Product Introduction

PTC Heating Elements

Self-regulating ceramic technology that prevents overheating. Ideal for: Constant temperature control and energy-efficient appliances.

PTC (Positive Temperature Coefficient) elements are self-regulating. As the temperature rises, the resistance increases, naturally limiting the power output for maximum safety.
We can customize the Curie temperature (the fixed temp point) to your needs, making them perfect for upgrading old equipment to a more energy-efficient, fire-safe system.
Technical Specifications Range / Typical Values
Voltage Range 12V / 24V / 110V / 220V (AC/DC)
Curie Temperature 50∘C – 280∘C
Inrush Current 2–3x steady-state current
Steady Resistance Variable (Depends on temperature)
Surface Style Insulated film, Aluminum shell, or Fin-type

Heating Tubes

Precision Industrial Heating Elements: Engineered for Your Exact Needs

At Runkel, we don’t just manufacture heating tubes; we provide thermal solutions. Our core strength lies in our unmatched customization capabilities.

Whether you are a researcher needing 1–2 prototype samples for a new project, or a maintenance manager looking to replace a discontinued or aging heating element in your existing machinery, we deliver perfect-fit solutions with no minimum order hurdles.

Why Choose Us? — The Customization Specialist

“From 1 unit to 1,000—we treat every prototype with production-grade precision.”

  1. Zero Minimum Order Quantity (No MOQ)——Most factories turn away small orders. We embrace them. If you need a single tube for a performance test or a rare replacement, we are your dedicated partner.
  2. Perfect Replacement & Retrofitting——Is your old equipment failing because the original parts are no longer available? Send us your drawings, photos, or the physical old part. We will reverse-engineer a 1:1 precision replacement that fits your existing mounting holes and electrical specs perfectly.
  3. Bespoke Engineering Specs——Materials: SUS304, 316L, 310S (High Temp), Incoloy, Titanium, and more.——Dimensions: Diameters from 3mm to 25mm+, custom lengths, and complex bending.Electrical: Optimized for your specific voltage (12V to 480V) and wattage requirements.

How We Work

  1. Engineering Review: Our team verifies the power density and material compatibility for your application.

  2. Agile Production: Your custom order enters our flexible production line immediately.

  3. Quality Assurance: Every unit undergoes rigorous insulation and leakage current testing before shipping.

Do you have a broken heating element that needs replacing, or a new project that requires a custom fit?