Roller Chains and Drag Chains
Roller Chains and Drag Chains are utilized in a wide range of applications. All chain components are heat-treated to achieve superior durability and extend service life. They are designed to offer enhanced flexibility for both horizontal and vertical conveying.
Share now:
What are Roller Chains & Drag Chains?
Roller Chains: These are power transmission or conveying chains that utilize rollers to minimize friction between the chain links and the driving sprockets. They are designed to efficiently transmit mechanical power in rotating systems, particularly within heavy industrial machinery.
Construction: The structure of a roller chain consists of inner and outer link plates, pins, bushings, and rollers.
Options: Depending on specific customer requirements, we offer simplex (single-strand), duplex (double-strand), or triplex (triple-strand) chains, as well as specialized models such as self-lubricating or corrosion-resistant variants.
Drag Chain: This is a type of conveying chain designed to transport bulk materials using scrapers or flights fixed directly onto the chain links, commonly employed in drag chain conveyor systems.
- Function: It efficiently transports loose materials such as cement, coal, ore, sand, plastic pellets, etc.
- Structure: The design typically features high-strength chain links combined with flights, engineered to operate within enclosed or open troughs.
- Performance: Capable of stable operation in high-temperature conditions and highly abrasive environments.
Roller chains and drag chains are ideally suited for harsh environments; their open structure facilitates the easy removal of coarse debris. These chains are widely utilized for conveying applications in the construction materials industry, as well as in drag chain systems for material transfer across both heavy and light industrial sectors.
Technical Specifications of Roller & Drag Chains
To explore specific technical details such as construction and manufacturing materials, please refer to the data table below:
| Feature | Roller Chain | Scraper Chain (Drag Chain) |
| Construction | Inner/Outer plates, pins, rollers | Load-bearing links + Scrapers (Flights) |
| Material | Heat-treated alloy steel, carbon steel, stainless steel | Cast steel, forged steel, or welded steel |
| Surface Treatment | Galvanized (Zinc-plated), heat treatment, powder coating | Anti-wear painting or surface hardening |
| Load Capacity | Medium to Very High | High; withstands heavy impact and high abrasion |
| Performance | High speed, high precision, efficient power transmission | Dusty environments, bulk materials, medium speed |
| Operating Temp. | -20°C to 250°C (depending on material) | Up to 800°C with special heat-resistant steel |
| Operation Mode | Rotary drive – engaging with sprockets | Linear conveying – inside enclosed or open troughs |
| Customization | Standardized (ANSI, ISO, BS); available in simplex, duplex, triplex… | Custom-designed based on load, material, trough type, or flight style |
Key Advantages of Roller Chains and Scraper Chains
Roller Chains:
- Stable Transmission: Ensures smooth operation with a long service life.
- Reduced Friction: Roller design minimizes friction, resulting in low wear.
- Easy Maintenance: Simple assembly and easy replacement procedures.
- Standard Compliance: Meets various international standards (ANSI, DIN, BS, etc.).
- Versatility: Suitable for use in clean environments as well as those with oil or light dust.
Drag Chains:
- Harsh Environment Capability: Engineered to operate in extreme heat, heavy dust, and corrosive conditions.
- Efficient Transport: Ensures safe and effective handling of bulk materials.
- Flexible Design: Tailored to operational requirements, supporting horizontal, inclined, or vertical conveying.
- High Durability: Robust construction allows for easy maintenance and segmental replacement.
- Industry Standard: Widely employed in cement plants, mining operations, and chemical industries.
Industrial Applications of Roller & Scraper Chains
Roller and Scraper Chains are widely applied across major industries, both domestically and internationally:
- Cement & Construction Materials: Scraper chains are used in conveyor systems, screw conveyors, and bucket elevators.
- Mining: Chains for transporting coal and ore in underground mines, screening stations, and crushing plants.
- Wood Processing: Roller chains utilized in presses, cutting machines, and wood peeling machines.
- Thermal Power: Coal feeding systems, ash and slag handling, and auxiliary material processing.
- Steel Industry: Drive chains for rolling mills, steel billet conveyors, and lubrication chains.
- Heavy Industry & Metallurgy: Transporting heavy loads in high-wear, high-dust, and high-temperature environments.
Roller chains and scraper chains are two indispensable mechanical transmission components in mechanical engineering and modern industrial manufacturing. Selecting the correct chain type not only ensures operational efficiency but also optimizes maintenance costs and extends equipment lifespan, thereby enhancing overall system productivity and reliability.
📞 Need a consultation on Roller Chains and Drag Chains for your factory?
We supply Roller Chains and Drag Chains for a wide range of equipment and industries. We provide complete technical documentation, product selection consulting, an official warranty, and comprehensive technical support for our customers.
📩 Contact us now for a free consultation!
A reputable and professional manufacturer and supplier of Roller Chains and Drag Chains
Focus Engineering Co., Ltd. specializes in providing advanced and modern Roller Chains and Drag Chains to meet all customer needs. With over 20 years of experience in the industry, we deliver comprehensive solutions that help businesses meet their production requirements.
With the core value ALL FOR A SUSTAINABLE ENVIRONMENT, we focus on the fields of Consulting – Designing – Fabricating – Installing and transferring technology for DUST FILTRATION SYSTEMS, INDUSTRIAL VALVES, BUCKET ELEVATORS, INDUSTRIAL FANS, SCREW CONVEYORS, CHAIN CONVEYORS, BELT CONVEYORS, TELESCOPIC SPOUTS, WEIGHING CONVEYOR and complete solutions for automatic weighing, bagging, and palletizing systems for industries such as cement, animal feed – aquaculture, chemical fertilizers, rice milling, etc.
In addition to manufacturing and fabrication, Focus also supplies technical and environmental equipment such as INDUSTRIAL BUCKET – BELT CONVEYORS, RUBBER CONVEYOR BELTS, INDUSTRIAL CONVEYOR CHAINS, AIR CANNONS, ROLLERS, CONVEYOR BELT CLEANERS, IMPACT BARS, DUST FILTRATION PRODUCTS, WET FILTRATION PRODUCTS, and OTHER PRODUCTS.
Furthermore, Focus Engineering Co., Ltd. – Focus Laser is a leading company in the field of sheet metal fabrication in Vietnam, with a modern equipment system and a team of experienced technicians. We specialize in providing laser cutting, bending, CNC punching, and manufacturing high-quality mechanical products. We are committed to delivering optimal mechanical solutions, meeting all technical requirements with superior quality.
With a quality management system certified to ISO 9001-2015 and a professional team of engineers and technicians, combined with technology transfer training cooperation from leading prestigious partners such as Martin Engineering – USA, Imeco – Italy, Stif – France, DongYang – South Korea, we are always committed to creating product lines and comprehensive solutions that best and most suitably meet all the requirements of our customers and partners.
Please visit our website for the most detailed information or contact:
FOCUS ENGINEERING Co., Ltd
Email: [email protected]
RELATED PRODUCTS
Contact for quote
