Hot feed rubber extruder screw and barrel

hot feed rubber extruder screw and barrel 

Rubber industry only had Hot Feed Extruders until 1950’s.
Hot Feed Extruders(HFE) extrude rubber compounds at reduced temperatures.

EJS produces hot feed rubber extrusion screw and barrel, with rich experiences working with leading players in the rubber field in different countries.

Bore diameter available for hot feed rubber extruder screw and barrel
40 ~ 250mm

L/D ratio for hot feed rubber extruder screw and barrel
Varies from 4: 1 to 6: 1

 Surface Treatment of hot feed rubber extruder screw and barrel 
Nitrided
Hard Chrome Plating   
Ceramic coated
Hardfacing / Bimetallic with Ni60, Colmonoy 56, Colmonoy 83
Quenching

Material request for hot feed rubber extruder screw and barrel

The material for rubber screw must be:
Anti-high temperature;
Anti-wearing;
Anti-corrosion;
High strength to work with high torque and high speed;
Good cutting performance;
The relief and the thermal deformation is small after heat treatment.

The material for rubber barrel include:
38CrMoAlA (DIN1.8509)
42CrMo ( AISI4140)
Stainless steel 304

Where are hot feed rubber extruder screw and barrel used?
Tread, Tubes, Profiles, Hoses, Sheeting with Roller die head, Cable coating, Dock Fenders, Straining of Raw materials, Press blanks, pre-warming for Calendar feeding, Inner tubes for Bicycle, cars and Trucks etc.