The sludge residence time in the screw press and thus the filtration time can be adjusted to individual requirements by adjusting the rotational speed of the screw shaft.
污泥停留在螺旋压力机的时间，（即）过滤的时间可以根据实际情况通过改变螺杆轴转的速调整。
2
Traction roll is made with fire resistant rubber. tractive motor USES electromagnetism adjustingspeed, freely adjustingspeed continue, reel motor use single shaft, momental motor drives it.