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Maxvolt Industrial Heaters

Product Datasheet

Component Heaters

Issued 19 Oct 2026

Coil & Hot Runner Heater

Coil & Hot Runner Heaters represent the pinnacle of precision-engineered heating technology specifically designed for high-performance plastic processing equipment and injection molding systems. These advanced heating elements are meticulously optimized for hot-runner injection molding systems, extrusion heads, dies, and specialized industrial applications requiring uniform, concentrated heat transfer with exceptional temperature control and reliability. The sophisticated engineering ensures optimal thermal performance in demanding production environments where precision heating is critical for product quality and operational efficiency.

  • High-temp operation >250 °C
  • Leak-proof fit around nozzle OD
  • Rapid heat-up & tight temperature tolerance
Coil & Hot Runner Heater

Technical Specifications

Outer Sheath Material316 Stainless Steel (premium grade)
Inner Liner MaterialBrass, Aluminum, or 316 Stainless Steel
Heating ElementNiCr resistance coil with MgO insulation
Diameter Range6 mm to 25 mm OD (custom sizes available)
Length Range25 mm to 2000 mm (standard and custom)
Wall ThicknessUp to 12 mm (application dependent)
Temperature Capability> 250°C continuous, up to 800°C peak
Power Density5 to 25 W/cm² (optimized for application)
Voltage Rating110V, 230V, 415V AC/DC (custom available)
Thermocouple OptionsBuilt-in Type J, K, or T (optional)
Cold Resistance Tolerance≤3%
Insulation OptionsCeramic fiber, mica, high-temp materials

Construction

Outer Sheath
Premium 316 stainless steel outer sheath providing exceptional durability, corrosion resistance, and mechanical strength for demanding hot runner environments and high-temperature applications.
Inner Liner
Precision-engineered brass, aluminum, or 316 SS inner liner optimized for superior heat transfer efficiency, thermal conductivity, and uniform temperature distribution throughout the heating zone.
Heating Element
High-quality NiCr (Nickel-Chromium) resistance coil tightly packed in premium MgO insulation, ensuring uniform watt density distribution, efficient heat generation, and long-term reliability.
Thermocouple Assembly
Optional integrated Type J, K, or T thermocouples (grounded/ungrounded) providing accurate temperature feedback, real-time monitoring, and precise process control capabilities.
Lead Wire System
Advanced lead wire configurations with high-temperature insulation, multiple termination options, and robust construction designed for reliable electrical connections in demanding environments.

Key Features

  • Prevents plastic backflow and leakage for zero-defect production runs
  • Uniform circumferential heat distribution for balanced melt flow
  • Custom coil shaping for optimal fit to any nozzle geometry
  • Low thermal mass design for rapid startup and shutdown cycles
  • Robust construction engineered for extended service life
  • Optional explosion-proof and CE-certified variants available
  • Superior thermal efficiency reducing energy consumption
  • Precise temperature control with integrated sensor options
  • High watt density capability for compact heating design
  • Corrosion-resistant materials for demanding environments

Applications

  • Hot-runner injection molding nozzles and manifolds
  • Extrusion head and die heating systems
  • Hot stamping and riveting fixture heating
  • Multi-cavity manifold temperature control
  • Plastic riveting and stamping press heating
  • Packaging machinery sealing and heating
  • Medical device manufacturing equipment
  • Automotive component injection molding
  • Aerospace precision molding applications
  • Food processing and packaging equipment