Rice destoner MTCG

cerealfor wheatfor granular products

Overview
The Combistoner MTCG is a grain classifier and destoner designed for integration in grain handling and milling lines. It separates stones, glass, metal and other solid foreign objects from cereals such as wheat (including durum), maize/corn, rye, oats, barley and rice using a two‑step classification and destoning process.

Key benefits

• Multi‑crop capability: suitable for a wide range of cereals used in milling and grain processing.
• Energy option: optional MANW air‑recycling unit can reduce energy consumption by up to 30% compared to conventional destoners.
• Wide capacity range: typical throughput for wheat is 10–28 t/h (maximum cited up to 28 t/h), adaptable by configuration.

How it works
The machine performs a two‑step cleaning: first the grain is classified into mixed and high‑density fractions; the mixed fraction proceeds to downstream milling steps, while the high‑density fraction is reprocessed in the destoning stage where stones, metal and glass are removed.

Applications and throughput

• Pre‑cleaning and cleaning in milling, rice mills and grain handling facilities.
• Typical capacity examples: 10–28 t/h for wheat; final capacity depends on grain type and machine configuration.

Airflow and optional air‑recycling
An optional MANW air‑recycling unit returns filtered process air to the system, reducing exhaust air volume and saving energy (up to ~30%). The unit is designed for low exhaust volume, central filtering and aspiration, and can reduce maintenance by removing fine particles from process air.

Technical specifications

• Model: Combistoner MTCG
• Manufacturer: Bühler
• Function: two‑step classification and destoning (classifier + destoner)
• Processed materials: wheat (including durum), maize/corn, rye, oats, barley, rice
• Throughput: typical range 10–28 t/h (wheat example); maximum cited up to 28 t/h
• Separation targets: stones, glass, metal and other solid foreign objects
• Airflow options: standard fresh‑air operation; optional MANW air‑recycling unit
• Benefits of air‑recycling: reduced energy consumption, reduced exhaust air volume, central filtering and aspiration, improved fine‑particle removal, potential reduction in maintenance and downtime