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 feed.

With capacities up to 600 tons per hour, it ensures tight airlock sealing, consistent metering, and long- lasting durability—making it the ideal upgrade or replacement for flap gates, triple gates, or worn-out cheap competitive raw mill rotary airlocks.

Key Benefits

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

  • Abrasion-Resistant Steel: U.S.-sourced 500 BHN alloy for maximum wear life

  • 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 gates and legacy valves

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 flap gate failures and improve raw material delivery with PMM’s Heavy-Duty

Proven Cement Plant Applications

  • Clinker silo discharge

  • Preheater tower outlets

  • Limestone feed to raw mills

  • Kiln dust recovery systems

  • Vertical roller mill infeed