1. The drum and scroll conveyor are made of stainless steel resisting corrosion.
2. The scroll conveyor was coated with wearable alloy or welded with alloy plate(Optional).
3. Stepless speed regulation for the bowl.
4. Step or stepless speed regulation for scroll's differential speed.
5. Safety protection: Rotation rate detection over, vibration protection, motor overload and overheat protection, protection for scroll when zero differential speed occurs.
6. For the highly sticky materials, it can add the hydraulic differential gear to stabilize.