此类动力单元专门设计应用于混凝土搅拌车,配有压力继电器、压力表、电磁换向阀,手动泵可实现应急操作。具有操纵方便、性能稳定、使用安全等特点。 The unit is specially designed for concrete mixer with the characteristc of convenient operation, steady performance and safety,equipped with pressure relay controller, manometer,solenoid directional valve and the manual pump for emergency control.