High-Volume, Heavy-Duty Rotary Airlock Feeder

Engineered for Maximum Throughput | Abrasion-Resistant | Built for Demanding Bulk Material Handling

Precision Machine & Manufacturing’s Double Slope, High-Volume Rotary Airlock Feeder is engineered for high- capacity applications involving abrasive, powdery, or dry bulk materials. Built with PMM’s proprietary abrasion- resistant steel (30×30 and larger), it delivers unmatched durability, precision metering, and low maintenance in the

harshest industrial environments. From limestone, fly ash, and bottom ash to chemical powders and mineral fines, this rugged airlock maintains consistent material flow and throughput—critical for continuous operation in pneumatic conveying, batch processing, and dust collection systems.

Key Features

  • Double Slope Wear Plates: Increases rotor pocket volume and improves infeed process.

  • Abrasion-Resistant Steel Construction: Built for high-wear materials

  • Precision Metering: Ideal for batch or continuous feed

  • Low Maintenance Design: Minimizes downtime and total operating cost

  • High-Temp Options Available: For ash handling and extreme conditions

  • Rebuildable Assembly: Extends equipment life and lowers lifecycle costs

Built to Handle What Others Simply Cannot!

PMM’s High-Volume, Heavy-Duty Rotary Feeder is trusted across industries for reliable, high-capacity material handling. Contact the Precision Machine & Manufacturing team today!

Application Highlights:

  • Cement, Aggregate & Minerals

    • Feeds limestone, clay, gypsum, and similar abrasives
    • Designed for grinding mills, baghouses, and silo discharge

  • Chemical Processing

    • Handles fine materials like soda ash, calcium carbonate, and talc
    • Reduces buildup and bridging with optimized internal geometry

  • Power Generation & Utilities

    • Reliable handling of fly ash, bottom ash, and combustion byproducts
    • Tight airlock seal reduces air leakage and boosts system efficiency

  • Mining & Metals

    • Built for abrasive fines, dusts, and concentrates
    • Maintains throughput under heavy load conditions