TQSF/TQSFB De-stoner

High-Efficiency Removal of Stones, Glass, and Dense Contaminants

This De-stoner removes stones, glass, metal, and even small kernel-sized stones through combined vibration and upward airflow. Heavy contaminants sink, clean grain floats. Protects downstream mills and packaging from damage while enhancing final product purity. Ideal for wheat, rice, corn, and coffee processing where rigorous contaminant removal is essential.

Dual Principle Operation: Gravity Separation With Airflow Classification

Vibration stratifies material by density; upward airflow fluidizes the grain bed, lifting clean grain away from heavy impurities. This synergistic density separator achieves higher efficiency than either principle alone. Dual vibration motors and adjustable airflow ensure precise control, delivering consistent separation across varying grain types, moisture levels, and contamination loads.

Air-Recycling Option for Flexible Installation

Choose between self-contained air-recycling (TQSFB models) for stand-alone operation without central aspiration, or standard models for connection to existing dust collection systems. Both deliver the same high efficiency. This stone removal machine adapts to facility infrastructure, reducing installation costs and simplifying integration—ideal for plants without centralized air systems.

Comprehensive Downstream Equipment Protection

By removing hard contaminants upstream, the De-stoner extends the life of roller mills, hammer mills, and pulverizers, preventing costly damage and unplanned downtime. Particularly effective against small, kernel-sized stones that cause progressive roll wear. This protective function also improves food safety by eliminating hazardous materials from finished grain products.

Wide Capacity Range Across 11 Scalable Models

Available in 11 models (TQSF43–TQSF250) with capacities from 1 to 22 t/h for common wheat. TQSFB models offer additional air-recycling options. Match exact throughput requirements—from small specialty mills to large industrial plants. Modular design allows easy expansion. All models maintain validated high separation efficiency across the full capacity range.

Adjustable Parameters, Versatile Application, and Durable Build

Adjust vibration amplitude and airflow volume externally to optimize for different grains, moisture, or contamination levels. Handles wheat, rice, corn, beans, sesame, coffee, and more. Heavy-duty carbon steel with anti-corrosion coating (stainless steel optional). This heavy impurity separator provides low total cost of ownership through durable bearings, sealed motors, and reliable continuous operation.