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Friction rock bolt

Payment Terms: T/T
Place of Origin: Henan

Company Profile

Location: Luoyang, Henan, China (Mainland)
Business Type: Manufacturer, Distributor/Wholesaler

Product Detail

Model No.: GF33-46
Means of Transport: Ocean
Structure: Others
Standard or Nonstandard: Standard
Function: Others
Material: Stainless Steel
Brand Name: Gongyan
easy to install: high yield and tensile strength
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Product 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, high-strength face plate;
3, no need resins and cement cartridges;
4, big friction between bolt and rock; 
Features:
1, easy to install;
2, high yield and tensile strength;
3,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
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
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