R38 Rock Bolts
r38 self drilling rock bolt

R38 rock bolts eliminate the requirement for a cased borehole. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil. As an efficient anchoring method, the rock bolts is also widely applied to pre-support project, radial support project, slope stabilization and other rock supporting work.

Specifications

R38 rock bolts

Rock bolt Size Outer Dia. (mm) Inner Dia. (mm) Ultimate Load (KN) Yield Load (KN) Weight (Kg/m) Thread

R38N/1 38 23 500 400 4.8 ISO10208

R38N/2 38 21 500 400 5.5 ISO10208

R38N 38 19 500 400 6.0 ISO10208

R38S/1 38 18 500 430 6.2 ISO10208

Accessories

Anchor Coupling

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

R38 51 180 1.35 ISO10208

R38 51 200 1.5 ISO10208

R38 51 220 1.70 ISO10208

Anchor Nut

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

R38 Hex Nut 50 50 0.39

R38 Hex Nut 50 60 0.47

R38 Domed Nut 52 60 0.70

Anchor Plate

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

R38 Domed Plate 200*200 12 41 3.60

R38 Domed Plate 150*150 8 41 1.38

R38 Plat Plate 140*140 35 41 5.00

R38 Plat Plate 200*200 12 41 3.60

Drill Bit Adapter

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

R38 51 68 0.41

Centralizer

Centralizer Size Outer Dia. (mm) Length (mm) Weight (Kg)

R38 78 30 0.30

Drill Bits

Drill Bits Type Size Diameter (mm)

EX R38 ø76, ø90, ø100

EXX R38 ø76, ø90

ES-F R38 ø76, ø90

ESS-F R38 ø90, ø115

Clay Bit R38 ø90, ø100, ø110, ø130, ø150

EY R38 ø76

EYY R38 ø76, ø90

XX R38 ø110, ø130

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