Host framework prestressed frame, the key mechanical parts of high quality alloy forged steel rod to a fundamental solution to the whole body due to internal steel casting defects caused by the hidden strength of body and chassis high strength and good rigidity ; brake with shift-type brake full stroke, a large braking force, braking sensitive and reliable, the wear of the friction with light, long service life, replacement, adjustment of the mold easily; manipulation using direct push cylinder structure, structural reliability, a fundamental easily manipulated to solve the fork breakage, and repair difficult problems; flywheel with skid safety device, thus ensuring a greater blow to the output device can not only energy, but also a larger force in the output flywheel slip through protective equipment; main lubrication points using automatic centralized lubrication, thus avoiding the lubrication due to human factors is not timely, fully and without damage to spiral to pay issues; the top materials used hydraulic top of the structure, top to contribute to large, and smooth out the top, top top of the stroke output and can be adjusted , easy to use, reliable ejection; platform rigidity, vibration, low noise, before and after through easy to use, beautiful shape and has a safety device to ensure the safety of maintenance personnel; appliances using advanced PLC control, easy to use, adjustment sensitive and reliable, and can choose to install optical protection to further ensure the safety of the operator, the tonnage instrument can also choose to display the work force the size of the fight.