Resistance Welding

RT – RL

SEAM RESISTANCE WELDING
ENABLES TO OBTAIN WATER TIGHT SEAM WELDING
RT–RL Seam welders range are standard supplied for monophase mains connection. Three phase versions, also with Medium Frequency inverter (1000 Hz), are available for special applications. The wide range of equipment configurations enables water tight seam welding of cylinders, fire extinguishers, radiators, tanks and similar items with excellent quality results.
Resistance Seam Welding
Seamwelding technology
Seam welding is a welding process by electric resistance. In such joining process overlapped metals are welded under pressure by a sequence of spots made by copper alloy rotating discs. Depending on the choice of the parameters, such as spot frequency and rotation speed of the electrodes, two typical joints are usually achieved.

Other Characteristics

  • RT version for transversal welding only
  • RL version for longitudinal welding only
  • Water cooled seam heads with silver contacts
  • Reduced maintenance costs
  • Self-lubricated pneumatic components
  • Frequency converter to adjust the welding speed of the discs

RT – RL: Technical Features

TECHNICAL DATA RT 80 RT 80 2T RT 81 RT 180 2T RL 81
Single phase input 50/60 Hz V 400 400 400 400 400
Rated power 50% kVA 60 60 80 180 80
Fuse (delayed action) A 150 150 200 400 200
Throat depth mm 450 450 800 450 800
Work stroke mm 80 80 80 100 80
Electrode force at 600kPa daN 470 470 470 1200 470
Max welding capacity mild steel mm 1,2+1,2 1,2+1,2 1,2+1,2 2+2 1,2+1,2
Max welding capacity stainless steel mm 1,5+1,5 1,5+1,5 1,5+1,5 3+3 1,5+1,5
Dimensions (LxWxH) mm 1150x800x2020 1150x800x2020 1450x800x2100 1450x800x2100 1450x800x2100
Weight kg 800 900 900 1540 900