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Product Introduction

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PTC Heating Elements

PTC Heating Elements: Smart Self-Regulating Thermal Technology

  • Overview
PTC (Positive Temperature Coefficient) Heating Elements are advanced ceramic stones or chips that replace traditional resistance wires. Unlike standard heaters that output a constant wattage regardless of temperature, PTC stones act as their own sensor. As the element heats up, its electrical resistance increases exponentially, causing the power output to automatically drop. This “smart” behavior makes them exceptionally safe, energy-efficient, and ideal for compact applications.
  • Customization Advantage
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
  • Key Performance Benefits

Inherent Self-Regulation: A PTC heater cannot overheat. Once it reaches its designed Curie temperature, the resistance “trips,” effectively throttling the current. This eliminates the risk of fire even if a fan fails or a liquid level drops.

 

Rapid Heat-Up & Dynamic Response: PTC elements draw higher current when cold, allowing them to reach operating temperature almost instantaneously. They then settle into a low-energy “maintenance” mode.

 

Energy Efficiency: By automatically adjusting power consumption based on the ambient thermal load, PTC heaters avoid the energy waste associated with the constant “On-Off” cycling of traditional thermostats.

 

Compact & Durable: With no delicate coils to break and a solid-state ceramic construction, these heaters are highly resistant to vibration and can be manufactured in incredibly small footprints.

 

Feature Low-Voltage (DC) Series High-Voltage (AC) Series
Operating Voltage 12V – 48V (Automotive/Battery) 110V – 240V (Industrial/Home)
Surface Temperature 122°F – 554°F (50°C – 290°C) Up to 600°F (315°C)
Housing Options Bare Stone, Insulated Film, Aluminum Fin Ceramic Casing, Submersible Sleeve
Response Time < 5 Seconds to Peak Temp < 10 Seconds to Peak Temp
  • Primary Applications

Automotive & EV: Cabin pre-heating, battery thermal management, and diesel fuel warming (preventing “waxing”).

 

Consumer Electronics: Hair straighteners, glue guns, and ultrasonic humidifiers.

 

Industrial Enclosures: Dehumidification and anti-condensation heating for outdoor electrical cabinets and kiosks.

 

Medical Devices: Fluid warming for IV drips and heated breathing tubes for ventilators.

 

Home Appliances: Coffee makers, wax warmers, and supplemental room space heaters.

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?

Contact Us