| Customization: | Available |
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| Type: | Seamless |
| Technique: | Hot Rolled |
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| Product Introduction | Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor bolt consists of rod, drill bit, coupling, plate, grouting stopper and nut. 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. Hollow anchor bar is made of seamless tube with high strength. | |||||||
| Features of Hollow Grouting Anchor Tube | 1.Fits standard Boomer, ROC and Mustang rigs. 2.Particularly suitable for difficult ground conditions. 3.A high rate of installation since drilling, placing and grouting can be performed in one single operation. 4.Self drilling system eliminates the requirement for a cased borehole. 5.Installation with simultaneous drilling and grouting possible. 6.Easy installation in all directions, also upwards. 7.Suitable for working in limited space, height and in areas of difficult access. 8.Simple post grouting system. 9.Hot-dipped galvanizing for corrosion protection |
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| R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S | |
| Outsidediameter (mm) | 25 | 32 | 32 | 38 | 51 | 51 | 76 | 76 |
| Internal diameter (mm) |
14 | 19 | 16 | 19 | 36 | 33 | 52 | 45 |
| Ultimate load capacity (KN) |
200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
| Yield load capacity (KN) |
150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
| Tensile strength, Rp0.2 (N/mm2) |
800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Yield strength, Rp0.2 (N/mm2) |
650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Weight(Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8 | 16 | 19.7 |
| Thread type (left-hand) |
ISO 10208 | ISO 1720 | MAI T76 Standard | |||||
| Steel grade | En10083-1 (Alloy structure steel) | |||||||
| Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical. | ||||||||
| R thread anchor bar or called rock rod, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world. Thread size: R25, R32, R38, R51, T76. Thread standard: ISO10208, ISO1720 etc. |
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1. Who are we?
Our headquarters is located in Shandong, China. Since 2002, we have been selling to the domestic market (40.00%), Northern Europe (8.00%), North America (7.00%), the Middle East (7.00%), Africa (6.00%), South America (5.00%), Southeast Asia (5.00%), East Asia (5.00%), South Asia (5.00%), Eastern Europe (3.00%), Western Europe (3.00%), Central America (3.00%), Southern Europe (2.00%), and Oceania (1.00%). There are about 101-200 people in our office.
2. How do we guarantee quality?
Pre-production samples are always available before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Aluminum plate, aluminum coil, aluminum foil, carbon steel, alloy steel, stainless steel, copper galvanizing, etc
4. Why should you buy from us instead of other suppliers?
ZhongYe Metal Products (Shandong) Co., Ltd. is a leading manufacturer of aluminum products and carbon alloy materials in China, with more than 20 years of experience. More than 160 experienced workers use German brand processing equipment for production.
5. What services can we provide?
Accepted delivery conditions: FOB, CIF, FAS, DDP, express, DES;
Accepted payment currencies: US dollar, Australian dollar, Euro and RMB;
Payment types accepted: T/T, L/C, MoneyGram, credit card, PayPal, Western Union remittance, cash;
6. After-sales service: 24-hour online maintenance guidance service.
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