Two step hydraulic pipe expanding machine working principle

Two step hydraulic pipe expanding machine structure and working principle:

The pipe expanding machine for the two oil cylinder or four cylinder parallel average pushing machine, pump valve adopts integrated form.Outside diameter and length of the steel tube in the expanding system, set up power of medium frequency heating power supply, the oil cylinder thrust and schedule.
The pipe expanding machine is composed of the following components: hydraulic driving system host, active roll automatic up-down material mechanism, hydraulic pump station, the pipe device, work station, electrical control cabinet, intermediate frequency power supply, water, cable, compensation capacitor, intermediate frequency adjust frame, coil reactor.