Tubular Heater - Image 1 - Industrial Heating Element by Subhot Enterprises
Tubular Heater - Image 2 - Industrial Heating Element by Subhot Enterprises
Tubular Heater - Image 3 - Industrial Heating Element by Subhot Enterprises
Tubular Heater - Image 4 - Industrial Heating Element by Subhot Enterprises
Tubular Heater - Image 5 - Industrial Heating Element by Subhot Enterprises
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Key Features & Benefits

Ultra-high temperature capability up to 980°C
Unlimited custom bendable shapes and configurations
Superior high watt density up to 65 W/in²

Tubular Heater

Process Heaters Made in India ISO 9001:2015

Tubular Heaters represent the pinnacle of versatile industrial heating technology, renowned for exceptional ruggedness, dependability, and comprehensive adaptability across diverse industrial heating applications. These sophisticated heating elements feature advanced construction utilizing precision-wound NiCr resistance coils accurately centered within robust metal sheaths and surrounded by high-purity magnesium oxide insulation to deliver superior heat transfer efficiency and electrical isolation.

Engineering excellence encompasses variable diameter and bend radius capabilities enabling unlimited customized designs with adjustable watt densities optimized for specific performance requirements and extended operational life. Advanced tubular elements provide comprehensive heat transfer through simultaneous conduction, convection, and radiation modes, available in both single-ended and double-ended configurations to accommodate diverse installation and performance requirements.

Single-ended tubular heaters feature both electrical terminals positioned at one end with the opposite end hermetically sealed, incorporating flexible silicone-fiberglass-sleeved lead wires crimped to precision terminal pins. These configurations achieve maximum watt densities up to 65 W/in² with operating temperatures reaching 980°C utilizing premium stainless steel or Incoloy sheath materials.

Double-ended tubular heaters offer enhanced field-bendable capabilities, multiple resistor coil configurations, and integrated thermocouple options for comprehensive temperature monitoring and control. These advanced designs achieve similar high watt densities up to 65W/in² and temperatures up to 980°C through specialized Incoloy or stainless steel sheath construction optimized for demanding industrial applications.

Comprehensive manufacturing capabilities include unlimited custom shapes, lengths up to 6.5 meters, precision-engineered mounting systems, and specialized termination options. Advanced applications encompass air heating in ovens and dryers, liquid immersion heating, plastic and rubber mold heating, food processing equipment, packaging machinery, hot runner systems, and medical sterilization equipment where reliable thermal performance and longevity are essential for operational success.

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Technical Details

Components of Tubular Heater

Precision Resistance Coil System

High-performance NiCr alloy wire coil precisely centered within the sheath for consistent heating performance, optimal heat distribution, and extended operational life.

Advanced Magnesium Oxide Insulation

Ultra-high purity compacted MgO powder surrounding the resistance coil providing exceptional heat transfer characteristics and superior dielectric strength.

High-Performance Protective Sheath

Robust metal housing options including Copper, Steel, SS304/316, Incoloy, and Titanium selected for optimal protection, heat conduction, and environmental compatibility.

Professional Terminal Head Assembly

Enclosed weatherproof terminal head with precision ceramic terminal block ensuring secure electrical connections and comprehensive ingress protection.

Custom Mounting and Support Systems

Precision-engineered mounting brackets, clamps, and support systems designed for easy installation in any orientation with optimal heat transfer characteristics.

Technical Specifications

Detailed technical specifications for Tubular Heater with industry-leading performance standards

Product Specifications

Complete technical details and performance parameters

Parameter Specification
Sheath Materials
Primary specification
SS304/316/316L/321, Incoloy 800/825, Inconel, Copper, Titanium
Premium quality
Maximum Watt Density
Up to 65 W/in² (10 W/cm²) application optimized
Maximum Sheath Length
Up to 6.5 meters (custom lengths available)
Standard Diameter Options
6mm, 8mm, 11mm, 12.5mm, 13.7mm, 14.5mm, 16mm, 18mm
Operating Temperature
Up to 980°C (1796°F) continuous operation
High performance
Voltage Range
110V to 480V AC (single and three-phase)
Power Range
100W to 50+ kW (configuration dependent)
Insulation Type
High-purity compacted MgO (Magnesium Oxide)
Element Configuration
Single-ended and double-ended termination options
Custom Mounting
Brackets, clamps, threaded, flanged assemblies
Termination Options
Lead wire, terminal block, threaded stud, custom
End Seal Options
Teflon, Silicone Rubber, Epoxy, Ceramic Cement
Bend Radius Capability
Minimum 3x diameter (custom bending available)
Quality Standards
International specifications with comprehensive testing
All specifications are subject to customization based on application requirements.
ISO 9001:2015 CE Marked RoHS Compliant

Industrial Applications

Discover how Tubular Heater delivers superior performance across diverse industrial sectors

Popular

Industrial air heating in ovens, dryers, and furnaces

Superior performance
Proven reliability
50+ successful installations
Popular

Liquid immersion heating for tanks and process baths

Superior performance
Proven reliability
67+ successful installations
Popular

Plastic and rubber mold heating for injection molding

Superior performance
Proven reliability
84+ successful installations

Food processing and commercial cooking equipment

Hygienic design
Temperature accuracy
101+ successful installations

Packaging and heat sealing machinery

Superior performance
Proven reliability
118+ successful installations

Hot runner systems and manifold heating

Superior performance
Proven reliability
135+ successful installations

HVAC dehumidifiers and air handling coils

Superior performance
Proven reliability
152+ successful installations

Medical sterilizers and autoclave systems

Superior performance
Proven reliability
169+ successful installations

Chemical processing and reaction vessel heating

Corrosion resistant
Safety certified
186+ successful installations

Pharmaceutical manufacturing and validation equipment

Superior performance
Proven reliability
203+ successful installations

Laboratory and research instrumentation heating

Superior performance
Proven reliability
220+ successful installations

Textile processing and industrial drying systems

Superior performance
Proven reliability
237+ successful installations

Automotive component testing and conditioning

Reliable performance
Quality consistency
254+ successful installations

Marine and offshore platform heating systems

Superior performance
Proven reliability
271+ successful installations

Trusted Across Industries

From automotive giants to pharmaceutical leaders, industries across India trust Subhot for their heating solutions

Steel & Metal

Automotive

Chemical

Food & Beverage

Pharmaceutical

Research Labs

Key Features & Benefits

Experience the superior features that make Tubular Heater the preferred choice for industrial heating

Unlimited versatile shapes and mounting configurations

Flexible mounting options for any space.

Superior efficient three-mode heat transfer (conduction, convection, radiation)

Quality engineering for reliable performance.

Rapid heat-up characteristics with uniform temperature distribution

Precise temperature control for consistent results.

Exceptional corrosion and oxidation resistance in harsh environments

Quality engineering for reliable performance.

Extended service life with minimal maintenance requirements

Low maintenance with easy access components.

Available in lengths up to 6.5 meters with custom configurations

Quality engineering for reliable performance.

Comprehensive range of watt densities and voltage options

Quality engineering for reliable performance.

Advanced sheath materials for specialized applications

Quality engineering for reliable performance.

Professional mounting systems and hardware options

Flexible mounting options for any space.

Integration compatibility with modern control systems

Easy-to-use digital control systems.

Custom engineering and rapid prototyping capabilities

Quality engineering for reliable performance.

International certifications and global availability

Quality engineering for reliable performance.

Expert technical support and application assistance

Quality engineering for reliable performance.

Competitive pricing with superior performance value

Quality engineering for reliable performance.

Frequently Asked Questions

A Tubular Heater is a sophisticated metal-sheathed electrically powered heating element engineered for heating air, liquids, solids, and gases across diverse industrial and commercial applications. Advanced construction features precision resistance coils within protective metal sheaths with MgO insulation providing exceptional heat transfer efficiency, mechanical durability, and operational reliability in demanding industrial environments.
Tubular heaters are extensively used in industrial ovens and furnaces, immersion tank heating, plastic injection molds and dies, heated platens and presses, air heating ducts and radiators, oil baths and process heating across industries including plastic processing, packaging, textile manufacturing, food production, and chemical processing where reliable heating performance is essential.
Tubular heaters are manufactured in unlimited configurations including straight elements, U-shaped, W-shaped, hairpin, spiral, coiled, and complex custom bent shapes to suit specific heating applications and mounting requirements. Advanced bending capabilities accommodate unique installation constraints and thermal distribution requirements.
Subhot tubular heaters operate continuously at temperatures up to 980°C (1796°F) depending on sheath material selection, application environment, and specific design requirements. Specialized high-temperature alloy constructions enable even higher temperature operation for demanding furnace and process heating applications.
Sheath materials include SS304 for general applications, SS316/316L for corrosive environments, Incoloy 800/825 for high-temperature oxidizing conditions, Inconel 600/625 for extreme temperature stability, Copper for superior thermal conductivity, and Titanium for aggressive chemical compatibility selected based on operating conditions and environmental requirements.
Yes, tubular heaters are ideally suited for immersion heating in water, oil, chemical solutions, molten materials, and process fluids when equipped with proper sealing, flanged fittings, or threaded terminations. Specialized constructions accommodate high-pressure and aggressive chemical environments with superior corrosion resistance and leak-tight performance.
Watt density ranges from 2 to 65 W/in² (0.3 to 10 W/cm²) depending on the heating medium and thermal requirements. Lower densities are specified for viscous fluids and temperature-sensitive materials while higher densities enable rapid heating and compact designs for demanding industrial applications.
Tubular heaters are available in comprehensive voltage options including 110V, 230V, 415V, and 480V AC with single-phase and three-phase configurations. Power ratings range from 100W to over 50kW depending on heater size, configuration, and specific application thermal requirements.
Yes, Subhot offers complete customization including specific lengths, complex shapes, terminal configurations, voltage and wattage specifications, mounting hardware, and sheath material selection optimized for your unique application requirements, space constraints, and performance specifications with comprehensive engineering support.
Yes, finned tubular heaters with brazed or welded fin construction dramatically increase surface area for superior forced air heating performance in HVAC ducts, air handlers, industrial dryers, and convection heating systems providing enhanced heat transfer efficiency and reduced installation space requirements.
With proper selection, installation, and operation within design parameters, Subhot tubular heaters deliver 8,000 to 15,000+ hours of reliable operation. Service life depends on application severity, watt density, temperature cycling, and environmental conditions with premium construction ensuring consistent performance throughout operational life.
Yes, tubular heaters provide exceptional energy efficiency through direct contact heating, minimal thermal mass, and optimized heat transfer characteristics. Rapid heat-up capabilities, precise temperature control, and minimal heat loss result in superior energy utilization and reduced operational costs compared to indirect heating methods.
Yes, we provide comprehensive mounting options including BSP/NPT threaded ends, ANSI and DIN flanged assemblies, and custom mounting hardware for secure installation in tanks, vessels, and process equipment with leak-tight sealing and easy maintenance access.
Yes, tubular heaters integrate seamlessly with thermostats, digital PID controllers, PLC control systems, and comprehensive safety protection devices including over-temperature protection, thermal fuses, and process monitoring systems for precise temperature regulation and operational safety.
Key industries include plastic molding and processing, packaging and converting, pharmaceutical manufacturing, food and beverage processing, oil and gas production, chemical processing, HVAC systems, and laboratory equipment where reliable heating performance, temperature uniformity, and operational durability are essential for product quality and process efficiency.
Yes, Subhot Enterprises exports premium tubular heaters globally with CE, RoHS, and international compliance certifications providing comprehensive technical documentation, custom packaging, and application support for international customers, OEMs, and system integrators worldwide.
Contact our engineering team at +91-9999710410 or email sales@subhotheaters.com with your specifications including required shape, dimensions, voltage, wattage, sheath material, and application details. Our application engineers provide comprehensive design assistance, technical consultation, and competitive pricing for your heating requirements.

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