Self Drilling Anchors Supanchor

Self Drilling Hollow Anchor The SupAnchor Self Drilling Hollow Anchor is a unique anchoring systems and is today's answer to the increasing demands of the tunnelling industry and ground engineering for safer and faster production. 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. Features and Advantages - Particulary suitable difficult ground conditions - A high rate of installation since drilling, placing and grouting can be performed in one single operation. - Self drilling system eliminates the requirement for a cased borehole

The construction is easy and fast.

Applications Tunnelling: - Radial bolting - Forepoling - Face stabilization - Portal preparation Ground engineering: - Slope stabilization - Micro injection pile - Temporary support anchor - Soil nailing

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SPECIFICATIONS Anchor Rod Outside diameter (mm) Internal diameter, average (mm) External diameter, effective (mm) Ultimate load capacity (kN) Yield load capacity (kN) Tensile strength, Rm (N/mm2 ) Yield strength, Rp0,2 (N/mm2 ) Weight (kg/m) Thread type (left-hand ) Steel grade

R25N 25 14 22.5 200 150 800 650 2.3

R32N R32S 32 32 19 16 29.1 29.1 280 360 230 280 800 800 650 650 3.2 3.6 ISO 10208

R38N 38 19 35.7 500 400 800 650 5.5

R51L R51N T76N T76S 51 51 76 76 36 33 52 45 47.8 47.8 71 71 550 800 1600 1900 450 630 1200 1500 800 800 800 800 650 650 650 650 6.5 8.0 16.0 19.7 ISO 1720 MAI T76 standard * EN10083-1 (Alloy structure steel) * Compared to carbon steel, alloy structure steel has high anti-corrosion capacity (live time of the anchor bolts after injected into rocks) and high mechanical capacity. R25N 35 150 0.58

R32N R32S R38N R51L R51N T76N 42 42 52 63 63 95 140 200 200 145 160 or 190 220 0.7 0.75 1.7 1.15 1.9 6.4 Machined steel coupling with middle stop

T76S 95 200 6.4

R25N 41 35 0.25

R32N 46 45 0.35

T76S 100 80 3.6

Anchor Coupling Outside diameter (mm) Lenght (mm) Weight (kg/pc)

Anchor Nut

Key size (mm) Lenght (mm) Weight (kg/pc)

R32S R38N R51L R51N T76N 46 50 75 75 100 45 55 70 70 80 0.35 0.5 1.55 1.55 3.6 Machined steel nut or Casting steel nut

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SPECIFICATIONS Anchor Plate

Dimension (mm) Thickness (mm) Hole diameter (mm) Weight (kg/pc)

R25N R32N R32S R38N R51L R51N T76N 150x150 200x200 200x200 200x200 200x200 250x250 250x250 8 10 12 12 30 40 40 30 35 35 41 60 60 80 1.4 3 3.7 3.6 8.8 18.5 18 * Cold deformed with geometry

T76S 250x250 40 80 18

Drill Bit

Diameter (mm) Hardened cross bit (EX) Tungsten carbon cross bit (EXX) Hardened button bit (ES) Tungsten carbon button bit (ESS) Hardened arch bit (EC) Tungsten carbon arch bit (ECC) Hardened drop centre bit (EY) TC drop centre bit (EYY) Casting clay bit (EW)

R25N R32N R32S R38N R51L R51N T76N T76S 130, 150, 160, 180, 200 51, 76, 90 76, 90, 100, 110, 115, 130, 150 42, 51 Hardened cross bit for loose to medium dense conditions with small boulders. TC cross bit for soft to medium rock formations. Hardened button bit for unconsolidated rock with boulders. Button bit with TC inserts for medium rock formations. Hardened drill bit with optimized geometry for unconsolidated soil with small boulders. TC drill bit with optimized geometry for soft to medium rock formations. Hardened cross bit for loose to medium dense ground conditions. TC drill bit for soft to medium rock formations. Casting clay bit with optimized geometry for very soft to soft soft caly. * Machined steel bit or Casting steel bit

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