描述
EP重型双滚子链
Our heavy duty double roller chain incorporates dual roller arrays that distribute loads across multiple contact points, delivering superior performance compared to traditional single roller chain designs. The duplex roller chains configuration enables transmission of substantially higher torques while maintaining compact installation envelopes, making them the preferred solution for applications where space constraints and heavy-duty operational requirements intersect. The double roller chain design incorporates precision-engineered components manufactured to rigorous quality standards ensuring consistent performance across diverse industrial environments. Each link features optimized geometry providing smooth engagement with sprocket teeth while distributing mechanical stresses uniformly across chain components. The heavy duty series roller chains employ advanced metallurgy and heat treatment processes producing chains with exceptional tensile strength, fatigue resistance, and wear durability.
1. Technical Specifications of double roller chain
| Double Roller Chain Model (ISO/ANSI) | 螺距（毫米） | Roller Diameter (mm) | Plate Width (mm) | Pin Diameter (mm) | 引脚长度（毫米） | Inner Plate Depth (mm) | Plate Thickness (mm) | Tensile Strength (kN) | Weight/Meter (kg/m) |
|---|---|---|---|---|---|---|---|---|---|
| 60H-2 | 19.050 | 11.91 | 12.57 | 5.94 | 55.3 | 18.00 | 3.25 | 63.6 | 3.71 |
| 80H-2 | 25.400 | 15.88 | 15.75 | 7.92 | 68.8 | 24.00 | 4.00 | 113.4 | 6.15 |
| 100H-2 | 31.750 | 19.05 | 18.90 | 9.53 | 82.7 | 30.00 | 4.80 | 177.0 | 9.03 |
| 120H-2 | 38.100 | 22.23 | 25.22 | 11.10 | 102.4 | 35.70 | 5.60 | 254.0 | 13.13 |
| 140H-2 | 44.450 | 25.40 | 25.22 | 12.70 | 109.8 | 41.00 | 6.40 | 344.8 | 16.60 |
| 160H-2 | 50.800 | 28.58 | 31.55 | 14.27 | 130.1 | 47.80 | 7.20 | 453.6 | 20.20 |
| 180H-2 | 57.150 | 35.71 | 35.48 | 17.46 | 146.5 | 53.60 | 8.00 | 562 | 29.20 |
| 200H-2 | 63.500 | 39.68 | 37.85 | 19.85 | 164.9 | 60.00 | 9.50 | 707.6 | 38.11 |
| 240H-2 | 76.200 | 47.63 | 47.35 | 23.81 | 212.6 | 72.30 | 12.70 | 1000 | 60.50 |
| Tensile Standard | ANSI/ISO | Precision Manufactured | Certified | Quality Controlled | Shot Peened | Optimized Hardening | Superior Heat Treat | Fatigue Tested | Weight Accurate |
| 材料等级 | Alloy Steel | Precision Ground | Optimal Geometry | Hardened Grade | Shot Peened | Heat Treated | Corrosion Resistant | Wear Resistant | Durable |
| 润滑类型 | Oil Bath/Mist | Synthetic Available | Low Viscosity | High Viscosity | Temperature Range | -30 to +100°C | Biodegradable Option | Water Resistant | Rust Protection |
| Operational Features | Dual Roller Array | Multi-Point Engagement | Load Distribution | Stress Reduction | Fatigue Resistant | Extended Life | Smooth Operation | Reliable Performance | Proven Design |
| 服务寿命 | 50,000+ hours | Continuous Duty | Intermittent Service | Heavy Shock Loads | Optimal Lubrication | Proper Alignment | Regular Maintenance | Professional Install | Quality Assured |
| Surface Finish | Black Duplex Standard | Stainless Optional | Zinc Plated | Nickel Plated | Paint Coated | Corrosion Protection | Salt Spray Resistant | UV Resistant | Long-lasting |
| Installation Type | Standard Link | Connecting Link | Offset Link Option | Custom Length | Quick Connect | Master Link Available | Sprocket Compatible | Easy Replacement | Field Serviceability |
| Certification Status | ISO 9001认证 | ANSI Compliant | DIN Standards Met | Third Party Tested | Tensile Certified | Fatigue Verified | Quality Documented | Performance Proven | Industry Approved |
2. Five key product advantages of the double roller chain
Exceptional Load Carrying Capacity
The heavy duty double roller chain delivers significantly higher load-bearing capacity compared to conventional single roller chain configurations, enabling applications requiring extreme torque transmission with reliability. The dual roller design distributes forces across multiple engagement points simultaneously, reducing stress concentration and extending component service life. Tensile strength ratings extend across the entire duplex roller chains size range from 60H-2 models delivering 63.6 kN up to 240H-2 configurations achieving 1000 kN of tensile strength. This extraordinary load capacity enables transmission of power from compact prime movers to heavy driven equipment without requiring oversized mechanical systems. The heavy duty series roller chains maintain consistent tension distribution eliminating shock loads that would stress inferior chain designs, protecting connected equipment and extending overall system reliability.
Superior Wear Resistance and Extended Service Life
The duplex roller chain incorporates precision-engineered roller components and advanced pin-bushing bearing designs that minimize friction and wear during extended continuous operation. Shot peening of individual chain components creates compressive stress in surface layers significantly improving fatigue resistance and durability under cyclic loading. The optimized hardening process combined with superior heat treatment and hardness depth produces chains capable of exceeding 50,000 operational hours in many industrial applications. The replacement duplex roller chains maintain original equipment performance specifications ensuring seamless integration into existing drive systems. Advanced material selection including optimized carbon content and alloying elements provides the foundation for exceptional wear characteristics and reliable long-term performance in demanding operational environments.
Precision Manufacturing and Consistent Quality
Every double roller chain manufactured undergoes rigorous dimensional verification and quality inspection procedures ensuring consistent interchangeability and proper sprocket engagement. The duplex roller chains are produced using computer-controlled machinery that maintains exacting tolerances across critical dimensions including pitch, roller diameter, plate thickness, and overall link geometry. Material certification and chemical composition analysis confirm that each chain batch meets or exceeds international standards including ISO specifications and ANSI requirements. Tensile testing validates that breaking strength exceeds minimum specifications with adequate safety factors for the intended application. The rolling and fatigue testing procedures confirm that chains perform reliably under simulated operational conditions before shipment to customers, providing confidence in product reliability and performance.
Versatile Application Compatibility and Adaptability
The heavy duty series roller chains accommodate diverse applications including conveyor systems, industrial drive trains, agricultural equipment, hoisting mechanisms, and processing machinery requiring reliable power transmission. Standard duplex roller chains size designations follow ISO nomenclature enabling straightforward identification and specification of replacement chains for equipment maintenance and upgrade projects. Multiple pitch configurations from 60H-2 compact designs to 240H-2 heavy-duty models accommodate sprocket tooth engagement across varied equipment types and installation geometries. The black duplex roller chains standard finish provides corrosion protection suitable for most industrial environments, while stainless steel and specialty surface treatments address harsh operating conditions including saltwater exposure, chemical processing environments, and high-temperature applications. Custom configurations accommodate non-standard pitch requirements and specialized applications requiring engineering consultation.
Cost-Effective Long-Term Ownership Value
While initial acquisition cost represents one factor in chain selection, the heavy duty double roller chain delivers exceptional value through extended service life reducing replacement frequency and associated downtime expenses. The superior wear resistance minimizes tensile stress and elongation that necessitate frequent chain adjustments or premature replacement in inferior designs. Reduced lubrication requirements compared to some alternative chain configurations lower maintenance expenses and environmental impact. The reliable performance characteristic of heavy duty series roller chains reduces unexpected failures that interrupt production operations and create emergency replacement situations incurring expedited shipping and emergency labor costs. Bulk purchasing opportunities for replacement duplex roller chains provide additional cost advantages for organizations maintaining large equipment fleets requiring periodic chain replacements.
3. Double Roller Chain Working Principle
The double roller chain operating principle relies on mechanical engagement between chain links and sprocket teeth, enabling power transmission through direct mechanical contact with minimal slip characteristics. The dual roller design incorporates two rows of cylindrical rollers arranged perpendicular to the chain strand, engaging sequentially with sprocket teeth as the chain travels around the sprocket circumference. This configuration distributes engagement forces across multiple roller contact points simultaneously, reducing instantaneous stress concentration compared to single roller chain where all engagement force concentrates on one roller at any given moment. The pin-bushing bearing interface permits rolling motion between rollers and chain pins during sprocket engagement, minimizing friction and wear compared to sliding contact designs. The heavy duty series roller chains maintain constant velocity transmission as long as sprocket teeth properly engage chain rollers, providing smooth torque delivery essential for precision equipment and vibration-sensitive applications. The duplex roller chain geometry ensures that both roller rows engage sprocket teeth simultaneously, distributing loads equally across both engagement arrays. The sophisticated tooth profile optimization on modern sprockets maximizes the bearing surface area during engagement, distributing contact stresses over larger surface areas and extending component service life. Superior lubrication film maintenance between rollers and sprocket teeth, combined with the optimized roller diameter and bearing surface characteristics, reduces friction losses and heat generation during extended continuous operation, contributing to improved power transmission efficiency.
4. Double Roller Chain Material Composition and Manufacturing Excellence
The heavy duty double roller chain incorporates premium alloy steel materials carefully selected for exceptional tensile strength, fatigue resistance, and wear durability essential for demanding industrial applications. The plate materials undergo rigorous chemical composition analysis confirming precise carbon content, manganese concentration, and trace element levels that contribute to superior mechanical properties. Heat treatment procedures follow optimized parameters that produce hardened plate surfaces while maintaining adequate core toughness preventing brittle fracture under shock loading conditions. The pin and bushing components receive specialized hardening processes producing hardness gradients that maximize wear resistance while preserving core ductility. Shot peening of all chain components creates compressive stresses in surface layers that dramatically improve fatigue strength and extend service life under cyclic loading. The rollers undergo precision grinding to achieve specified diameters and surface finishes promoting smooth engagement with sprocket teeth and minimizing wear rates. Material traceability procedures track every batch from steel mill through completion, providing documentation of chemical composition, mechanical properties, and heat treatment parameters. The duplex roller chains manufactured following these rigorous standards deliver exceptional reliability and performance that inferior products cannot match. Quality control testing includes tensile strength verification, elongation measurements, fatigue cycling evaluation, and visual inspection for manufacturing defects. Every replacement duplex roller chains unit shipped undergoes final quality verification ensuring that customers receive products meeting exacting specifications and performance standards.
5. Application Scenarios and Industrial Solutions
The heavy duty series roller chains address power transmission requirements across diverse industrial sectors where reliability and durability are absolutely critical to operational success and profitability.
Agricultural and Farm Equipment
Farm machinery including combine harvesters, hay balers, grain augers, and crop conveying systems rely on double roller chain for dependable power transmission in field conditions and grain handling operations. The heavy duty series roller chains withstand shock loads from crop material feeding and variable speed operations characteristic of harvest season demands. Colombian agricultural regions producing coffee, sugar cane, and other crops benefit from the reliability and extended service life of replacement duplex roller chains designed for tropical climates and high-humidity environments.
Mining and Mineral Processing
Underground and surface mining operations employ duplex roller chains in conveyor systems, ore crushing equipment, and material handling mechanisms requiring exceptional load capacity and reliability. The dual roller design distributes shock loads from ore fragmentation and tumbling operations across multiple engagement points, protecting both chain and connected equipment. The black duplex roller chains finish provides adequate corrosion protection in damp mining environments, while specialized stainless configurations address high-humidity conditions in underground operations.
Marine and Shipping Applications
Maritime equipment including cargo handling systems, anchor windlasses, and propulsion machinery employ heavy duty double roller chain where saltwater exposure and demanding operational conditions require superior corrosion resistance and fatigue strength. The what is a roller chain question in marine environments emphasizes requirements for reliable operation under high humidity, salt spray exposure, and continuous duty cycles characteristic of ocean-going vessel operations. Stainless steel and specialty coating options address corrosive saltwater environments extending service life significantly beyond standard black duplex roller chains.
Industrial Manufacturing and Assembly Lines
Production facilities requiring consistent power transmission employ double roller chain in conveyor systems, material transfer equipment, and production line machinery requiring smooth operation and minimal downtime. The superior wear characteristics and extended service life reduce maintenance frequency and enable longer production runs without replacing chains. The heavy duty series roller chains accommodate elevated operating speeds while maintaining acceptable noise levels suitable for manufacturing environments with noise restrictions.
Food Processing and Beverage Production
Food manufacturing facilities process agricultural products in conveyor systems, cutting equipment, and material handling machines where hygienic operation and wash-down capability are essential. The replacement duplex roller chains available in stainless steel materials comply with food industry sanitation requirements and resist corrosion from cleaning chemicals and acidic food materials. The superior fatigue resistance accommodates frequent start-stop operations and variable speed adjustments characteristic of food production facility operations.
Heavy Equipment and Construction Machinery
Construction equipment including wheel loaders, track-type tractors, and excavators employ heavy duty double roller chain in drive systems requiring exceptional load capacity and shock resistance. The dual roller design distributes forces from digging and material handling operations across multiple engagement points, protecting expensive transmission components and extending equipment service life. The what is double pitch roller chain question in construction contexts emphasizes spacing and engagement characteristics optimized for extended pitch designs accommodating large sprockets and varied drive geometry.
6. Regulatory Compliance and International Standards
The heavy duty double roller chain manufactured and distributed for use in Colombian and international markets complies with comprehensive sets of international standards, regional regulations, and industry-specific requirements governing mechanical power transmission equipment. In Colombia specifically, industrial machinery must conform to NTC (Normas Técnicas Colombianas) standards that align with ISO international specifications while addressing local operational requirements and safety considerations. The Colombian Ministry of Labor establishes occupational safety regulations requiring proper equipment guarding, maintenance procedures, and worker training addressing rotating equipment hazards including chain systems. Environmental regulations administered by the Colombian Ministry of Environment address noise emissions from industrial equipment with chain drive systems subject to workplace noise level limits protecting worker hearing during extended exposure. Equipment serving agricultural applications must comply with Colombian farm equipment safety regulations addressing operator protection and equipment reliability during harvest operations. The duplex roller chains size specifications conform to ISO 606 international standards ensuring interchangeability and proper sprocket engagement across equipment from different manufacturers. ANSI standards address American market requirements while DIN standards serve European and international installations. Third-party testing and certification procedures verify that chains meet specified tensile strength, elongation, and fatigue performance standards before distribution to customers. Documentation accompanying each order provides evidence of compliance with applicable standards and provides maintenance guidance for proper equipment operation.
7. Manufacturing Expertise and Quality Assurance
Our manufacturing operations combine state-of-the-art production equipment, skilled engineering personnel, and comprehensive quality management systems delivering double roller chain products of exceptional quality and reliability. The production facility encompasses precision chain manufacturing equipment, heat treatment furnaces, shot peening systems, and comprehensive testing laboratories verifying product performance specifications. CNC machining centers produce plate and pin components to exacting tolerances ensuring consistent interchangeability and proper sprocket engagement. Heat treatment procedures follow carefully controlled parameters producing optimal hardness and fatigue resistance characteristics. Tensile testing equipment verifies that manufactured chains meet or exceed specified strength ratings with adequate safety factors. Fatigue testing procedures simulate extended operational life validating reliability under cyclic loading conditions expected in customer applications. The technical team includes mechanical engineers specializing in power transmission design, material scientists optimizing alloy selections and heat treatment procedures, and quality specialists implementing statistical process control methodologies. ISO 9001 certification demonstrates conformance to international quality management standards with documented procedures governing every aspect of chain design, manufacturing, inspection, and customer service. Environmental management systems following ISO 14001 guidelines minimize manufacturing waste and environmental impact. This comprehensive commitment to manufacturing excellence ensures that every heavy duty series roller chain meets demanding quality standards and delivers reliable performance throughout its operational service life.
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8. Complementary Power Transmission Products
Beyond our comprehensive heavy duty double roller chain product portfolio, we manufacture complementary power transmission components enabling complete drive system solutions from a single integrated supplier. This comprehensive approach enables customers to source complete drive systems including chains, sprockets, and gearing components that function together as optimized integrated systems.
Precision-Engineered Sprockets
Our extensive sprocket manufacturing produces components optimized for engagement with duplex roller chains across the complete size range. Tooth profile optimization ensures smooth engagement minimizing noise and wear while distributing contact stresses over maximum bearing surfaces. Material selection including alloy steels and cast iron accommodates various load requirements and operating conditions. Custom sprocket designs address non-standard applications and special equipment requirements enabling tailored drive system solutions.
Industrial Gearing Solutions
The gear product division manufactures spur, helical, bevel, and worm gears for diverse power transmission applications. Precision manufacturing and advanced heat treatment processes produce gears with exceptional fatigue strength and wear resistance. Custom designs accommodate unique application requirements and performance specifications. Integration of chain and gear components enables complete power transmission system optimization where chain delivers power to gearbox input shafts requiring precise torque and speed conversion characteristics.
常见问题解答
Q1. What distinguishes heavy duty double roller chain from standard simplex roller chain designs?
The heavy duty double roller chain incorporates two parallel roller arrays that engage sprocket teeth simultaneously, distributing loads across multiple contact points compared to simplex designs where single rollers engage one sprocket tooth per engagement cycle. This dual roller configuration enables transmission of significantly higher torques while reducing stress concentration and extending component service life. The superior load distribution characteristic of heavy duty series roller chains makes them the preferred choice for demanding applications requiring maximum reliability and extended service intervals.
Q2. What factors determine optimal heavy duty double roller chain selection for mining and conveyor applications?
Selection of heavy duty double roller chain requires analysis of operating speed, load magnitude, duty cycle intensity, environmental conditions, and installation geometry. Tensile strength requirements depend on maximum loads including shock factors applicable to the specific application. Operating speed considerations address potential resonance frequencies and critical speed limitations. Environmental factors including moisture, chemical exposure, and temperature extremes influence material and coating selections. The black duplex roller chains standard finish suits most industrial environments while stainless and specialty coatings address harsh conditions. Professional engineering analysis ensures selection of chains optimally suited to application requirements.
Q3. What is a duplex anchor chain and how does it differ from heavy duty roller chain applications?
The term duplex anchor chain refers to maritime equipment deployed in ship mooring systems where dual anchor arrangements provide redundancy and security during vessel anchoring operations. While duplex denotes dual components in both contexts, the what is a duplex anchor chain question addresses marine applications while heavy duty double roller chain serves industrial power transmission requirements. Understanding nomenclature distinctions prevents confusion when sourcing appropriate equipment for specific maritime or industrial applications.
Q4. How does roller duplex configuration improve equipment reliability compared to simplex alternatives in Colombian manufacturing facilities?
The roller duplex configuration distributes operational loads across dual roller arrays reducing stress concentration and extending component service life significantly. The superior load distribution reduces wear rates and fatigue damage enabling longer intervals between chain replacement cycles. Reduced maintenance frequency translates to lower operational costs and improved production uptime particularly valuable in manufacturing environments where equipment failures interrupt production schedules and generate substantial economic consequences.
Q5. What is double pitch roller chain and when should it be specified versus standard pitch configurations?
Double pitch roller chain incorporates twice the standard pitch distance between roller centers, enabling use of larger diameter sprockets and reduced speed ratios. The what is double pitch roller chain applications include low-speed power transmission, extended center-to-center distances, and situations where compact sprockets would create unacceptable limitations. Standard pitch configurations address higher-speed applications and situations where compact drive designs are advantageous. Professional engineering analysis determines optimal pitch selection for specific application requirements.
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