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MTV-7500 dc spot welding machine

Welding machine MTV-7500 is designed for contact spot welding by constant (rectified) current of metal structures and products of responsible use.

Technological capabilities of this welding machine allow welding of a wide range of products. The thickness of the material to be welded depends on the material type and quality requirements to the welded joint.

The welding machine provides the diameter of the cast core of the welded point which corresponds to production instructions of aerospace and branch instructions with the increased requirements for the quality of the welded joint.

Welding thickness ranges

Low carbon steel 0.5+0.5 to 8.0+8.0 mm
Low alloy steel 0.5+0.5 to 4.5+4.5 mm
Stainless steel 0.5+0.5 to 4.0+4.0 mm
Titanium alloys 0.5+0.5 to 4.0+4.0 mm
Chromium-nickel alloys 0.5+0.5 to 3.5+3.5 mm
Copper alloys 0.5+0.5 to 2.5+2.5 mm
Aluminum alloys 0.5+0.5 to 3.0+3.0 mm

Advantages of the welding machine MTV-7501

  • It is produced of Russian raw materials that have all the necessary certificates
  • High dynamic characteristics of the drive of the welding force
  • Uniform load on the grid by 3 phases
  • More efficient power consumption and higher efficiency compared to AC machines
  • DC power supply with 6300 A diodes
  • Liquid cooling of the welding current source and secondary circuit
  • The machine is equipped with a control system based on an industrial PC, which allows to:
  1. Differentiate the access rights of personnel (technologist / welder)
  2. Create and edit welding programs
  3. Log welding points
  4. Form the pulses of the welding current in the necessary shape
  5. Carry out a smooth and step-by-step adjustment of the welding current
  6. Stabilize the welding current when the mains voltage changes

Additional options:

  • Autonomous liquid closed cooling system
  • Autonomous compressor device
  • Electrodes for contact welding of various configurations
  • Assembly and welding devices 




         *Please pay attention that the technical specification and the appearance of the equipment placed on this web-site are only for informational purpose and are not a public offer. The producer reserves the right to make any changes.

         **Copying the data without permission of the web-site administration is prohibited.

Mains voltage at 50Hz frequency 3x380V
The highest secondary current 72 kA
Rated continuous secondary current 24 kA
Maximum power in case of short circuit 596 kVA
Power at 50% duty cycle 250 kVA
Compression force of electrodes: - the largest at compressed air pressure of 0,6 MPa - the smallest at compressed air pressure of 0.1 MPa
3200 daN
100 daN
Nominal stick-out 1500 mm
Nominal spacing 300 mm
Upper electrode stroke: - full (working + additional) - working
100 mm
5 to 30 mm
Limits of idle voltage adjustment 2.6 to 5.8 V
Welding power adjustment:
- stepped
- phase

5 steps
25 — 100 %
Electrode compression drive pneumatic straight
Cooling of current-carrying parts forced liquid
Overall dimensions of the machine (L×W×H), no more than 3000х1000х2500 mm
Weight, not more than 3000 kg
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