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| Selling Units: | Ton |
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| Package Type: | Standard packing |
| Picture Example: |
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Packaging: Standard packing
Productivity: 1000 tons
Transportation: Ocean,Air
Place of Origin: China
Supply Ability: 1000 tons a month
Certificate: ISO9001
HS Code: 84139190
Payment Type: T/T
Incoterm: FOB,CIF,EXW,CFR
Product Description
Hollow bolt is a slender rod body that goes deep into the interior of rock and soil and can control the deformation of rock and soil. It also has some small parts such as base plate and nut, and the whole bolt is divided into free end and anchoring section. Hollow bolt is a kind of bolt, which is mostly used in relatively stable and complete rock strata. Resin, engineering glue, quick setting cement and other anchoring agents are injected from the center of the bolt, and the anchoring quality is better than that of ordinary bolt. Due to the emergence of self-propelled hollow grouting bolts, hollow grouting bolts can also be used in the stratum under loose rock and soil conditions.
The hollow bolt body of the hollow bolt adopts the hollow design, and the middle hole of the rod body is used as the high-pressure wind and water channel and grouting channel for drilling. Compared with the solid rod body, the hollow rod body design can obtain better stiffness and shear strength. The full-length standard large pitch thread structure on the outer surface of the bolt is convenient for the cutting and lengthening of the bolt. Compared with the smooth rod body, it increases the bonding area between the bolt body and the grouting material, thereby improving the anchoring force
Product Specification
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| R25N | R32N | R32S | R38N | R51L | R51N | T76N |
| Outside Diameter (mm) | 25 | 32 | 32 | 38 | 51 | 51 | 76 |
| Internal Diameter (mm) | 14 | 19 | 16 | 19 | 36 | 33 | 52 |
| Ultimate Load Capacity (kN) | 200 | 280 | 360 | 500 | 550 | 800 | 1600 |
| Yield Load Capacity (kN) | 150 | 230 | 280 | 400 | 450 | 630 | 1200 |
| Tensile Strength, Rm (N/mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Yield Strength, Rp0.2 (N/mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Weight (Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8.0 | 16.0 |
| Steel Grade | EN10083-1 (Alloy Structure Steel) | ||||||
| Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical. | |||||||
Product Display
Product Application
Application scope of hollow anchor rod:
1. Radial reinforcement: the hollow bolt can replace the traditional mortar bolt for radial reinforcement, which can solve many defects such as insufficient grouting and pressure grouting in the construction process of the traditional mortar bolt, and ensure the project quality.
2. Slope reinforcement: hollow bolt can be used for the reinforcement of unstable slope. It is not only simple in process, low in cost, but also convenient for construction, with remarkable effect.
3. Foundation pit support: hollow anchor rods can also be used for foundation pit reinforcement of buildings. Not only is the process simple, but also pressure grouting can be realized, and the conditions of foundation pit surrounding rock can be improved.
Packing & Delivery
Packaging:Standard seaworthy export packing, other types of packing can be customized as every requirement.
Shipping packaging:Bundled with firm steel straps, easy for loading and unloading.
Our Certifications
FAQ
Q: Are you a manufacturer?
A:Yes, we are a Steel Pipe manufacturer and we have our own plant in Shandong, China. We are producing and exporting seamless steel pipe, welded steel pipe,galvanized steel pipe . We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.