Your Professional Air-Cooled Roller Conveyorr Supplier
Ma'anshan Henghang Metallurgical Machinery Components Co., Ltd., founded in 2016, is a specialized manufacturer of high-precision rolling mill components for the metallurgical industry.
The company’s core product portfolio encompasses acceleration rollers, pressure roller sleeves, lifting rollers, guide wheels, U-shaped idlers, side guide rollers, vertical rollers, conveyor roller sleeves, and variable-frequency drive rollers—engineered specifically for rolling small- and medium-diameter round bars and deformed (rebar) steel.
Why Choose us
Advanced Production Equipment
Our factory is equipped with over 30 sets of advanced manufacturing machines, including laser cladding systems, CNC lathes, machining centers, gantry milling machines, grinding machines, drilling equipment, CNC sawing machines, and industrial heat treatment furnaces, ensuring high-precision and efficient production.
24/7 Service Support
We provide strong manufacturing capability with a professional R&D team and offer 24-hour online sales and after-sales service to ensure fast response and customer support.
Quality Control System
We are certified under ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health & Safety Management System, ensuring strict quality control and reliable product performance.
Parameter
|
Item |
Specification |
|
Roller Outer Diameter |
165 mm (customizable) |
|
Inner Diameter |
80 mm |
|
Length |
150 mm (customizable) |
|
Cladding Thickness |
Customized according to working conditions |
Enhanced Product Quality and Consistency
The most significant benefit is the elimination of thermal inconsistencies. A roller with an optimized double-shell spiral design ensures the temperature is uniform across the entire face of the web. This eliminates defects like curling, puckering, uneven thickness, and cloudy patches in clear plastics.
Increased Production Speeds
Heat transfer is often the bottleneck in continuous web manufacturing. If a chill roller cannot extract heat fast enough, the entire production line must be slowed down to allow the material time to cool. Upgrading to high-efficiency cooling rollers allows operators to safely increase line speeds without compromising product quality, directly boosting daily output and profitability.
Substantial Reduction in Material Wastage
When temperatures fluctuate, the resulting product is often out-of-spec and must be scrapped. By maintaining absolute thermal stability, precision rollers drastically reduce scrap rates, saving thousands of dollars in raw material costs annually.
Energy Efficiency
Poorly designed hollow rollers require chillers and boilers to work overtime to push massive volumes of fluid to achieve desired surface temperatures. Rollers designed for turbulent flow transfer heat much more efficiently, reducing the energy load on your plant’s HVAC, chilling, and heating systems.
How Do Air-Cooled Roller Conveyorr Work
Fluid Entry: The fluid enters the rotating roller through a precision-engineered rotary joint (or rotary union) attached to the journal (the end shaft of the roller).
Internal Routing: Once inside, the fluid is forced to travel through a specifically designed internal cavity. The design of this cavity is the most critical factor in the roller’s performance.
Thermal Exchange: As the fluid touches the inner wall of the outer roller shell, thermal conduction occurs.
In a chill roller: The cold fluid absorbs the heat from the hot material touching the outside of the roller.
In a heat transfer roller: The hot fluid transfers its thermal energy through the steel shell to warm the material on the outside.
Fluid Exit: The now-warmed coolant (or cooled heating fluid) exits the roller through the opposite rotary joint (or a concentric pipe within the same joint) and returns to a chiller unit or boiler to be re-conditioned.
Application of Air-Cooled Roller Conveyorr
Plastics and Flexible Packaging Industry
This is arguably the largest sector utilizing chill rollers.
Cast Film Extrusion: Molten polymer is extruded onto a massive, highly polished, water-cooled chill roller. The rapid cooling freezes the molecular structure of the plastic, creating clear, strong films used in food packaging and stretch wrap.
Blown Film Extrusion: Secondary cooling rollers are used to stabilize the flattened plastic bubble before it is wound into rolls.
Lamination: Heat transfer rollers are used to melt adhesives or thermally bond multiple layers of plastic, aluminum foil, and paper together to create complex packaging materials (like juice boxes or coffee pouches).
Paper and Pulp Manufacturing
Calendering: Paper passes through a series of massive, heated rollers under extreme pressure. The heat transfer rollers iron the paper, making it smooth, glossy, and ready for high-quality printing.
Coating: When specialized coatings (like wax or clay) are applied to paper, temperature control rollers are used to cure or set the coating evenly.
Printing Industry
Web Offset & Flexography: Modern high-speed printing presses generate immense amounts of heat due to friction and the drying systems used to cure inks. Cooling rollers are strategically placed after the drying ovens to instantly cool the paper or plastic web, preventing the material from shrinking, wrinkling, or melting before it is rewound.
Textile and Non-Woven Manufacturing
Heat Setting: Synthetic fabrics (like polyester) must be heat-set to ensure they do not shrink when washed by the consumer. Heat transfer rollers apply precise, uniform heat to lock in the fabric’s dimensions.
Non-Wovens: Diapers, medical gowns, and wipes are often thermally bonded. Heated rollers with engraved patterns melt the synthetic fibers together at specific points.
Metal Foil Processing
Aluminum and copper foils require delicate thermal management during rolling and coating processes to prevent warping and ensure uniform thickness.
Certificate
Delivery Information
|
Item |
Description |
|
Shipping method |
Sea freight (FCL/LCL depending on order volume) |
|
Logistics route |
International sea shipping via port-to-port delivery |
FAQ
We're well-known as one of the leading air-cooled roller conveyorr manufacturers and suppliers in China, also support customized service. Please feel free to buy high quality air-cooled roller conveyorr made in China here from our factory. For price consultation, contact us.
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