PLC Controlled Automatic Temperature Control EPDM/Butyl Rubber/NR Cold Feed Extruder

PLC Controlled Automatic Temperature Control EPDM/Butyl Rubber/NR Cold Feed Extruder

Here’s a detailed comparison of cold feed extruders for processing EPDM, Butyl Rubber (IIR), and Natural Rubber (NR), including key technical considerations and application-specific requirements:

Cold Feed Extruders for EPDM, Butyl Rubber (IIR), and Natural Rubber (NR)

Key Takeaways

1. EPDM Extruders:

   • Require high-pressure screws and vacuum degassing.

   • Need precise cooling to prevent scorching.

2. Butyl Rubber (IIR) Extruders:

   • Low-shear design critical (IIR degrades easily).

   • Slow extrusion speeds improve product quality.

3. Natural Rubber (NR) Extruders:

   • Standard cold feed extruders work, but anti-stick features help.

   • Higher temps improve flow but require scorch control.

Equipment Recommendations

• For EPDM: Choose a vacuum cold feed extruder with a long L/D screw (e.g., 18:1).

• For Butyl Rubber: Opt for a low-compression screw (1.5:1) with temperature-controlled zones.

• For NR: Standard cold feed extruder works, but a grooved feed zone improves output.

Would you like specific machine models or further details on screw configurations?

In which industries is rubber cold feed mainly used?

Rubber cold feed extruders are widely used across industries where precise, efficient, and continuous rubber extrusion is required. Here’s a breakdown of the key industries and their applications:

1. Automotive Industry

• Seals & Gaskets: EPDM for door/window seals, HVAC gaskets.

• Hoses & Tubing: Silicone (MQ), NBR, or FKM for fuel, coolant, and air ducts.

• Vibration Dampers: NR or IIR for engine mounts and bushings.

2. Tire Manufacturing

• Tire Treads & Sidewalls: NR, SBR, and BR blends for cold feed extrusion.

• Inner Liners: Butyl rubber (IIR) for air retention in tubeless tires.

3. Construction & Infrastructure

• Roofing Membranes: EPDM for waterproofing sheets.

• Expansion Joints: CR or NBR for bridge/road seals.

• Cable Insulation: EPDM or XLPE for fire-resistant cables.

4. Industrial Rubber Products

• Conveyor Belts: NR/SBR for mining and logistics.

• Roller Coverings: PU or NBR for printing/packaging machinery.

5. Medical & Food-Grade Applications

• Silicone Tubing: Biocompatible catheters, IV tubes.

• Food Conveyor Belts: FDA-approved rubber compounds.

6. Oil & Gas

• Seals & O-Rings: FKM/NBR for chemical/oil resistance.

• Offshore Hoses: CR/CSM for saltwater/UV resistance.

7. Consumer Goods

• Footwear: SBR/NR for shoe soles.

• Sporting Goods: NR for bicycle grips, yoga mats.

Why Cold Feed?

✔ Energy Efficiency – No pre-heating required.
✔ Material Versatility – Handles synthetic (EPDM, NBR) and natural rubber.
✔ Precision – Better control for complex profiles (e.g., seals, hoses).

Industries avoiding cold feed: High-temperature vulcanizing (HTV) applications may prefer hot feed.

Need details on a specific sector? Let me know!

Qingdao Beishun Environmental Protection Technology Co., Ltd. is engaged in Environmental protection machinery, rubber machinery R & D and manufacturing enterprises, located in the west coast of Qingdao ---- Jiaonan city, Qingdao Economic and Technological Development Zone, adjacent to the former Bay near Qingdao Port and International Airport Jiaodong airport, excellent geographical location.

The company gathered a large number of the industry's outstanding technical and management personnel, advanced machining, heat treatment equipment and sophisticated detection equipment. With high-quality service, advanced equipment and strong technical force as the basis, through constant innovation and development, Beishun Environmental Protection Technology machinery has many customers at home and abroad to establish a stable business relationship, and gradually establish a brand in the same enterprise.

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