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Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support

China HUNAN GOLDEN GLOBE I AND E OED CO.,LTD. certification
China HUNAN GOLDEN GLOBE I AND E OED CO.,LTD. certification
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Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support

Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support
Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support

Large Image :  Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support

Product Details:

Place of Origin: China
Brand Name: OED/OEM
Certification: ISO 9001 2008
Model Number: R25/51

Payment & Shipping Terms:

Minimum Order Quantity: 100pcs
Price: Negotiable
Packaging Details: Wooden Box
Delivery Time: 45 days
Payment Terms: L/C, , T/T
Supply Ability: 10000pcs per month
Detailed Product Description
Type: Drill Bit Certification: ISO9001:2008
Processing Type:: Casting Application: Self Drilling Anchor System
Thread: R25 Diameter: 51mm
Hardness: HRC48-HRC55 Thread Direction: Left Hand

Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support

 

Specifications of drilling bits R25/51mm

Thread:R25

Diameter:51mm

Left Hand

Hardness:HRC48-HRC55

Processing Type:Casting

 

Description:

The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc projects.

 

Advantages and Characteristics as below:

1. No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.

2. Fast drilling and installation, because drilling, installation and grouting are in a single operation.

3. Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.

4. The hollow core not only serves for flushing during drilling, but also for grouting after drilling.

5. Continuous threads ensure the bars can be cut and coupled at any point, or extended.

6. Different anchor bits are available for different ground conditions.

R thread anchor bar or called rock bolt, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.

 

Bits type:

Bit Drill for Ground Anchor R25/51mm Self Drilling Rock Anchor for Tunnel Support 0

 

Anchor bit diameter to choose:

Dia. 42 51 76 90 100 115 130 150 175 220 250 280 300 350
R25                        
R32                    
R38                  
R51                
T76                  
T30                        
T40                    
T52                
T73                    
T103                
 
Thread standard ISO 10208 / ISO 1720/ Other international standards
Thread direction Left hand / Right hand
Hardness HRA 87 ~HRA90 for TC bits, HRC 48 ~HRC 55 for all steel bits.
 

Contact Details
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