Mining Chains
High Tension Round Link Chain For Mining
High tension round link chain for mining is a heavy-duty chain designed for extreme conditions in underground and surface mining operations. It supports hoisting and hauling of ore and minerals with consistent performance under high load and repetitive stress. Manufactured to GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012 standards, it features a round link construction with precise dimensional control and high tensile strength. Available in sizes from 14*50 to 42*152 with working load limits
- Grade
- C
- Standard
- GB/T12718-2009 Quality
- Catalogue Family
- Mining Chains
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What High Tension Round Link Chain for Mining Gives You
- Round link design reduces stress concentration and improves fatigue resistance in repetitive lifting and pulling cycles
- Complies with GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012 for consistent performance in mining environments
- High tensile strength with breaking loads up to 2270 kN ensures safe operation under extreme load conditions
- Precision dimensions and tight tolerances minimize wear and extend service life in abrasive mining conditions
- Available in quality grades B, C, 2.C, PW9, C-Super, and D-3 to match specific duty requirements
- Standardized marking of working load limit and material grade for traceability and safety compliance
- Unit weight and dimensional data provided for accurate load and system planning
Application Scenarios
Where High Tension Round Link Chain for Mining Is Used
- Underground mine hoisting systems where chains are used to raise ore and personnel cages under continuous high load
- Surface mining conveyor systems requiring durable chain links for long-term operation in dusty and corrosive environments
- Heavy haulage operations in open-pit mines where chains are used in winch and pulley systems for moving large equipment
- Mobile mining rig setups where chains are part of the lifting and anchoring system for drill jumbos and loaders
- Recovery and maintenance operations where chains are used to secure and move heavy components in confined spaces
- Long-term mining projects requiring chains with documented material test certificates and traceability
Who It Is For
Buyers This Product Is Built For
- Mining contractors sourcing chains for underground and surface mining equipment
- Equipment manufacturers building hoists, winches, and conveyors for mining applications
- Rigging and maintenance teams specifying chains for high-duty lifting and hauling in harsh conditions
- Procurement engineers requiring chains with documented compliance to GB/T12718-2009 and DIN22252-2012
- Logistics coordinators managing bulk shipments of mining rigging components across multiple sites
Problems It Solves
Problems This Product Removes
- Chain failure due to stress concentration in sharp-edged or square links under repeated dynamic loading
- Inconsistent performance from non-standard chains that do not meet mining-specific mechanical requirements
- Lack of traceability in chains used in safety-critical mining systems where failure could lead to downtime or injury
- Difficulty sourcing chains with documented material test certificates and compliance to international mining standards
- Buying chains from multiple suppliers with different quality grades and dimensional tolerances
- Chain wear and premature failure due to poor fatigue life in abrasive and high-vibration mining environments
Technical Features
Technical Features
- Round link construction with high tensile strength and fatigue resistance
- Manufactured to GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012 standards
- Available in quality grades B, C, 2.C, PW9, C-Super, and D-3 for different load and duty requirements
- Working load limit and material grade stamped on each chain link for traceability
- Minimum elongation at break of 12% and maximum elongation under test load of 1.9% for consistent performance
- Fatigue life tested to the agreed cycle count at a proportion of the breaking load for reliable long-term use
- Bending deformation deflection value of 12 mm ensures structural integrity under side load
Specifications
High Tension Round Link Chain for Mining Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Standard | GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), DIN22252-2012 |
|---|---|
| Quality Grade | B, C, 2.C, PW9, C-Super, D-3 |
| Capacity Range | 150 kN to 1810 kN working load limit |
| Material | High tensile alloy steel |
| Link Diameter | 14 mm to 42 mm |
| Pitch | 50 mm to 152 mm |
| Minimum Inner Width | 17 mm to 46 mm |
| Maximum Outer Width | 48 mm to 154 mm |
| Unit Weight | 4 kg/m to 48 kg/m |
| Breaking Load | 190 kN to 2270 kN |
| Test Load | the agreed cycle count |
| Elongation at Break | 12% minimum |
| Maximum Elongation Under Test Load | 1.9% |
| Bending Deformation Deflection | 12 mm |
| Fatigue Life | the agreed cycle count at a proportion of the breaking load |
| Certificates | Material Test Certificate to EN 10204 3.1 on request |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- High tensile alloy steel for strength and impact resistance
- Heat-treated steel to improve fatigue life and tensile performance
- Surface finish selected to resist abrasion and corrosion in mining environments
- Material composition verified through chemical analysis and mechanical testing
Manufacturing Process
How This Product Is Made
1Raw material selection and chemical analysis to meet alloy specifications
2Round link forging with precision forming to maintain dimensional accuracy
3Heat treatment to achieve required tensile and fatigue properties
4Machining of link ends and surface finishing to reduce stress risers
5Proof load testing on production batches to validate breaking strength
6Stamping of working load limit and material grade on each link
7Final inspection and packing for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches to confirm breaking strength
- Dimensional tolerance check against published size table
- Breaking strength validation to ensure compliance with stated load limits
- Material Test Certificate to EN 10204 3.1 issued with each order
- Visual inspection for surface defects, cracks, or deformation
- Third-party inspection accepted at the Qingdao warehouse before shipment
- Traceability marking stamped on each chain link for field use
Documentation
Certification And Documentation Supplied
- Material Test Certificate to EN 10204 3.1 supplied with orders
- Compliance with GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012
- Working load limit and material grade stamped on each chain link
Customisation
Customisation Options
- Custom tonnage stamping on chain links for specific load requirements
- Private label and OEM marking available for brand-specific packaging
- Finish options including zinc plating, powder coating, or electrophoretic black
- Custom sizes and assemblies built to a supplied drawing
- Packing configuration tailored to carton count, pallet pattern, or warehouse handling
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Standard square link chain | Round link design reduces stress concentration and improves fatigue life in repetitive mining cycles, though it may cost more and require tighter handling |
| Low-grade chain without certification | This chain meets international mining standards with documented material test certificates, while low-grade chains lack traceability and may fail under high load |
| Chains from non-specialized suppliers | Manufactured specifically for mining with defined quality grades and fatigue testing, unlike generic chains that may not support continuous high-duty use |
| Chain with no working load limit marking | Each link is stamped with WLL and material grade, enabling safe use and compliance, whereas unmarked chains pose safety risks |
Use Guide
How To Use And Inspect High Tension Round Link Chain for Mining
- Verify the stamped working load limit matches the calculated load in the application, not the equipment rating
- Inspect each chain link before use for deformation, cracks, or wear on the surface or link ends
- Do not exceed the maximum elongation under test load of 1.9% during operation
- Avoid side loading or bending the chain beyond the 12 mm deflection limit to prevent structural failure
- Use only with compatible fittings and hardware that match the chain’s diameter and pitch
- Retire the chain if the marking is illegible, the link shows permanent deformation, or the elongation exceeds 12% at break
- Store in a dry, clean area to prevent corrosion and maintain surface integrity
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Answers
High Tension Round Link Chain for Mining FAQ
What standards does this chain comply with?
The chain is manufactured to GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012. These standards ensure performance and safety in mining applications.
What quality grades are available?
Available grades include B, C, 2.C, PW9, C-Super, and D-3. Each grade has defined tensile strength and fatigue life to suit different duty levels.
Can you supply material test certificates?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with each order upon request. It includes chemical and mechanical test results.
What is the working load limit range?
The working load limit ranges from 150 kN to 1810 kN, depending on the chain size and quality grade. The limit is stamped on each link.
Is proof load testing performed?
Yes. Each production batch undergoes proof load testing to validate breaking strength. Dimensional and mechanical checks are recorded.
Can you custom stamp our brand or tonnage?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options. Finishes can be zinc plated, powder coated, or electrophoretic black.
How are the chains packed for export?
Standard packing is cartons on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack. Free storage in Qingdao for two months is available.
Need A Quote On High Tension Round Link Chain for Mining
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