Environmental clean: using screw gear transmission, discard the traditional hydraulic design, working environment, environmental clean.
洁净环保：采用丝杆齿轮传动，抛弃传统液压设计，工作环境洁净环保。
2
The utility model can be synchronously driven with a screw conveyor or can be independently driven by a fixed speed or variable speed transmission device.
可与螺旋输送机一起同步传动或者用固定速度或变速的传动装置单独传动。
3
The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.