Precious Metals & Minerals Processing

Improve efficiency, reduce product loss, and grow throughput!

NFPA Compiant- Ideal for Abrasive & Corrosive Materials

Extreme Duty Rotary Valve Airlock

An NFPA Compliant Rotary Valve Airlock manufactured specifically to efficiently and effectively handle granular and powdery substances, which have abrasive and/or corrosive characteristics.
High-Volume Powdery, Granular, Ash Materials

Double Slope Rotary Feeder Airlock

A durable high-volume rotary airlock feeder manufactured specifically to handle massive amounts of low moisture granular and/or powdery materials types, are relatively uniform in size, and possess abrasive and/or corrosive characteristics.
Perfect for Eliminating Material Breakage

Side-Entry Rotary Valve Airlock

An offset or side-entry rotary valve airlock designed specifically to handle materials of relative uniform size while minimizing shearing and breakage of delicate, formed, molded, granular, or pelletized material types.
NFPA Compliant-Perfect for Low Moisture Materials

Self-Cleaning Rotary Valve Airlock

The Self-Cleaning Rotary Valve Airlock is the perfect metering airlock for the efficient handling of high-moisture materials that are subject to sticking, packing, and/or clogging the material handling system.
Wood, Organic and Alternative Fuel Materials

Rotary Feeder Airlock w/Knife

The Rotary Airlock Feeder w/Knife is both a metering device and an airlock. Equipped with a hardened tool steel knife so oversized materials are sheared to a common size before entering the delivery system. The Rotary Airlock Feeder w/Knife is the preferred choice within industrial manufacturing industries than handle wood, biomass materials, plastic, rubber, and various alternative fuels.
When a Superior Auger is Required!

Extreme Duty Screw Conveyors

No need to settle for an “off-the-shelf” Screw Conveyor when an upgrade is needed! Designed to meet the unique needs of the application and manufactured by hand to ensure the highest possible quality, PMMs screw conveyors are superior in every way to “off-the-shelf” augers.

Precise Solutions

  • Maximize your revenue and ROI with greater reliability and constant uptime. PMM material handling components are a key ingredient in helping an industrial manufacturing operation maintain strong profit margins and a competitive edge.
  • Stay compliant with environmental regulations. PMM components reduce material loss by minimizing dust creation and are an important part of any dust collection system.
  • Precisely process high-value and specialty-blended products. PMM's proprietary material handling systems are the industry's preferred choice when processing high value minerals, chemicals, proprietary blends, and/or special additives.
  • Need to move high-volumes of valuable granular materials? Not all materials are created equal, it is for this reason why we utilize a higher grade abrasion-resistant steel alloy when “special handling” is required.
  • Feeding high moisture content materials into the material handling system? PMM can make a challenging process more reliable, with far less sticking or clogging of hard-to-handle materials, while also providing superior airlock functionality.
  • Single Source Supplier of all your rotary valve airlocks. Simplify spare and critical parts by utilizing PMM as your preferred supplier for material handling components.
  • Rebuildable! All PMM material handling components are rebuildable! This provides a greater ROI over the life of the product and significantly reduces CAPEX purchases and overall maintenance costs.