Left handed rock bolt is also called left hand without longitudinal ribbed rebar type resin anchor rod, anchor rod with high intensity, reasonable structure, large pretightening, can automatically adjust the force direction, increase the binding force of surrounding rock, and can achieve rapid mechanized installation

Left hand rock bolt anchor in addition to the above advantages, can end anchorage, extended anchor and anchor, it is mainly used for high pressure high strength of large deformation of roadway support in mine, at the same time can also be used for railways, hydropower and other kinds of engineering of high strength, permanent roadway support.

Use method of left hand rock bolt: determine hole position of bolt according to design requirement, punch hole with drill tool, and clean rock powder in hole with pressure wind. Use the anchoring agent into the bottom of the hole, anchor to resist began mixing, (stirring time according to provisions of the model of anchoring agent), stirring and mixing machines, after reaching waiting time, stirring connectors, loaded on the anchor plate, spherical washer, friction washer, with wrench and tighten the screw as well.

Right hand rock bolt, such as bolt, also known as determination of anchoring force is one of the tools, has small volume, light weight, easy to carry, simple operation, safety, etc, are widely used in coal tunnel and transportation, national defence, and a variety of tunnel operations.

Features of right hand rock bolt: reasonable structure, full length of bolt, etc. The bearing capacity of anti-hemp bolt is higher than that of the same specification. Simple operation, low price, widely used in coal mine, railway, hydropower and other types of roadway support.

Right rotation bolt installation: determine bolt hole location according to design requirements, and use drilling machine, bolt drill or coal electric drill to punch hole, the depth is 80-100mm shorter than the length of bolt. The diameter of borehole should be 6-12mm larger than that of bolt. In addition, the other steps are consistent with the left-turn bolt.

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