Vertical Mill Wear Parts
Vertical roller mill (VRM) spare parts are essential to the grinding process. The quality of these parts affects the service life, operation efficiency, and product quality of the mill. AGICO is a professional manufacturer of cement equipment and spare parts. We provide durable, wear-resistant, and precisely engineered VRM spare parts for cement plants, mines, and power stations worldwide.
Vertical Roller Mill Spare Parts We Supply
Every part is designed to increase mill uptime, reduce maintenance costs, and improve grinding efficiency.
| Spare Part | Materials | Hardness | Application (Location & Main Function) |
|---|---|---|---|
| Grinding Roller / Sleeve | High Chromium Cast Iron, Wear-Resistant Ceramic, Hardfacing Overlay, Ni-Hard | 55–68 HRC / HRA 85+ | On rocker arm, rolls on table to crush material |
| Table Liners | High Chromium Cast Iron (KmTBCr26), Nickel Hard (Ni-Hard4) | 55–65 HRC | On grinding table, bears roller load and grinds material |
| Rocker Arm | ZG270-500, ZG30SiMnMo | — | Between cylinder and roller, transmits grinding pressure |
| Classifier | Wear-Resistant Steel | — | At mill top, separates fine powder from coarse particles |
| Nozzle Ring | Heat-Resistant Alloy Steel | — | Around grinding table, directs airflow to carry material up |
Grinding Roller (Roller Tyre / Roller Sleeve)
The grinding roller is the most important part of a vertical roller mill. It rolls on the grinding table to crush materials. The roller sleeve is the protective cover that directly touches the material.
Features of AGICO grinding rollers:
- High hardness and strong wear resistance – not easy to crack
- Made from high-quality materials for a long service life
- Customized for cement, coal, and slag grinding
- Materials: high chromium cast iron (55–65 HRC), wear-resistant ceramics (HRA85+), and hardfacing overlay (55–68 HRC)
Grinding Table & Table Liners
The grinding table is fixed on the gear box output flange. On top of the table, there are table liner segments made of special wear-resistant cast steel. These liners take the load from the rollers and the force from rotation.
Features of AGICO grinding tables and liners:
- Evenly distributes materials for the precise grinding of cement, slag, and coal
- High-strength alloy construction for stable operation
- Wear-resistant materials: high chromium cast iron (KmTBCr26) and nickel hard alloys (Ni-Hard4)
- Segmented design for easy replacement
- Evenly distributes materials for the precise grinding of cement, slag, and coal
Rocker Arm (Swing Lever)
The rocker arm is a large part that transfers hydraulic pressure to the grinding roller. It includes an upper arm, lower arm, central shaft, bearing housing, and forged shaft. The upper arm holds the roller, and the lower arm connects to the hydraulic system. Together they work like a lever.
Features of AGICO rocker arms:
- Made of high-quality steel like ZG270-500 and ZG30SiMnMo
- Advanced flaw detection (ultrasonic and radiographic) to ensure no internal defects
- Shot blasting surface treatment for better hardness and corrosion resistance
- Designed for durability and stable operation
Hydraulic Cylinder
The hydraulic cylinder drives the grinding rollers and provides stable pressure for grinding. It controls the gap between the rollers and the table, ensuring consistent product quality.
Features of AGICO hydraulic cylinders:
- Customizable for different VRM models
- High-pressure design with durable construction
- Heavy-duty for demanding environments
- Double-acting with precise pressure control
Classifier (Separator)
The classifier determines the fineness of the final product. It separates qualified powder from raw materials with high accuracy, ensuring consistent product quality.
Features of AGICO classifiers:
- High classification accuracy
- Efficient separation of fine powder
- Optimized design for various applications
- Available in O-Sepa and TOE types
Nozzle Ring
The nozzle ring surrounds the grinding table. It provides an air stream to carry ground material upward. It guides airflow and optimizes heat and material movement, supporting efficient grinding and saving energy.
Features of AGICO nozzle rings:
- Durable construction for harsh conditions
- High-temperature resistant design
- Optimized air distribution for efficient material transport
- Precision guide vanes for controlled airflow
Other VRM Wear Parts
AGICO also supplies other VRM wear parts, including
- Scraper plates – remove material from the table
- Guide vanes – direct airflow in the classifier
- Deflector rings – improve classification performance
- Wear protection covers – for various mill components
- Sealing components – prevent dust leakage
Why Choose AGICO Vertical Mill Wear Parts?
AGICO has many years of experience in the cement equipment industry. We provide reliable, high-performance spare parts to customers worldwide.
- Professional Technical Support – Our engineers offer installation guidance and after-sales service.
- Premium Quality Materials – We use advanced high-chromium cast iron, alloy steel, and wear-resistant ceramics for long service life.
- Custom Manufacturing – We make parts according to your drawings or samples with exact dimensions.
- Strict Quality Control – Every product is carefully inspected to avoid defects.
- Competitive Factory Price – Direct supply from our factory saves your cost.
- Fast Delivery – We keep stock for common parts and produce custom orders quickly.
Frequently Asked Questions (FAQ)
Q1: Can AGICO produce VRM spare parts according to my drawing?
Yes. We offer custom manufacturing based on your drawings or samples. We can adjust size, material, and design to fit your mill.
Q2: What is the service life of grinding roller sleeves?
It depends on the material and application. High chromium cast iron sleeves usually last 10,000–30,000 hours. Ceramic sleeves can last 20,000–50,000 hours.
Q3: Can worn roller sleeves be repaired?
Yes. When the sleeve is worn, we can repair it using the hardfacing process. This restores the size and performance and greatly extends its life.
Q4: Does AGICO supply parts for all VRM brands?
Yes. Our parts are compatible with many brands, including Loesche, Fuller, UBE, Polysius, and ATOX. All parts meet or exceed OEM quality standards.
Q5: How can I get a price for VRM spare parts?
Please contact us by email, online form, or phone. We will reply within 24 hours with a detailed quote.
