First,The basic principle of hydraulic transmission:
Hydraulic system uses the hydraulic pump to convert the mechanical energy of the prime mover into liquid pressure energy, through the change of liquid pressure energy to transfer energy, after a variety of control valves and pipeline transmission, with the help of hydraulic actuators (hydraulic cylinder or motor) to convert the liquid pressure energy into mechanical energy, so as to drive the work mechanism, to achieve linear reciprocating motion and rotary motion. The liquid is called the working medium, generally mineral oil, its role and mechanical transmission of the belt, gears, the same.
Second, the advantages
(1) small size, light weight, for example, the same power hydraulic motor weight only 10% to 20% of the motor. Therefore, the inertia force is small, when the sudden hydraulic transmission overload or stop, will not occur a large shock;
(2) can be in a given range of smooth automatic adjustment of traction speed, and can achieve stepless speed regulation, and the speed range up to 1: 2000 (generally 1: 100).
(3) easy to change direction, in the case of not changing the direction of rotation of the motor, can be more convenient to achieve the work mechanism rotation and linear reciprocating motion conversion;
(4) hydraulic pump and hydraulic motor with oil pipe connection between each other, in the space arrangement is not strictly limited;
(5) Because of the use of oil as the working medium, the relative moving surfaces of the components can be self-lubrication, small wear, long service life;
(6) Easy to operate and control, high degree of automation;
(7) easy to achieve overload protection.
(8) hydraulic components to achieve standardization, serialization, generalization, easy to design, manufacture and use.
BIGLUX always think for customer, mostly we recommend hydraulic mast because of easy operate and low maintanance. But if your budget is limited. We still have manual and electric mast to choose.