I、The main functions of the device are described as follows：

Curb quality：

①    Device for maximum load capacity≧3000kg，Equipment weight≦950kg

② Provisional lift height of tailboard ：1340mm；

Equipment power:

① The equipment adopts the electric drive synchronous hydraulic system as the main power source, and the time from the ground operation to the floor plane of the carriage is ≦15 seconds.

Used DC24V dc power;

② The electro-hydraulic system is designed as DC DC12V/24V;

Motor 2000w;

It can directly use the vehicle power;

③ The hydraulic system of the equipment is closed circuit（闭式油路 闭式回路）.

Both cylinders are controlled by the hydraulic system to work synchronously，without a rigid structure.

Synchronous working stroke difference of the left and right cylinders can be controlled at about 15mm;

The error will be automatically corrected for each working cycle during use；

Hydraulic principle is shown in FIG. 6；

II、General technical parameters