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Beihua manufactures five series of rock bolts.
Categorized by anchor types, there are tapered head, spiral head, cross disc and expansion sleeve, and cable types.
categorized by profiles, there are round bar and rebar type.
By corrosion proof, there are Zinc and Aluminum electroplate + color
passivity layer, Zinc and Nickel electroplate + color
passivity layer, Double rust proof by electroplating + epoxy layer protection.
By application, there are cement full length anchor, epoxy terminal anchor, epoxy full length anchor, mechanical terminal anchor and combined anchor.
Diameters: 16mm,18mm,20mm,25mm,32mm;
Lengths: Rock bolt ranges from 0.5m to 6m; Cable bolt ranges from 2.5m to more than 100m.
Beihua Rock Bolts are manufactured as per the standard of BeiHua.
The profiles and mechanical characteristics conform to China National Standard and
International Applicable Standard.
Corrosion proof conforms to ASTM.
The products series have been strictly tested by China National Quality Inspection Center of coal mine reinforcement equipment. Widely used at China's Key projects.
Material and Corrosion Proof
Material:
Rock Bolt normal strength:
Bolt body, nut, plate is made of
normal carbon steel.
Rock bolt high strength:
Bolt body, nut and plate: Low alloy
steel which conforms to China National standard and International
applicable standard.
Performance:
Rock bolt normal strength: Yield
strength >=350N/mm2
Rock Bolt high strength: Yield
strength >=460N/mm2
Corrosion proof:
Method1:
Zinc and Aluminum electroplate + color
passivity layer
Method2:
Zinc and Nickel electroplate + color
passivity layer
Customized Method:
Double rust proof by electroplating + epoxy layer protection.
Inspected by:
China national quality inspection center of coal mine reinforcement equipment
Shenyang corrosion proof technology
research institute, China Academy of Science and technology.
In Corrosion protection: Upon request by
customer, BH can produce special corrosion protected bolts, such as epoxy coated bolts.
Application of Beihua's Rock Bolt:
Suitable for Tunnel, Mineral Mines, Dams, foundation and slope protection.
Each series has been tested with a lot of project practice.
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