Hot sale VRM parts: Grinding rollers, grinding table, rocker arm, wheel hub, grinding table liners, hydraulic systems, separator components, etc.
Services: Customization, testing, and worldwide shipping are available.
A vertical roller mill is a high-efficiency grinding equipment in cement grinding plants that integrates grinding, drying, separation, and conveying in one machine. It is also applied in industries including electric power, metallurgy, the chemical industry, and non-metallic mining, etc. The key components for vertical roller mills mainly include grinding rollers, grinding tables, rocker arms, wheel hubs, etc. A premium part contributes to the stability, high efficiency, and energy-saving effect of the cement grinding unit.
CNBM understands the importance of the quality of VRM parts. The choice of material, manufacturing process, and quality inspection is under strict control to provide vertical roller mill parts of original factory quality.
Original factory quality
High wear-resistant
Customization service
Advantages of Vertical Roller Mill Parts—Trusted CNBM
Superior wear resistance
Vertical mill components such as grinding rollers and grinding table liners are made of high-chromium cast iron, hard-faced weld overlay alloys, or ceramic composite materials, with a surface hardness of HRC58–65, and a wear life 2–3 times longer than that of ordinary cast steel parts.
Exact Fit & Compatibility
All key components are manufactured based on original factory drawings or 3D scan data to ensure dimensional accuracy and assembly tolerances. It supports customized processing and model adaptation to avoid vibration or premature wear caused by errors.
Stable Grinding Performance
The structure and materials of the components have been verified under long-term working conditions to ensure uniform pressure distribution of the grinding rollers and stable contact surface of the grinding table, thereby reducing material layer fluctuations and vibrations.
Regenerable & Easy Maintenance
Vertical mill components generally adopt modular and recyclable designs. Significantly reduces downtime and maintenance costs and extends the service life of the entire machine.
Comprehensive Quality Control
All components undergo multiple inspection processes, including chemical composition analysis, metallographic testing, ultrasonic/magnetic particle testing, and hardness testing; each product comes with an MTC (Material Certificate of Quality) and a quality traceability number.
Grinding roller for vRM
Weight: >5 ton
Material: ZG30Mn, ZG45, ZG42CrMo, etc.
Customizable: Yes, as per drawings
Certificates: ISO9001:2015, ISO14001:2015, OHSAS 18001:2007
The grinding roller is one of the core grinding components of a vertical roller mill (VRM), working in conjunction with the grinding table to crush and pulverize materials.
During the operation of the vertical mill, the grinding roller applies high pressure via a hydraulic system, forcing the material into a layer for efficient grinding. Its performance directly determines the grinding efficiency, energy consumption, and product quality of the VRM.
Main Components of the Grinding Roller
Roller Body: Bears the main grinding pressure and is typically made of high-strength cast steel.
Grinding Surface: Constructed with high-chromium alloy or a wear-resistant overlay, this is the critical working surface of the grinding roller.
Bearing Assembly: Ensures smooth rotation and uniform force distribution of the grinding roller.
Sealing System: Prevents dust and oil from entering the bearings, extending their service life.
Hydraulic Loading Connection: Adjusts the grinding pressure and controls the grinding effect.
Grinding table for vrm
Weight: 1-132 tons
Material: Plain carbon steel, silico-manganese steel
Customizable: Yes, as per drawings
Certificates: ISO9001:2015, ISO14001:2015, OHSAS 18001:2007
The grinding table is a key component in a vertical roller mill (VRM) that carries materials and performs grinding. Its upper surface is the working area where the grinding rollers roll.
Main Components of the Grinding table
Table Base: A monolithic cast steel structure that bears the pressure of the grinding rollers and the load of the material.
Liners/Segments: Installed on the surface of the grinding table for the grinding area in direct contact with the grinding rollers; replaceable.
Bolting & Fixing System: Ensures the liners are securely fixed and do not loosen during operation.
Air Ring: Located around the perimeter of the grinding table, used to regulate airflow speed and material flow direction for drying and grading.
Reject Cone: Guides coarse particles back to the center of the grinding table, maintaining material layer stability.
Rocker arm for vrm
Weight: 10-25 t
Material: ASTM: 1035 / DIN: CK35
Customizable: Yes, as per drawings
Certificates: ISO9001:2015
The rocker arm is a key force-transmitting component in a vertical roller mill (VRM), used to transfer the pressure generated by the hydraulic system to the grinding rollers, thereby crushing and grinding the material.
In the entire mill, the rocker arm undertakes three main functions: force transmission, roller support, and oscillation guidance. Its structural strength and fatigue life directly affect the safety and operational stability of the equipment.
Main Components of the rocker arm
Upper Rocker Arm: Connects to the grinding roller bearing housing, supporting the grinding roller and allowing it to swing.
Lower Rocker Arm: Connected to the hydraulic cylinder, responsible for bearing and transmitting the load.
Main Shaft & Bushings: Serves as the rotation center of the rocker arm, ensuring smooth movement.
Pins & Fastening System: Connects the various components of the rocker arm and ensures secure locking.
Lubrication & Sealing System: Reduces friction and wear, extending service life.
wheel hub for vrm
Weight: 5-30 t
Material: ZG270-500, etc.
Customizable: Yes, as per drawings
Certificates: ISO9001:2015
The wheel hub is a core structural component in a vertical roller mill (VRM), connecting the grinding rollers and the rocker arm. Its main function is to evenly distribute the pressure and torque transmitted from the rocker arm onto the grinding rollers, achieving a stable and efficient grinding process.
Main Components of the Grinding table
Table Base: A monolithic cast steel structure that bears the pressure of the grinding rollers and the load of the material.
Liners/Segments: Installed on the surface of the grinding table for the grinding area in direct contact with the grinding rollers; replaceable.
Bolting & Fixing System: Ensures the liners are securely fixed and do not loosen during operation.
Air Ring: Located around the perimeter of the grinding table, used to regulate airflow speed and material flow direction for drying and grading.
Reject Cone: Guides coarse particles back to the center of the grinding table, maintaining material layer stability.