In this machine, the oil pump drive the cylinders to produce propulsion. The intermediate device heat the pipe material and expand many different size of pipe or tube. max wall thickness is Ф610X35mm.

1、 Master cylinder：

inside diameter: φ160mm outside diameter: φ220mm trip: 8m

The normal pressure:21Mpa the max thrust of the 2 cylinders 160T

2、 Hydraulic pump station

25scy plunger pump 1 set 、 7.5KW Motor 1 set ( to converse frequency adjust the speed of the master pump)

PV2R12-14-60 leaf pump 1 set 、11KW Motor 1 set The normal moving forward speed is 0—25cm/min , the max speed backward 300cm/min

4、Medium—frequency power supply：500KW