Product Description

LORS/TECNA

Spot Welding Gun Model 7913

 MODEL 7913 AIR OPERATED, WATER-COOLED SUSPENDED SPOT GUN
FEATURES:

  • For heavy duty work in auto body repair.
  • For light production work in industry.
  • Complete with synchronous electronic timer 2 to 65 cycles and SCR contactor.
  • Compensation circuit starts timer only when current can be applied, which gives better results when joining coated, dirty or rusted material.
  • Phase shift heat control permits vernier adjustment of current for welding light gauge materials and stainless steel.
  • Balanced construction for easy operation.
  • Additional arm coupling to provide larger opening between arms.
  • Threaded base for bench repair.
  • A built-in differential pressure switch operates the timer when the electrode force is correct.
  • All transformers are coated with F class insulation material that does not dry out and become brittle.  Test are made using 4000 volts.
  • Pulsation weld time control available.

INDICATIVE PERFORMANCES
Arms length mm. Max. force at electrodes daN Electrode Stroke mm. Max. thickness on pickled mild steel mm.
150 120 35 2 + 2
250 70 50 1,8 + 1,8
350 52 65 1,5 + 1,5
500 40 90 1,2 + 1,2
Thickness mm Spots/hour Dia. electrodes tip mm.
0,8 + 0,8 2000 4
1 + 1 1600 4,5
1,2 + 1,2 1000 5
1,5 + 1,5 700 5,5
1,8 + 1,8 700 6
Dia. 5 + 5 1100
Dia. 6 + 6 500