What is welding camping - Metals and their processing

Kempey welding machines: advantages and disadvantages of equipment

A large number of people have a persistent stereotype in their heads that foreign-made equipment is characterized by a much higher level of reliability and quality than domestic equipment.

Kempi welding devices are a prime example of this, because this company produces the most modern of all existing types of such equipment.

This Finnish technology has become widespread due to its excellent performance properties and high quality.

It is noteworthy that Kempi welding machines are often used by experienced professionals, because these devices meet all the necessary requirements and have many additional features that simplify the welding process.

This technique is used both in everyday life and in industry. The units are used for the construction of metal structures, fastening pipelines, welding machine tools, machines, water vessels, as well as for the repair and construction of a wide variety of objects.

This wide application is due to the wide range of Kempey equipment models. Welding is very convenient and high quality.

In addition, the manufacturer is constantly improving its products, making them more convenient and functional.

Advantages and disadvantages of Kemppi welding machines

The advantages of this technique include the following:

the devices are very technologically advanced and modern;
new models have both necessary and additional functions that allow you to weld workpieces with the highest quality, quickly and conveniently;
connection to power supplies is carried out in accordance with standard parameters;
the equipment configuration allows for extremely precise adjustment of the welding current;
the manufacturer offers a wide selection of products that are suitable for almost any type of welding;
Kemppi welding devices are often characterized by ease of use and compact dimensions;
in Russia there are official service centers of the manufacturer, as well as points where they sell devices and additional accessories for them.

As for the shortcomings, it is worth noting:

high cost;
excessive energy consumption (only for some models);
At this price, many parameters are not very different from devices that cost less.

Types of Kempi devices

The main varieties of products from this manufacturer include the following:

Orbital MIG welding . This processing technique uses a special wire. Often used for fastening steels. Devices of this class include a pair of blocks that are moved using a trolley.
Orbital TIG welding . For this procedure, tungsten electrodes (surfacing) are used. The devices are characterized by low cost and ease of use.
MAG/MIG welding involves the use of standard equipment and shielding gas. Compact equipment, which is often equipped with additional functions.
TIG welding . This treatment is carried out using argon-arc units. The company sells devices using direct and alternating current.
MMA welding involves the use of conventional inverters.

When selecting a unit for your needs, you should pay attention to a number of parameters. If you plan to work with thick parts, then the device must have a sufficient supply of electric current. Models with a value of 200 amperes are suitable here.

Important advice: despite the fact that the equipment from this Finnish manufacturer is considered very reliable, one must not forget about ensuring effective and high-quality ventilation, otherwise the device may simply overheat.

For some welders, the price of the equipment is almost the most important point.

However, there is no need to immediately focus your attention on the most expensive products, because they may be equipped with “extra” functions that can only be useful to experienced professionals.

Also, specialists will have useful and all kinds of additional accessories and original parts that can be used in the event of equipment breakdown, which will save both money and time.

Operation and setup

Beginners often do not know how to configure the device. For this purpose, you must first select the operating mode, guided by the type and size of the metal and electrodes. Having decided on the mode, you can begin adjusting the supply of wire additive.

When working, make sure that the equipment does not overheat. If you notice signs of this, then you need to unplug the device and wait a little.

Source: https://tokar.guru/svarka/dostoinstva-i-nedostatki-svarochnyh-apparatov-kempi.html

Camping welding

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The stereotype that foreign technology is of higher quality and more reliable than domestic technology is firmly entrenched in the minds of many people. The Kempey welding machine is a clear confirmation of this, since this company represents some of the most modern models that can be found on the market.

These are Finnish products that have gained wide popularity in our market due to their high quality indicators.

The Kempi welding inverter is most often found in the arsenal of professionals, since the new models meet all modern requirements and have additional functions that make welding work easier.

Kemppi MinarcTig Evo 200 welding machine

Equipment of this kind is used in almost all areas of industry and the private sphere.

They are used for connecting pipelines, erecting metal structures, welding machines, machine tools, and waterfowl, both during construction and during repairs. Such a wide scope of application is due to the large number of varieties of models and their types.

New developments are constantly being carried out, which are designed to make it easier to weld thin sheets of metal, difficult-to-weld alloys and those things that require precise conditions.

Advantages of the Kempi welding machine

The Kemppi welding machine is a modern high-tech product;
New models have all the necessary set of additional functions that will help improve the weldability of workpieces and stabilize the arc;
The equipment is connected to the network with standard parameters;
Current and voltage adjustment parameters are very fine and precise;
The manufacturer produces a wide range of products that can be suitable for almost any professional type of welding work;
Most Kemppi welding machines are compact, easy to use, and have a distinctive signature design;
On the territory of our country there are official representatives, service centers, as well as points of sale of the devices themselves and their accessories.

Flaws

The main disadvantage of the Kemppi welding inverter is its high cost, which makes it very difficult to purchase it in the private sector;
At such a high cost, the maximum current reserve and other parameters do not differ much from more budget options;
Some models are too energy-intensive that it becomes uneconomical to use them.

Types of Kempy devices

The company produces Kempi semi-automatic welding machines, as well as other types of welding equipment. She works in several directions, including in the field of automated technology. Among the main types of its products it is worth noting:

Orbital MIG welding, for which a special electrode wire is used, and gas is used as a protective medium. Most often it is used to join steels. Such devices consist of two blocks moved on a special trolley.

Kempey welding machine for MIG welding

Orbital TIG welding, for which non-fusible tungsten electrodes are used. The devices are easy to use and relatively low cost, compared to other varieties from this manufacturer.
MIG/MAG welding – standard machines for welding with shielding gas. Compact devices with a number of additional functions.
TIG welding, for which standard devices for argon-arc joining of workpieces are used. The company produces welding machines using alternating and direct current.
MMA welding, for which ordinary inverters are used, designed to work with single-piece coated electrodes.

Kemppi Master S 400/500A for MMA welding

Robotic automatic welding systems are one of the most complex areas that are actively developing and are widely used in industry.

Brands and technical characteristics

Different product brands have their own unique characteristics. Despite the fact that at first glance the models appear to be very similar, they still have some distinctive nuances. Here are the most common models:

Brand	Specifications
Minarc Tig Evo 200	Power consumption: 6 kVA No-load voltage: 95 V; Frequency: 50 Hz; Maximum current: 200 A; Minimum current: 5 A.
Minarc mig Evo 170	Power consumption: 5.3 kVA No-load voltage: 85 V; Frequency: 50 Hz; Maximum current: 170 A; Minimum current: 20 A.
Welding inverter Kemppi Minarc 150	Power consumption: 5.5 kVA No-load voltage: 90 V; Frequency: 50 Hz; Maximum current: 150 A; Minimum current: 5 A.
Minarc mig Evo 200	Power consumption: 6.3 kVA No-load voltage: 100 V; Frequency: 50 Hz; Maximum current: 200 A; Minimum current: 20 A.
Minarc Evo 150	Power consumption: 5 kVA No-load voltage: 85 V; Frequency: 50 Hz; Maximum current: 150 A; Minimum current: 10 A.

Choosing the right model

When people wonder how to choose a welding inverter, then those parameters that are basic for the welder himself should come to the fore. If you have to work with parts of large thickness, then Kemppi semi-automatic welding machines must have a high current reserve. Models with a maximum value of 200 A are suitable here.

"Important!

Despite the high reliability of the equipment, one should not forget about providing ventilation.”

For many welders, cost is also one of the most important factors. You should not focus immediately on the most expensive models, as they may contain functions required exclusively by professionals. For a professional, it will be useful to have an additional supply of functions, and the increase in price will be fully recouped over the entire period of work.

Having good equipment will also not be amiss for a specialist. Often suppliers provide cheap accessories, but here the kit includes branded items that will not need to be replaced immediately after purchase.

Setup and operation instructions

Beginners often do not know how to set up a Kempi semi-automatic welding machine. To do this, first of all, you need to select a welding mode, which is based on the type of metal used, the thickness of the workpieces and the electrodes used. Having designated the modes, they must be set on the appropriate scales of the device. You also need to adjust the feed speed of the welding wire, which depends on the metal welding mode. Welding with thin wire is faster, so the speed should be higher.

Allow the device to cool down during operation. The ratio of operating time and idling time is determined by the PV parameter. The higher it is, the more the device can work without turning off. In order for the equipment to cool down, it does not need to be unplugged from the outlet, since with built-in ventilation it will cool down faster than when it is turned off.

Modes

To properly use electric arc welding with coated electrodes, you should adhere to the following modes:

Setting modes
Workpiece thickness, mm	0,5	1-2	3	4-5	6-8	9-12	13-15	16
Diameter of consumables, mm	1	1,5-2	3	3-4	4	4-5	5	6-8
Current value, A	15	40	79	1430	160	175	210	270

Source: https://samsvar.ru/stati/kempingovaya-svarka.html

Explanations for beginners on how semi-automatic welding works

A semi-automatic welding machine can quickly and efficiently connect two parts. Due to the fact that this type of device can work with any metals of various thicknesses, automatic and semi-automatic welding is used in all industrial sectors.

Compared to manual arc welding, it has a much higher efficiency, with low material costs. Semi-automatic welding for beginners includes several aspects - theoretical and practical.

They are closely interrelated, and before starting welding work, a beginner must master the basic basics.

What is a semi-automatic machine and its types

To weld with an automatic welding machine, you need to understand what it is and how it works. A semi-automatic welding machine is a mechanical device in which a coil of wire is installed, acting as a consumable electrode, and a mechanism for automatically feeding it. The current strength and electrode feed speed are set by the welder on the machine himself, depending on the type of metal that is being fused and the speed of movement of the torch.

There are many different units for welding work. To organize them a little, there are several classifications. Let's consider the most basic one - the method of protecting the material during the process:

semi-automatic welding under a layer of flux (flux is a powdery composition that is located in the middle of the working wire. In its chemical properties, it resembles electrode coating);
welding in inert and active gases;

In addition, there are single-phase and three-phase units for semi-automatic welding. Single-phase models operate from a regular 220V outlet. In this case, if the network does not match the power of the unit, the arc will not be stable, which will lead to defects when creating a seam. A three-phase device cannot be connected everywhere, but at the same time it is distinguished by high quality of work under different loads.

Although the listed semi-automatic welding machines differ from each other, they all have the following equipment:

current source;
gearbox for moving the electrode;
burner;
welding cable with clamp;
control system;
gas cylinder;
gas supply hose.

Semi-automatic welding technique

Let's look at how to weld semi-automatically, since this type of work has several options - welding with shielding gases and welding without gas, using flux-cored wire.

Gas shielded welding technology

For semi-automatic welding, you can use several types of gases. The most commonly used gases are carbon dioxide or helium. This is due to their availability and low cost of use.

Gases are used to reduce oxidation of the metal from which the part being welded is made, in order to increase the strength of the weld. The main condition for operating a semi-automatic machine with carbon dioxide is preliminary preparation of the part.

This means thoroughly cleaning it to remove all dust, dirt, paint residue or rust. To do this, use sandpaper or an iron brush.

There are three types of welding technology:

continuous welding, when the torch or electrode is carried out from the beginning to the end of the seam;
spot welding, in which parts are connected not by a continuous path, but by welded spots;
Short circuit welding is carried out mainly for thin sheet metal and involves melting the metal by applying pulses from a short circuit that forms in the welding machine. Once closed, the molten material is pulled together into a droplet, which is used to join the two parts.

Most often, semi-automatic welding with carbon dioxide is performed in alternating current mode. Before starting work, you need to prepare everything for welding. The device is adjusted depending on the type of metal and its thickness. The gas consumption from the cylinders will depend on the welding mode. The wire diverges almost equally - on average 4 centimeters per second.

More precise settings can be found in the GOST tables, which indicate the modes and standards for each type of metal. When both the equipment and parts are ready, you can begin connecting the products using a semi-automatic machine. First of all, you need to turn on the gas supply and then excite the arc. To do this, you need to touch the part with the wire.

When you press “start/start” on the body of the device, the mechanical feeding of the electrode wire begins.

The quality of the seam depends on many nuances. For example, it is important to hold the wire and guide it straight, but not too close to the workpiece. So as not to block your view of the weld pool. During work, it is important that the required interval is maintained between the edges of the parts being welded.

The operating technology is such that when the product is up to a centimeter thick, the gap should be no more than 1 mm; when the product is more than a centimeter thick, the gap is 10% of this value.

Very often, parts in a lying state are welded on a special iron substrate, placing it from below very tightly to the base metal.

Aluminum welding technology

A semi-automatic machine can be used to weld various metals, and aluminum is no exception. But there are special rules, since this metal has some special features.

On its surface there is a thin layer of amalgam, whose melting point is much higher than that of aluminum (more than 2000 degrees, while the base metal melts at 650 degrees). In this case, argon is used as an inert gas.

Since aluminum quickly melts and begins to flow, a substrate is used to work on a semi-automatic welding machine.

The welding process itself occurs with consumable electrodes under the influence of direct current of reverse polarity - this is when a negative charge is attached to the part, and a positive charge to the torch. Such welding techniques contribute to high-quality melting of the workpiece and rapid destruction of the top layer. Although for such a connection you can use another trick - pre-clean the product to remove the oxide film. You can read more about the features of working with aluminum here.

The joining technique can be performed in different spatial positions using different types of seams.

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Wire welding

The peculiarities of welding are that work can be done both in a gas environment and without the use of carbon dioxide, helium or argon. One popular joining method is submerged arc welding. It is more often used in industrial conditions than in domestic ones.

This is due to the fact that flux itself is an expensive material. This is the powder that is found in the middle of the wire. During melting, under the influence of high temperature, it releases a gas cloud that protects the weld pool from oxidation.

That is, in this case, additional inert gas is not supplied from the cylinder.

The main advantage of flux-cored wire is that it can be used to weld with a welding machine outdoors or indoors in a draft. For example, when gas welding, you will not get a high-quality path if there is wind, since it violates the gas flow.

Semi-automatic welding without gas can be carried out under any conditions, both indoors and outdoors.

It is not recommended to weld too thin sheets or medium-carbon steel with a welding unit using self-shielding wire, as defects may appear (mainly hot cracks).

To increase the temperature of the welding arc to quickly and efficiently melt the flux, you need to use the same trick as with aluminum welding - apply reverse polarity.

Basic rules for welding work

To become a real professional, you need to know everything about semi-automatic welding, and safety is one of the important aspects. It is necessary to study and every time comply with all the norms and standards prescribed in GOST. Safety precautions must not be neglected when working with fire and gas cylinders. It is also important to protect yourself by wearing a uniform and a mask that will protect your eyes from UV burn.

Not only beginners, but also experienced craftsmen are recommended to initially try the seam on a rough part or on an inconspicuous area to make sure that the settings on the semi-automatic welding machine are correct. Before using the unit, you must read the instructions and follow them during operation. And yet, the device cannot work continuously. That is, you need to pause periodically; this is written in the instructions for them.

Automatic and semi-automatic welding requires a long training process, which includes theoretical and practical knowledge. Training to become a welder is a long and responsible job, although once you understand everything, you can understand that it is not difficult if you follow all the recommendations.

And in the end, I would like to answer one of the most frequently asked questions, what is the difference between automatic welding and semi-automatic welding:

automatic welding is a process in which the movement of the arc and the supply of the electrode are mechanized;
semi-automatic welding is a type of welding in which the wire is fed mechanically and the arc is moved manually.

More details on how to cook semi-automatically can be seen in the following video:

Source: https://svarkaed.ru/svarka/obuchenie-svarke/poyasneniya-dlya-nachinayushhih-kak-rabotaet-poluavtomaticheskaya-svarka.html

Semi-automatic welding technology for beginners: first experience

For welding metals, a laser beam, torch flame or plasma can be used, but one of the simplest and most compact options for devices for performing this type of work is a semi-automatic device.

To ensure that the metal seam is as smooth as possible and protected from oxidation, welding metals in this way is best done using shielding gas.

Semi-automatic welding for beginners is difficult only in the first minutes of mastering. To speed up the learning process as much as possible, you should study the basic rules for handling such a device in advance.

Semi-automatic welding machine: operating principle

In order not to “kill” the device when using a semi-automatic welding machine. To avoid injury, you should know about the safety rules and the operating principle of the device.

The semiautomatic welding machine consists of:

housing containing a powerful transformer;
hose for supplying current and gas to the burner;
cables for connecting to ground and the electrical network;
wire feed mechanism.

Also, for semi-automatic welding, you will need to purchase a reel with a special welding wire and a cylinder of carbon dioxide.

The operating principle of the semi-automatic device is as follows:

The welding current is supplied to the torch simultaneously with the shielding gas.
The torch uses a welding wire as an electrode, which is fed automatically using a special mechanism.
An electric arc is formed between the product being welded and the wire, which melts the metal in a protective gas environment, which allows you to obtain a high-quality weld without oxides.

The basic safety rules when working with semi-automatic welding machines are as follows:

the body of the welding machine must be grounded;
it is prohibited to use the device even with minor mechanical damage or any other malfunctions;
in case of significant interruptions in work, be sure to disconnect the device from the electrical network and turn off the supply of protective gas;
do not work near flammable and explosive substances;
Use a protective mask and gloves while working.

As soon as the basic principles of working with a semi-automatic machine are mastered, you can begin practical work.

Semi-automatic welding: first experience

To gain practical experience, it is recommended to first practice on unnecessary metal scraps before proceeding with complex work that requires highly qualified welders.

For practical work you need to prepare:

welding machine;
gloves;
protective mask;
gas cylinder.

The first thing you need to do is set up the welding machine. Correctly adjusted strength of the supplied current will allow you to make a welding seam perfectly smooth and without breaks.

This parameter directly depends on the thickness of the metal being welded, so before starting work, you must read the instructions for the electrical device. Which should indicate the amperage recommended by the manufacturer for a certain thickness of the parts being welded.

Selecting welding modes

You should also make the right choice of the welding wire feed speed, which is regulated by a special mechanism.

The optimal diameter of the wire for welding is 0.8 mm, but when working with very thin metal, you can install a 0.6 mm electrode so that at a reduced current the metal is melted without fading the arc.

If possible, it is better to purchase Italian wire for semi-automatic welding. Imported analogues are of higher quality, but the cost of such products will be several times higher.

Despite the higher cost, such an electrode is more suitable for beginners because it is easier to obtain the desired result, even with insufficient experience in handling an electric welding machine.

instructions: setup.

Cylinder with reducer

In order to protect the welding site from exposure to oxygen, shielding gas is supplied. The cheapest option for using shielding gas is to purchase a carbon dioxide cylinder with a reducer.

A reducer with a pressure gauge must be installed to monitor the pressure of the supplied gas. To carry out high-quality welding of metals in a shielding gas environment, it is enough to set the working pressure to about 0.2 atmospheres.

Protective mask

To protect your eyesight, semi-automatic cooking should only be done using a protective mask, for example, Chameleon. Modern products have a special adjustment in their design, which allows you to configure the protective mechanism in such a way that it provides high-quality protection only during arc burning.

When the plasma combustion process dies out, the window of the mask will be transparent enough to allow you to continue working without removing the protective device. Such welding helmets will be especially convenient for novice welders; in outdated models, the protective glass was too shaded, which made the welding process very inconvenient, due to poor visibility of the weld after the arc has died out.

Welding technology

When all the preparatory work has been carried out, it is necessary to connect the “ground” to the metal being welded. If you have to work with small parts, then welding is done on a metal table, to which the corresponding conductor is connected.

If there is no table, then the work can be carried out on a horizontally located metal sheet with a thickness of at least 2 mm, to which the “ground” of the welding machine is connected.

Before starting the welding process, it is also necessary to adjust the amount of protrusion of the welding wire from the nozzle. It is recommended to install such a protrusion no more than 5 mm. If the wire protrudes more significantly before starting welding work, it must be shortened using wire cutters.

Before making a continuous weld, it is recommended to position the parts to be welded as close as possible and to carry out spot welding in at least two places by striking the electrode against the metal at the joint. This is necessary to ensure the immobility of the parts being welded.

If you need to weld one sheet of metal onto another, then in this case you can use clamps to securely fasten the welded parts. Once the immobility of the parts is ensured using any of the listed methods, you can begin making the weld.

To weld parts, an arc igniter is made and the metal is melted at the junction of the metals to form a seam. If during the first attempts to weld parts the arc does not ignite stably, it is necessary to increase the current supplied by the welding machine.

For proper arc formation, it is necessary to briefly touch the wire to the metal parts to which the “ground” is connected. Then tear off the wire to the minimum possible distance to form a stable electric arc. In this way, the seam is welded from one edge to the other, gradually moving the arc over the surface of the parts being welded.

thin metal connection.

welding thick metal for beginners.

Aluminum welding

The use of shielding gases in semi-automatic welding makes it possible to perform high-quality connections of aluminum parts in this way. Welding aluminum is a rather complex process even for an experienced specialist; it will be even more difficult for novice welders to complete such work.

How to semi-automatically cook aluminum parts:

the surface of the welded parts is cleaned from the oxide film;
the workpieces are heated in a furnace or using a gas burner;
the welding machine is switched on to high-frequency alternating current mode;
a cylinder with argon or argon-helium mixture is connected;
The arc is ignited and its length is maintained in the range of 12-15 mm.

In this way, parts made of this low-melting metal are welded. To perform the work, you will need to purchase aluminum products as filler wire. And to ensure stable wire feeding, the device must be equipped with a larger diameter nozzle.

Conclusion

For novice welders, you learned how to weld semi-automatically with carbon dioxide correctly from this article. To consolidate the information received, it is recommended to immediately begin practical exercises and carry out a trial connection of parts using this method. Lessons will allow you to quickly master a semi-automatic machine at home.

It is recommended to start welding aluminum and other non-ferrous metals only after welding of ferrous metals is well mastered. This article tells you how to cook stainless steel with a semi-automatic machine.

(5 3,40 out of 5)

Source: https://plavitmetall.ru/svarka/poluavtomatom-dlya-nachinayushhix.html

KEMPPI welding machines: review of models and prices

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A huge niche in our country is occupied by the Finnish welding equipment manufacturer Kempi. The first devices were brought to us back in the 70s of the last century. The popularity and stable demand among users that every Kempi welding machine has is that the devices have important qualities:

high performance;
ease of operation;
reliability;
compliance with European quality standards;
accuracy;
safety.

The products of the Finnish manufacturer are in demand in more than seven dozen countries. For each region, the company adapts its product line, taking into account the needs of local customers, the quality of power grids in the region, the need for special functionality of inverters and other subtleties.

Kemppi brand equipment has confirmed certificates of ISO 9001 and ISO 14001 environmental standards.

the best models of KEMPPI welding machines

Kempey's intelligent welding machines are able to control the quality of the arc formed. As a result, a seam that is ideal in all respects appears on the workpieces. This is facilitated by the excellent ergonomic qualities of the devices, providing comfort during operation. Consider a wide range of models. You can buy a welding machine from the presented series at many points from official representatives of the company.

VIDEO: Setting up a semi-automatic welding machine

KEMPPI (Kempi) Minarc Evo

The series embodies new standards introduced in the EU regarding Electromagnetic Compatibility for all welding equipment produced. One of the typical representatives of the line is MINARC 230V. One phase is enough for it to work.

KEMPPI MinarcTIG EVO 200MLP

All units in this series fall under the class A parameter of the new European Union parameters. The models feature a stylish design and additional design changes. Suitable for both novice and professional welders. The models have an automatic arc pressure function and a large voltage reserve. The devices are capable of working with different types of electrodes. Modern technologies are used in the work:

PFC – for significant energy savings;
Lift-TIG – precision ignition technology;
TIG – DC welding.

It is possible to connect a remote control. Process adjustment is carried out at a considerable distance from the device. Power can be supplied from a generator or from a regular electrical network. The updated Kempi Minark 150 has become even more in demand among professional welders. It was replaced by the Minarc EVO 150 with a slimmer design and more powerful performance.

KEMPPI (Kempi) FastMig M

Professional equipment of this series is in demand among industrial consumers. Three types of equipment are available:

FastMig X Intelligent – for demanding applications using a variety of metals, including thin sheet welding;
FastMig X Pipe – used for welding root passes and various pipes;
FastMig X Regular - in demand for pulse welding in difficult industrial conditions.

The entire series is a universal solution to various needs. Capable of working with an extended cable up to 10 m and with a remote control.

KEMPPI (Kempi) Kempact MIG/Kempact Pulse

The main parameter is low mass. The equipment also combines compactness, high quality and efficiency. An example is the Kempact 2530 model, which is 70% of analogues that have stepwise current regulation. The device provides electronic regulation of current and voltage. There is also a lock in one position of the feed lever at the burner.

Equipment such as Kempact MIG is in demand in the process of welding thin-sheet metal surfaces. This makes them relevant for auto repair shops.

KEMPPI (Kempi) FitWeld Evo 300

Kemppi Fit Weld 300

The inverters of this series are characterized by high power, the ability to operate uninterruptedly at different voltage levels and compact dimensions. Such devices are ideal for working in confined spaces.

Due to the introduction of special technologies, FitWeld is able to save up to 60% of energy. It also has an increased speed of formation of tack welds in comparison with existing analogues on the market. The unit operates from 220 V.

KEMPPI MinarcMig Evo 200

MinarcMig Evo 200

The design of the unit is capable of working with wire lengths of up to 100 m. It is possible to connect both from the network and from a generator. The device ensures the clarity of the resulting seams and high-precision ignition of the arc. The manufacturer offers automatic and manual models in a series. The welding process is controlled by the light of the adaptive arc control system. The following types of filler wire can be used:

stainless steel;
carbon steel;
copper-silicon wire;
aluminum.

This list will provide ample opportunities for the user of the equipment.

KEMPPI (Kempi) ArcFeed

Kemppi Master S 400 500

The device produces high quality during operation using constant voltage (CV) or constant current (CC) sources. Demanded for working with filler cored wire. Due to its compactness, it is used in shipbuilding, when welding high-strength steels and in the oil and gas industry.

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During operation, it requires minimum requirements, which boil down to the presence of power cables and a grounding wire. Mechanical wire feed is used. The line has additional functions:

gas supply control;
welding current monitoring;
wire pulling button;
a timer that controls the gas supply after welding.

The LCD monitor screen used is protected by high-strength polycarbonate glass.

KEMPPI (Kempi) MasterTig ACDC

KEMPPI MasterTig MLS 2300 ACDC

The model range only works where there is a three-phase 20 A network. The maximum output current is 350 A, with a duty cycle of up to 60%. Standard functions include adjusting the gas supply before and after welding.

The equipment is used in different industries:

during installation and installation;
during repairs and maintenance;
in the manufacturing and chemical industries.

KEMPPI (Kempi) Master S

KEMPPI Master S 400

Demanded in professional high-performance welding conditions. Compact models are reliable power sources for welding work. They have optimal efficiency values. The series is suitable for those who prefer reliability combined with simplicity and durability of equipment.

Can be used with all types of electrodes. Can be used both in open areas and in closed workshops. The power of individual models reaches 400-500 A with a duty cycle of 60%.

Defining Characteristics

It is necessary to note the positive qualities inherent in most models of the latest generations of Kempey welding machines:

the equipment has the entire set of necessary basic and additional functions that allow you to configure the device for better weldability of workpieces and stabilization of the arc;
in most cases, devices are connected to electrical networks of standard parameters;
there are fine settings for current and voltage;
a wide range of products ensures the most accurate selection of equipment for users;
the devices are ergonomic, compact and lightweight;
an extensive network of official representative offices allows us to provide warranty conditions for equipment maintenance and repair;
many universal models are capable of working with different types of electrodes;
Camps are undemanding to external conditions, therefore they work stably in both heat and cold;
the equipment is adapted to Russian unstable power grid conditions;
all current information is displayed on the built-in displays.

Operating instructions for the Kempi welding machine

There are also disadvantages of the devices:

for some categories of buyers, a negative factor is the relatively high cost, although it is compensated by quality and reliability;
Some models are quite expensive in terms of energy, which does not allow taking advantage of the economic effect;
not all devices have a large supply of current and other operational characteristics, distinguishing devices from the budget segment.

Repairs are carried out in company workshops, where they are able to carry out work with devices to restore components, which include:

power boards;
inverter unit;
microprocessors;
wire feed mechanisms;
transformer units, etc.

VIDEO: Modern inverter semi-automatic KEMPPI

Source: http://www.PortalTepla.ru/svarka/svarochnyi-apparat-kempi/

Professional Finnish welding machines of the Kemppi brand

There are many worthy brands of welding equipment in the construction electrical equipment market, among which it is difficult to single out a single leader. The Kemppi welding machine is just such a device, one of the most reliable and high-quality devices.

Looking ahead, we note that the class of these inverters is due to complete electronic control over the welding process. The built-in intelligence function allows the equipment to independently reconfigure depending on the operating mode. It is believed that the Kempi technique is intended for professional activities. Considering the number of models presented by the company, such a wide scope of their application becomes understandable.

General information about the company

The Kemppi brand came to us from Finland. In 1944, the Kempi brothers founded the company of the same name. It was initially focused on research and implementation of innovative technologies in the field of welding. Today the company has gained recognition in the global welding equipment market. The quality of the products presented is evidenced by the presence of ISO 9001 and ISO14001 certificates.

European standards, as is known, are mostly aimed at ensuring production safety, as well as protecting the environment. All Kempi welding machine models are CE certified.

For quite a long time on the market one could find devices exclusively made in Finland, which was carried out in the city of Lahti, and only in recent years production was opened in India, as well as in Malaysia. Two new manufacturers are working to meet the needs of the Asian market.

Kempi has 16 official representative offices throughout the world. Russia, naturally, is one of the countries where such representation exists. Each owner, having purchased a Kemppi welding machine, can count on qualified assistance with repairs and maintenance during operation. In service centers you can purchase the necessary equipment and spare parts, while avoiding counterfeits.

Scope of application

The dominant advantage of professional technology is that it can be used in enterprises of any size. You can even give a list showing the scope of applicability, but it will not be complete.

Kempey welding is used for any work with metal structures. Basically, these works are related to their construction.
An important global industry is the oil and gas industry. Here welding machines have proven themselves exclusively on the positive side.
Camp welding (a modified expression that is used to emphasize Kempy welding machine models) is widely used in mechanical engineering.
We should not forget about construction. When constructing buildings and structures, welding work is often required.
The devices are also used in car repair shops, where sometimes jewelry work has to be done.
In shipbuilding, nothing is more valued than the quality of welds. This is the key to the safety of the future ship. Large companies trust Kempy.
Minor household repairs. Here we include all work performed on an individual basis. In simple words, individuals can also get a universal device for working with metals.

Types of inverter devices

The range of devices presented by Kempi is so wide that it is subject to classification. In the most trivial classification, all devices can be divided into three classes.

The first class includes household appliances. They operate in manual arc welding or argon welding mode. Such devices are connected to a two-phase network. The welding current reaches 200 A, while welding is carried out with electrodes with a diameter of up to 4 mm.
The second class is represented by semi-automatic devices. They feature a wire feed system, and the ability to adjust settings makes the welding process more convenient and efficient. Typically, semi-automatic devices are mobile, that is, they can be easily moved from one object to another. The devices have gained popularity among car body repair specialists, since welding in MIG and MAG modes allows them to work with thin sheet metals.
Industrial devices are easy to recognize even visually. They are usually large in size and have a significant mass. The power supply of such devices is three-phase, and the maximum current value can reach 800 amperes. The devices are supplied with special trolleys on which transportation is carried out. Typically, such powerful devices are used in shipbuilding on drilling platforms, where it is necessary to work with massive structures.

Advantages

Regardless of the functionality of the device, the equipment of the Finnish company Kempi has a number of qualities that distinguish it from its analogues. Thanks to the use of stepless settings, manufacturers managed to achieve energy savings of 10%. If this figure does not mean anything in everyday life, then on an industrial scale the savings are quite good. When switching to idle mode, energy consumption is reduced by 8 times.

One of the indicators of the efficiency of a device is its efficiency. If we compare with analogues, Kemppi models have a higher indicator. The average efficiency of installations reaches 87%.

It should also be noted the high degree of adaptation to difficult climatic conditions. The temperature range in which the Kemppi semi-automatic welding machine can operate is very wide, it covers both negative and high positive values.

In addition, the device is reliably protected from moisture and dust.

The semi-automatic inverter can easily withstand voltage surges. Not only is it not afraid of increased and decreased values from the nominal value, it continues to perform high-quality welding, even if the voltage drops to 160 volts. Due to the high welding current, most industrial machines are capable of working with almost any electrode. Let us remember that there is usually a limitation on the diameter of the electrodes used.

Welding modes are controlled from a special panel, but some models provide remote control. This function is simply irreplaceable when carrying out work at height, when the device remains on the ground. The information content of the panel accompanies the master’s full control over the process. All parameters are displayed on a digital display.

The lineup

The total number of welding machine models is unusually large. They all differ in the provided welding modes, power and maximum current value. At the same time, industrial devices are considered more functional, as they have many additional functions. However, the catalog from the official representative breaks down the models into categories, depending on the type of work performed.

Welding in TIG mode is carried out in a gas environment. Argon acts as a shielding gas. The material for this mode is tungsten electrodes. The mode itself is divided into two types.

The TIG-DC (direct current welding) mode is used for steels.
TIG-AC mode (alternating current welding) – for aluminum alloys.

Features of the technology allow you to obtain an even seam and avoid metal spattering. This method is used for welding thin sheet metal.

MinarcTig Evo 200/200MLP. An inverter semi-automatic device that provides stable ignition of the arc even at a current of 5 A. The maximum welding current is 200A. The device is connected to a single-phase network. There are functions of a gas supply timer and changing the welding current. MLP models weld in pulse mode.

MinarcTig 250, 250MLP. Mobile and compact welding machine. It also has good arc ignition. The high quality of the results allows it to be used in operations requiring pinpoint precision. Maximum current – 250 A. Connects to a three-phase network. It is possible to work in MMA mode.
MasterTig MLS 3000/4000. Allows you to maintain good arc ignition even when using a long cable. High frequency pulse welding increases the productivity of the device. Operation from an alternating current generator is possible.

MMA mode involves manual arc welding performed with coated electrodes. It is used in working with carbon steels and stainless steel. While carbon steel can be welded using alternating and direct current, stainless steel can only be welded using direct current. This mode is advantageous due to the absence of gas cylinders, variability of welding planes, and high efficiency. However, during operation it is necessary to constantly remove slag from parts.

MINARC 150, MINARC 150VRD. This inverter is only available in Finland and combines MMA welding with the ability to switch to DC TIG mode. The maximum diameter of electrodes for this device is 3 mm. The case made of special plastic protects the device from shock and moisture. You can work even in the rain. The inverter weighs only 4 kg and is equipped with a strap for easy carrying. Powered by a single-phase network. Welding current is adjustable from 10 to 140 A.
FastMig KMS 400 AS. A number of features of this model can be highlighted. These include power regulation, starting current power control, changing arc parameters and the ability to select CC/CV mode. Three-phase power supply.

KempGouge ARC 800. The device is specially designed for gouging using a carbon arc. It is efficient with relatively low energy consumption. The strength of the welding current is adjusted both on the panel and from the remote control. It is used in foundries, in shipbuilding, as well as in the construction of metal structures and structures.

In the MIG/MAG mode, welding is carried out with a special wire in a gas environment. Argon or carbon dioxide is most often used. This mode is used for carbon and high-alloy steels. The advantage is no smoke, no slag. But it requires a gas cylinder to operate. If welding is carried out with flux-cored wire, then a cylinder is not needed. The only negative is the expensive material.

MinarcMig Evo 170/200. This model is positioned as an adaptive device and is considered a mobile device. In any application, a high-quality seam is obtained. The arc is ignited at a current of 16 A. The maximum current is 200 A. It operates in manual or automatic mode. The material can be flux-cored wire, all-metal, steel, aluminum or copper-silicon. The scope of application is wide and is not limited by the thickness of the metal.
Kempact RA. A device for economical operation. Any inert gas can be used as a shielding gas. Equipped with an additional WireLine function, which alerts you when maintenance is required. The wire feeding mechanism is illuminated. There is a HotSpot function. The gun switches to 2- or 4-stroke welding mode.

The actual number of models is many times greater than the number presented. As for the price category, Kempi devices are considered expensive. The simplest compact devices can be bought for 50,000 rubles. The price for an industrial device increases significantly. On average, such a device costs from 100 to 200 thousand rubles.

review

Source: https://svarkoy.ru/svarochnye-apparaty/kemppi.html

Campy welding machine: advantages, varieties and analogues

Most people are sure that equipment produced abroad is much better in quality than that produced within their native country. Proof of this can be found in the Kempi welding machine, manufactured in Finland. The device is widely used in our country, as it is of high quality. It is often used by professional welders.

Kemppi are used in many industrial areas. They are used when laying pipelines and in the construction of various metal structures. With their help they carry out construction work and make repairs. Such a wide range of applications for Kemppi devices is due to the huge number of models and their types. Work is ongoing non-stop to create more and more new models, each next of which is designed to simplify the welding process.

Types of apartments

Kemppi produces various types of welding equipment. Work is also being carried out in the field of automated technology.

The most common types of Kemppi products include the following welding machines:

MIG. Electrode wire is used for welding, and gas plays the role of a protective medium. Typically, such welding is used to fasten steel elements. The device consists of a pair of blocks that move on a special trolley.
TIG. When welding, infusible tungsten electrodes are used. The device is easy to use and is sold at a low price.
MMA. For welding, conventional inverters are used, which make it possible to use piece electrodes.
MAG. They are arranged in a standard way, but are capable of performing many additional functions.

Today, there is also active development of welding machines that can operate in automatic mode.

Advantages of the equipment

Kemppi machines meet all requirements and can perform secondary functions, making welding work much easier.

They have many advantages:

This equipment is modern and high-tech.
The newest models are capable of performing many secondary functions that improve the weldability of metal workpieces and stabilize the arc.
The device operates from a regular electrical outlet.
The voltage is very precisely regulated.
The Finnish company produces a huge number of different products suitable for almost any type of welding work.
Almost all models of Kemppi devices are relatively small in size and light in weight. Hence, they are very convenient to use. You don't need to look at the equipment for long to understand which company produced it. Each model released by Kemppi has a special signature design.

In order to purchase at least one such device, it is not at all necessary to go to Finland. Moreover, you won’t have to look for it for long on the territory of our country. In Russia there are official representatives and points where these devices are sold everywhere.

Comparison of two models

Anyone who has decided to do welding using a Kemppi machine, but has not yet purchased such a device, is sure to ask the question of choosing a model. This question cannot be avoided, because the devices often have several differences, and the welding work itself may vary.

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When choosing a suitable model, you should pay attention to the main characteristics of the devices. An important parameter is power consumption. It is also important to find out at what voltage the device operates and what the current frequency should be.

You can, for example, compare two models of welding machines from Kemppi - Minarc Tig Evo 200 and Minarc Evo 150 - with each other based on the main characteristics:

The maximum current strength of the first is 200 A, and the second is 150 A, which is why such numbers are attributed to the name.
The Minarc Tig Evo 200 consumes 6 kVA of power, while the Minarc Evo 150 consumes 1 kVA less.
The voltage of Minarc Tig Evo 200 is also higher and is 95 V, while for Minarc Evo 150 this figure is 85 V.
Both devices operate at a current frequency of 50 Hz.
Both models are ideal for Tig welding. They were developed taking into account the requirements that professional welders place on equipment mobility.
Their power is designed to perform a wide variety of operations. They can be powered either from the mains or from a generator. The current can be adjusted remotely.

In addition to the device itself, the kit also includes a grounding cable, a gas hose and a special strap for easy carrying.

Analogs

In addition to Kemmpi, many other companies located in different countries also produce and produce welding machines. Russia is no exception.

For example, the following kemppi analogues are widely used in our country:

"Aurora". It is distinguished by its low price and flexible characteristics.
Devices from the Torus company. The main office is located in Moscow. This equipment is also inexpensive and can work much longer than the warranty period.
Welding equipment "Forsazh". Their development is carried out in Ryazan. They are distinguished by modern design and reliability.

In terms of quality, all of the above-mentioned devices are inferior to the products of the Finnish company, which has been the undisputed leader in this area for several years now.

Professional welders are confident that no other machine can connect the components of a metal structure as efficiently as any model from Kemppi. The equipment of the Finnish company is recognized as the best today. It is exported to all major countries and is considered the standard of high quality.

Source: https://obrabotkametalla.info/svarit/preimushhestva-svarochnyx-apparatov-kempi

How to cook by camping welding

Semi-automatic welding is usually done using wire in a protective gas environment. This process is, in fact, a classic electric arc welding of metal, which uses the thermal energy of an electric arc connecting the end of the electrode and the parts being welded.

Due to the greater resistance in the arc relative to the resistance in the electrode, it is the arc plasma that releases more significant thermal energy, which leads to melting of nearby surfaces (workpiece and electrode), where a weld pool is formed. When the resulting liquid metal crystallizes and cools, a weld will form, the most reliable joint in existence today.

Semi-automatic welding

A distinctive feature of this type of welding is the use of a movable consumable electrode (wire) and shielding gas.

It is necessary to protect the electric arc so that the molten metal and the environment do not come into contact with each other, because this process (oxidation of nitrogen and oxygen) entails the formation of components such as oxides and nitrites, which, when entering the metal, lead to deterioration in the quality of the weld. It is for these purposes that cylinders with protective gases are used: with argon, helium, carbon dioxide or mixtures thereof.

Principles of semi-automatic welding using wire

Semi-automatic welding is carried out according to the following principle. A moving live wire is passed through a gas nozzle, then it melts as an electric arc acts on it, but a constant arc length is maintained using an automatic feed mechanism. This is the essence of the automation principle, and the choice of welding direction and speed is carried out independently.

You can weld without using gas.
To do this, they use self-shielding (“powder-cored”) wire, which contains manganese, silicon and other deoxidizer metals, the combustion of which creates a protective environment around the wire. welding equipment

The welding installation must consist of the following components:

burner;
a hose through which wire and gas are supplied;
wire feeding mechanism;
control panel;
coil of wire;
electrical wire;
semi-automatic control unit;
gas supply hose;
reducer that reduces gas pressure;
heater;
high pressure gas cylinder;
rectifier.

Semi-automatic welding design and operating principle

Semi-automatic welding is an electrical device designed to convert electrical energy into thermal energy using an effect such as an electric arc. The process is carried out using a melting electrode “electrode wire”, which is constantly fed to the welding site.

The electrode is a calibrated copper-plated wire of a given thickness. The coating of the wire is done to ensure good sliding and electrical contact. The wire is placed on top of a special spool, which allows it to unwind and feed evenly during welding.

The welding process is carried out manually, using the following devices: a power source, an electrode supply mechanism, flexible hoses and a gun that the worker uses to apply the weld.
Semi-automatic welding machines are divided according to seam protection:

• for submerged arc welding; • for welding work with shielding gases;

• for welding work in which flux-cored wire is used.

Most often, semi-automatic machines are used for welding work with shielding gases. This type of welding is used for welding structures made of carbon and alloy steels, or non-ferrous metals.

Carbon dioxide contained in high-pressure cylinders and supplied to the gun is used as a protective gas. Before entering the welding zone, the gas is pre-stabilized using a reducer. Welding in a shielded gas environment has a number of advantages compared to welding using coated electrodes:

Technological advantages of semi-automatic welding

high performance and quality of seams;

semi-automatic welding of short-length seams can be carried out in any spatial position;

Connection welding can be carried out in a hanging position, the metal will not flow out.

Production advantages:
no harmful emissions during the welding process.

Economic advantages: low cost of welding performed using carbon dioxide compared to the price of welding with electrodes.

high indicators of quality and manufacturability.

Semi-automatic welding is an indispensable thing in everyday life. Weld here and there, and if you own a car, then even more so, the equipment periodically needs cosmetic repairs. Making high-quality welds in a semi-automatic machine is a much simpler task than with electrode welding.

If you are going to purchase a semi-automatic welding machine, you need to find out what voltage your electrical network has. If the voltage is lower than the norm, then you should choose a more powerful device, since power indicators depend on the indicators of the electrical network.

If you have access to three-phase voltage (380V), then you should definitely choose a three-phase device. This is due to the fact that the best rectifier current indicators are obtained only when three-phase rectifiers are used, and welding quality indicators depend on this.

Semiautomatic welding inverter

The semi-automatic welding inverter is a fairly new unit on the welding equipment market. However, it is already very popular and is used everywhere for surfacing and welding metal products, parts and structures. These devices carry out welding on electrode wire, protected by inert gases.

Distinctive features of a semi-automatic machine from an inverter

Welding inverters gave impetus to the development of welding equipment, which is being improved every day. The development of welding technologies has also gained momentum. All these factors led to the creation of an inverter-type semi-automatic machine. Inverter machines have a lot of advantages compared to traditional designs, which makes it possible to say that inverters are the most popular type of welding equipment offered on the market. It's all about their design features.

Source: https://MyTooling.ru/instrumenty/kak-varit-kempingom-svarkoj