Heavy-Duty Raw Mill & Clinker Rotary Airlock Feeder

Purpose-Built for Cement Plants | 600 TPH Capacity | Extreme Wear Resistance

Precision Machine & Manufacturing’s Heavy-Duty Raw Mill Rotary Airlock Feeder is engineered to withstand the high-temperature, high-abrasion demands of cement production. Built with 500 BHN abrasion-resistant steel, this feeder delivers reliable performance in critical applications—from clinker handling to raw mill feeding.

With capacities of up to 600 tons per hour, PMM’s Raw Mill Rotary Airlock Feeder ensures consistent metering of clinker limestone, industry leading airlock capability, and unmatched durability with minimal required maintenance! Join the growing list of Cement Manufacturers who are upgrading their raw mill feed systems with a purpose-built rotary airlock feeder from Precision Machine & Manufacturing.

Key Benefits

  • High-Volume Capacity: Handles clinker, limestone, kiln dust, and raw materials.

  • Abrasion-Resistance: A special U.S. sourced, 500 BHN steel alloy for maximum wear resistance.

  • Superior Airlock Sealing: Reduces air leakage, boosts process stability.

  • Precision Metering: Supports consistent feed to grinding mills and VRMs.

  • Rebuildable Design: Lowers lifecycle costs, simplifies maintenance.

  • Retrofit Ready: Ideal for replacing high failure and maintenance heavy triple-gate and legacy valve systems.

Built for Cement Industry Demands

Trusted by top cement producers, PMM’s Heavy-Duty Raw Mill Rotary Airlock is designed for maximum uptime, minimal maintenance, increased product flow, and long-term durability—from quarry to kiln to mill.

Eliminate costly triple-gate maintenance issues and old rotary valve failures by installing PMM’s Heavy-Duty Raw Mill Rotary Airlock Feeder.

Purpose Built for Cement Manufacturing

  • Clinker Silo Discharge.

  • Preheater tower outlets.

  • Limestone feed to raw mills.

  • Kiln dust recovery systems.

  • Vertical roller mill infeed.

  • Rebuildable = Superior Lifecycle Cost!

  • 2-years of Continuous Operation!

  • Heavy Duty Piloted Bearings.

  • Direct “Drop-In” Replacement.

  • Minimal Maintenance Required!