MMPG Coffee Polisher

MMPG Series Coffee Polisher is a twin tube polishing machine for green coffee beans. It removes silverskin and dust. An automatic moisture spray gently cleans without damaging beans. Wear‑resistant stainless steel screens ensure long life. Axial airflow maintains low bean temperatures. It improves bean appearance and market value.

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Coffee Bean Cleaning Machines

Product Details

The MMPG Series Coffee Polisher is a twin tube polishing machine for green coffee beans after hulling. It removes residual silverskin, dust, and surface particles using an automatic constant multi-stage spray device that applies controlled moisture. The twin tube design maximizes throughput in a compact footprint. Wear-resistant stainless steel screens with nitriding treatment ensure long service life and consistent performance.

Integrated motor placement provides stability and space efficiency, while an axial airflow system maintains low bean temperatures to preserve delicate flavors. Ideal for specialty roasters and commercial export operations, the MMPG polisher enhances bean appearance and market value with gentle, high-yield processing.

Key Features

High-Yield Twin Tube Design for Maximum Throughput

The Coffee Polisher features a twin tube configuration that doubles processing capacity in a compact footprint. Each tube operates independently, enabling simultaneous processing of different lots or continuous operation during maintenance. This high-yield design reduces processing time and labor costs, making it ideal for export preparation, large-scale roasting, and facilities with growing volume requirements.

Nitrided Stainless Steel Screens for Exceptional Durability

Specialized 2mm stainless steel screens undergo proprietary nitriding treatment, extending service life 2–3 times longer than conventional screens. This surface hardening enhances wear resistance while maintaining corrosion resistance. The result is consistent polishing quality, reduced replacement costs, and less downtime. This polishing machine delivers reliable performance even under continuous, high-volume operation.

Ductile Iron Screen Frame and Axial Airflow Cooling

The screen frame uses ductile iron for exceptional impact resistance and dimensional stability under continuous vibration, ensuring long-term alignment. Axial airflow system maintains low bean temperatures during polishing, preserving delicate flavor compounds and assisting dust removal. This twin tube polishing machine protects coffee quality while providing robust structural integrity.

Integrated Motor Design for Stability and Space Efficiency

Internally mounted motor lowers the center of gravity, reducing vibration transmission and improving operational stability—ideal for elevated installations. This compact design saves floor space by eliminating external motor mounting and belt guards. The integrated approach also simplifies safety compliance, making the Coffee Polisher suitable for space-constrained urban roasteries or complex facility layouts.

High Output With Optimized Energy Consumption

Engineered to process large volumes while consuming minimal energy per kilogram, the machine uses bean-to-screen interaction as the primary polishing action rather than energy-intensive abrasion. The twin tube design processes twice the volume through a single motor system. Low operational costs and reduced carbon footprint support both profitability and sustainability initiatives for coffee processors.

Enhanced Appearance With Versatile Application

Consistent polishing action produces clean, uniform beans free from silverskin, dust, and discoloration—commanding higher prices in specialty and commodity markets. Handles washed and natural coffees, Arabica and Robusta, as well as aged or dusty beans. This coffee polishing equipment serves roasters, exporters, and specialty producers, improving visual appeal and roast consistency.

Technical Specifications