Premium Rotary Kiln Rims: Precision-Cast and Heat-Resistant

• Customization: Available
• Application: Metallurgical Parts
• Hardness: Hardened Tooth Surface
• Model NO.: Rotary Kiln Rim
• Gear Position: External Gear
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Curved Gear
• Material: 42CrMo
• Type: Circular Gear
• Transport Package: Wooden Box
• Specification: 1.8m
• Trademark: Bullis
• Origin: Shandong
• HS Code: 8414901900
• Production Capacity: 500PCS/Month

Product Description

Company Introduction:
Shandong Bullis Metallurgical Engineering Co., Ltd. is a subsidiary of Heze Shuanglong Metallurgical Machinery Group and is located in Shandong Province, China. Shuanglong Group is a leading large-scale industrial intelligent equipment manufacturing enterprise. It has a registered capital of 111.1 million yuan, more than 200,000 square meters of factory area, and more than 420

employees. The company's main business include equipment manufacturing, production line design, R&D, manufacturing, commissioning, operation and other engineering general contracting. The business segment involves metallurgy, building materials, chemical industry, environmental protection, new energy and other fields, providing customers with one-stop equipment and

engineering overall solutions.

Introduction to Rotary Kiln Rim

The Rotary Kiln Rim, also known as the tyre or riding ring, is a critical structural component of a rotary kiln system. It is mounted on the outer surface of the kiln shell and serves as the primary interface between the rotating kiln and the stationary support rollers (also known as riding rollers).

Function and Importance

1. Load Bearing
   The rim carries the full weight of the rotary kiln, including the shell, refractory lining, and the material being processed. It transfers this load to the support rollers, ensuring smooth rotation and mechanical stability.

2. Guidance and Alignment
   It maintains the alignment of the kiln by guiding its rotation along the support rollers. The rim also works in conjunction with thrust rollers to limit axial movement (creep) of the kiln.

3. Thermal Stress Compensation
   During operation, the kiln shell expands due to high temperatures. The rim is designed to allow slight relative movement (slipping) between itself and the kiln shell to relieve thermal stresses and prevent damage.

Material and Manufacturing

Rotary kiln rims are typically made of cast steel or alloy steel with high strength, good wear resistance, and excellent heat resistance. Common materials include ZG45CrMo or ZG42CrMo, depending on the operating environment and kiln size.

Precision machining and heat treatment are applied to ensure dimensional accuracy, surface hardness, and overall durability. The inner surface of the rim is carefully finished to match the kiln shell and allow for smooth thermal expansion.

Conclusion

As a vital load-transferring and stabilizing component, the rotary kiln rim plays a key role in the reliable operation and extended service life of rotary kilns used in cement, metallurgy, lime, and other industrial processes. Proper design, material selection, and maintenance of the rim are essential for the overall performance and efficiency of the kiln system.