HengdaAnchor® has achieved the security application of 26,000,000 meters self-drilling anchor bar in the world. As the No.1 manufacturer and exporter of self-drilling anchors in Asia, HengdaAnchor® self drilling anchor system is a bolting solution for difficult ground and rock conditions. The system enables drilling and grouting in one operation, making much saving in jobsite and project time.
Description
TECHNICAL DATA
Drilling Hollow Bar | R32L/22 | R32N/20 | R32N/18.5 | R32S/17 | R32S/15 | R32SS/14 | R32/320 |
Outside Diameter (mm) | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
Internal Diameter (mm) | 22 | 20 | 18.5 | 17 | 15 | 14 | 19 |
Cross sectional area (mm2) | 356 | 363 | 433 | 440 | 509 | 522 | 382 |
Ultimate load (kN) | ≧ 250 | ≧ 280 | ≧ 280 | ≧ 360 | ≧ 360 | ≧ 405 | ≧ 320 |
Load at 0.2% Yield (kN) | ≧ 200 | ≧ 230 | ≧ 230 | ≧ 280 | ≧ 280 | ≧ 300 | ≧ 250 |
Weight (kg/m) | 2.75 | 2.85 | 3.30 | 3.50 | 4.00 | 4.10 | 3.00 |
Type of steel | 40Cr / 20Cr / Q355B |
Elongation % | Agt ≥ 5%, A100mm ≥ 12% / 10% / 8% / 6%, A200mm ≥ 10% / 6% ... |
Thread type | ISO 10208 - R32 / Left or Right |
Length (m) | (1) x 2, x3, x4, x5, x6, x7, x8, x9 |
Options of Anti-corrosion | Hot-dipped Galvanization / Epoxy Coating / HengdaCoat*Epoxy Coating: Bending properties up to standard ISO 1519; Impact properties up to standard ASTMD 2794; Adhesion up tostandard ISO 2409:2007.*HengdaCoat: HDG + EC |
Anchor Nut | R32L/22 | R32N/20 | R32N/18.5 | R32S/17 | R32S/15 | R32SS/14 | R32/320 |
Key Size SW (mm) | 46 | 46 | 46 | 46 | 46 | 46 | 46 |
Length L (mm) | 45 | 45 | 45 | 65 | 65 | 75 | 65 |
Thread type | ISO 10208 - R32 / Left or Right |
Type of steel | 40Cr / C45 / Q355B / 20Cr |
Unit Weight (kg) | 0.35 | 0.35 | 0.35 | 0.53 | 0.53 | 0.62 | 0.53 |
Nut type | Hex Nut / Spherical Nut |
Hardness | HRC 20-30 |
Options of Anti-corrosion | Hot-dipped Galvanization / Epoxy Coating / HengdaCoat *Hot-dipped Galvanization: ISO 1461. * Epoxy Coating: Bending properties up to standard ISO 1519; Impact properties up to standard ASTMD 2794; Adhesion up to standard ISO 2409:2007. *HengdaCoat: HDG + EC |
Anchor Coupling | R32L/22 | R32N/20 | R32N/18.5 | R32S/17 | R32S/15 | R32SS/14 | R32/320 |
Outside Diameter (mm) | 42 |
Length (mm ) | 145 | 160 | 160 | 190 | 190 | 220 | 190 |
Length (mm ) | 145 |
Length (mm ) | 145 |
Unit Weight (kg) | 0.72 | 0.80 | 0.80 | 0.96 | 0.96 | 1.10 | 0.96 |
Hardness | HRC 20-30 |
Options of Anti-corrosion | Hot-dipped Galvanization / Epoxy Coating / HengdaCoat *Hot-dipped Galvanization: ISO 1461. *Epoxy Coating: Bending properties up to standard ISO 1519; Impact properties up to standard ASTMD 2794; Adhesion up to standard ISO 2409:2007. *HengdaCoat: HDG + EC |
Anchor Plate | R32L/22 | R32N/20 | R32N/18.5 | R32S/17 | R32S/15 | R32SS/14 | R32/320 |
Size (mm) | 200 x 200 |
Thickness (mm) | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
Hole Diameter (mm) | 35 |
Type of steel | Q235 / C45 / Q355B |
Unit Weight (kg) | 3.00 | 3.00 | 3.00 | 3.60 | 3.60 | 3.60 | 3.60 |
Options of Anti-corrosion | Hot-dipped Galvanization / Epoxy Coating / HengdaCoat*Hot-dipped Galvanization: ISO 1461.*Epoxy Coating: Bending properties up to standard ISO 1519; Impact properties up to standard ASTMD 2794; Adhesion up to standard ISO 2409:2007.*HengdaCoat: HDG + EC |
Centralizer | R32 |
Outside Diameter (mm) | 72 |
Length (mm) | 40 |
Hole Diameter (mm) | 41 |
Type of steel | C45 / GFRP |
Unit Weight (kg) | 0.30 |
R32 Drill Bit | EX | EXX | ESF | ESSF | EW |
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| Hardened Cross Bit for loose to medium dense ground conditions | TC cross bit for soft to medium rock formations | Hardened button bit for unconsolidated rock with boulders | TC Button bit for medium rock formations | Clay Bit for Clay, Sand, Loose Ground & Fill |
OD /Weight(mm/kg) | D51/0.35D76/0.75D90/160 | D51/0.40D76/1.20D90/2.30 | D51/0.42D76/1.25D100/18 | D51/0.47D76/1.60D90/1.90 | D76/0.55D90/1.06D100/1.08D110/1.30D130/2.43 |
Hardness | HRC 50-55 | HRA 87-89 | HRC50-55 | HRA 87-89 | HRC 43-48 |
Thread type | ISO10208-R32/Left or Right |
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Type of steel | 40Cr/42CrMo/C45 |
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R32 Drill Bit | EC | ECC | EY | EYY |
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| Hardened arching bit for unconsolidated soilw small boulders | TC arching bit for soft to medium rock formations | Hardened drop centre bit for fills | TC drop centre bit for Competent Ground& Strong Rock |
OD Weight(mm/kg) | D51/0.35D76/1.16 | D51/0.40D76/085 | D76/0.97D90/1.35 | D76/0.95D90/1.40 |
Hardness | HRC 43-48 | HRA 87-89 | HRC50-55 | HRA 87-89 |
Thread type | ISO10208-R32/Left or Right |
Type of steel | 40Cr/42CrMo/C45 |
HengdaAnchor® Self Drilling Hollow Anchor is an unique anchoring system 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：
Fits Anchor® standard Boomer, ROC and Mustang rigs. Particularly suitable for 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.
• Installation with simultaneous drilling and grouting possible.
• Easy installation in all directions, also upwards.
• Suitable for working in limited space, height and in areas of difficult access.
• Simple post grouting system.
Hot-dipped galvanizing for corrosion protection
