Vertical Mill Grinding Roller Shell
Vertical Mill Grinding Roller Shell
The grinding roller shell is one of the critical components of a vertical roller mill, it is responsible for bearing the pressure of the grinding roller and working together with the grinding table to grind the material. The roller shell is mounted onto the grinding roller hub, typically utilizing a tapered-fit structure to facilitate ease of installation, removal, and replacement, and its main function is to protect the grinding roller from damage while ensuring the vertical mill’s smooth operation through efficient grinding performance.
As a consumable wear part, it is subjected to prolonged, high-intensity impact, compressive stress, and abrasion, Therefore, it demands exceptionally high standards regarding material hardness, toughness, and heat treatment processes. The design of the vertical roller mill roller shell is pivotal not only to the equipment’s stability and service life but also to the grinding efficiency and the quality of the final product. BOPENG casting grinding roller shell is typically manufactured from wear-resistant alloy steel or specialized materials, these roller sleeves possess exceptional wear resistance and impact strength, making them ideally suited for high-load production environments.
Technical Specifications
|
Parameter |
Description |
|---|---|
|
Material |
ZG35Mn, ZG270-500, and other customized material |
|
Surface Hardness |
HRC≥58 |
|
Diameter Range |
500mm to 2500mm |
|
Thickness Range |
300mm to 1000mm |
|
Weight |
>1ton |
|
Applicable Materials |
Brittle materials with a Mohs hardness of <7, such as cement raw meal, pulverized coal, slag, limestone, and iron ore. |
|
Structure |
Cylindrical, conical, annular, and other structural configurations. |
|
Heat Treatment |
Multiple processes including normalizing, tempering, and quenching |
Technical Features

Advanced Materials
BOPENG widely used alloy steels containing elements such as chromium (Cr), molybdenum (Mo), and nickel (Ni), and the surface hardness typically reaches HRC ≥ 58.

High-Strength Structure
Features a tapered interference-fit design to ensure a secure and robust connection with the roller hub, ensures that the casting roller shell can withstand prolonged, heavy-load operating conditions without succumbing to deformation.

High-Efficiency Grinding
The intelligently design of surface profile ensures a tight, precise fit with the grinding table, thereby boosting grinding efficiency and reducing energy consumption.

Reliable Sealing
Using a centralized lubrication system with a multi-layer sealing structure to prevent dust ingress into the bearing system, thereby ensuring operational stability.
Why choose BOPENG?
20 Years of Professional Steel Casting Manufacturing Strength
BOPENG possesses 20 years of experience in the production of cast steel spare parts, and continuously upgrading our manufacturing techniques and optimizing our service systems. We employ advanced manufacturing processes to produce large steel casting products that are high in strength, wear-resistant, and have a long service life. We have a team of experienced engineers who use the latest modeling software to design and manufacture the steel cast parts to your specifications.
Strict Full-Process Quality Assurance & ISO Certification
We consistently prioritize the procurement of high-quality steel raw materials, establishing close cooperative relationships with premium suppliers. Furthermore, we conduct a comprehensive series of compositional analyses on these materials to ensure they meet all requisite quality standards. Concurrently, our quality control measures are integrated throughout the entire production lifecycle—from mold making and casting to precision finishing—with dedicated quality inspectors overseeing product quality at every stage. BOPENG equipped with a diverse array of product testing instruments, and all our products have successfully obtained ISO quality system certification.
Round-the-Clock All-Round Service & Global Customer Partnerships
BOPENG offers 24/7 online consultation services. Our professional international trade team is dedicated to assisting you with any issues that may arise during the cross-border procurement process, while our technical team stands ready to help you resolve any challenges encountered during product design, installation, and operation. Relying on high-quality cast steel products and a comprehensive service system, BOPENG has earned widespread recognition from clients worldwide, establishing cooperative relationships with renowned enterprises such as Mesto, SMS, POSCO, and Lafarge.
BOPENG’s Solution for Cast Steel Products
BOPENG support fully customized large casting steel products in widely applications, including building material industry, metallurgical engineering, and mining industry. We supply one-stop solution from drawings to finished products.
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