Slit Wedge Tubing Bolt
- -The raw material is made of high-strength alloy steel strip.
- -High yield strength and high tensile strength.
- -It has high shear and tensile strength.
- -No anchoring agent is required.
- -Simple installation procedure,save cost
Slit Wedge Tubing Bolt Introduction
Slit Wedge Tubing Bolt as one of the main ground support bolts are considered the simplest and most cost-effective form which has been used by the metalliferous mining and tunnel industry for decades.Commonly used in underground installations that work primarily through friction,providing immediate reinforcement.They consist of a longitudinally grooved steel tube,with one end tapered to facilitate easy insertion into a borehole.
Pull test is a very important testing for the performance of Friction Bolt. It can tell the welding quality and at the same time to know the ultimate broken strength. The testing will be carried out several times in one batch of products to be sure a good and consistent quality of welding all through the production.
Slit Wedge Tubing Bolt Technical advantage
High-strength tray beraing capacity,the rod body than retaining ring pull off the bearing force than pole.
Slit Wedge Tubing Bolt Mechanical Properties
| Technical Data | TRFB33 | TRFB39 | TRFB42 | TRFB47 | |
| Drill hole diameter (mm) | 30-32 | 35-38 | 38-40 | 43-45.5 | |
| Min.Yield strength (kN) | 80 | 90 | 100 | 120 | 135 |
| Min.Tensile strength (kN) | 100 | 120 | 132 | 165 | 180 |
| Typ.Tensile strength (kN) | 120 | 130 | 150 | 180 | 200 |
| Elongation (A%) | ≥20 | ≥20 | ≥20 | ≥20 | |
| Typ.Anchorage (ton/m) | 4-6 | 4-7 | 5-8 | 6-10 | |
| Bearing plate (mm) | 150x150x4 | 150x150x4 | 150x150x4.5 | 150x150x4 200x200x4 | |
Slit Wedge Tubing Bolt Method of application
1.According to the requirement of design,drill a hole with punching
2.Use wind pressure to blast the rock powder of the hole
3.Rod anchor plate fitted with a shock will bolt into the hole drill
Slit Wedge Tubing Bolt Accessories
Bearing plate,Driver, Test Pull collar.
Slit Wedge Tubing Bolt Length & Package
Length:450-3000mm as specified
Package:100pcs — 300pcs each bundle as specified
