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Circuit Breaker Trip Unit Resistance Welding System
Magnetic trip unit eight-station automated resistance welding machine
Dimension (unit: mm)
Item Height Length Width
Size 1904 2550 3113
Main technical parameter
Item Parameter
Number of welding machine pieces 2
Rated capacity (KVA) 110(55*2)
Power supply (V/φ/HZ) 380/ 3 /50HZ
Primary current (A) 136
Rated duty cycle (%) 20
Secondary empty voltage (V) 8.9
Work station type/ Amount of working station rotating disc type /8 station
Cylinder diameter *stroke (mm) Φ40*15
Electrode dimension (mm) 8*8*100
Workpiece dimension( mm) Coil diameter Φ1.4~2.2, thickness of frame plate 1.2, terminal plate thickness 1.2
Welding capacity (mm) Φ1.4~2.2+ 1.2+ 1.2
Welding speed (m/min) (s/piece)(time/s) 4.8s/piece
Working pressure (kgf/0.5MPa) 50
Compressed air pressure (MPa) 0.6~0.7
Compressed air consumption (0.4MPa air pressure) (L/ welding spot) 10
Cooling water consumption (L/MIN) 12
Motor power of cam indexers (KW) 1.5
Primary cable specification (MM2) 3*25+2*16
Max. short cut current of transformer (A) 19800; 2 pieces

1. The Heron circuit breaker trip unit resistance welding system is equipped with three automatic feeding systems and three medium frequency 4000HZ DC resistance welding machines.
2. The welding system is designed with an automatic positioning fixture to realize fixture welding for different angles with the help of an automatic transferring system.

Background introduction
The equipment is designed for welding three parts of circuit breaker trip units. The unit can quickly perform the functions of deeding, positioning, and welding all automatically for improved production efficiency.