Circular Fins
Circular or spiral fins provide an enlarged heat-transfer surface around the tubular element for natural- or forced-air heating.
Finned Tubular Heater Manufacturer for Industrial Air Heating
Industrial Heating Manufacturer Since 2001 | Custom OEM/ODM
- More Surface Area for Faster Air Heating
- Lower Sheath Temperature for Longer Service Life
- More Heat in Limited Installation Space
- Straight, U, W & Custom Shapes
JIEO Finned Tubular Heater for Compact and Reliable Air Heating
- Increased Convective Surface Area for Faster Air Heating The enlarged finned surface transfers heat into moving air more effectively, helping the equipment reach its target temperature sooner when airflow and power are correctly matched.
- Lower Sheath Temperature for Longer Heater Service Life The enlarged surface spreads heat more effectively at comparable loading and airflow, reducing thermal stress for longer operating life and fewer replacements.
- Rugged Metal-Sheathed Construction for Reduced Downtime Compacted MgO and the metal sheath insulate and protect the resistance coil, supporting reliable operation with less risk of damage from vibration and handling.
- Configurable Geometry for Compact Installation Straight, U-shaped, W-shaped, S-shaped, and custom-formed heaters place the required heating capacity within limited duct or equipment space.
- Application-Matched Materials for Reliable Operation JIEO matches sheath, fin, and sealing materials to temperature, humidity, and corrosion conditions, helping to prevent premature failure and reduce maintenance needs.
What Is a Finned Tubular Heater
A JIEO finned tubular heating element is a metal-sheathed electric heating element designed primarily for heating air and compatible, non-corrosive gases. It uses a tubular heating element with a resistance wire electrically insulated by compacted MgO, with metal fins added to the outer sheath to increase the heat-transfer surface. Fin material, size, spacing, and construction are selected according to the required airflow, temperature, and installation conditions.
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JIEO finned surface increases tubular heating element contact with the surrounding air, allowing natural convection or forced airflow to carry heat away more effectively. This improves convective heat transfer, supports a lower sheath temperature at comparable loading, and allows more heating capacity to be arranged within limited duct or equipment space.
JIEO Finned tubular heaters are commonly used for forced-air heating, natural-convection heating, industrial process air heating, HVAC ducts, ovens, dryers, and other air-heating equipment.
Types of JIEO Finned Tubular Heater
Straight Finned Tubular Heater
A linear heating element designed for simple installation in ducts, ovens, air channels, and parallel heater banks.
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U-Shaped Finned Tubular Heater
A hairpin-style element that places two heated sections within a compact installation area.
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W-Shaped Finned Tubular Heater
A multi-leg element that provides more heated length and capacity within limited duct or equipment space.
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Custom Shaped Finned Tubular Heater
A formed element manufactured to match the customer’s equipment dimensions, airflow path, mounting points, and terminal position.
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JIEO Finned Tubular Heaters: More Surface Area for Better Air Heat Transfer
JIEO designs the finned section around the actual air-heating requirement rather than using one fixed fin design. Circular stainless-steel fins can be produced with an outside diameter starting from 12 mm, while larger diameters and fin spacing can be customized according to the tube diameter, airflow, and required heat-transfer area.
Square plate fins are also available to match rectangular frames, ducts, and other equipment layouts. With correctly matched airflow and watt density, you get more stable air-heating performance and reduce the risk of premature heater replacement caused by excessive sheath temperature.
The fins are securely welded to the tubular element to maintain firm thermal contact during repeated heating and cooling. This enlarged surface area transfers heat into the surrounding air more effectively, helping your equipment meet the required air-heating output without relying on an unnecessarily high element temperature.
Submit Heater RequirementsJIEO Controlled Finned Tubular Heater Forming for Compact Air-Heating Layouts
JIEO manufactures finned tubular heaters in straight, U-, W-, and S-shaped configurations to suit different installation spaces and heating layouts. For a Ø9.5 mm tubular element, JIEO can form bends down to approximately R14 mm, allowing a greater effective heating length and finned surface area within a limited space.
Bend radius, leg spacing, overall dimensions, and fin positions are controlled to match the required heater layout, ensuring the formed element fits the equipment while maintaining the integrity of the tubular sheath and internal insulation through the bends.
This allows you to fit a longer effective heating section into your available space and install the finished heater with fewer layout changes or on-site adjustments.
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Item
Description
Diameter Range
6–20 mm (0.24–0.79 in)
Diameter Tolerance
±0.02 mm
Length Range
50–800 mm (1.97–31.50 in)
Length Tolerance
±1 mm
Circular Fin OD
From 12 mm (0.47 in), customizable according to tube diameter and air-heating requirements.
Standard Cold Section
From 10 mm, customized according to heater design
Voltages
12 V, 24 V, 36 V, 110 V, 220 V, 240 V, 380 V
Resistance Tolerance
+10% / -5%
Wattage Tolerance
+5% / -10%
Dielectric Withstand
1500 V/60 sec
Resistance Wire
FeCrAl / Ni80Cr20
Insulation
High-Purity Magnesium Oxide (MgO)
Sheath Materials
SS201, SS304, SS310S, SS316, SS316L, TA1, Alloy 800
Material selection depends on the operating temperature and environment.
Fin Materials
Steel fins on steel sheath — up to 750°F (400°C)
Steel fins on Incoloy or stainless-steel sheath — up to 750°F (400°C)
Stainless-steel fins on stainless steel, Incoloy 840, or Alloy 800 sheath — up to 1200°F (650°C)
Certifications & Quality Assurance
JIEO finned tubular heaters are manufactured under an ISO 9001-certified quality management system and meet CE and RoHS requirements, helping you complete supplier qualification and compliance reviews with confidence.
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JIEO Matches Heater Materials to Your Operating Environment
For a stainless steel finned tubular heating element, JIEO selects the sheath, fin material, and terminal sealing as a complete combination rather than using a single standard construction for every finned tubular heater. Steel-fin constructions are available with material temperature ratings up to about 400°C (750°F), while stainless-steel fin constructions with stainless or Incoloy sheaths can be configured for material temperatures up to about 650°C (1200°F).
For general humid conditions, SS304 or SS316L with stainless-steel fins and moisture-sealed terminals can be used to improve protection against moisture. More demanding environments are reviewed by JIEO engineers before the final material combination is confirmed.
Submit Heater RequirementsFinned Tubular Air Heating Elements for Industrial Applications
Finned Tubular Duct Heaters for HVAC Air Heating
For duct air heating, JIEO can arrange straight or U-shaped finned tubular elements across the airflow. Fin spacing is matched to the available airflow, while threaded fittings or mounting plates secure the elements through the duct wall. Stainless-steel construction and moisture-sealed terminals are available for humid air conditions.
Need a JIEO Finned Tubular Heater Designed for Your Equipment?
Send us your airflow, inlet and target outlet temperatures, available installation space, voltage, and electrical requirements.
Industrial Ovens and Recirculating Cabinets
Where installation space is limited, U-, W-, or S-shaped elements can place more heated length inside the oven or in the recirculating air path. Heater shape, leg spacing, and fin position are adjusted to the cabinet dimensions, with terminal sections kept away from the hottest air zone where possible.
Need a JIEO Finned Tubular Heater Designed for Your Equipment?
Send us your airflow, inlet and target outlet temperatures, available installation space, voltage, and electrical requirements.
Dryers and Curing Equipment
For continuous drying or curing lines, multiple straight or U-shaped heaters can be arranged as a heater bank across the moving air. JIEO adjusts the heated length, fin spacing, and watt density to distribute the required heat across the airflow rather than concentrating it on a short element.
Need a JIEO Finned Tubular Heater Designed for Your Equipment?
Send us your airflow, inlet and target outlet temperatures, available installation space, voltage, and electrical requirements.
Heat Treating and Annealing Air Systems
Higher-temperature process air requires evaluating the sheath material, fin material, watt density, and airflow together. JIEO can combine stainless-steel fins with stainless-steel or Alloy 800 sheaths, selecting the final material combination based on the required outlet-air temperature and allowable sheath temperature. This helps keep the element temperature within its design limit during continuous air heating.
Need a JIEO Finned Tubular Heater Designed for Your Equipment?
Send us your airflow, inlet and target outlet temperatures, available installation space, voltage, and electrical requirements.
Finned Tubular Heater Modules for Fan-Forced Equipment
In compact fan-forced equipment, U- or W-shaped elements can place more active heated length and finned surface within the available airflow path without requiring a larger enclosure. JIEO configures the mounting brackets, element spacing, and terminal direction around the fan and enclosure layout.
Need a JIEO Finned Tubular Heater Designed for Your Equipment?
Send us your airflow, inlet and target outlet temperatures, available installation space, voltage, and electrical requirements.
What to Send for a Custom Finned Tubular Heater
For a custom finned tubular heater, heating elements are available in straight, U-shaped, and W-shaped configurations. Please provide the required dimensions and specifications, including overall length, tube length, finned length, tube and fin dimensions, terminal spacing, terminal type and thread size, voltage, wattage, and quantity.
JIEO Finned Tubular Heater Construction
A JIEO finned tubular heater uses the same core construction as a tubular heating element, with metal fins added around the sheath to increase the heat-transfer surface area for air heating. The performance of the finished heater therefore starts with the quality of the tubular core — including the resistance wire, compacted MgO insulation, sheath material, forming, and terminal construction.
JIEO first controls these base heater specifications, then matches the fin material, size, spacing, and form to the required air-heating application. This gives you a finned tubular heater matched to your airflow and temperature requirements, helping you maintain stable operation and reduce premature replacements caused by unsuitable materials or fin configurations.
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JIEO Finned Tubular Heater Factory & OEM Process
JIEO provides build-to-print OEM manufacturing for custom finned tubular heaters. Submit the finalised production drawings, electrical specifications, and quantities, and we will manufacture the heater set according to your requirements.
01
Submit Your Production Drawing
Send us the confirmed heater drawing, including dimensions, voltage, wattage, terminal positions, cable requirements, and order quantity.
02
Technical Review and Quotation
JIEO engineers review the drawing for manufacturing feasibility and check the dimensional and electrical specifications. If any information is missing or inconsistent, we will contact the customer for clarification before issuing the final quotation.
03
Order and Specification Confirmation
After the quotation is accepted, we confirm the order quantity, production drawing, electrical specifications, delivery requirements, and packaging instructions.
04
Manufacturing and Inspection
The heater set is manufactured in accordance with the confirmed drawing. Critical dimensions and agreed electrical parameters are checked before the order is released for packing.
05
Packing, Shipment, and Installation Support
The heater is wrapped in bubble wrap or foam padding and packed into cardboard or wooden boxes. Shipped by express, air, or sea.
Frequently Asked Questions
Ask JIEO EngineersHow does a finned tubular heater compare with an open-coil heater?
A finned tubular heater encloses the resistance wire inside an insulated metal sheath, making it safer and better protected for industrial air heating. An open-coil heater uses exposed resistance wire, so it requires more protection from accidental contact, dust, and other contaminants.
How do airflow and target outlet temperature affect finned tubular heater selection?
Higher airflow carries heat away from the fins faster, so the heater can generally operate at a higher watt density. With low airflow or a high target outlet temperature, JIEO normally uses a lower watt density or increases the heated length and finned surface instead of simply adding more wattage to the same heater size, helping prevent the element from running too hot.
Can a finned tubular heater be used outdoors or in humid conditions?
Yes. For general humid conditions, SS304 or SS316L sheaths with stainless-steel fins and moisture-sealed terminals are commonly used. For more demanding outdoor or corrosive environments, contact a JIEO engineer to confirm the sheath material, sealing, and terminal protection.
What affects finned tubular heater price and lead time?
Price is mainly affected by the material, heater dimensions, fin and mounting requirements, electrical termination, and order quantity. Standard straight, U- and W-shaped finned tubular heaters are typically produced within 7–15 days. For large-volume or stocking orders, JIEO can arrange batch production and staged deliveries according to the required schedule.
Why is my finned tubular heater not producing enough heat?
If the heater is energized but fails to reach the target temperature, check the wiring first and confirm that all heating sections are functioning. One tubular element may have an open or burned resistance wire, reducing the total heating output. If there is no heat at all, check the power supply, wiring connections, fuse, and controller before replacing the heater.
What should be considered when installing a finned tubular heater?
Keep sufficient clearance around the fins for airflow, support the heater at the mounting points, and avoid blocking the heated surface. Terminals and lead connections should be positioned away from the hottest airflow whenever possible.
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