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T thread self drilling hollow rock 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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Phone86-379-65287220
Fax86-379-64386676
E-mailsinorock@sinorockco.com
AddressNo.1703, Building 3, No. 1 Fenghua Road,High-tech,District , Luoyang , China (Henan)Pilot Free Trade Zone, Henan Province, P.R. China.

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 rock bolt 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 rock 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.

Cases:

self drilling rock bolt application-foundation supportself drilling rock bolt application-foundation support

self drilling hollow rock bolt application-slope stabilizationself drilling hollow rock bolt application-slope stabilization

self drilling hollow rock bolt application-tunnel pre-supportself drilling hollow rock bolt application-tunnel pre-support

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.

Construction Process:

  • T30
  • T40
  • T52
  • T73
  • T76
  • T103
  • T111
  • T127
  • T130
  • T150
  • T200
Technical Data:
T fully threaded hollow bars
    Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SST30L 30 220 180 2.90
SST30N 30 260 220 3.35
SST30S 30 320 260 3.60
SET30S 30 320 260 3.35
T threaded coupler
    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
T threaded coupler
    Hex Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST30 46 35 0.29 Heat treatment
SET30 46 35 0.31 Without heat treatment
Spherical Collar Nut
    Spherical Collar Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST30 46 35 0.33 Heat treatment
SET30 46 35 0.33 Without heat treatment
Flat Plate
    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
    Centralizer
Size Outer Dia.
(mm)		 Length
(mm)		 Weight
(Kg/pc)
SET30 70 35 0.20
 hardened-cross-cut-drill-bit
 tc-cross-cut-drill-bit
    Drill Bits
Size Outer Dia.
(mm)		 Application Range (Advice)
EX Sand, fills, gravel
SST30/51 51
SST30/76 76
EXX　　 Softer sedimentary rocks such as marls, mudstones, siltstone
SST30/51 51
SST30/76 76
EXX(Venturi)　
SST30/63 63
Clay Bit　　 Clay, soft soil, marls, loose sand or gravel
SST30/76 76
SST30/95 95
ES-F　　 Gravel, soft rock
SST30/51 51
ESS-F　　 Weathered rock, stone walls, rubble
SST30/51 51
EYY　　 Competent ground, strong rock
SST30/76 76
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SST40N 40 539 430 6.20
SST40S 40 660 525 7.20
SET40N 40 539 430 5.70
SET40S 40 660 525 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)		 Note
SST40 65 50 0.92 Heat treatment
SET40 65 50 0.92 Without heat treatment
Spherical Collar Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST40 65 50 0.86 Heat treatment
SET40 65 50 0.86 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST40/100 100
SST40/115 115
EX(Venturi）
SST40/76 76
SST40/90 90
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST40/76 76
SST40/90 90
SST40/100 100
SST40/115 115
SST40/130 130
SST40/150 150
EXX(Venturi)
SST40/76 76
SST40/90 90
SST40/100 100
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST40/90 90
SST40/100 100
SST40/110 110
SST40/115 115
SST40/150 150
ES-F Gravel, soft rock
SST40/76 76
SST40/90 90
ESS-F Weathered rock, stone walls, rubble
SST40/64 64
SST40/76 76
SST40/90 90
SST40/100 100
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SST52N 52 929 730 10.20
SET52N 52 929 730 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)		 Note
SST52 80 70 1.74 Heat treatment
SET52 80 70 1.74 Without heat treatment
Spherical Collar Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST52 80 70 2.30 Heat treatment
SET52 80 70 2.30 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST52/115 115
SST52/130 130
SST52/150 150
SST52/175 175
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST52/90 90
SST52/100 100
SST52/115 115
SST52/130 130
SST52/150 150
EXX(Venturi)
SST52/100 100
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST52/130 130
SST52/150 150
SST52/175 175
SST52/200 200
ES-F Gravel, soft rock
SST52/115 115
ESS-F Weathered rock, stone walls, rubble
SST52/76 76
SST52/100 100
SST52/115 115
SST52/130 130
SST52/150 150
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET73L 73 1160 970 13.20
SET73N 73 1585 1270 17.80
SET73S 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)		 Note
SET73 95 70 1.90 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST73/130 130
SST73/175 175
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST73/130 130
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST73/150 150
SST73/200 200
SST73/250 250
SST73/280 280
SST73/175 175
ESS-F Weathered rock, stone walls, rubble
SST73/130 130
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET76N 76 1600 1200 16.50
SET76S 76 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)		 Note
SST76 100 75 2.40 Heat treatment
100 80 2.67
SET76 100 80 2.67 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST76/115 115
SST76/130 130
SST76/150 150
SST76/200 200
SST76/175 175
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST76/130 130
SST76/150 150
SST76/175 175
SST76/200 200
EXX(Venturi)
SST76/140 140
SST76/150 150
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST76/130 130
SST76/150 150
SST76/175 175
SST76/200 200
SST76/300 300
ES-F Gravel, soft rock
SST76/130 130
ESS-F Weathered rock, stone walls, rubble
SST76/120 120
SST76/130 130
SST76/150 150
SST76/200 200
EY Chalk, gravel
SST76/130 130
XX Sand, clay, fills, gravel
SST76/130 130
SST76/145 145
SST76/175 175
SST76/200 200
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET103N 103 2270 1800 23.50
SET103S 103 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)		 Note
SET103/78 125 80 3.42 Without heat treatment
SET103/51 125 130 5.60 Without heat treatment
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
SST103/51 285×285 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 2.50
Drill Bit
Size Outer Dia.
(mm)		 Application Range (Advice)
EX Sand, fills, gravel
SST103/175 175
SST103/200 200
EXX Softer sedimentary rocks such as marls, mudstones, siltstone
SST103/175 175
SST103/200 200
SST103/250 250
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST103/220 220
SST103/280 280
ESS-F Weathered rock, stone walls, rubble
SST103/175 175
SST103/200 200
SST103/220 220
SST103/230 230
SST103/300 300
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET111L 111 2640 2000 25.00
SET111N 111 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)		 Note
SET111 150 120 10.20 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST111/220 220
EXX Clay, soft soil, marls, loose sand or gravel
SST111/220 220
ESS-F Weathered rock, stone walls, rubble
SST111/170 170
SST111/200 200
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET127L 127 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)		 Note
SET127 140 140 7.50 Without heat treatment
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)		 Application Range (Advice)
EX Sand, fills, gravel
SST127/200 200
Clay Bit Clay, soft soil, marls, loose sand or gravel
SST127/220 220
ESS-F Weathered rock, stone walls, rubble
SST127/200 200
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET130S 130 7940 5250 78.00
SET130N 130 6340 4200 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 Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SET130 175 175 17.90 Without heat treatment
Flat Plate
Size Dimensions
(mm)		 Thickness
(mm)		 Hole Dia.
(mm)		 Weight
(Kg/pc)
SST130 350×350 100 145 83.00
Centralizer
Size Outer Dia.
(mm)		 Length
(mm)		 Weight
(Kg/pc)
SET130 220 80 3.60
Drill Bit
Size Outer Dia.
(mm)		 Application Range (Advice)
ESS-F Weathered rock, stone walls, rubble
SST130/220 220
SST130/300 300
SST130/230 230
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET150S 150 8400 5600 108.00
Coupler
Size Outer Dia.
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST150 194 300 32.00 With sealing structure
Spherical Collar Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SET150 180 180 15.62 Without heat treatment
Flat Plate
Size Dimensions
(mm)		 Thickness
(mm)		 Hole Dia.
(mm)		 Weight
(Kg/pc)
SST150 400×400 110 165 119.00
Drill Bit
Size Outer Dia.
(mm)		 Application Range (Advice)
ESS-F Weathered rock, stone walls, rubble
SST150/300 300
Technical Data:
Hollow Anchor Bar
Size Outer Dia.
(mm)		 Ultimate Load
(kN)		 Yield Load
(kN)		 Weight
(Kg/m)
SET200S 200 14230 9500 183.00
Coupler
Size Outer Dia.
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SST200 273 400 90.00 With sealing structure
Spherical Collar Nut
Size Key Size
(mm)		 Length
(mm)		 Weight
(Kg/pc)		 Note
SET200 240 200 40.00 Without heat treatment
Flat Plate
Size Dimensions
(mm)		 Thickness
(mm)		 Hole Dia.
(mm)		 Weight
(Kg/pc)
SST200 450×450 120 220 155.00
Drill Bit
Size Outer Dia.
(mm)		 Application Range (Advice)
ESS-F Weathered rock, stone walls, rubble
SST200/350 350

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