High Quality High Strength Friction Bolt for Mine with Factory Price

Friction bolt is the most basic part of roadway support in contemporary coal mines, it reinforced the surrounding rock of the roadway, make the surrounding rock support itself. The bolt is not only used in mine, but also used in engineering technology.

Application: Since 1912, it is the first time that Seleznev use the bolt to support in the underground roadway. It has been widely used in civil engineering(including mining engineering)

Characteristic: 1. High strength alloy strip steel is used for raw materials;

2. The simplest installation;

3. No anchoring agent;

4. Large friction force between the bolt and rock mass;

5. High shear and tensile strength;

6. Equipped with high-strength pallet, the pallet is evenly distributed;

7. The roadway height is greater than the bolt length.Quality Standards Zongxiang rock bolts (friction bolts) are manufactured to a highest standard of quality. Rigid standards of quality are achieved by exhaustive quality control, testing and inspection procedures. Detailed drawings specify materials, dimensions, and tolerances. InstallationFast, easy installation of our friction rock bolts reduces bolting costs. Rock bolts can be installed quickly, usually in less than a minute, using a jack drill, a stoper, a roof-bolting jumbo, or any other type of drill. Installation can be done in a few easy steps:

1. Drill the hole.

2. Replace the drill steel with a driver tool.

3. Slide the plate on the tube.

4. Drive the tube in with the drill / drifter.

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