WH45T models hydraulic transmissions are made up of hydraulic torque converter and power shift transmissions with two forward and one reverse speed, widely used for forklifts, tow tractors, and other industrial vehicles. The hydraulic torque converter is a single-stage, two-phase and three-impeller torque converter, the transmission is flange output, adopts mechanical shifting or electromagnetic valve shifting, the electromagnetic valve shifting has a bumper valve, has the characteristics of easy operation, smooth running, etc.