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  • Building
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The welding machine MT-2103-2 is designed for contact spot welding by alternating current of low-carbon and stainless steels parts.

The special design of the lower console allows welding shells with diameter of 200 mm and length of 900 mm.

Due to its technological specifications, the welding machine allows welding a wide range of products. The thickness of the material to be welded depends on the grade of material and the quality requirements of the welded joint.

Ranges of welded thicknesses

Low carbon steel

 1.0+1.0 - 3.5+3.5 mm

Low alloy steel

 0.8+0.8 - 3.0+3.0 mm

Stainless steel

 0.8+0.8 - 2.0+2.0 mm

Titanium alloys

 1.0+1.0 - 2.0+2.0 mm

Chromium-Nickel alloys

 0.5+0.5 - 2.0+2.0 mm

Copper alloys

 0.5+0.5 - 0.8+0.8 mm

Aluminum alloys

 0.5+0.5 - 0.8+0.8 mm

Ranges of diameters of welded cruciform joints of rod fittings

Class A240

 6+6 - 16+16 mm

Class A300, A400C

 6+6 - 14+14 mm

Class A500С, A600C

 6+6 - 12+12 mm

Advantages of the welding machine MT-2103-2

Made of Russian raw products and materials that have all the necessary certificates

Microprocessor control based on the contact welding controller RKS-810 of own production providing memory storage of 20 technological programs of welding and stable reproduction of welding parameters

Setting of welding parameters on the front panel of the contact welding controller RKS-810 and digital display of the set parameters

As a source of welding current, a transformer of own production, filled with an epoxy compound, is used

Liquid cooling of welding transformer and secondary circuit

Independent regulation of welding and forging compression forces by two reducers with back pressure in the pneumatic cylinder

Additional options:

Stand-alone closed-circuit liquid cooling system

Stand-alone compressor unit

Electrodes for contact welding of various configurations

Assembly and welding devices 

Mains voltage at 50 Hz

380 V

Maximum secondary current

21 kA

Rated continuous secondary current

11 kA

Maximum power at short circuit

200 kVA

Power at PV=50%

148 kVA

Secondary current at PV=50%

16 kA

Secondary no-load voltage

5.37...9.13 V

Compressing force of the electrodes:

  - maximum at a compressed air pressure of 0.5 MPa

 - minimum at a compressed air pressure of 0.1 MPa


1270 daN

254 daN

The nominal sweep

1340 mm

The nominal opening 

200 mm

The stroke of upper electrode:

- total (working + optional)

- working


100 mm

10 - 30 mm

Welding power regulation:

- stepped

- phased


6 steps

25-100 %

Design flow rate of cooling water, not more than

700 l/h

Overall dimensions of the machine (L×W×H), not more than

2545×560×2350 mm

Machine weight, not more than

1462 kg

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