R Thread Self Drilling Anchor Bolt

Description:
Self drilling anchor bolt adopts wave-thread hollow bar, which has great anchoring effect and can be cut according to demands. Sinorock also produces large-diameter self drilling anchor bar by adopting advanced equipment and technology.

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Introduction

Self drilling anchor bolt is composed by hollow anchor bolt, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request.

Functions:
Self drilling anchor system is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring.

Conditions:
• Tunneling
• Mining
• Slope Stabilization
• Foundation Support

Features and advantages:
1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
  • R25
  • R32
  • R38
  • R51
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SER25N 25 200 150 2.35
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR25 36 150 0.66 With sealing structure
SER25 36 150 0.68 Without sealing structure
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR25 41 30 0.20 Heat treatment
SER25 41 35 0.23 Without heat treatment
Domed Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SER25 41 40.5 0.31 Without heat treatment
Domed Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER25 150×150 8 30 1.40
150×150 5 28 0.85
200×200 10 32 3.20
Drill Bit
Size Outer Dia.
(mm)
Application Range (Advice)
EX Sand, fills, gravel
SSR25/42 42
SSR25/51 51
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SSR25/42 42
SSR25/51 51
ES-F Gravel, soft rock
SSR25/42 42
SSR25/51 57.5
ESS-F Weathered rock, stone walls, rubble
SSR25/42 42
SSR25/51 51
EY Competent ground, strong rock
SSR25/51 51
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SSR32L 32 210 160 2.83
SSR32N 32 280 230 3.50
SSR32S 32 360 280 4.00
SER32L 32 210 160 2.60
SER32N 32 280 230 2.95
SER32S 32 360 280 3.50
SER32S1 32 405 320 4.00
SCR32L1 32 250 190 2.60
SCR32N 32 280 230 2.83
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR32 42 145 0.79 With sealing structure
42 160 0.86
42 190 1.00
SER32 42 145 0.77 Without sealing structure
42 160 0.84
42 190 1.00
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR32 46 45 0.37 Heat treatment
46 55 0.46
SER32 46 45 0.37 Without heat treatment
Domed Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR32 46 45 0.38 Heat treatment
SER32 46 45 0.38 Without heat treatment
Domed Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER32 150×150 8 35 1.30
150×150 10 35 1.70
175×175 8 35 1.90
200×200 8 35 2.60
200×200 10 34 2.94
200×200 12 35 3.52
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER32 95×95 25 35 1.60
120×120 30 35 3.20
150×150 8 35 1.30
200×200 10 35 3.06
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SER32 72 30 0.27
Drill Bit
Size Outer Dia.
(mm)
Application Range (Advice)
EX Sand, fills, gravel
SSR32/42 42
SSR32/51 51
SSR32/76 76
EX(Venturi)
SSR32/64 64
SSR32/76 76
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SSR32/42 42
SSR32/51 51
SSR32/64 64
SSR32/76 76
EXX(Venturi)
SSR32/76 76
Clay Bit Clay, soft soil, marls, loose sand or gravel
SSR32/76 76
SSR32/90 90
SSR32/100 100
SSR32/110 110
ES-F Gravel, soft rock
SSR32/42 42
SSR32/51 51
SSR32/64 64
SSR32/76 76
ESS-F Weathered rock, stone walls, rubble
SSR32/42 42
SSR32/51 51
SSR32/64 64
SSR32/76 76
EYY Competent ground, strong rock
SSR32/51 51
SSR32/76 76
EY Chalk, gravel
SSR32/51 51
SSR32/76 76
EC Chalks, marls, fills, competent ground
SSR32/51 51
ECC Chalks, marls, fills, competent ground
SSR32/51 51
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SSR38N 38 500 400 5.50
SER38N 38 500 400 4.95
SER38S 38 550 450 5.90
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR38 51 180 1.33 With sealing structure
51 200 1.50
51 220 1.67
SER38 51 180 1.38 Without sealing structure
51 200 1.55
51 220 1.68
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR38 50 60 0.47 Heat treatment
50 70 0.55
SER38 50 60 0.47 Without heat treatment
Domed Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR38 52 60 0.61 Heat treatment
SER38 52 60 0.61 Without heat treatment
Domed Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER38 150×150 8 41 1.38
200×200 12 41 3.60
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER38 140×140 35 41 5.00
150×150 25 41 4.10
200×200 12 41 3.67
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SER38 78 30 0.28
Drill Bit
Size Outer Dia.
(mm)
Application Range (Advice)
EX Sand, fills, gravel
SSR38/76 76
SSR38/90 90
SSR38/100 100
EX(Venturi)
SSR38/76 76
SSR38/90 90
EXX   Softer sedimentary rocks such as marls, mudstones, siltstone
SSR38/76 76
SSR38/90 90
SSR38/100 100
SSR38/115 115
SSR38/130 130
EXX(Venturi) 
SSR38/56 56
SSR38/76 76
SSR38/90 90
Clay Bit   Clay, soft soil, marls, loose sand or gravel
SSR38/90 90
SSR38/100 100
SSR38/110 110
SSR38/130 130
SSR38/150 150
ES-F   Gravel, soft rock
SSR38/76 76
SSR38/90 90
SSR38/115 115
ESS-F   Weathered rock, stone walls, rubble
SSR38/76 76
SSR38/90 90
SSR38/115 115
EYY   Competent ground, strong rock
SSR38/76 76
SSR38/90 90
EY   Competent ground, strong rock
SSR38/76 76
SSR38/90 90
EC   Chalks, marls, fills, competent ground
SSR38/76 76
ECC   Chalks, marls, fills, competent ground
SSR38/76 76
XX   Sand, clay, fills, gravel
SSR38/110 110
SSR38/130 130
SSR38/150 150
ESS-D Weathered rock, stone walls, rubble
SSR38/100 100
SSR38/115 115
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SSR51L 51 580 450 6.75
SSR51N 51 800 630 9.00
SER51L 51 550 450 6.20
SER51L1 51 660 540 6.75
SER51N 51 800 630 8.20
SCR51S 51 925 740 9.25
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR51 63 200 1.85 With sealing structure
63 220 2.00
SER51 63 200 1.84 Without sealing structure
63 220 2.03
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR51 75 70 1.53 Heat treatment
75 80 1.84
SER51 75 70 1.53 Without heat treatment
Domed Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SSR51 75 70 1.60 Heat treatment
75 80 1.92
SER51 75 70 1.60 Without heat treatment
Domed Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER51 200×200 15 55 4.70
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SER51 150×150 40 56 6.20
180×180 45 56 10.50
200×200 30 60 8.72
250×250 40 60 18.90
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SER51 91 30 0.30
Drill Bit
Size Outer Dia.
(mm)
Application Range (Advice)
EX Sand, fills, gravel
SSR51/90 90
SSR51/100 100
SSR51/110 110
SSR51/115 115
SSR51/130 130
SSR51/150 150
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SSR51/76 76
SSR51/90 90
SSR51/100 100
SSR51/110 110
SSR51/115 115
SSR51/130 130
SSR51/150 150
EXX(Venturi)
SSR51/115 115
SSR51/140 140
Clay Bit Clay, soft soil, marls, loose sand or gravel
SSR51/76 76
SSR51/90 90
SSR51/115 115
SSR51/130 130
SSR51/150 150
SSR51/175 175
ES-F Gravel, soft rock
SSR51/76 76
SSR51/100 100
SSR51/115 115
SSR51/130 130
ESS-F Weathered rock, stone walls, rubble
SSR51/76 76
SSR51/100 100
SSR51/110 110
SSR51/115 115
SSR51/130 130
SSR51/150 150
EY Chalk, gravel
SSR51/76 76
EC Chalks, marls, fills, competent ground
SSR51/115 115
XX Sand, clay, fills, gravel
SSR51/130 130
SSR51/150 150
SSR51/170 170
SSR51/200 200
ES-D Gravel, soft rock
SSR51/115 115
ESS-D Weathered rock, stone walls, rubble
SSR51/115 115

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