1. PLC and stepless speed-variable feeding technique to maintain the stock at the optimum height inside the inspection section, and assure the stock to overspread the feeding roll in continuous milling process; 2. Flip-open type protective cover for convenient maintenance and cleaning; 3. Modularized feeding mechanism allows the feeding roll to turn out for extra stock cleaning and keeping the stock from deterioration. 4. Accurate and stable grinding distance, multiple damping devices to minimize vibration, reliable fine-tuning lock; 5. Customized high-power non-standard tooth wedge belt, to meet the needs of high-power transmission between the grinding rollers; 6. Screw type tensioning wheel adjustment device can accurately adjust the tensioning force of the tooth wedge belts.