Core Value

he 300W Hot Runner Nozzle Coil Heater (Model: HT-CLW-550) is engineered for high-density thermal profile management in demanding plastic injection molding nozzles, hot runner manifolds, and packaging equipment. Constructed with a high-purity compacted MgO heating core enclosed in a durable SS304/SS316 sheath, the HT-CLW-550 is upgraded with heavy-duty Mica Glass Braid Wire. This advanced multi-layer insulation combines natural dielectric mica tape with high-temperature fiberglass braiding, delivering exceptional resistance to thermal degradation, electrical breakdown, and mechanical abrasion. Operating continuously at temperatures up to 650°C (1202°F), it provides uniform 360° thermal distribution, rapid heat-up response, and precise temperature stability to eliminate nozzle drooling and resin degradation during high-speed production cycles. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS for continuous, maintenance-free operation.

• ✓ Mica Glass Braid Wire Insulation: High-dielectric mica tape and fiberglass braiding withstand extreme heat, abrasion, and oil contamination.

• ✓ 300W High Watt Density Profile: Compacted design ensures rapid thermal recovery and uniform heat transfer to the nozzle core.

• ✓ Extreme Temperature Resilience: Operates continuously up to 650°C (1202°F) for processing high-temperature engineering polymers.

• ✓ Model HT-CLW-550 Standardization: Factory-calibrated dimensional specs for seamless drop-in replacement on hot runner systems.

• ✓ Integrated Thermocouple Support: Available with built-in Type J or Type K thermocouples for precise closed-loop PID control.

• ✓ Sealed Transition Junction: Moisture and contamination-resistant crimp head prevents melted resin from entering terminal wiring.

• ✓ Reliable Quality: 30+ YEARS MANUFACTURING EXPERIENCE guarantees long operational lifespan.

• ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS including high-voltage insulation and dielectric strength testing.

• ✓ Global Compliance: CE, LVD, RoHS, and ISO 9001 certified.

  Technical Specifications & Performance Data

Industrial Applications & Solutions

1. • • Hot Runner Injection Nozzles: Direct continuous heating for single and multi-cavity hot runner bushings, preventing plastic freeze-off and gate drooling.

     • PET Preform Mold Systems: Maintains precise, balanced temperature profiles across high-cavitation PET bottle preform nozzles.

     • Engineering Plastic Processing: Efficiently handles high-temperature resins such as PEEK, PEI, PPS, and glass-filled Nylon.

     • Packaging Sealing Bars & Form-Fill-Seal Jaws: Direct continuous heating in packaging lines requiring high thermal flex and tough lead protection.

     • Medical & Precision Micro-Molding: Stable, localized heat control required for cleanroom medical device component injection molds.

HT-Heater vs Standard Market Heaters

Installation & Integration Guidelines

• • • Nozzle Surface Preparation: Clean the nozzle mating surface thoroughly to remove old resin buildup, carbonization, and grease before installing the HT-CLW-550 heater.

    • Smooth Slide Fitting: Gently expand or slide the coil heater onto the nozzle body. Never hit the element with a metal hammer to avoid cracking internal MgO insulation.

    • Mica Lead Wire Routing: Route the flexible mica glass braid lead wires through the mold channels. Ensure wires are not pinched under clamping plates or exposed to sharp edges.

    • Thermocouple Polarity (If Equipped): Connect built-in thermocouple leads using correct color code polarity (Type J: White = Positive, Red = Negative) to your PID controller.

    • Initial Low-Voltage Bake-Out: Perform a low-voltage pre-heating cycle at 100°C for 10 minutes to eliminate any ambient moisture absorbed by insulation prior to running full 300W power.

Customer Success Stories

Case 1:

Automotive Lighting Component Molder (Poland)

• Application: Multi-cavity hot runner mold producing polycarbonate (PC) headlight lenses.

• Challenge: High temperature and tight wiring channels caused insulation melting and electrical shorts on standard fiberglass wire leads.

• Solution: 300W Hot Runner Nozzle Coil Heater HT-CLW-550 with Mica Glass Braid Wire.

• Results: ELECTRICAL SHORT FAULTS DROPPED TO 0%. “The mica glass braid lead wire handles continuous 300°C+ ambient channel heat without flaking or shorting. HT-Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS, and it shows in production.”

Case 2:

High-Speed Medical Syringe Mold Specialist (South Korea)

• Application: 64-cavity hot runner precision injection mold.

• Challenge: Temperature drops at nozzle tips caused gate freeze-off and inconsistent cavity filling.

• Solution: Custom HT-CLW-550 300W Coil Heaters with built-in Type J thermocouples.

• Results: CYCLE TIME REDUCED BY 14%. “30+ YEARS MANUFACTURING EXPERIENCE is clear in their thermal profiling. Heat distribution across all 64 nozzles is perfectly uniform.”

Pricing & Procurement Options

• • • tandard Production: MOQ 10 pieces. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensuring exact dimensional repeatability for model HT-CLW-550. Tiered OEM volume discounts for 50+ units.

    • Lead Times: Standard Stock Model HT-CLW-550: 3-5 days. Custom Lead & Coiling Configurations: 7-10 days. Express sample dispatch available for urgent mold retrofits.

    • Global Logistics: Worldwide express shipping via DHL, FedEx, UPS, or air freight. Securely packed in custom anti-static bags and protective export cartons.

    • Sample Orders: Custom samples manufactured upon CAD drawing approval. Every unit UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS prior to dispatch.

Global Certifications & Compliance

• CE Marking
  Fully compliant with European safety and environmental standards.
• LVD Compliance
  Low Voltage Directive tested for continuous thermal load safety.
• RoHS Compliant
  Constructed using environmentally safe, lead-controlled brass alloys.
• ISO 9001
  Certified quality control covering CNC machining, coil pressing, and electrical testing.

Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.

Comprehensive After-Sales Support

• • Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.

  • Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.

  • Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.

Ready to Optimize Your Injection Molding?

Next Steps:

• 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
• 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
• 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
• 📞 Contact Hot Runner Experts – Response within 2 hours