Core Value: The 220V Brass Sleeve Hot Runner Coil Heater is engineered for high-efficiency thermal profile management in demanding plastic injection molding nozzles and hot runner systems. By pressing a high-density stainless steel coil heater into a CNC-precision grooved brass sleeve, this assembly provides 360° uniform thermal distribution and eliminates air gaps that cause premature element burnout. Operating continuously at temperatures up to 600°C (1112°F), the high thermal conductivity of the brass sheath ensures instantaneous heat transfer, preventing nozzle drooling and resin degradation during high-speed molding cycles. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS for continuous, maintenance-free operation.
- ✓360° Uniform Heat Profile: Precision-machined brass sleeve eliminates hot spots and thermal lag.
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✓ High Thermal Conductivity: Heavy-duty brass sheath accelerates thermal transfer to the nozzle core.
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✓ Extreme Temperature Capability: Operates up to 600°C (1112°F) for processing high-temperature engineering resins.
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✓ Integrated Thermocouple Support: Built-in Type J or Type K thermocouple for precise closed-loop PID control.
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✓ Moisture & Contamination Resistant: Sealed brass construction protects internal elements from melted resin leakage.
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✓ Easy Installation & Removal: Smooth internal bore allows easy slide-on fitting and removal without binding.
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✓ Reliable Quality: 30+ YEARS MANUFACTURING EXPERIENCE ensures consistent batch performance.
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✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS including high-voltage insulation testing.
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✓ Global Compliance: CE, LVD, RoHS, and ISO 9001 certified.
Technical Specifications & Performance Data
| Parameter | Standard Value | Customizable Range | Notes |
| Voltage Rating | 220V AC (Single Phase) | 110V / 230V / 240V / 380V | Standard industrial power compatibility |
| Sleeve Material | High-Density Brass (CuZn39Pb3) | Bronze / Stainless Steel | Excellent thermal expansion profile |
| Coil Sheath Material | SS304 / SS316 / Incoloy 800 | Custom Alloys | Compacted MgO powder insulation |
| Max Operating Temp | 600°C (1112°F) | Up to 650°C short-term peak | Resists oxidation and brass degradation |
| Watt Density | 5.0 – 8.0 W/cm² | Up to 10.0 W/cm² | Engineered for ultra-fast thermal response |
| Thermocouple Type | Built-in Type J (Fe-CuNi) | Built-in Type K / Ungrounded | Enables real-time PID feedback control |
| Cross Section | 2.2 × 4.2 mm / 3.0 × 3.0 mm | Flat / Square / Round profiles | Custom pressing into brass grooves |
| Lead Wire Style | PTFE / Fiberglass Sleeved Leads | Kevlar Braided / SS Armor | High-temperature strain relief protective sleeve |
| Inner Diameter (ID) | Ø10 mm – Ø50 mm | Built to nozzle drawings | Precision CNC lathe bored (±0.02 mm) |
| Warranty | 1 Year Standard | Extended coverage available | Guaranteed against manufacturing defects |
Industrial Applications & Solutions
- Injection Molding Nozzles: Critical heating for the final melt path. The 6mm profile provides sufficient power to maintain melt viscosity for engineering plastics like PEEK and Ultem.
- Hot Runner Manifolds: Used to heat distribution channels. The formable nature allows the heater to be routed into complex manifold grooves for uniform plate heating.
- Die Casting Machines: Nozzle heating for zinc and magnesium die casting. Robust sheath construction withstands mechanical shock and vibration.
- Medical Molding: Precision small-part molding (syringes, caps). Integrated thermocouples ensure the tight temperature windows required for medical-grade polymers.
- Packaging Industry: Thin-wall container molding. Fast thermal response helps reduce cycle times and improve production output.
- 3D Printer Nozzles: Large-scale industrial FDM printers. Provides consistent high heat for extruding high-temp thermoplastics
HT-Heater vs Standard Market Heaters
| Feature | HT-Heater (Factory) | Standard Market | Your Advantage |
| Brass Sleeve Fit | CNC Precision Grooved & Pressed | Loose-Fit Crimp / Hand Wound | Zero internal air gap, rapid heat transfer |
| Thermal Limit | Continuous operating up to 600°C | Burnout / warps above 350°C | Handles extreme watt densities safely |
| Thermocouple Fit | Fully Integrated in Brass Groove | External Loose Sensor Wire | Accurate temperature reading at nozzle wall |
| Lead Wire Protection | Heavy-Duty SS Armor / PTFE Sleeve | Basic Fiberglass Sleeve | Prevents wire breakage during mold assembly |
| Manufacturing Exp. | 30+ YEARS EXPERIENCE | Unverified Workshops | Proven nozzle heating engineering |
| Quality Assurance | MULTIPLE RIGOROUS QUALITY CHECKS | Basic Resistance Test Only | ZERO DEFECT DELIVERY |
Installation & Integration Guidelines
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Nozzle Surface Cleaning: Meticulously clean the nozzle surface to remove carbonized plastic, oil, and rust before mounting the brass sleeve heater.
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Smooth Slide Fitting: Slide the heater onto the nozzle smoothly. Do not use a hammer or sharp tools to force the brass sleeve, as this can damage internal heating coils.
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Thermocouple Wiring: Connect the built-in thermocouple leads (White = Positive, Red = Negative for Type J) carefully to your PID temperature controller.
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Lead Wire Routing: Ensure lead wires are secured along the mold wire channels to avoid pinching or abrasion during mold clamping cycles.
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Initial Warm-up: Run a gradual pre-heating cycle at 100°C to eliminate any ambient moisture absorbed by the terminal insulation prior to full-power operation.
Customer Success Stories
Case 1:
PET Bottle Preform Molder (Mexico)
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Application: 48-cavity hot runner PET preform injection molding system.
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Challenge: Standard coil heaters experienced frequent burnout due to plastic leakage and uneven contact heat.
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Solution: 220V Brass Sleeve Hot Runner Coil Heater with integrated Type J thermocouples.
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Results: NOZZLE HEATER BURNOUT REDUCED BY 80%. “The brass sleeve completely seals the coil against resin leaks. HT-Heater 220V Brass Sleeve Hot Runner Coil Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS and it shows in our uninterrupted production.”
Case 2:
Medical Plastic Component Injection Specialist (Germany)
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Application: PEEK resin precision medical connector injection mold.
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Challenge: Strict temperature tolerance required nozzle heat stability within ±1°C at 380°C.
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Solution: CNC-machined Brass Sleeve Coil Heaters with custom watt-density distribution.
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Results: REJECT RATE DROPPED TO NEAR 0%. “30+ YEARS MANUFACTURING EXPERIENCE is evident in their thermal design. The heat response around the nozzle is perfectly uniform.”
Pricing & Procurement Options
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Standard Production: MOQ 10 pieces. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensuring exact dimension repeatability across production batches. Tiered OEM discounts available for 50+ units.
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Lead Times: Standard Stock Sizes: 3-5 days. Custom Brass Sleeve CNC Runs: 7-10 days. Express sample dispatch available for urgent mold repairs.
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Global Logistics: Express delivery via DHL, FedEx, UPS, or air freight. Securely packed in custom anti-static bags and protective export cartons.
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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
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Warranty: 1-Year Comprehensive Warranty covering internal heating element and brass structure.
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Technical Support: Application engineers available for wattage calculation, thermocouple calibration, and nozzle fitting assistance.
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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 – Specify ID, length, and watts
- 🔧 Free Design Consultation – Hot runner heater sizing
- 📦 Order Test Samples – Verify precision fitment
- 📞 Contact Hot Runner Experts – Response within 2 hours
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