The 150mm16D/20D Cold Feed Rubber Extruder consists of several major components, each of which must be made from materials with specific properties to withstand the demanding conditions of rubber extrusion. These materials must exhibit high strength, wear resistance, corrosion resistance, and thermal stability to maintain consistent performance.

Extruder Barrel Material

The barrel of the 150mm16D/20D Cold Feed Rubber Extruder houses the rubber as it moves through the extrusion process. This component is subjected to high pressure and continuous friction, necessitating materials that can withstand mechanical stress.

Common Material: Nitrided or hardened steel alloys

Key Characteristics:

High wear resistance to prevent surface degradation

Corrosion resistance to endure exposure to various rubber compounds

Good thermal conductivity for stable processing temperatures

Structural strength to handle high internal pressure

The use of nitrided steel enhances surface hardness, extending the barrel's operational lifespan and ensuring consistent extrusion quality.

Screw Material

The screw is a critical part of the 150mm16D/20D Cold Feed Rubber Extruder, responsible for transporting, compressing, and homogenizing the rubber material. The screw operates under high torque and experiences significant wear due to the movement of rubber compounds.

Common Material: High-alloy tool steel or nitrided steel

Key Characteristics:

High hardness to reduce wear and prolong service life

Resistance to abrasion from rubber fillers and additives

Corrosion resistance to withstand exposure to chemical agents

Precise machining capability to maintain uniform material flow

Some advanced models use bimetallic screws, which provide enhanced durability and performance in challenging extrusion applications.

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The system adopts forced circulation of media, and controls the temperature of each section independently in six units. Each unit is composed of a water pump, an electric heater, a temperature control instrument, a cooling water on-off solenoid valve, an automatic exhaust valve, a platinum thermal resistance, and an electrical contact pressure. Table (shockproof) and other components, the circulating water pump injects the medium (softened water) into the electric heater (the automatic exhaust valve discharges the gas in the system), flowsthrough the barrel, pipeline, the machine head, and the screw return to the suction port of the pump.