High-Capacity Roller Mill For Ideal for Metal Powders Low Maintenance

Quick Details

Structure

• Grinding Chamber: Usually cylindrical, made of materials such as stainless steel, high - chrome cast iron or lined with wear - resistant materials like ceramic tiles. For example, in some laboratory roller - ball mills, the grinding chamber is made of 304 or 316L stainless steel4.
• Rollers: Constructed from various materials including steel, polyurethane, or ceramic. Their shape is generally cylindrical, and they are mounted on a frame. The frame is connected to a drive system to make the rollers rotate.
• Drive System: Consists of a motor, belt pulley, bearings, etc. The motor provides power, and the power is transmitted to the rollers or the grinding chamber through the belt pulley and bearings35.
• Feed and Discharge Devices: The feed device is used to send materials into the grinding chamber, and the discharge device is used to discharge the ground materials. Roller - ball mills can operate in both batch and continuous modes, and the design of feed and discharge systems needs to ensure efficient material flow.

Working Principle:

• The drive system makes the rollers rotate. When the rollers rotate against the inner surface of the grinding chamber, a shear zone is formed, and the material trapped in this zone is subjected to intense shearing forces, which is beneficial to the size reduction of softer materials.
• At the same time, the grinding media (such as steel balls or ceramic balls) in the grinding chamber are propelled and lifted by the rotating rollers. Then, the grinding media fall by gravity and impact the material bed below, achieving the purpose of crushing and grinding materials.

Features: 

1. Compact structure, easy operation

2. High efficiency and uniform granularity

3. Milling pot in different size can be put on the driven rubber roller within a certain range by means of adjusting space between the rubber rollers.

4. It is convenient to change pots and suitable for both wet and dry grinding. 

Technical Parameters:

Mill pot

Materials of jars for choosing:

 Agate, Zirconia, Alumina ceramic (Corundum), Tungsten Carbide, Stainless steel,PU (Polyurethane), PU with stainless steel liner, PTFE (Polytetrafluoroethylene), Nylon etc.

Vacuum jars are available as well.

Mill balls

Materials of balls for choosing:

 Agate, Zirconia, Alumina, Tungsten Carbide, Stainless steel,PU, PTFE, Nylon, Carbon steel, PU etc.

Sizes for choosing: 1mm, 3mm, 5mm, 8mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm

Package photo:

Notice:

*Secure Components: Ensure rollers, chambers, and other components are properly assembled and secured before operation. *Emergency Stop: Familiarize yourself with the emergency stop button and use it if any issues arise.

*Material Compatibility: Ensure the materials being processed are compatible with the rollers and chamber to avoid contamination. *Speed Settings: Start at lower roller speeds and gradually increase to avoid excessive wear or damage.

*Filling Ratio: Maintain the recommended filling ratio of material for optimal performance.

*Run Time: Avoid continuous operation for extended periods; allow the machine to cool down between cycles.

*Feed Rate: Control the feed rate to prevent overloading and ensure consistent grinding.

*Regular Cleaning: Clean rollers, chambers, and other components thoroughly after each use to prevent cross-contamination. *Inspect Components: Check for wear, cracks, or damage to rollers, bearings, and seals before each use.

FAQ:

*What is a roller mill?

A roller mill is a grinding machine that uses rotating rollers to crush, grind, or mix materials into fine particles or homogeneous mixtures.

*What are the main applications of a roller mill?

It is used for grinding, mixing, and homogenizing materials in industries like pharmaceuticals, food processing, paints, and metallurgy.

*What materials can be processed in a roller mill?

Metal powders, pigments, pharmaceuticals, ceramics, chemicals, and food products.

*How does a roller mill work?

Materials are fed between rotating rollers, which apply pressure and shear forces to grind or mix them into fine particles or uniform blends.

*What types of rollers are used?

Rollers can be made of stainless steel, zirconia, or ceramic, depending on the application.

*What is the typical roller speed?

Speeds range from 50 to 500 RPM, depending on the model and application.

*Can a roller mill be used for wet and dry grinding?

Yes, it supports both wet and dry grinding processes.

*How do I choose the right roller material?

Select based on the material being processed and the desired outcome. For example, use ceramic rollers for high-purity applications.

*What is the recommended filling ratio for the chamber?

Typically, feed material evenly and avoid overloading to ensure efficient grinding.

*How long does a grinding process take?

It depends on the material and desired particle size, but processes can range from a few minutes to several hours.

*How do I clean the rollers and chamber?

Clean them with appropriate solvents (e.g., water, ethanol) and dry thoroughly after each use.

*What factors should I consider when buying a roller mill?

Consider roller material, chamber capacity, speed range, and whether you need a single-roller, double-roller, or multi-roller design.

*Can I customize the machine for specific applications?

Yes, we offer customizable options for rollers, chambers, and control systems.