Impact Pin Mill Pulverizer for Fine Micron Powder Grinding

Product introduction of Impact Pin Mill Pulverizer

This impact pin mill pulverizer is designed for efficient micron powder production across demanding industrial applications. Material is evenly introduced into the grinding chamber, where a high-speed rotating disc generates intensive impact against the opposing grinding components. Simultaneous shearing, friction, and particle collision progressively reduce the feed into fine powder.

Unlike conventional screen-based mills, the screenless structure promotes smooth material discharge and reduces restrictions caused by fine screens. The selected configuration uses a 22 kW motor, reaches a maximum disc speed of 12,000 rpm, and incorporates three grinding rows. Particle size can reach D97 10–500 μm, while typical fine-grinding applications can achieve D50 10–45 μm, depending on material characteristics and operating conditions.

Its compact configuration, enclosed grinding process, and flexible installation options make it suitable for food, pharmaceutical, chemical, pigment, mineral, and advanced powder processing applications.

Key Features

Screenless Fine Grinding

The screenless grinding structure eliminates dependence on conventional sieves, supporting smoother powder discharge and reducing screen-related blockage during fine processing.

Micron Particle Processing

High rotational speed and intensive impact enable micron-scale size reduction. Typical applications can achieve D50 values of approximately 10–45 μm, depending on the material and process conditions.

Multi-Force Size Reduction

Material is not reduced by impact alone. High-speed operation combines impact, shearing, friction, and collision, providing intensive particle reduction inside a compact grinding chamber.

Enclosed Grinding Process

The closed processing configuration helps limit powder escape and supports a cleaner production environment with reduced dust during operation.

Flexible Process Configuration

Different grinding disc arrangements and system configurations can be selected according to material properties, target particle size, temperature requirements, and downstream processes.

Easy Cleaning and Maintenance

Compact construction and accessible grinding components simplify disassembly, inspection, and cleaning between production batches.

Technical Parameters

How the Impact Pin Mill Works

Raw material is continuously introduced into the center of the grinding chamber. Once inside, it encounters the rapidly rotating grinding disc and is accelerated to high velocity.

The particles repeatedly collide with pins, stationary grinding components, and other particles. Impact breaks larger particles, while shear and friction provide further size reduction. This repeated action continues as material travels through the grinding zone until sufficiently fine particles leave the chamber.

Because the system does not rely on a conventional screen for final discharge, fine powder can exit smoothly without waiting to pass through small screen openings.

Micron Powder Grinding Performance

The machine is particularly suited to applications where conventional coarse pulverizing is insufficient. High disc speed increases the energy transferred to each particle, allowing progressively finer powder to be produced within a relatively compact grinding chamber.

The selected configuration reaches up to 12,000 rpm, while the grinding structure provides three rows of intensive size-reduction elements. This combination supports D97 particle sizes from 10–500 μm, with D50 of 10–45 μm available under suitable processing conditions.

Applications

• Food Ingredient Processing – Fine grinding of compatible dry ingredients, seasoning materials, grain derivatives, and powdered food components.
• Pharmaceutical Powder – Micronization of suitable pharmaceutical ingredients requiring controlled particle reduction.
• Chemical Powder – Processing of compatible chemical materials and inorganic compounds into finer particles.
• Pigment and Dye Processing – Fine milling where improved particle dispersion and consistent powder size are required.
• Mineral Processing – Size reduction of suitable mineral and inorganic materials for subsequent production stages.
• Advanced Material Processing – Applicable to selected battery, refractory, and functional powder materials requiring fine grinding.

Closed Grinding System

Fine powder processing can generate significant airborne dust when an open grinding system is used. This pin mill can operate as part of an enclosed processing system, helping contain powder during grinding and transfer.

The enclosed arrangement is particularly useful when processing lightweight micron powders because it improves workshop cleanliness and reduces uncontrolled material loss. Additional collection or classification equipment can be integrated according to the required production process.

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