20 – 60 ton Excavator

We provide both positive flow control (PFC) and negative flow control (NFC) system for middle and large excavator(20~60ton) application.
Utilizing Hengli’s pump and mobile valve, the superior controllability and the fuel saving can be achieved.

The NFC system uses a measuring orifice in the bypass oil flow to generate a pressure signal, which influences the swash angle of the regulating pump.
In PFC systems the control signal is used to control both valve and pump. A complex evaluation control consisting of valve cascades in combination with software determines a certain swash angle for the pump.

Hengli has rich experience in both control systems, can provide you full qualified hydraulic solutions to save your time.

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20 ~60 ton Excavator

We Offer You

Mobile valve features

Pump features

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  • 2.6 – 15 ton Excavator

    We are dedicated to provide the hydraulic system solution and hydraulic products with high quality and high efficiency.


    We care about you

    We provide valuable service to all parts of the cooperation with customers, pre-sales and after-sales service request, please kindly email to us at: hengli@henglihydraulic.com