Pin cold feed screw, machine barrel.

Φ60mm-Φ300mm

Long diameter ratio L/D: 12~18.

Rubber cold feed screw.

Φ45mm-Φ300mm

Long diameter ratio L/D: 8~20.

Rubber hot feed screw.

Φ40mm-Φ300mm

Long diameter ratio L/D: 4~6.

Heat treatment:

Nitriding treatment

Hard chromium plating

High frequency quenching

Spray corrosion resistant, wear - resistant bimetal layer.

Vacuum quenching