The pre-tightening nut can make the tray press the roadway surface under the action of torque, provide the pre-tightening force for the frp rebar, and extend the pre-tightening force to the coal rock body around the frp rebar, so as to improve the stress state of surrounding rock, restrain the loose separation layer of surrounding rock, and realize the active and timely support of frp rebar.

The loose deformation of the coal body causes the load to act on the tray, which transfers the load to the frp rebar body and increases the working resistance of the frp rebar.

To a certain extent, the tray can restrain the coal body crushing and expansion caused by mining, and make loose and broken pieces compacted with each other, thus restraining the further expansion of loose coal body collapse.

Since the establishment of the company has been committed to the support industry, the company's existing support products series: anchor rod series, anchor rope series, support series three series.The bolt series includes left hand rock bolt, friction bolt, frp rebar etc. The bracket series includes two types of steel arch supports, such as miner's steel bracket and u-shaped steel bracket. The company has its own processing plant which can be customized according to customer's drawings within the business scope.

If you are interested in the product, please contact us or leave a message.

Tel:+86-182 3676 6038 (WeChat)

E-mail: zxminesupport@zxsteelgroup.com