If your application needs reduction, whether from 6-inch to sub-micron size, choose from Prater’s superior fine grinders, air classifying mills, hammer mills, and lump breakers to meet all of your industrial processing needs. We have been designing, manufacturing, and delivering innovative solutions for customers of all sizes worldwide. Prater’s products are some of the most versatile and diverse on the market. We are always committed to providing the highest-quality processing equipment to ensure efficiency and overall performance.
Prater Particle Size Reduction Products
Mega Mill Hammer Mills
Our Mega Mill Hammer Mill provides uniform grinding with reduced heat buildup and a bearing and shaft arrangement that ensures smoother, quieter operation.
Air Classifying Mills
The air-classifying mills combine two-stage, closed-circuit grinding with internal air classification for ultra-fine micronization. The distinctive capabilities of the Prater Air Classifying Mill outperform single-stage mills when handling products that are difficult to grind or require ultra-narrow particle distributions.
M Series Fine Grinders
The “M” Series fine grinders are designed to grind dry, free-flowing material to 400 mesh with an extremely tight particle-size distribution. This highly efficient machine ensures easy access to all internal areas and is perfect for heat-sensitive materials, such as resins, sugars, and powder coatings. Notable features include a final product size between 60 – 400 mesh, external bearing assembly, a dynamically balanced reversible rotor assembly, ensured tight clearances between rotors and fixed grinding elements, and a dual o-ring door seal with a floating door hinge for positive sealing.
Lump Breakers
A compact, economical, easy-to-maintain machine that gently pulverizes agglomerated or densified material with lumps up to 8 inches in size. Reduced-size material has improved flow characteristics and also benefits downstream blending and drying processes.
Full-Screen Hammer Mills
Our Full-Screen, ‘G-series’ design is a proven system that maximizes the use of the entire available screen area to enhance end-product quality and equipment productivity.
If your application needs reduction, whether it is from 6-inch to sub-micron size, choose from Prater’s superior fine grinders, air classifying mills, hammer mills, and lump breakers to meet all of your industrial processing needs. We have been designing, manufacturing, and creating innovative solutions for large and small customers all over the world. Prater’s products are some of the most versatile and diverse on the market. We are always committed to providing the highest-quality processing equipment to ensure efficiency and overall performance.
Lump Breakers for Particle Size Reduction
Our lump breakers reduce pieces or lumps from 6 inches to 1/16 inch and feature easily replaceable rotating and fixed blades. A wide range of products, including chemicals, minerals, salt, sugar, fertilizers, and ceramic powders, can be processed using our state-of-the-art lump breaker. If you are looking for something more precise, consider our fine grinders. Designed to grind dry, free-flowing material down to 200 mesh with very tight particle distribution, our fine grinders are also ideal for heat-sensitive materials such as powder coatings, sugars, and resins.
Hammer Mills and Air Classifying Mills for Difficult Applications
Prater’s Hammer Mills are widely used across industries to process a wide range of materials for particle-reduction applications that require high capacity, power efficiency, and uniform particle size. All of our hammer mill models use our exclusive full-screen design, ensuring the full use of the available screen area. Additionally, our Air Classifying Mills offer two-stage closed-circuit grinding with inter-stage air classification all in one convenient unit. The Air Classifying Mills are ideal for difficult-to-grind applications or for narrow particle distribution curves.
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Frequently Asked Questions
What is particle size reduction in industrial processing?
Particle size reduction is the process of breaking down bulk materials into smaller, more uniform particles through grinding, milling, or crushing. This process improves material handling, increases surface area, and ensures consistent product quality for downstream manufacturing operations.
What types of equipment are used for particle size reduction?
Industrial size reduction systems commonly use hammer mills, air classifying mills, fine grinders, and lump breakers. Each technology is designed to process specific materials and achieve different particle size distributions depending on the application.
When should a manufacturer use an air classifying mill instead of a hammer mill?
Air classifying mills are typically used when extremely fine grinding or narrow particle size distributions are required. These systems combine grinding with internal air classification, allowing oversized particles to be recirculated until they reach the desired size.
What industries rely on particle size reduction equipment?
Particle size reduction equipment is used across industries such as food processing, chemicals, minerals, agriculture, pharmaceuticals, and nutraceutical manufacturing where consistent particle size is critical for product performance and processing efficiency.
How does particle size reduction improve manufacturing efficiency?
Reducing particle size improves material flow, increases reaction surface area, and helps achieve consistent particle distributions. This improves downstream processes such as mixing, blending, coating, or separation while reducing waste and improving overall process control.