Tunnel Mining Roof Support Friction Bolt Supporting Tools Split Sets Rock Bolt

• Customization: Available
• After-sales Service: After Received 1year
• Warranty: After Received 1year
• Model NO.: 40, 42, 46, 30, 33,
• Application: Mine Support
• Certification: SGS
• Surface Treatment: Uncoated, Galvanized
• Technics: Forged
• Material: Metal
• Type: Supporting Tools
• Color: Black,Silver
• Capacity: Strong
• Tensile Strenghth: >180kN
• Size: Customized Sizes
• Diameter: 25mm,32mm,38mm
• Head Type: Round
• Delivery Time: 5-15days
• Yield: 400
• Sample: Avaliable
• Advantage: High-Quality Products
• Quality Control: 100%
• Tolerance: +0/-0.2mm
• Thickness: 2.75mm/3mm/3.5mm
• Transport Package: Wooden Pallet
• Specification: 40, 42, 46, 30, 33,
• Trademark: LB
• Origin: China
• Production Capacity: 2100ton/Month

Product Description

Product Description

 

The rod body of friction bolt is made of high-strength, highly elastic steel pipes or thin steel plates, and is longitudinally slotted along the entire length. Make the end of the rod conical for installation purposes.

 

Friction bolt belong to low strength and low stiffness support forms, and are generally only used in tunnels with good surrounding rock conditions, especially in rock tunnels.

 

Detailed Photos

 

Product Parameters

Material	Q235, 345B, 16 manganese K
Diameter	30mm, 33mm, 40mm, 42mm, etc.
Length	1200mm, 1500mm, 1800mm, 2000mm, 2100mm, 2500mm, etc.
Thickness	1.2mm, 1.5mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, etc.

 

• The friction bolt does not need to be used together with resin capsule.
• Welding ring is used for hanging mesh.
• The friction bolts are commonly used in metal mines.

Packaging & Shipping

 

Company Profile

Handan Zhongfu Industrial and Mining Accessories Co., Ltd. was established in 2011, located in Hebei-Yongnian, China's fastener industry base. It has built its own modern large-scale industrial and mining supporting material production workshop, anchoring automation workshop, mesh workshop and bolt workshop. It is a modern high-tech enterprise company integrating research and development, production and sales of industrial and mining supporting accessories.

 

There are 105 of us, including 16 high-tech researchers. The company is equipped with several large-scale testing equipments to ensure the product quality and safety in production. Through the team's perfect management system and strict production process, every production link will be treated with the meticulous care of craftsmen, and the defective products will never enter the market. The company mainly produces resin anchoring agent, welding mesh, diamond mesh, anchor rod, dome plate, W copper belt, U-shaped steel frame and steel strand. Annual production of 30 million anchors, 3 million square meters of mesh, 21,000 anchors and more than 15,000 other accessories. It has been widely used in 28 provinces and cities in the whole park, and has made great contributions to the domestic coal mine support industry and the national railway and dam construction.

Now it has established long-term cooperation with more than a dozen domestic large coal mining enterprises such as China Coal Energy Group, Jinneng Group and shandong energy, and its products are exported to Southeast Asia, Africa and other developing countries.

 

Certifications