters and other equipment for pipes with two or three turns of thread, this does not mean that such equipment can last a long time or will not leak.

After cutting the thread, it will be problematic to screw a squeegee or tap onto it, since it will turn out to be cone-shaped, which is caused by the peculiarity of the clamp comb. This problem can be solved by lubricating the thread again and running the tool through it again. If additional metal removal does not help, the die must be disassembled.

The cutters fixed in it are removed and turned in the opposite direction so that a narrow comb with high blades is screwed forward onto the pipe. The tool will go through the first two turns with ease, and in subsequent turns it will remove chips. Many people do not know about this trick, so they try to solve the problem by screwing the cutters on more than 4 turns so that the cone starts further. This is also a completely acceptable solution.

But this cannot always be done, especially if you need to cut a thread on a short section of pipe coming out of the wall, when there is no room to move further.

Features of working with “disposable” dies

In the case when you need to cut threads on just one pipe, many people prefer to do it themselves by purchasing a cheap die. In the end, it will be cheaper than paying to call a plumber.

The disadvantage of using such a tool is its almost complete unsuitability. If high-quality clamps gradually wear out during operation and after several hundred uses their blades need to be replaced, then a cheap assortment of cutters may burst under force.

There are cases when the tool breaks after just a few turns, without finishing the first thread.

To minimize such risks, it is necessary to remove the paint on the pipe, if any, and remove the chamfer before starting work. This can be done using a grinder with an emery wheel or an ordinary file.

You will also need to use more lubricant and alternate between rotating the tool back and forth more often to clear away chips more often. If you follow these rules, it is likely that you can make a carving even with the cheapest die.

Of course, even if you don’t break it, it won’t cut for long because it will wear off.

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Source: https://tehpribory.ru/glavnaia/instrumenty/klupp.html