A bench AS308-2 for MIG/MAG welding longitudinal seams of thin-walled tubes.

The outlook of the bench AS308-2.
    AS308-2 intends for automatic MIG/MAG welding of longitudinal joints of thin-walled tubes from low-alloyed steels up to 500 mm long, diameter - 100-600 mm, thickness of metal - 1.4...3.0 mm.

    AS308-2 consists of:

  1. Frame;
  2. Mechanism of longitudinal moving of the torch;
  3. "Key row" mechanism of fixation of welding edges (pneumatic drive);
  4. Mechanisms of torch raising with a manual corrector of its position;
  5. Control block;
  6. Operator console;
  7. Set of welding equipment;
  8. Cooling system;
  9. Pneumoapparatus.

Download a photo of the welded product. 34 KB.

    Technical dates:
Regulating range of welding voltage, V
15.5 ... 32.5
Regulating range of welding current, A
Regulating range of welding speed, mm/s
Protective gas
(Ar + CO2)
Diameter of steel welding wire, mm
1.0, 1.2
Rated value of the torch path deflection, mm, at most
Mechanisms drive of products edge-fixing and torch raising
Clamps amount at 500 mm tube length, pc
3 x 2
Air pressure, MPa, not less
Cooling of the copper backing
Overall dimensions of the bench cell, mm
2500 x 2000 x 2500
    AS308-2 peculiarities:
  1. Programmed control all mechanisms and devices of the machine, as well as diagnostics of their condition, is realized by a controller.
  2. Base program ensures: moving the torch in the welding start position, starting of the arc, delay of moving the torch for shaping a puddle, moving the torch with necessary speed, crater welding, raising of the torch and returning it on march speed in the source position.
  3. It has possibility to preset two and more modes of welding by means of the task board modes for the quick machine readjustment to the welding of tubes of different thickness;
  4. Continuous adjustment of welding parameters;
  5. Quick machine readjustment to the welding of tubes of different length.
  1. In 2006 at "SOYUZ", Dnepropetrovsk, Ukraine;
  2. In 2008 at "Prompribor", Livly, Russia;
  3. In 2011 and 2013 two benches at "Pozhtehnika", Zaporozhye, Ukraine;
  4. In 2013 at "UZGTS" Novouralsk, Russia.