With the development of steel pipe deep processing technology in the factory, this product has gotten a full range of technical improvements. It combines together extra-short stress line taper mold expanding technology, digital control medium frequency induction heating technology, back pressure free, no back pressure low-energy consumption hydraulic transmission technologies. All push plate gates adopt electromagnetic reversing valve, which has realized gate double control at site and operation desk and increased multiple operation automatic technology such as mother pipe hydraulic align and right clamping.
