Friction bolt

Quick Detail

Package & Delivery Lead Time

Detailed Description

Friction bolt consists of only two parts, a tube and matching domed bearing plate. The high strength steel tube is slotted along its length. One end is tapered for easy insertion into a drill hole and the other had a welded ring flange to hold the plate. With the bearing plate in place, the tube is driven into a slightly smaller hole, using the same standard percussion drill that made the hole. As the tube of the rock bolt slides into place, the full length of the slot narrows, causing radial pressure to be exerted against the rock over its full contact length. Structure: 1, the tube is made of high-tensile alloy steel plate; 2, easy to install; 3, no need resins and cement cartridges; 4, big friction between bolt and rock; 5, high yield and tensile strength; 6, high-strength face plate; 7,the height of tunnel must be larger than the bolt length. Model Specs（interior diameter * thickness） Ultimate tensile strength （KN） Specs of plate Length（mm） Plate specs Working load工作荷载, 有效荷载 GF33 33*2.5 100 120*120*5.0 ≥100 1200-2200 33*3.0 120 120*120*6.0 ≥120 1200-2200 GF40 40*2.5 130 150*150*5.0 ≥150 1200-2400 40*3.0 150 150*150*6.0 ≥180 1200-2400 GF43 43*2.5 140 150*150*5.0 ≥150 1400-3000 43*3.0 160 150*150*6.0 ≥180 1400-3000 GF46 46*2.5 150 150*150*6.0 ≥180 1600-3200 46*3.0 170 150*150*6.0 ≥180 1600-3200

Basic Company Information

Luoyang Gongyan Technology Co.,Ltd

Company Advantage

Detail Company Introduction

Factory Information

Trade Information