R25 Rock Bolt
DUPLEX COATING ROCK BOLT

R25 rock bolt is an advanced rock bolt which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring to provide higher bonding stress than smooth steel pipe depending on continuous wave thread. It is extensive applied in all kinds of constructions, such as railway system, metro project and infrastructure development.

Specifications

R25 rock bolt

Rock bolt Size

Outer Dia. (mm)

Inner Dia. (mm) Ultimate Load (KN) Yield Load (KN) Weight (Kg/m) Thread

R25N 25 12 200 150 2.3 ISO10208

Accessories

Anchor Coupling

Coupling Size Outer Dia. (mm) Length (mm) Weight (Kg) Thread

R25N 36 150 0.66 ISO10208

Anchor Nut

Nut Size Type Key Size (mm) Length (mm) Weight (Kg)

R25N Hex Nut 41 35 0.27

R25N Domed Nut 41 39 0.30

Anchor Plate

Plate Size Type Dimensions (mm) Thickness (mm) Hole Dia. (mm) Weight (Kg)

R25N Arched Plate 150*150 8 30 1.40

Drill Bit Adapter

Drill Bit Adapter Size Drill Bit Length (mm) Weight (Kg)

R25N R32 50 0.09

Drill Bits

Drill Bits Type Size Diameter (mm)

EX R25N ø42, ø51

EXX R25N ø42, ø51

ES-F R25N ø42, ø51

ESS-F R25N ø42

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