High Strength Bar Hollow Grouting Bolt
Product Specifications
| Prod Model: |
GY-SDA |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Port Of Departure: |
Tianjin or Qingdao |
| Delivery: |
2-3 Weeks After Payment |
Product Description
Common hollow anchor bolt consists of anchor rod, anchor head, grouting stopper, arch plate and nut. The anchor rod is made of seamless steel tube with high strength. Hex nut and hemispherical nut are available which are all machined. You can also choose square plate or round plate. Common hollow anchor bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works, suitable for good or medium rock surroundings.
Brief description:
1. Common hollow anchor bolt
2. Made of seamless steel tube
3. Hollow design
4. High strength
5. Widely used in tunneling, mining, roof suppoting of underground works, etc
|
specification |
GY25 |
GY28 |
GY32 |
|
external diameter(mm) |
25 |
28 |
32 |
|
Breaking load(KN) |
≥ 150-180 |
≥ 180-220 |
≥ 220-250 |
|
Interior diameter(mm) |
≥ 15 |
≥ 17 |
≥ 22 |
|
drilling diameter(mm) |
42 |
42 |
51 |
|
thread type |
left hand |
|
standard length(m) |
1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0 |
|
length tolerance |
± 2.5% |
Luoyang Gongyan Technology Co., Ltd. Was founded in 2008 in Luoyang which is a famous historical city and an industrial center in China.
We are a specialized manufacturer of rock bolts and geo-technical materials. With abundant funds and great research and development capability, our company has several rock bolt product lines, sets of rock bolt accessories production equipments and testing equipments. We can also supply products according to customer's requirements besides the routine types.
We manufacture kinds of support products, such as common hollow grouting rock bolt, pre-stressed hollow grouting rock anchor, self-drilling hollow grouting rock bolt, thread bar, FRP rock bolt, friction bolt, high strength bar, full thread pipe shed, steel pipe and accessories.
We also supply geo-technical materials such as waterproof board, geo-textile, geo-membrane, geo-grid, geomat, corrugated pipes, expansion rubber and steel fiber. The products are widely used in various types of underground support constructions, such as road and bridges, water conservancy project, mineral exploration, underground mining in soft and hard rock, tunneling, slope stabilization industry and etc.
During the past several years, we have participated in lots of latest national key projects in China, such as highway, railway, water conservancy, nuclear, coal mine. And gradually we have been one of the most credible manufacture in the industry. Further, we have established steady business relations with customers inland and overseas.
Our products always insist on the propose of quality first. According to our corporate philosophy "customer first, quality-oriented", now the quality of the production has been put into the central part of company's internal management. In future we will go on service our customers with reliable quality and competitive price.
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