Features:
1,Designed for medium-coarse sand, weathered and strong weathered sand stone.
2,Low speed and large toque drive mechanism, strong excavation force,3 times overload coefficient.
3,Independent water injection and grouting system improves excavation soil condition applied to different ground.
4,Low ground settlement, the minimal cover depth is only 1.5 times of the pipe OD.
5,Central supported cutter,compact and lightweight, long service life, easy maintenance.
6,Screw conveyor transfer soil in large quantity and conveyable grain size.
7,2.5°steer angle,controlled by electrical system, easy operation, quickly response, digital displayed. 
8,Full face cutting, 100% opening rate.
Technical Parameters: