1. Rotor：The screw rotor is integrated form to enhance its rigidity and stability.

2. Lip seal：LIP Seal design effectively prevent from contaminants entering the tank.

3. Bearing Lubrication：Bearings at both sides with splash lubrication design, that is easyfor maintenance.

4. Direct water-cooling design：High cooling efficiency, and the whole of water channels are adopted anti-corrosion coating.