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R38N 38mm Anchor Drill Self drilling anchor bolt for decayed rock , sand gravel

100 pcs
R38N 38mm Anchor Drill Self drilling anchor bolt for decayed rock , sand gravel
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Name: Rock Anchors For Boats
Type: Best Anchor For Rocks
Rocks: Grappling Anchor For Rocks
Origin: China Best Boat Anchors For Rock
Use: Rock Anchors For Utility Poles
Item No: Rock Anchors For Foundations
Drilling: How To Anchor Into Rocks
Systems: Rock Anchor Systems
China: China Self Drilling Anchor Bar
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Self drilling anchor bolt


Self Drilling Rock Bolt

Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO, API
Model Number: 25 32 32 38 51 R25N R32L R32N/1 R32N R32S/1 R32S R38N/1 R38N/2 R38N R51L/1 R51L R51N/1 R51N
Payment & Shipping Terms
Packaging Details: wooden box packing
Supply Ability: 200000 pcs
Product Description

R38N 38mm Self drilling anchor bolt for decayed rock , sand gravel



1. Introduction:


Self drilling anchor bolt combines drilling, grouting and anchoring together. It ensures the anchoring effect in complex ground conditions. It’s safe, reliable and efficient.


2. Application

This kind of product is suitable for broken rock, loose soil and conditions which are difficult to drill holes, such as fracture zones, decayed rock, gravel, sandy gravel, backfill ground. In order to have optimal result, drill bits can be used differently according to the rock conditions. 
Application for project:


Permanent support for tunneling.In slope stabilization, rock bolts and soil nails can be used to maintain and strengthen soil and rock. Used for Micro pile reinforcement. Micro pile can transmit structural load to foundation, and then limit the deformation of buildings.

3. Features:    

1. Casing free in the operation. Anchor bar is also a drill pipe which is convenient and time-saving.
2. Drilling and grouting can be done simultaneously. With good grouting spread radius and reliable anchoring quality, fractures can be filled effectively.
3. The anchor bar with standard full thread can be cut according to your requirement. The cut anchor bar can be connected by couplers. It’s suitable in narrow work space.
4. Due to the continuous R-thread and T-thread, self drilling anchor bolt has higher bonding stress.

4. Specification:  

R -thread Hollow Anchor Bar
Size Outer Dia. Inner Dia. Ultimate Load Yield Load Weight
mm mm KN KN Kg/m
R25N 25 12 200 150 2.3
R32L 32 20.5 210 160 2.9
R32N/1 32 20.5 280 230 2.9
R32N 32 18 280 280 3.5
R32S/1 32 18 360 280 3.5
R32S 32 15 360 280 4.1
R38N/1 38 22.5 500 400 4.8
R38N/2 38 21 500 400 5.6
R38N 38 19 500 400 6
R51L/1 51 39 550 450 5.6
R51L 51 36 550 450 7
R51N/1 51 34 800 630 7.7
R51N 51 33 800 630 8.5




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Contact Person : Bill, George, Michael
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