Squarwire cagewelding machine is a special-purpose welder used to produce the high-strength concrete pipe pile reinforcement cages. The welder is widely applied to reinforcement cage welding by self-stressing and prestressing pretensioning method and post-tensioning method. 1. Large diameter of weldable main reinforcement, long frame, small torsion and good integral performance; 2. Small weld strength loss; 3. Adjustable cage pitch and quick forming; 4. High-speed and stable operation and high efficiency; 5. Variable frequency control and high stability and reliability; 6. Rational structure and easy and convenient operation and maintenance. parameters: 1. Diameter of welded frame:250*250MM to 500 *500MM as users require) 2. Length of welded reinforcement cage: 7M-15M (lengthened to 45M in special case) 3. Number of longitudinal reinforcements: 6, 7, 10 or 7, 10, 12, 14, etc. (as users require) 4. Diameter of longitudinal reinforcement: ø7.1, ø9.0, ø10.7 5. Diameter of hoop reinforcement: ø4- ø6 6. Cage pitch: 0-100mm 7. Weld line speed: MAX7200mm/min 8. Driving power: 8.4KW 9. Welding power: 200KVA 10. Main motor RPM.: 0-64r/min 11. Welding mode: electric resistance welding 12. Control mode: automatic control 13. Welding material: any reinforcements with carbon content less than 0.20% 14. Weld joint strength loss: ≤5% 15. Pulling force or shearing force at weld joint: ≥200kg 16. Cooling mode of welding transformer: air cooling, self cooling 17. Welder power supply: 380V±5% 50HZ 18. Ambient temperature: -5°C--+35°C 19. Relative humidity: not mare than 85% 20. Total weight of welder: ≈5T