Materials and Components
The roller body tubes are made from ERW (Electric Resistance Welded) high-frequency welded tubes, whilst the roller shafts are cold-drawn; both the tubing and shafts are manufactured from materials specifically designed for conveyor idler rollers.
Shaft diameter tolerances are strictly controlled within -0.01 mm to +0.01 mm to ensure precise bearing assembly.
Cut-to-length
Fully automatic tube and shaft cutting equipment is utilised to ensure consistent length dimensions for all tubular and shaft components.
Anti-corrosion Coating of Pipe Inner Walls
The inner walls of all idler roller pipes are treated with an anti-corrosion coating to prevent rusting and effectively extend the service life of the idler rollers.
End Face Milling of Shafts
After the shafts have been cut, specialised end-face machining equipment is used to perform precision milling on both ends of the shafts.
Tube Boring
Precision boring is performed at both ends of the tube using double-end boring equipment, ensuring the coaxiality accuracy of the bearing seats.
Flat Position Milling on Shafts
The critical dimension for roller installation is the flat position spacing; a four-cutter synchronous milling process is employed to ensure that the dimensions of all flat positions on the shafts are completely consistent.
Bearing Housing Welding
An integrated welding process is applied to both ends to ensure coaxiality, concentricity and centreline alignment of the bearing housings on both sides.
Precision Turning of the Roller Shaft
CNC lathes are used to machine the seal grooves, resulting in high precision and a smooth, polished surface.
Bearing and Seal Assembly
Bearings and seals are precision-fitted to the roller assembly.
Once assembly is complete, the unit proceeds to quality inspection and the overall painting process.

Durable Conveyor Pulley for Heavy-Duty Material Handling Systems

Durable Conveyor Pulley for Heavy-Duty Material Handling Systems Product Details Haihui Environmental Protection Equipment Co., Ltd. is a leading manufacturer of conveyor rollers, with products specifically designed for a wide range of material handling applications. Our conveyor rollers are meticulously engineered to ensure optimal performance, durability and reliability, even in the most demanding environments. With…

TD75 Belt Conveyor for High-Capacity Bulk Material Handling

TD75 Belt Conveyor for High-Capacity Bulk Material Handling Product Details Related Products

Conical Downward-Angled Center Idler Roll Set

Conical Downward-Angled Center Idler Roll Set Product Details Haihui Environmental Protection Equipment Co., Ltd. is a leading domestic manufacturer specialising in the research, development and production of conveyor rollers.We focus on various bulk material handling applications, providing fully customised roller solutions tailored to a wide range of material handling scenarios.All our conveyor rollers are engineered…

Steep Angle Belt Conveyor for High-Incline Bulk Material Transport

Steep Angle Belt Conveyor for High-Incline Bulk Material Transport Product Details Steep-angle belt conveyors are general-purpose continuous conveying systems for bulk materials, utilising conveyor belts with corrugated sidewalls. They are therefore particularly suitable for conveying at steep angles. Steep-angle belt conveyors can be used in industries such as coal, chemicals, building materials, metallurgy, power generation,…

Electrogalvanized Aluminum Idler Rollers for Belt Conveyor Systems

Electrogalvanized Aluminum Idler Rollers for Belt Conveyor Systems Product Details Haihui Environmental Protection Equipment Co., Ltd. supplies high-quality galvanised trough idler frames for belt conveyors. Our load-bearing idler frames are designed for reliability and smooth operation, ensuring efficient material handling. The idlers are galvanised to provide corrosion resistance, maintaining structural integrity even in harsh industrial…

Air Cushion Belt Conveyor with Non-Contact Support for Smooth Operation

Air Cushion Belt Conveyor with Non-Contact Support for Smooth Operation Product Details Haihui Group’s air-cushion belt conveyor features air chambers positioned beneath the conveyor belt. A blower supplies pressurised air to these chambers, and the gas flowing out through the air holes on the chamber surfaces forms an air film between the conveyor belt and…