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MAXDRILL High Performance self-drilling Hollow Anchor bar/bit for Grappling Anchoring
full threaded steel self drilling rock bolt / hollow anchor bar / anchor rods
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Product DespcriptionDuring the construction of undergroud works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
| Outer side diameter | Average internal diameter | Effective external diameter | Aver.eff. Cross sectional area | Ultimate load capacity | Yield load capacity | Average tensile strength Rm | Average yield strength Rp0.2 | Theorical weight | Thread type | |
| mm | mm | mm | mm² | KN | KN | N/mm² | N/mm² | KG/m | ||
| R25N | 25 | 14 | 23 | 244 | 210 | 150 | 805 | 660 | 2.4 | ISO10208 |
| R32N | 32 | 18.5 | 29.1 | 396 | 280 | 230 | 720 | 560 | 3.4 | |
| R32S | 32 | 15 | 29.1 | 488 | 360 | 280 | 740 | 570 | 4.1 | |
| R38N | 38 | 19 | 35.7 | 717 | 500 | 400 | 700 | 540 | 6.5 | |
| R51L | 51 | 36 | 47.8 | 776 | 550 | 450 | 690 | 580 | 7.8 | |
| R51N | 51 | 33 | 47.8 | 939 | 800 | 630 | 840 | 670 | 9.8 | ISO1720 |
| T76N | 76 | 51 | 76 | 1835 | 1600 | 1200 | 880 | 660 | 15.0 | |
| T76S | 76 | 45 | 76 | 2400 | 1900 | 1500 | 790 | 630 | 19.7 | |
| T30/11 | 30 | 11 | 30 | 260 | 320 | 3.2 | ||||
| T40/16 | 40 | 16 | 40 | 425 | 540 | 5.5 | ||||
| Anchor plate | 120mm*120mm*6mm | 150mm*150mm*8mm | 200mm*200mm*10mm | |||||||
| Anchor nut | SW41*H35 | SW46*H45 | SW65*H55 | |||||||
| Coupling | D35*L150 | D41*L160 | D55*L170 | D64*L120 | ||||||
| Drill Bit | According to different condition, choose alloy,steel Bit, custom design is available. | |||||||||
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FAQ:The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Contact Information
Contact Person:Ms Linda Chen
Website:maxdrillrocktools.en.made-in-china.com
