Heavy Duty Series Roller Chains
Our Heavy Duty Series Roller Chains are engineered to excel in extreme load-bearing, high-torque, and harsh operating environments, serving as the backbone of power transmission for heavy industrial applications. Compliant with stringent international standards such as ISO 606 (A/B series) and ANSI B29.1, this series integrates reinforced structural design, premium alloy materials, and advanced heat treatment processes to deliver exceptional tensile strength, impact resistance, and long-term durability. Widely adopted in mining, construction, heavy machinery, and port equipment, they ensure reliable performance even under continuous heavy-load operation, minimizing downtime and maximizing operational efficiency.
Core Features & Technical Advantages
1. Superior Load-Bearing Capacity & Tensile Strength
Built for heavy-duty scenarios, the chains feature thickened high-grade alloy steel link plates, precision-forged pins, and hardened bushings that significantly enhance ultimate tensile strength and yield strength. The optimized cross-sectional design of components distributes load evenly, enabling the chains to withstand extreme static and dynamic loads—far exceeding standard roller chains. Available in single-row, double-row, and triple-row configurations, the series covers a wide range of load requirements, with ultimate tensile strength ranging from 120kN to 800kN to match diverse heavy-industry needs.
2. Enhanced Wear & Impact Resistance
To combat wear and impact in harsh working conditions, each component undergoes a multi-stage heat treatment process (carburizing, quenching, and tempering), achieving a high surface hardness and core toughness balance. The rollers are precision-ground to ensure smooth operation and reduce friction, while the link plates adopt a shot-peening treatment to improve fatigue resistance. Additionally, a specialized anti-wear coating and high-performance lubricant are applied to extend service life, even in dusty, abrasive, or high-temperature environments.
3. Robust Structural Design for Stability
The Heavy Duty Series features a tight component fit and optimized pitch accuracy, ensuring seamless engagement with sprockets and eliminating jitter or slippage during high-torque transmission. The chains are equipped with reinforced connecting links (spring clips or cotter pins) to prevent disconnection under heavy loads, enhancing operational safety. For extreme vibration scenarios, optional shock-absorbing roller designs are available to minimize impact damage and maintain stable performance, making them suitable for equipment operating on uneven terrain.
4. Versatile Adaptability to Harsh Environments
Engineered to withstand the harshest industrial conditions, the chains offer excellent corrosion resistance through multiple surface treatment options—including zinc plating, nickel plating, and hot-dip galvanizing—effectively protecting against moisture, chemicals, and outdoor exposure. They perform reliably in extreme temperatures ranging from -40℃ to 200℃ and resist contamination from dust, gravel, and industrial debris. The series is fully compatible with mainstream heavy machinery brands, supporting direct replacement and customized modifications to fit specific equipment models and operational demands.
Application Fields
With its rugged design and exceptional load-handling capabilities, the Heavy Duty Series Roller Chain is widely used in:
Mining industry: Applied in mine hoists, conveyor systems, and crushing equipment, enduring abrasive materials and heavy loads in underground and open-pit mines.
Construction machinery: Used in excavators, bulldozers, and cranes, transmitting power for heavy lifting, digging, and material handling operations.
Port & logistics: Adapted to container cranes, gantry cranes, and bulk material conveyors, withstanding continuous high-torque transmission in port terminals.
Heavy industrial equipment: Integrated into steel mills, cement plants, and foundry machinery, resisting high temperatures and harsh working conditions.
Why Choose Our Heavy Duty Series Roller Chains?
We adhere to strict quality control throughout the production process, from raw material selection to finished product delivery. Each batch of chains undergoes rigorous testing—including non-destructive testing, tensile strength testing, and wear resistance evaluation—to meet or exceed OEM standards. We offer customized solutions based on specific load requirements, operating environments, and equipment models, paired with professional technical consulting, on-site installation guidance, and efficient after-sales support. Our Heavy Duty Series Roller Chains are designed to deliver long service life and reliable performance, helping industrial enterprises reduce maintenance costs and maximize operational efficiency.
English 
Español 
العربية 
Français 
Русский 
Português 
Deutsch 
italiano 
日本語 
한국어 
Nederlands 
Tiếng Việt 
ไทย 
Polski 
Türkçe 
አማርኛ 
ພາສາລາວ 
ភាសាខ្មែរ 
Bahasa Melayu 
ဗမာစာ 
தமிழ் 
Filipino 
Bahasa Indonesia 
magyar 
Română 
Čeština 
Монгол 
қазақ 
Српски 
हिन्दी 
فارسی 
Kiswahili 
Slovenčina 
Slovenščina 
Norsk 
Svenska 
українська 
Ελληνικά 
Suomi 
Հայերեն 
עברית 
Latine 
Dansk 
اردو 
Shqip 
বাংলা 
Hrvatski 
Afrikaans 
Gaeilge 
Eesti keel 
Māori 
සිංහල 
नेपाली 
Oʻzbekcha 
latviešu 
অসমীয়া 
Aymara 
Azərbaycan dili 
Bamanankan 
Euskara 
Беларуская мова 
भोजपुरी 
