Heavy-Duty Duplex Roller Chains for High-Load Systems
The Heavy-Duty Duplex Roller Chains are designed for applications demanding double the load capacity of standard single-row chains without compromising speed or efficiency. Featuring two parallel rows of rollers and bushings connected by a common pin, these chains offer enhanced power transmission in compact spaces, making them ideal for heavy machinery and high-torque drives.
Dual-Row Design: Doubles tensile strength (up to 160kN) while maintaining the same pitch as single-row chains, reducing drive system size by 30%.
Enhanced Stability: Wide inner plates and precision-ground pins minimize lateral movement, ensuring smooth operation at speeds up to 15m/s.
Corrosion Resistance: Optional zinc-nickel plating (8-12μm thickness) provides 500+ hours of salt spray resistance (ASTM B117), suitable for marine and offshore applications.
Lubrication Optimization: Deep roller grooves retain grease for longer intervals, reducing maintenance frequency by 40% compared to standard chains.
ANSI/ISO Compatibility: Meets ANSI B29.3 and ISO 1275 standards, ensuring seamless integration with international sprocket systems.
Construction Machinery: Powers excavator tracks, crane hoists, and compactor drives in rugged job sites.
Mining Equipment: Used in conveyor belts, rock crushers, and ore processing machinery requiring reliable high-load transmission.
Industrial Engines: Drives auxiliary systems in diesel generators, steam turbines, and large motors with consistent power transfer.
Automotive Manufacturing: Supports heavy-duty assembly line drives and robotic welding stations with minimal downtime.
Load Customization: Available in triple/quadruple row configurations for specialized ultra-high-load applications (up to 300kN tensile strength).
Advanced Testing: Dynamic load testing at 1.5x rated capacity for 1,000 hours to ensure fatigue resistance.
Eco-Friendly Coatings: Offer RoHS-compliant anti-corrosion treatments without heavy metals for sustainable industrial solutions.
Global Service Network: 5 regional warehouses in North America, Europe, and APAC for rapid delivery and local technical support.
| DIN/ISO CHAIN NO. | ANSI CHAIN NO. | Pitch | Roller diameter | Width between inner plates | Pin diameter | Pin length | Inner plate depth | Plate thickness | Transverse pitch | Ultimate tensile strength | Average tensile strength | Weight per meter | |
| DIN/ISO Cadena No | ANSI Cadena No | Paso | Diámetro rodillo | Ancho interior | Diámetro pasador | Longitud pasador | Altura placas | Ancho placas | Paso transversal | Resis.rotura | Resis. media tracción | Peso por metro | |
| P | d1 max | b1 min | d2 max | L max | Lc max | h2 max | T max | Pt | Q min | Qo | q | ||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | kN/LB | KN | kg/m | ||
| *35H-1 | 9.525 | 5.08 | 4.77 | 3.58 | 13.3 | 14.3 | 9.00 | 1.50 | - | 7.9/1795 | 10.8 | 0.41 | |
| 08AH-1 | 40H-1 | 12.700 | 7.95 | 7.85 | 3.96 | 18.8 | 19.9 | 12.00 | 2.03 | - | 14.1/3205 | 19.1 | 0.82 |
| 10AH-1 | 50H-1 | 15.875 | 10.16 | 9.40 | 5.08 | 22.1 | 23.4 | 15.09 | 2.42 | - | 22.2/5045 | 30.2 | 1.25 |
| 12AH-1 | 60H-1 | 19.050 | 11.91 | 12.57 | 5.94 | 29.2 | 31.0 | 18.00 | 3.25 | 31.8/7227 | 42.7 | 1.87 | |
| 16AH-1 | 80H-1 | 25.400 | 15.88 | 15.75 | 7.92 | 36.2 | 37.7 | 24.00 | 4.00 | 56.7/12886 | 71.4 | 3.10 | |
| 20AH-1 | 100H-1 | 31.750 | 19.05 | 18.90 | 9.53 | 43.6 | 46.9 | 30.00 | 4.80 | 88.5/20114 | 112.4 | 4.52 | |
| 24AH-1 | 120H-1 | 38.100 | 22.23 | 25.22 | 11.10 | 53.5 | 57.5 | 35.70 | 5.60 | 127.0/28864 | 160.9 | 6.60 | |
| 28AH-1 | 140H-1 | 44.450 | 25.40 | 25.22 | 12.70 | 57.6 | 62.2 | 41.00 | 6.40 | 172.4/39182 | 217.3 | 8.30 | |
| 32AH-1 | 160H-1 | 50.800 | 28.58 | 31.55 | 14.27 | 68.2 | 73.0 | 47.80 | 7.20 | 226.8/51545 | 285.8 | 10.30 | |
| 36AH-1 | 180H-1 | 57.150 | 35.71 | 35.48 | 17.46 | 75.9 | 81.6 | 53.60 | 8.00 | 281.0/63863 | 341.8 | 14.83 | |
| 40AH-1 | 200H-1 | 63.500 | 39.68 | 37.85 | 19.85 | 86.6 | 93.5 | 60.00 | 9.50 | - | 353.8/80409 | 444.5 | 19.16 |
| 48AH-1 | 240H-1 | 76.200 | 47.63 | 47.35 | 23.81 | 109.6 | 115.9 | 72.30 | 12.70 | 510.3/115977 | 622.5 | 30.4 | |
| 12AH-2 | 60H-2 | 19.050 | 11.91 | 12.57 | 5.94 | 55.3 | 57.1 | 18.00 | 3.25 | 26.11 | 63.6/14455 | 84.5 | 3.71 |
| 16AH-2 | 80H-2 | 25.400 | 15.88 | 15.75 | 7.92 | 68.8 | 70.3 | 24.00 | 4.00 | 32.59 | 113.4/25773 | 145.3 | 6.15 |
| 20AH-2 | 100H-2 | 31.750 | 19.05 | 18.90 | 9.53 | 82.7 | 86.0 | 30.00 | 4.80 | 39.09 | 177.0/40227 | 225.9 | 9.03 |
| 24AH-2 | 120H-2 | 38.100 | 22.23 | 25.22 | 11.10 | 102.4 | 106.4 | 35.70 | 5.60 | 48.87 | 254.0/57727 | 322.7 | 13.13 |
| 28AH-2 | 140H-2 | 44.450 | 25.40 | 25.22 | 12.70 | 109.8 | 114.4 | 41.00 | 6.40 | 52.20 | 344.8/78364 | 437.7 | 16.60 |
| 32AH-2 | 160H-2 | 50.800 | 28.58 | 31.55 | 14.27 | 130.1 | 134.9 | 47.80 | 7.20 | 61.90 | 453.6/103091 | 571.6 | 20.20 |
| 40AH-2 | 200H-2 | 63.500 | 39.68 | 37.85 | 19.85 | 164.9 | 171.8 | 60.00 | 9.50 | 78.31 | 707.6/160818 | 894.9 | 38.11 |
| 12AH-3 | 60H-3 | 19.050 | 11.91 | 12.57 | 5.94 | 81.4 | 83.2 | 18.00 | 3.25 | 26.11 | 95.4/21682 | 113.9 | 5.54 |
| 16AH-3 | 80H-3 | 25.400 | 15.88 | 15.75 | 7.92 | 101.4 | 102.9 | 24.00 | 4.00 | 32.59 | 170.1/38659 | 203.5 | 9.42 |
| 20AH-3 | 100H-3 | 31.750 | 19.05 | 18.90 | 9.53 | 121.8 | 125.1 | 30.00 | 4.80 | 39.09 | 265.5/60341 | 314.8 | 12.96 |
| 24AH-3 | 120H-3 | 38.100 | 22.23 | 25.22 | 11.10 | 151.2 | 155.2 | 35.70 | 5.60 | 48.87 | 381.0/86591 | 444.7 | 19.64 |
| 28AH-3 | 140H-3 | 44.450 | 25.40 | 25.22 | 12.70 | 162.0 | 166.6 | 41.00 | 6.40 | 52.20 | 517.2/117545 | 598.4 | 24.90 |
| 32AH-3 | 160H-3 | 50.800 | 28.58 | 31.55 | 14.27 | 192.0 | 196.8 | 47.80 | 7.20 | 61.90 | 680.4/154636 | 787.3 | 30.10 |
| 40AH-3 | 200H-3 | 63.500 | 39.68 | 37.85 | 19.85 | 243.2 | 250.1 | 60.00 | 9.50 | 78.31 | 1061.4/241227 | 1228.2 | 57.06 |
Heavy-Duty Duplex Roller Chains for High-Load Systems
The Heavy-Duty Duplex Roller Chains are designed for applications demanding double the load capacity of standard single-row chains without compromising speed or efficiency. Featuring two parallel rows of rollers and bushings connected by a common pin, these chains offer enhanced power transmission in compact spaces, making them ideal for heavy machinery and high-torque drives.
Dual-Row Design: Doubles tensile strength (up to 160kN) while maintaining the same pitch as single-row chains, reducing drive system size by 30%.
Enhanced Stability: Wide inner plates and precision-ground pins minimize lateral movement, ensuring smooth operation at speeds up to 15m/s.
Corrosion Resistance: Optional zinc-nickel plating (8-12μm thickness) provides 500+ hours of salt spray resistance (ASTM B117), suitable for marine and offshore applications.
Lubrication Optimization: Deep roller grooves retain grease for longer intervals, reducing maintenance frequency by 40% compared to standard chains.
ANSI/ISO Compatibility: Meets ANSI B29.3 and ISO 1275 standards, ensuring seamless integration with international sprocket systems.
Construction Machinery: Powers excavator tracks, crane hoists, and compactor drives in rugged job sites.
Mining Equipment: Used in conveyor belts, rock crushers, and ore processing machinery requiring reliable high-load transmission.
Industrial Engines: Drives auxiliary systems in diesel generators, steam turbines, and large motors with consistent power transfer.
Automotive Manufacturing: Supports heavy-duty assembly line drives and robotic welding stations with minimal downtime.
Load Customization: Available in triple/quadruple row configurations for specialized ultra-high-load applications (up to 300kN tensile strength).
Advanced Testing: Dynamic load testing at 1.5x rated capacity for 1,000 hours to ensure fatigue resistance.
Eco-Friendly Coatings: Offer RoHS-compliant anti-corrosion treatments without heavy metals for sustainable industrial solutions.
Global Service Network: 5 regional warehouses in North America, Europe, and APAC for rapid delivery and local technical support.
| DIN/ISO CHAIN NO. | ANSI CHAIN NO. | Pitch | Roller diameter | Width between inner plates | Pin diameter | Pin length | Inner plate depth | Plate thickness | Transverse pitch | Ultimate tensile strength | Average tensile strength | Weight per meter | |
| DIN/ISO Cadena No | ANSI Cadena No | Paso | Diámetro rodillo | Ancho interior | Diámetro pasador | Longitud pasador | Altura placas | Ancho placas | Paso transversal | Resis.rotura | Resis. media tracción | Peso por metro | |
| P | d1 max | b1 min | d2 max | L max | Lc max | h2 max | T max | Pt | Q min | Qo | q | ||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | kN/LB | KN | kg/m | ||
| *35H-1 | 9.525 | 5.08 | 4.77 | 3.58 | 13.3 | 14.3 | 9.00 | 1.50 | - | 7.9/1795 | 10.8 | 0.41 | |
| 08AH-1 | 40H-1 | 12.700 | 7.95 | 7.85 | 3.96 | 18.8 | 19.9 | 12.00 | 2.03 | - | 14.1/3205 | 19.1 | 0.82 |
| 10AH-1 | 50H-1 | 15.875 | 10.16 | 9.40 | 5.08 | 22.1 | 23.4 | 15.09 | 2.42 | - | 22.2/5045 | 30.2 | 1.25 |
| 12AH-1 | 60H-1 | 19.050 | 11.91 | 12.57 | 5.94 | 29.2 | 31.0 | 18.00 | 3.25 | 31.8/7227 | 42.7 | 1.87 | |
| 16AH-1 | 80H-1 | 25.400 | 15.88 | 15.75 | 7.92 | 36.2 | 37.7 | 24.00 | 4.00 | 56.7/12886 | 71.4 | 3.10 | |
| 20AH-1 | 100H-1 | 31.750 | 19.05 | 18.90 | 9.53 | 43.6 | 46.9 | 30.00 | 4.80 | 88.5/20114 | 112.4 | 4.52 | |
| 24AH-1 | 120H-1 | 38.100 | 22.23 | 25.22 | 11.10 | 53.5 | 57.5 | 35.70 | 5.60 | 127.0/28864 | 160.9 | 6.60 | |
| 28AH-1 | 140H-1 | 44.450 | 25.40 | 25.22 | 12.70 | 57.6 | 62.2 | 41.00 | 6.40 | 172.4/39182 | 217.3 | 8.30 | |
| 32AH-1 | 160H-1 | 50.800 | 28.58 | 31.55 | 14.27 | 68.2 | 73.0 | 47.80 | 7.20 | 226.8/51545 | 285.8 | 10.30 | |
| 36AH-1 | 180H-1 | 57.150 | 35.71 | 35.48 | 17.46 | 75.9 | 81.6 | 53.60 | 8.00 | 281.0/63863 | 341.8 | 14.83 | |
| 40AH-1 | 200H-1 | 63.500 | 39.68 | 37.85 | 19.85 | 86.6 | 93.5 | 60.00 | 9.50 | - | 353.8/80409 | 444.5 | 19.16 |
| 48AH-1 | 240H-1 | 76.200 | 47.63 | 47.35 | 23.81 | 109.6 | 115.9 | 72.30 | 12.70 | 510.3/115977 | 622.5 | 30.4 | |
| 12AH-2 | 60H-2 | 19.050 | 11.91 | 12.57 | 5.94 | 55.3 | 57.1 | 18.00 | 3.25 | 26.11 | 63.6/14455 | 84.5 | 3.71 |
| 16AH-2 | 80H-2 | 25.400 | 15.88 | 15.75 | 7.92 | 68.8 | 70.3 | 24.00 | 4.00 | 32.59 | 113.4/25773 | 145.3 | 6.15 |
| 20AH-2 | 100H-2 | 31.750 | 19.05 | 18.90 | 9.53 | 82.7 | 86.0 | 30.00 | 4.80 | 39.09 | 177.0/40227 | 225.9 | 9.03 |
| 24AH-2 | 120H-2 | 38.100 | 22.23 | 25.22 | 11.10 | 102.4 | 106.4 | 35.70 | 5.60 | 48.87 | 254.0/57727 | 322.7 | 13.13 |
| 28AH-2 | 140H-2 | 44.450 | 25.40 | 25.22 | 12.70 | 109.8 | 114.4 | 41.00 | 6.40 | 52.20 | 344.8/78364 | 437.7 | 16.60 |
| 32AH-2 | 160H-2 | 50.800 | 28.58 | 31.55 | 14.27 | 130.1 | 134.9 | 47.80 | 7.20 | 61.90 | 453.6/103091 | 571.6 | 20.20 |
| 40AH-2 | 200H-2 | 63.500 | 39.68 | 37.85 | 19.85 | 164.9 | 171.8 | 60.00 | 9.50 | 78.31 | 707.6/160818 | 894.9 | 38.11 |
| 12AH-3 | 60H-3 | 19.050 | 11.91 | 12.57 | 5.94 | 81.4 | 83.2 | 18.00 | 3.25 | 26.11 | 95.4/21682 | 113.9 | 5.54 |
| 16AH-3 | 80H-3 | 25.400 | 15.88 | 15.75 | 7.92 | 101.4 | 102.9 | 24.00 | 4.00 | 32.59 | 170.1/38659 | 203.5 | 9.42 |
| 20AH-3 | 100H-3 | 31.750 | 19.05 | 18.90 | 9.53 | 121.8 | 125.1 | 30.00 | 4.80 | 39.09 | 265.5/60341 | 314.8 | 12.96 |
| 24AH-3 | 120H-3 | 38.100 | 22.23 | 25.22 | 11.10 | 151.2 | 155.2 | 35.70 | 5.60 | 48.87 | 381.0/86591 | 444.7 | 19.64 |
| 28AH-3 | 140H-3 | 44.450 | 25.40 | 25.22 | 12.70 | 162.0 | 166.6 | 41.00 | 6.40 | 52.20 | 517.2/117545 | 598.4 | 24.90 |
| 32AH-3 | 160H-3 | 50.800 | 28.58 | 31.55 | 14.27 | 192.0 | 196.8 | 47.80 | 7.20 | 61.90 | 680.4/154636 | 787.3 | 30.10 |
| 40AH-3 | 200H-3 | 63.500 | 39.68 | 37.85 | 19.85 | 243.2 | 250.1 | 60.00 | 9.50 | 78.31 | 1061.4/241227 | 1228.2 | 57.06 |
