Slot and wedge bolt :

Slot and wedge bolt is composed by rod ,wedge,plate,nut and so on ,have good bearing capacity for roof support

  How to work :

Slot wedge rock bolt has five parts : wedge,rod,plate,spherical washer and nut .one end of high strength of rod has a cross slit ,swedge can be inserted in ,the other end has thread for hold plate ,washer , and nut . After drilling the borehole , insert swedge into slit and install other accessories , push the whole rock bolt into the end of borehole, drive external end hard so that wedge can expand cross slit ,causing large pressure between interior end and strata . The bolt can be used with cement paste or cement plaster for permanent support .

Feature

(1)       large bearing capacity for roof support

(2)       Simple structure and easy installation

(3)       When used for permanent support , should be with cement paste or cement plaster

(4)       Spherical washer provides up to 180 angle of tilt, has ‘user friendly’ rounded corners.