Descriptions of Hydraulic Pressure System:
Qingzhuan hydraulic pressure system absorbed Japanese technology to produce the hydraulic cylinder; absorbed European technology to produce pneumatic operating valve and pneumatic distributing valve.

Characteristics of Hydraulic Pressure System:
Qingzhuan Hydraulic Pressure System is classified into T-type Hydraulic Pressure System and F-type Hydraulic Pressure System. And they are applicable to 3.6-6.0m back discharging dump trailers.
(1) T-type Hydraulic Pressure System
Composition: A lifting amplifying mechanism consists of oil tank, lifting arm and pull rod etc.
Features:
-- Four-bar linkage mechanism: sub-frame~ the cylinder~ lifting arm; sub-frame~ pull rod~ lifting arm; the other end of lifting arm~ one end of carriage; the other end of carriage~ sub-frame.
-- CAD optimization designed for the mechanism: so the system is with high efficiency, simple structure and stable lifting capability etc.
2. F-type Hydraulic Pressure System
-- Absorbed Japanese technology;
-- Composed of oil tank, lifting arm and pull rod etc.
-- Four-bar linkage mechanism;
-- CAD optimization designed;
-- Rational stress distribution and high mechanism efficiency; Simple structure and large lifting capability.