The left-handed anchor bolt is also called the non-longitudinal-reinforced steel resin anchor bolt for mining. Compared with the right-handed anchor rod, it is heavier, The top of the bolt body is made of fine threads, the strength of the threaded section is greater than that of the rod body, and the threaded section has outstanding bending and shear resistance properties. It is a new type of coal mine roadway support bolt with high strength, reasonable structure and large pre-tightening force. It can automatically adjust the force direction, increase the binding force on the surrounding rock, and realize rapid mechanized installation.

Left-handed resin anchor bolt for mining are mainly used for large deformation roadway support in high ground pressure mines, and can also be used for roadway support in railway, hydropower and other projects, and are suitable for reinforcement and support of mine roadways, bridges, track slopes, etc. Generally, bolt holes are drilled with bolt drills or other things, and then filled with resin cylinders, then bolt drills and other things are used to stir the anchoring agent to drill the bolt holes, and then bolt drills and other things are used to install nuts.

Specific usage method:

1. Determine the anchor hole position according to the design requirements, and drill the hole with a drill.

2. Blow the stone powder in the hole with compressed air.

3. Feed the anchoring agent into the bottom of the hole, and use an resin anchor bolt for mining to resist the initial stirring (the stirring time depends on the type of anchoring agent). After the mixing is complete, remove the mixer. After the waiting time is reached, remove the stirring connector, install the anchor plate, spherical washer and conflict washer, and tighten the nut with a special wrench.