Basic Info.
After-sales Service
After Received 1 Year
Warranty
After Received 1 Year
Certification
CE, RoHS, ISO 9001:2000, ISO 9001:2008
Surface Treatment
Galvanized
Manufacturing Process
Forging
Application
Coal Mining, Roadway Support, etc
Installation Site
Surface Engineering
Thickness
1.2mm,1.5mm,1.7mm,1.8mm,2.0mm,2.2mm,2.3mm,2.5mm,2.
Outside Diameter
30mm,33mm,40mm,42mm,43mm,46mm,etc
Advantage
Has High Alkali Resistance and Tensile Strength
Ring
Spot Welding and Full Welding
Selling Units
Single Item
Transport Package
Standard Seaworthy Packing
Specification
Q235, 16Mn, 20 Mnsi
Product Description
Product Description
Pipe slotted bolt is a new type of full-length anchorage and active reinforcement of surrounding rock. Its three-dimensional part is a longitudinally-slotted high-strength steel pipe. When installed in a drilling hole slightly smaller than the diameter of the pipe, it can immediately exert radial pressure on the hole wall and prevent the friction of surrounding rock from sliding down within the full-length range, plus the bearing force of the anchor tray plate, so that the surrounding rock is in a three-way stress state. And achieve rock stability. When the surrounding rock is displaced by blasting vibration, the anchoring force increases obviously in the later stage. When the surrounding rock is displaced significantly, the bolt does not lose its support resistance, and it has better characteristics than the expanded shell bolt.Diameter(±0.5) | 33mm | 39mm | 40mm | 42mm | 46mm | 47mm |
Length(±0.5) | 1.2m | 1.5m | 1.9m | 2.0m | 2.5m | 3m |
Mining Plate(±0.5) | 140*140*6mm,150*150*5mm,200*200*10mm |
Material | Q235,16Mn,20 Mnsi |
Product Usage
1. Determine the anchor bolt hole position according to design requirements and drill holes using drilling tools.
2. Blow out the rock powder inside the hole with compressed air.
3. Install an anchor plate on the rod and use an impact drill to drive the anchor rod into the hole.
Recommended calculation method for drilling hole diameter of pipe joint anchor rod:
In rock layers: borehole diameter=(0.9-0.95) x anchor rod diameter
Anchor rod drilling depth: Anchor rod length+100mm, drilling deviation rate < 1%
In coal seams: borehole diameter=(0.9-1.00) x anchor rod diameter
Anchor rod drilling depth: Anchor rod length+200mm, drilling deviation rate < 1.5%
Detailed Photos
Product Parameters
item | value |
Color | Brown, silver |
Finish | Bright(Uncoated), Longer Life TiCN |
System of Measurement | Metric |
Place of Origin | China |
| Hebei |
Brand Name | LB |
Model Number | split set |
Material | Q235 |
Diameter | 5/16IN, 12mm |
Capacity | strong |
Standard | GB |
Product name | Split set rock bolt |
Model Number | Q235 |
Brand name | LB |
Ring | Spot welding and full welding |
Thickness | 1.2mm,1.5mm,1.7mm,1.8mm,2.0mm,2.2mm,2.3mm,2.5mm,2.75mm,3.5mm |
Outside diameter | 30mm,33mm,40mm,42mm,43mm,46mm,etc |
Length | 1.2m,1.5m,1.8m,2.0m,2.5m,etc |
Application | Coal mining, roadway support, etc |
Advantage | Has high alkali resistance and tensile strength |
Package | Cartons, wooden boxes, customized by customers |
Certifications
Packaging & Shipping
Company Profile
We are a manufacturer and exporter specializing in providing supporting materials for coal mines, construction projects and large concrete projects. We mainly produce anchor rods, trays, resin anchors, mesh, W steel belts, u-beams, anchors and other supporting materials for coal mine projects, and our supporting materials are exported to more than ten countries and regions, such as the United States, Europe, Russia and so on. It is one of the important manufacturers and exporters of anchoring materials in China.
We have passed a series of certificates such as Quality Management System Certification and Environmental Management System Certification.
Our enterprise vision is: casting industry famous brand, building industrial and mining leading enterprises.
we can supply high-quality products to meet the requirements of top-ranking customers in this field from different countries in the world.
We always strive to be the leader in the industry and create a more valuable one-stop service platform for coal mine support materials for our customers.
FAQ
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
Address:
Street and Jianshe Road in Linmingguan Town, Yongnian District, Handan, Hebei, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Construction & Decoration, Industrial Equipment & Components, Metallurgy, Mineral & Energy, Security & Protection, Tools & Hardware
Company Introduction:
To provide quality, reliable, durable and efficient products and services within the Mining and Industrial Industry. Currently the company is into mining and industrial product manufacturing and supplies. 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.