Keywords: Fibrous Material Grinder, Food Grade Grinder, Sanitary Mill, Precision Size Reductor.
High-Precision & Perfect Particle Size Control
Attrition Mills are engineered for industries that require precise size reduction of fibrous and friable materials. Unlike standard impact mills, its “single runner” technology excels at producing a narrow particle size range—from coarse down to 100 mesh—ensuring consistent quality for every batch.
The material enters through the center of a stationary outer disc and is ground against a high-speed rotating inner disc. Centrifugal force moves the material across the milling plates, where the adjustable gap determines the final fineness.
Key Features
- Versatile Processing: Ideal for materials that cannot be handled by hammer mills, impact or screen classification, such as seeds, spices, tobacco, cellulose, and metal powders.
- Precision Control & Uniformity: Superior consistency is achieved through precise disc alignment and a balanced runner head assembly. Easily adjust the gap between discs using a hand wheel and a clear indicator gauge to reach your exact target size. Statically and dynamically balanced components combined with constant spring pressure ensure a perfectly uniform end product.
- Customizable Rotors & Milling Plates: Feature rotor diameters ranging from 12 to 36 in. (30.5 to 91.4 cm). Choose from various plate patterns (Radial, Spiral, Devil’s Tooth, etc.) to optimize the mill for your specific material. With custom plate designs and adjustable settings, it provides a milling solution specifically calibrated for your product (One size fits all).
- Exceptional Efficiency: Experience high throughput with a low horsepower-to-output ratio, saving you energy and operational costs.
- Quick & Easy Cleaning: Designed with a vertical disc orientation and hinged doors, the mill allows for fast inspection and thorough clean-outs between different product runs.
- Operator Safety & Convenience: Features like interlocked doors, fully enclosed guards, and quick-release housings make maintenance safe and simple.
- Compact Drive System: Equipped with a standard overhead motor-mounted V-belt arrangement, designed for durability and space efficiency in any facility.
- Superior Durability: Built with high-grade Ni-Hard® alloy or hardened stainless steel discs, these machines are designed for heavy-duty, long-term performance.
- Precision Bearings: The assembly is supported by industrial-grade pillow block ball bearings (radial and thrust-load rated) for maximum stability and reduced maintenance.
- Precision Feeding: Direct forced screw feeding for consistent material input and improved efficiency.
- Versatile Discharge: Custom transitions for both gravity discharge and pneumatic collection systems.
- Advanced Controls: Comprehensive control packages featuring start/stop functions and variable rotor speed adjustments.
Technical Options
- Material: Available in Carbon Steel or 304/316 Stainless Steel.
- Standards: Options for industrial or high-level sanitary food-grade finishes (interior surface finishes ranging from #4 to #7 and internal welds polished from 120 to 240 grit).
- Feeding: Gravity discharge or direct forced screw feeding available.
Typical Applications
Preferred choice for processing:
- Food & Agriculture: Grains, spices, cocoa, mustard seeds, and nut butters.
- Industrial: Cellulose, fibers, minerals, and metal powder recycling.
- Specialty: Tobacco stems, roots, and feather curling.
Why Choose Attrition Mill?
Attrition Mills deliver an unmatched combination of high throughput and energy efficiency, helping you maximize your production capacity while lowering operational costs. Engineered for heavy-duty performance, these mills feature premium Ni-Hard® alloy or hardened stainless steel discs ensuring long-term durability even under demanding conditions. With a wide range of customizable milling plates and flexible configurations, it provides a tailormade size reduction solution specifically calibrated to fit your exact application needs.
Beyond high performance, this equipment is designed with operator safety and convenience in mind. The innovative quick-release, hinged housing and interlocked doors allow for effortless inspection and fast, thorough clean-outs between product runs, drastically reducing your downtime. Backed by built-in safety features like fully enclosed drive guards and robust limit switches, attrition mills offer a secure, highly reliable, and low-maintenance investment for your processing facility.
Attrition Mill Model SK-30-SS
Features a stationary stator disc (left) and an adjustable rotating disc. The particle size is precisely controlled by narrowing or widening the gap between the discs via a rear hand wheel equipped with a gap gauge. Engineered to deliver a precise and narrow particle size spectrum, ranging from 2 to 100 mesh for superior product consistency.
Attrition Mill Model SK-30-SS, Closed Chamber
Material enters through the center of the outer disc and moves outward radially, grinding efficiently as it passes between the discs.
Attrition Mill Carbon Steel Model SK-24-MS
Incoming material enters through the center of the stationary disc. Driven by the centrifugal force of the rotating disc, it moves outward radially, grinding efficiently within the adjustable gap. Equipped with a 24 in. (61 cm) diameter rotor, this unit consistently produces precise particle sizes ranging from 10 to 100 mesh.
Attrition Mill Carbon Steel Model SK-24-MS, Rear View
Features a rear-mounted hand wheel with a lock ring and a gap gauge, allowing operators to easily adjust and secure the exact spacing between the discs.
Attrition Mill Food Grade Sanitary Model-SK-30-SS
Built with high-grade stainless steel housings and a robust support structure, this model is engineered for quick, effortless cleaning and maximum hygiene between product runs.
Attrition Mill Model-SK-24
Versatile Grinding Plates
Available in a wide range of sizes and designs, cast grinding plates are offered in premium materials—including Ni-Hard®, brass, bronze, and SH-100 hardened cast iron—to perfectly match your application.
Milling Plates
In various designs for specific purposes.