Plastic Extrusion Heater Manufacturer

Frequently Asked Questions

• Q: What type of heater is best for my extruder barrel?

• A: It depends on the processing temperature. For temperatures up to 450℃, mica bands are economical. For 450℃ to 750℃, ceramic bands are required. For high heat transfer in tight spaces, high-density cartridge heaters are ideal.

• Q: How can I prevent heater failure from plastic contamination?

• A: We recommend using heaters with sealed lead exits and robust constructions. For critical zones, cast-in heaters provide the ultimate protection against contamination.

• Q: Can you supply heaters with the exact hole pattern for my extruder?

• A: Yes, we can manufacture band heaters to match any bolt or hole pattern. Simply provide us with a drawing of your barrel's flange.

• Q: What is the benefit of using a cast-in heater on an extruder die?

• A: Cast-in heaters provide perfectly uniform heat across the die face, which is critical for consistent wall thickness and product quality. They also eliminate the risk of heater burnout from plastic leakage.

• Q: How quickly can you ship replacement heaters?

• A: We keep stock of common sizes. For custom orders, lead time is typically 2-3 weeks. We can also arrange expedited production for emergency situations.

• Q: Do you offer heaters for twin-screw extruders?

• A: Absolutely. We manufacture heaters for both single and twin-screw extruders, including the complex barrel configurations often found in twin-screw machines.

• Q: Can you integrate thermocouples into your band heaters?

• A: Yes, we can machine a slot in the heater to perfectly seat a thermocouple, ensuring accurate temperature sensing right at the heat source.

• Q: What kind of lead wire should I use for high-temperature zones?

• A: For zones exceeding 400℃, we recommend using high-temperature fiberglass or PTFE insulated leads to ensure safety and longevity.