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Product Introduction

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Double-Ended (Tubular) Heating Tubes

Versatile shapes (U, W, or straight) with high mechanical strength. Ideal for: Liquid immersion (water/oil) and industrial radiant heating.

  • Overview
The most versatile heating element, featuring terminals at both ends. These can be bent into almost any geometry to fit tanks, manifolds, or air ducts.
  • Customization Advantage
From SUS304 to Incoloy, we select the material based on your specific liquid (water/oil/acid). We support small-batch prototyping for new equipment manufacturers.
Technical Specifications Range / Typical Values
Voltage Range 110V / 220V / 380V
Power Range 100W – 15kW
Resistance Range 10Ω – 800Ω
Current Range 1A – 40A
Surface Load Liquid: 6–12W/cm2 / Air: 2–4W/cm2

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