Argon Arc Welding Stainless Steel Pipe Welding Machine For 14 mm - 50.8 mm Pipe Detailed: SA welding rotator can automatically adjust the wheels to touch the tank (Pipe) body by the weight of the workpeice. The speed control is through stepless inverter which can continous variable speed. Model Max loading (kg) Applied job dia (mm) Wheel dia.& width(mm) Wheel linear speed(m/h) Motor power (kw) Rubber (or PU) Metal GZ5 5000 Φ250-2300 Φ250*100 2*Φ244*20 6-60 0.75 GZ10 10000