Mining Chains
High Tension Round Link Mining Chain
High tension round link mining chain designed for heavy-duty mining applications including hoisting and hauling ore and minerals in underground or surface operations. Built to GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012 standards. Available in sizes from 14*50 to 42*152 with quality levels B, C, 2.C, PW9, C-Super, and D-3. Chain links are forged and heat-treated for high tensile strength and fatigue resistance under continuous dynamic load.
- Grade
- B
- 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 Mining Chain Gives You
- High tensile strength and fatigue life for continuous operation in mining hoisting and hauling systems
- Round link design reduces stress concentration and improves load distribution across the chain
- Complies with multiple international standards including GB/T12718-2009, DIN22252-2012, and ISO-610-1990 (E)
- Available in multiple quality grades to match application severity and duty cycle
- Heat-treated and forged links provide consistent mechanical properties and impact resistance
- Standard 4:1 design factor ensures safe working load is maintained under dynamic conditions
- Wide range of sizes from 14*50 to 42*152 supports diverse mining rigging and lifting needs
Application Scenarios
Where High Tension Round Link Mining Chain Is Used
- Underground mine hoisting systems where chains carry ore buckets or skips under continuous vertical lift
- Surface mining conveyor systems requiring high-strength chain for material transport under heavy load
- Mobile mining equipment such as draglines and excavators using chains for boom and bucket actuation
- Heavy-duty winching and pulling operations in open-pit mining with repeated high-tension cycles
- Rigging setups in mining infrastructure projects where chain must handle shock loads and abrasion
- Replacement of worn or damaged chains in existing mining machinery without redesigning the system
Who It Is For
Buyers This Product Is Built For
- Mining equipment OEMs specifying chains for hoists, conveyors, and excavators
- Mining contractors sourcing replacement chains for underground and surface operations
- Industrial rigging suppliers building complete mining rigging packages
- Maintenance teams in mining operations replacing chains with certified, traceable components
- Logistics and transport operators moving heavy mining equipment using chain-based lifting systems
Problems It Solves
Problems This Product Removes
- Chain failure due to low fatigue life in repeated hoisting and hauling cycles
- Inconsistent performance from non-standard or untested chains in high-stress mining environments
- Lack of traceability and certification for chains used in safety-critical mining applications
- Difficulty sourcing a single supplier for multiple chain sizes and quality grades in one order
- Overloading and premature wear from chains not rated for the actual working load
- Inadequate tensile strength leading to chain elongation or breakage during peak load events
Technical Features
Technical Features
- Round link construction with forged and heat-treated links for high tensile strength
- Complies with 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 duty levels
- Minimum breaking load four times the safe working load (4:1 design factor)
- Stamped working load limit and traceability marking on each chain link
- Proof load testing performed on production batches before shipment
- Material Test Certificate to EN 10204 3.1 supplied with each order
Specifications
High Tension Round Link Mining Chain 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 |
| Chain Size | 14*50 to 42*152 |
| Link Diameter | 14±0.4 mm to 42±1.3 mm |
| Pitch | 50±0.5 mm to 152±1.5 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 |
| Minimum Breaking Load | 150 kN to 2270 kN |
| Elongation at Break | 12% to 48% |
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
- Carbon steel or alloy steel forged into round links
- Heat-treated after forging to improve tensile strength and fatigue resistance
- Surface finish available in zinc plating or powder coating on request
- Material composition verified through chemical and mechanical testing
Manufacturing Process
How This Product Is Made
1Forging of round link blanks from carbon or alloy steel
2Heat treatment to achieve required hardness and tensile strength
3Machining of link ends to precise dimensions and tolerances
4Assembly of chain links with controlled tension and alignment
5Proof load testing on production batches
6Stamping of working load limit and traceability marks
7Surface finishing by zinc plating or powder coating if specified
8Final inspection and packing for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Material Test Certificate to EN 10204 3.1 issued with each order
- Third-party inspection accepted at the Qingdao warehouse before shipment
- Elongation and fatigue life data recorded and verified per standard
Customisation
Customisation Options
- Custom tonnage stamping on chain links
- Private label and OEM marking available
- Custom surface finish including zinc plating, powder coating, or electrophoretic black
- Chain lengths and configurations built to a supplied drawing
- Packing carton and pallet configuration tailored to customer warehouse or logistics needs
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 |
|---|---|
| Flat link chain | Round link chain has lower stress concentration and better fatigue life under repeated loading, but flat link chains may be lighter and easier to handle in some applications |
| Standard grade chain | High tension grade chains offer higher breaking loads and longer fatigue life but cost more and are heavier |
| Non-certified chain | Certified chains with EN 10204 3.1 MTC provide traceability and compliance for safety-critical mining use, while non-certified chains lack audit trail and liability coverage |
| Used or recycled chain | New high tension chain has consistent mechanical properties and no prior fatigue damage, unlike used chains which may have hidden defects or wear |
Use Guide
How To Use And Inspect High Tension Round Link Mining Chain
- Match the stamped safe working load to the actual line load, not the hoist or winch rating
- Inspect chain for deformation, wear, or elongation before each use
- Avoid side loading or sharp bending that can cause stress concentration
- Use only with compatible sprockets, sheaves, and end fittings designed for round link chains
- Retire chain if elongation exceeds 3% or if any link shows visible deformation
- Store in dry, covered conditions to prevent corrosion, especially in outdoor mining environments
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Answers
High Tension Round Link Mining Chain FAQ
What standards do these chains comply with?
Complies with GB/T12718-2009, PN-G-46701-1997, ISO-610-1990 (E), and DIN22252-2012 standards.
What quality grades are available?
Available in B, C, 2.C, PW9, C-Super, and D-3 grades for different duty levels and fatigue requirements.
Is a Material Test Certificate available?
Yes, a Material Test Certificate to EN 10204 3.1 is supplied with each order on request.
Can you customize the chain length or finish?
Yes, custom lengths, tonnage stamping, private label marking, and surface finishes like zinc plating or powder coating are available.
What is the design factor for these chains?
A standard 4:1 design factor, so the minimum breaking load is four times the stated safe working load.
How are the chains packed for export?
Standard cartons on pallets. We can configure packing to match your warehouse or retail pack. Free two-month storage in Qingdao warehouse is available for shipment consolidation.
What sizes are offered?
Sizes range from 14*50 to 42*152, with detailed dimensions and weights provided in the specification table.
Need A Quote On High Tension Round Link Mining Chain
Send the sizes, the finish and the quantity on WhatsApp or by email. You get a priced reply within 24 hours and a straight answer on stock.
We reply within 24 hours on WhatsApp or by email. Send a drawing, a photo or a bill of materials and we will quote it as it stands.