The role of the environmentally-friendly hydraulic system is to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely power components, actuators, control components, auxiliary components (accessories) and hydraulic oil. Environmentally friendly hydraulic systems can be divided into two categories: hydraulic drive systems and hydraulic control systems. The hydraulic transmission system mainly transfers power and motion. The hydraulic control system must make the output of the hydraulic system meet specific performance requirements (especially dynamic performance). Generally speaking, the environmentally-friendly hydraulic system mainly refers to the hydraulic transmission system.
    Advantages of environmentally friendly hydraulic system
    1. Small size and light weight;
    2. High rigidity, high precision and fast response;
    3. Large driving force, suitable for heavy-duty direct drive;
    4. Wide speed range and various speed control modes;
    5. Self-lubricating, self-cooling and long life;
    6, easy to achieve security protection.

    The quality of an environmentally-friendly hydraulic system depends not only on the rationality of the system design and the performance of the system components, but also because of the pollution protection and treatment of the system. The system pollution directly affects the reliability of the hydraulic system and the service life of the components. According to statistics, about 70% of domestic and foreign hydraulic system failures are caused by pollution.