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DP Pulverizer Americas Inc
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High-performance pin mill from DP Mills

Pin Mills by DP Pulverizer – High-Efficiency Grinding for Fine to Medium Powder Processing

DP Pulverizer Pin Mills offer high-speed, impact-based grinding for fine to medium powders—ideal for efficient, consistent processing across food, pharma, chemical, and battery industries.

Industries & Applications

DP Pulverizer Pin Mills are used across a wide variety of industries:

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A pin mill is a type of impact mill that grinds materials through repeated collisions with finely spaced pins mounted on a rotating disc. Unlike traditional mills, pin mills provide high-speed impact-based size reduction that is both efficient and consistent, making them ideal for a wide range of fine to medium grinding applications.

At DP Pulverizer, we manufacture robust, versatile pin mills designed to deliver uniform particle sizes with high throughput and minimal downtime.

Pin mills operate on a rotor-stator principle, using concentric discs studded with pins to break down materials:

  1. Material Feeding
    Raw material is introduced into the grinding chamber through a gravity or screw feeder.
  2. High-Speed Impact
    The rotating disc (rotor) spins at high RPMs, causing the material to impact the fixed pins on the stationary disc (stator). In some designs, both discs rotate in opposite directions for intensified impact.
  3. Size Reduction
    Through repeated collisions, the material is pulverized until it reaches the desired particle size.
  4. Product Discharge
    Finished product is discharged via gravity or airflow, often collected through a cyclone or dust collector.
  • Rotor & Stator Discs
    Equipped with precision pins that create the grinding zone.
  • Grinding Chamber
    Houses the discs and ensures uniform material movement and distribution.
  • Feed Inlet
    Introduces the product into the mill, typically controlled via screw or vibratory feeder.
  • Outlet & Discharge System
    Cyclone, bag filter, or direct collection for finished product.
  • Drive Motor
    High-efficiency motor powers the rotor and determines impact force.
  • Compact, Energy-Efficient Design – Small footprint with high throughput capabilities.
  • Uniform Particle Size Distribution – Excellent control over final output for consistent product quality.
  • Adjustable Fineness – By changing pin configuration or operating speed.
  • Easy Maintenance – Quick access to internal components for cleaning and servicing.
  • Low Heat Generation – Suitable for heat-sensitive materials.
  • Versatile Applications – Handles a wide range of materials from brittle to semi-soft.
  • ⚠️ Not Ideal for Sticky or Oily Materials – May cause clogging or fouling.
  • ⚠️ Wear & Tear – Pins may require regular inspection or replacement when processing abrasive materials.
  • ⚠️ Limited to Dry Materials – Wet or moist products are not compatible with standard pin mill designs.
DP Mills USA Facility
63
Years of experience
DP Pulverizer Americas Inc

Why Choose DP Pulverizer Pin Mills?

At DP Pulverizer, our pin mills are designed to offer reliability, precision, and versatility. Whether you need a small batch mill for R&D or a high-capacity system for industrial production, our machines are engineered to perform in the toughest conditions.

With customizable pin configurations, multiple material options (SS304, SS316, Hastelloy, etc.), and inert gas compatibility, our pin mills are built to exceed expectations.

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