Professional Customized Rust Prevention, Anti-Corrosion, Wear-Resistant, and Durable Hollow Grouting Rock Bolts

• Material: 45#,Q355b
• Type: Anchor Bolt
• Connection: Hinged Bolts
• Head Style: Circular
• Standard: GB
• Grade: High-Performance
• Model NO.: Hollow Grout Rock Bolt R25 R28 R32
• Application: Building
• Finish: Bright(Uncoated)/Longer Life Ticn
• Surface Treatment: Hot DIP Galvzanized
• Payment Term: 30%Tt Advance + 70% Balance
• Function: Underground Mining Tunnel Arch Reinforcement
• Delivery Time: Within 7-20 Days
• Sample: Available
• Advantage: Quality Assurance, High-Quality and Affordable
• Quality: Excellent
• Capacity: High Bearing Capacity
• Tolerance: +0/-0.2mm
• Heat Treatment: Annealed
• Tensile Strength: >180kN
• Yield Strength: >125kN
• Diameter: 22mm, 25mm,28mm, 32mm, 5lmm,
• Quality Control: 100% Inspection
• Thickness: 2.75mm/3mm/3.5mm
• Transport Package: Customizable
• Specification: R25 R32 R38 R51
• Trademark: LB
• Origin: China
• HS Code: 7308400100
• Production Capacity: 500000 Pieces/Day

Product Description

Product Description

         Hollow anchor rod is a slender rod body that penetrates deep into the interior of rock and soil and controls the deformation of the rock and soil. The accessories include a cushion plate Nuts and other
components. One end is connected to the engineering structure, and the other end penetrates deep into the bottom layer. The entire anchor rod is divided into free sections The free section refers to the section that transfers the tension at the anchor head to the anchor solid area, and its function is to apply pre tension to the anchor rod Stress; The anchoring section refers to the area where the cement slurry binds the prestressed reinforcement to the soil layer, and its function is to connect the anchor solid with the soil The adhesive friction effect of the layer increases, increasing the pressure bearing effect of the anchor body, and transmitting the tension of the free section to the depth of the soil.

Product Parameters

item	value
Color	silver, Black, Grey
Finish	Bright(Uncoated), Longer Life TiCN
System of Measurement	Customized
Place of Origin	China
	Hebei
Brand Name	LB
Material	Steel
Diameter	5/16IN, 12mm
Capacity	High bearing capacity
Standard	GB
Brand Name	Brand Name
Surface treatment	Hot Dip Galvzanized
Application	Industrial and mining
Payment Term	30%TT Advance + 70% Balance
Function	Underground Mining Tunnel Arch Reinforcement
Length	Customized Length
Delivery time	Within 7-20 Days
Sample	Available
Advantage	Quality assurance, high-quality and affordable
Quality	Excellent

Packaging & Shipping

Company Profile

Hebei Langben Building Materials 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, tray, W copper belt, U-shaped steel frame and steel grade line. 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.
Our main product categories are :
a) resin capsules
b) mining roof support rockbolt, split set bolt
c) mining surface support mesh, w strap, dome plate
d)other roof support products used in underground mining
In order to deliver value to our customers we have partnered with competitive and established manufacturers worldwide.

FAQ

1. who are we?
We are based in Hebei, China, start from 2011,sell to Domestic Market(50.00%),Southeast Asia(10.00%),North America(9.00%),Africa(9.00%),Western Europe(5.00%),Mid East(5.00%),Eastern Europe(3.00%),South America(2.00%),Oceania(2.00%),South Asia(1.00%),Eastern Asia(1.00%),Southern Europe(1.00%),Central America(1.00%),Northern Europe(1.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Friction Bolt; Solid Deformed Bar; Resin Capsule; Welded Wire Mesh Sheet; Domed Plate

4. why should you buy from us not from other suppliers?
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

5. what services can we provide?
Accepted Delivery Terms: FOB;
Accepted Payment Currency:USD;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese

Product advantage

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