T Thread Self Drilling Anchor Bolt

Description:
T thread self drilling rock bolt adopts groove-thread anchor bar, it can bond hollow bar with grouting materials effectively. It can be widely used in different projects, such as: mining, tunneling, hydroelectric station, civil construction and so on.

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Introduction

As an efficient anchoring method, self drilling rock bolt is used in complicated, loose and broken geological condition. It’s widely applied to pre-support project, radial support project, slope stabilization, foundation support project, roadway support project, soil nail wall, back pull anchor rod retaining wall and other rock supporting work.

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:
Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micropiles and tunneling, it’s also widely used in the railway system, metro project, etc. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installed compared to the traditional method.

Features and advantages:
1. It features a hollow bore for flushing, or simultaneous drilling and grouting.
2. Reliable, Efficient and Convenient.
3. Choice of drill bits for different ground conditions.
4. It can be elongated by using couplers.
5. Suitable for anchoring in broken geological condition and narrow space, which has achieved perfect effect.
  • T30
  • T40
  • T52
  • T73
  • T76
  • T103
  • T111
  • T127
  • T130
  • T150
  • T200
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SST30/16 30 16 220 180 2.90
SST30/14 30 14 260 220 3.35
SST30/11 30 11 320 260 3.60
SET30/14 30 14 320 260 3.35
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST30 38 105 0.39 With sealing structure
SET30 38 105 0.45 Without sealing structure
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HRC)
SST30 46 35 0.31 25-30
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HBS)
SST30 46 35 0.33 290-340
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST30 150×150 25 40 4.20
200×200 8 36 2.43
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET30 70 35 0.20
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST30/51 51 0.35
SST30/76 76 0.80
EXX   Softer sedimentary rocks such as marls, mudstones, siltstone
SST30/51 51 0.40
SST30/76 76 1.20
EXX(Venturi) 
SST30/63 63 0.87
Clay Bit   Clay, soft soil, marls, loose sand or gravel
SST30/76 76 0.60
SST30/95 95 0.67
ES-F   Gravel, soft rock
SST30/51 51 0.38
ESS-F   Weathered rock, stone walls, rubble
SST30/51 51 0.46
EYY   Competent ground, strong rock
SST30/76 76 0.74
Drill Bit Adapter
Size Anchor Bar Thread Drill Bit Thread Length
(mm)
Weight
(Kg/pc)
SST30/T40 T30 T40 50 0.19
SST30/R51 T30 R51 68 0.66
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SST40/20 40 20 539 430 6.20
SST40/16 40 16 660 525 7.20
SET40/22 40 22 539 430 5.70
SET40/18 40 18 660 525 6.80
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST40 54 140 1.09 With sealing structure
57 140 1.37
SET40 54 140 1.11 Without sealing structure
57 140 1.39
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HRC)
SST40 65 50 0.92 25-30
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HBS)
SST40 65 50 0.86 290-340
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST40 115×115 20 56 1.60
125×125 24 56 2.40
200×200 12 56 3.28
200×200 30 56 8.50
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET40 88 40 0.36
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST40/100 100 1.36
SST40/115 115 1.88
EX(Venturi)
SST40/76 76 1.00
SST40/90 90 1.20
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST40/76 76 0.88
SST40/90 90 2.16
SST40/100 100 2.22
SST40/115 115 2.65
SST40/130 130 4.42
SST40/150 150 6.60
EXX(Venturi)
SST40/76 76 1.30
SST40/90 90 2.02
SST40/100 100 2.30
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST40/90 90 1.00
SST40/100 100 1.10
SST40/110 110 1.10
SST40/115 115 1.10
SST40/150 150 2.40
ES-F Gravel, soft rock
SST40/76 76 0.71
SST40/90 90 1.16
ESS-F Weathered rock, stone walls, rubble
SST40/64 64 0.95
SST40/76 76 1.28
SST40/90 90 2.35
SST40/100 100 2.75
Drill Bit Adapter
Size Anchor Bar Thread Drill Bit Thread Length
(mm)
Weight
(Kg/pc)
SST40/R51 T40 R51 68 0.34
SST40/T52 T40 T52 68 0.30
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SST52/24 52 24 929 730 10.20
SET52/26 52 26 929 730 9.70
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST52 70 160 2.31 With sealing structure
SET52 70 160 2.46 Without sealing structure
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HRC)
SST52 80 70 1.94 25-30
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HBS)
SST52 80 70 2.30 290-340
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST52 145×145 27 65 3.60
200×200 30 65 8.59
220×220 35 65 13.10
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET52 112 35 0.39
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST52/115 115 2.10
SST52/130 130 3.90
SST52/150 150 4.00
SST52/175 175 6.00
EX
SST52/175 175 5.80
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST52/90 90 2.00
SST52/100 100 2.30
SST52/115 115 3.37
SST52/130 130 4.70
SST52/150 150 6.59
EXX(Venturi)
SST52/100 100 2.55
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST52/130 130 2.30
SST52/150 150 2.53
SST52/175 175 2.50
SST52/200 200 3.50
ES-F Gravel, soft rock
SST52/115 115 1.87
ESS-F Weathered rock, stone walls, rubble
SST52/76 76 1.52
SST52/100 100 2.60
SST52/115 115 3.72
SST52/130 130 4.51
SST52/150 150 6.50
Drill Bit Adapter
Size Anchor Bar Thread Drill Bit Thread Length
(mm)
Weight
(Kg/pc)
SST52/T73 T52 T73 80 1.22
SST52/T76 T52 T76 65 1.07
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET73/53 73 53 1160 970 13.20
SET73/45 73 45 1582 1270 17.80
SET73/40 73 40 1865 1430 21.20
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST73 89 235 3.82 With sealing structure
95 245 5.70
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
SET73 95 70 1.90
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST73 175×175 34 80 6.85
250×250 40 80 18.00
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET73 130 65 1.08
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST73/130 130 4.00
SST73/175 175 6.80
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST73/130 130 4.00
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST73/150 150 4.00
SST73/200 200 5.60
SST73/250 250 6.75
SST73/280 280 7.60
SST73/175 175 5.20
ESS-F Weathered rock, stone walls, rubble
SST73/130 130 4.70
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET76/51 76 51 1600 1200 16.50
SET76/45 76 45 1900 1500 19.70
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST76 95 200 4.26 With sealing structure
95 220 4.80
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
Hardness
(HRC)
SST76 100 75 2.40 25-30
100 80 2.67
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST76 250×250 60 80 27.00
250×250 40 80 18.00
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET76 130 45 0.86
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST76/115 115 3.08
SST76/130 130 4.00
SST76/150 150 5.90
SST76/200 200 6.60
SST76/175 175 6.88
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST76/130 130 4.00
SST76/150 150 6.56
SST76/175 175 7.60
SST76/200 200 9.70
EXX(Venturi)
SST76/140 140 7.16
SST76/150 150 6.07
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST76/130 130 3.58
SST76/150 150 3.78
SST76/175 175 4.92
SST76/200 200 5.30
SST76/300 300 7.90
ES-F Gravel, soft rock
SST76/130 130 4.87
ESS-F Weathered rock, stone walls, rubble
SST76/120 120 4.15
SST76/130 130 4.65
SST76/150 150 6.10
SST76/200 200 15.00
EY Chalk, gravel
SST76/130 130 3.55
XX Sand, clay, fills, gravel
SST76/130 130 3.33
SST76/145 145 3.57
SST76/175 175 5.00
SST76/200 200 4.86
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET103/78 103 78 2270 1800 23.50
SET103/51 103 51 3660 2670 44.60
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST103/78 125 255 8.02 With sealing structure
SST103/51 133 290 13.00
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
SET103/78 125 80 3.42
SET103/51 125 130 5.60
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST103/78 240×240 48 110 18.00
SST103/78 300×300 50 110 32.60
SST103/51 285×280 67 110 37.60
SST103/51 330×330 60 110 46.50
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET103 165 80 2.94
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST103/175 175 9.60
SST103/200 200 8.30
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST103/175 175 11.00
SST103/200 200 12.50
SST103/250 250 20.00
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST103/220 220 12.10
SST103/280 280 14.20
ESS-F Weathered rock, stone walls, rubble
SST103/175 175 11.00
SST103/200 200 12.72
SST103/220 220 24.15
SST103/230 230 23.00
SST103/300 300 49.00
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET111/82 111 82 2640 200 25.00
SET111/75 111 75 3650 2750 34.50
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST111 140 250 12.60 With sealing structure
Hex Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
SET111 150 120 10.20
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST111/82 300×300 80 130 47.80
SST111/75 350×350 90 130 76.80
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET111 170 50 1.80
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST111/220 220 10.70
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST111/220 220 9.00
ESS-F Weathered rock, stone walls, rubble
SST111/170 170 10.10
SST111/200 200 12.10
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET127/105 127 105 2400 1810 30.50
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST127 146 255 8.50 With sealing structure
Spherical Collar Nut
Size Key Size
(mm)
Length
(mm)
Weight
(Kg/pc)
SET127 140 140 7.50
Flat Plate
Size Dimensions
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg/pc)
SST127 250×250 50 140 18.40
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET127 200 80 3.50
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
EX Sand, fills, gravel
SST127/200 200 12.50
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST127/220 220 10.30
ESS-F Weathered rock, stone walls, rubble
SST127/200 200 17.10
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET130/60 130 60 7940 5250 78.00
Coupler
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
Note
SST130 168 300 19.50 With sealing structure
Spherical Collar Nut
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET130 175 175 17.90
Centralizer
Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg/pc)
SET130 220 80 3.60
Drill Bit
Size Outer Dia.
(mm)
Weight
(Kg/pc)
Application Range (Advice)
ESS-F Weathered rock, stone walls, rubble
SST130/220 220 20.00
SST130/300 300 44.30
SST130/230 230 24.00
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET150/66 150 66 8400 5600 108.00
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SET200/93 200 93 14230 9500 183.00

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