Anhui Huihuang Chain Transmission Co., Ltd. is one of the leading manufacturers and suppliers of 12 double row top roller chain in China, featured by quality products and good service. If you're going to wholesale advanced 12 double row top roller chain made in China, welcome to get pricelist and free sample from our factory. We also accept customized orders.
Basic Structure
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Chain Base Built on standard 12A double-strand roller chain, assembled with double-row inner plates, outer plates, sleeves, rollers and pins. Heat-treated carbon steel or stainless steel optional. Matches standard 12A sprockets with excellent interchangeability.
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Top Support Rollers Cylindrical support rollers are mounted upward on outer link plates, protruding above the chain plate surface. Rollers slide along the conveyor guide rail during operation and bear the load instead of link plates.
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Hinge Assembly Through pins connect double chain strands with precise clearance. Independent rotating rollers ensure flexible movement and low friction
Core Structural Features
- Top Roller Bearing Structure Load is carried by top rollers. Link plates are separated from guide rails to avoid direct abrasion and extend service life.
- Higher Load Capacity of Double Strand Greater tensile strength than single-row chains, suitable for continuous medium-heavy load conveying.
- Compatible with Standard 12A Sprockets Standard 12A transmission structure; no customized driving sprockets required, easy spare parts sourcing.
- Low Running Resistance Rolling friction reduces power consumption, delivering smooth and low-noise operation.
- Flexible Customization Heat-treated carbon steel, 304 / 316 stainless steel available. Roller diameter, height and installation spacing can be customized.
Application
Automated pallet conveying lines, machine tool loading & unloading, carton packaging transport, warehouse conveyor branches, tunnel drying lines. Ideal for equipment requiring upper-side load support with chain suspended above the frame rail.
Summary of Advantages
- Top rollers protect link plates and greatly reduce chain abrasion
- Standard 12A double-strand design provides sufficient load capacity and wide versatility
- Rolling support lowers friction, energy consumption and operation noise
- Multiple material options for normal temperature, humid and mild corrosive environments
- Universal matching sprockets cut equipment retrofitting and spare part costs
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