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Rotary Kiln Support Roller

Name: Cheap Rotary Kiln Support Roller Manufacturers & Supplier & Factory - Best Price Rotary Kiln Parts in Stock - Luoyang Yujie
Brand: Yogie
SKU: 91904148

A rotary kiln support roller is a critical component in a rotary kiln system. It's a cylindrical device that supports and helps rotate the kiln drum, which is used for processes like heating, drying, or chemical reactions. The support roller ensures smooth and stable rotation of the kiln and bears the weight of the kiln and its contents. It is a key part of industrial processes such as cement production, lime production, and various material processing operations.

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Description

Products Description

Rotary kiln support rollers are the core support components of a rotary kiln, consisting of roller bodies, shaft systems, bearing seats, and lubrication and sealing devices. As a key component of the heavy machinery load-bearing system, they bear the heavy load of the kiln body and materials through contact friction with the kiln shell. They can also correct the kiln's running trajectory by adjusting the installation angle and spacing, reducing shell sway vibration and ensuring smooth and continuous kiln rotation. This component is widely used in heavy industries such as building materials, metallurgy, and chemicals. It is an indispensable basic component in large rotary kiln equipment such as cement clinker calcining kilns, metallurgical mineral roasting kilns, and chemical kaolin calcining kilns, directly affecting the operational stability and service life of the rotary kiln.

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kiln support roller

rotary kiln support roller

Common materials

Material type	Core features	Applicable working conditions
45 gauge steel	It exhibits good overall mechanical properties, with a balanced strength and toughness after tempering.	Idler roller shafts for medium to light loads and low-temperature environments
ZG35CrMo cast steel	Excellent high-temperature strength, wear resistance and thermal fatigue resistance	Long-term service under high temperature conditions above 500℃
20CrMnTi alloy structural steel	Carburizing and quenching result in high surface hardness and good core toughness.	High-impact, high-wear idler roller surface
QT600-3 Ductile Iron	Excellent casting performance and shock absorption, with low cost.	Non-critical parts of the idler housing

Machinery Processing

rotary kiln roller processing

The preparation of the support roller blank is the first step. The roller body is formed using a casting process to ensure uniform internal structure; shaft parts are forged to improve material density and enhance load-bearing capacity. After completion, the castings and forgings undergo visual and internal defect inspection.

Next, the turning stage begins. According to the drawings, key parts such as the inner and outer circles and end faces of the roller body and shaft are precision-machined to ensure that the dimensional accuracy and surface roughness of each mating surface meet the standards, laying the foundation for subsequent assembly.

After turning, a heat treatment process is performed. Through controlled heating, heat preservation, and cooling, the idler roller achieves a good balance of strength and toughness, meeting the mechanical requirements of long-term rotary kiln operation.

Finally, heated assembly is carried out. The roller body is uniformly heated to induce thermal expansion, and then the shaft is quickly inserted into the roller body's assembly holes. After natural cooling, a tight fit is achieved, completing the core assembly process before the idler roller is delivered.

Work Principles

The work principle of support rollers is typically evenly arranged along the circumference of the kiln body, with the kiln cylinder resting directly on the roller surfaces. The rollers are connected to the base via bearings, forming a freely rotatable support structure.