Organization of maintenance of contact machines. Repair of spotters in Welding-Zone service centers Repair and adjustment of spot welding machines

Our service department accepts orders around the clock for the repair of failed spot welding machines in Moscow and the Moscow region. You can apply on the website or by calling hotline to our dispatch service. We can send you a specialist for on-site repairs, or you can bring your equipment to one of our service centers yourself. You can also take advantage of free transportation of equipment to and from service.
Free diagnostics, high-quality spotter repairs and a company guarantee provided for all work and installed spare parts will be the key to uninterrupted operation of the equipment in the future.

We offer professional spotter repairs with a long warranty on all work.

We are the largest service company in the Moscow region. Only we have a large warehouse of spare parts, modern equipment, and a network of service centers located in every district of Moscow. I would also like to mention our team of specialists. A complex system selection and training of service engineers allows us to guarantee our clients the impeccable quality of the work performed and long-term uninterrupted operation of the equipment in the future.
Nevertheless, we try to keep our prices slightly lower than those of our competitors, which, combined with high quality, gives us the most favorable conditions for repairs in Moscow.

The operation of resistance welding machines includes daily observation by a welder of its normal operation during the welding process and maintenance of mechanisms and electrical equipment performed by service technicians, electricians, and mechanics.

Before welding and putting the machine into operation, the technician checks the condition of the electrodes, the stroke and mobility of the electrodes, the presence of lubricant in the lubricator, and the stroke of the upper electrode.

The required compression force using a pressure gauge, open circuit voltage, and welding time are checked in accordance with the technology.

By means of test welding, the quality of the connection is established. appearance and for strength.

In addition to setting up the machine before the work shift, the service technician conducts a daily preventive inspection and monitoring of the machine’s operation in the following areas:

mechanical part : checking the tightness of pneumatic and hydraulic systems, checking the absence of noise and heating of rubbing and rotating parts;

electrical part : checking the heating of the secondary circuit, inspecting the transformer and checking the permeability of the water cooling system, inspecting control equipment and switching devices, checking the operation of contactors, electric motors and electro-pneumatic valves.

Welding machine adjusters must be certified in accordance with the requirements applicable at the enterprise.

Standards for servicing welding equipment by an adjuster are established by the enterprise, taking into account the type of equipment, its operating conditions and the responsibility of the products being welded.

When welding products of group A, the following standards for servicing machines by one operator are recommended: 10 standard machines (type MTP, MShP, MT, MSh), or five complex machines (MTK, MTV, MShV), or two multi-point machines - 25 pairs of electrodes on each car.

With a sufficiently large number of welding machines at the enterprise, two organizational forms of adjustment are possible - either through the department of the chief power engineer, or through special repair and adjustment shops, when in a specialized workshop all work related to the maintenance and repair of equipment is performed by specialists who are sufficiently competent in both matters welding equipment (its mechanical and electrical parts), and in welding technology. In this case, adjustment groups have isolated rooms and warehouses in which necessary equipment, equipment, electrical tables and stands, metal workbenches, electrical measuring instruments.

The adjustment and repair group works according to work orders and when calling a welder in emergency situations. In this case, the service technician is responsible for the technological adjustment of the machine, the mechanic is responsible for the mechanical part, and the power engineer is responsible for the pneumatic, hydraulic and electrical parts.

When setting up, special attention is paid to lubrication of moving parts. The sliding guides of the slider and the moving plate are regularly lubricated through ball valves with grease guns. Sliders with roller guides are lubricated with technical petroleum jelly.

Machine oil is poured into the roller rotation drive gearboxes. Open gears are lubricated with grease or petroleum jelly. Technical castor oil or turbine oil is poured into the lubricators. Other oils should not be used as they can cause swelling and failure of rubber seals and seals. The lubricator is adjusted so that for every 10 strokes of the compression drive there is one drop of oil.

It is recommended to pour up to 100 g of technical castor or turbine oil inside the pneumatic cylinder, on top of the piston.

The sliding current-carrying contacts of suture machines are lubricated at least once per shift with castor grease with white flake graphite in a ratio of 30% pure graphite grade A and 70% first grade castor oil.

To lubricate sliding contacts, it is effective to use electrically conductive lubricant Esvol, which has greater operational durability.

To ensure a consistently low resistance of the secondary circuit, it is necessary to systematically monitor the resistance value of the secondary circuit using an F-415 microohmmeter. Deviation from passport data can be no more than 20%. For large deviations, measure the resistance of all moving and fixed contacts of the secondary circuit.

The normal resistance of fixed contacts should not exceed 2 μΩ, movable contacts - 4 μΩ. If these resistances are exceeded, the contact connections are disassembled, thoroughly cleaned, assembled and securely tightened.

The main task of servicing welding machines is to maintain their performance and stability of reproduction of specified welding modes throughout the entire depreciation period (10 years).

The system of planned preventive maintenance (PPR) adopted by enterprises includes scheduled inspections and repairs (small, medium, major). PPR work is carried out according to a pre-drawn plan, taking into account the type and operating conditions of the equipment.

In emergency situations, unscheduled work is carried out.

Every order we take on is, to a certain extent, a test and exam for our employees. Despite many years of experience in repairing resistance welding installations in Moscow and the Moscow region, we continue to discover something new for ourselves, since technology does not stand still and manufacturers are constantly improving their devices.
Together with them, we are improving, and so far there has not been a single case when any innovation from a manufacturer would baffle our craftsmen. Due to the fact that they are all professionals in their field, any new problems that we have to face are quickly analyzed and the optimal solution is selected for them, which allows us to be one of the best service centers in Moscow.

We guarantee high quality and minimal deadlines.

Only through a detailed study of the complete picture of the condition of your resistance welding machine, which falls into the hands of our craftsmen, can we guarantee that after our repair it will not fail again. For this reason, even in case of minor breakdowns, we carry out a complete, in-depth diagnostic of your equipment, so after our repair you will be able to use it for a long time without repeated incidents, especially if you follow the operating recommendations issued by our technicians.
Repair of resistance welding machines will be carried out by specialists from our service center at a high professional level and with a company guarantee.

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