1Modular design The entire structure is designed as modular, whose parts are piled up, consists of hydraulic function unit, machinery brake unit and machinery output unit, and forms complete set with main machines easily. 2High efficiency The multi-action flat flow-matched technology is adopted to compensate automatically the loss of frictions, low sensibility to pressure and temperature, high volumetric efficiency. The rolling post and piston structure are used simultaneously to make transmission easy, less friction, higher machinery efficiency. 3High pressure and good low-speed performance Its maximum pressure is up to 40Mpa. Because of small transmission inertia and the piston auxiliary is sealed with piston loop, it has higher start efficiency, better low speed performance and minimum reliable speed (less than 0.5 r.p.m) 4Bear radial and axial loads The machinery output unit has been installed independently, the diameters of bearing and output shaft are much bigger and, the radial balance in hydraulic function unit is a pure torque output so that the motor can bear larger radial and axial forces. 5With machinery brake The modular structure has been used to pile up the machinery brake units easily and to fulfill the out put shaft being braked for safety and stopping directly. ISO9001:2000 ISO14001:2004