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Edge Wound Heater

Edge Wound Heaters, also known as bayonet heaters, represent the pinnacle of high-performance industrial heating technology specifically engineered for demanding furnace applications requiring superior heat transfer efficiency and compact design solutions. These advanced ribbon heating elements feature a sophisticated construction methodology where premium NiCr (Nickel-Chromium) or FeCrAl (Iron-Chromium-Aluminum) alloy strips are precision wound on edge and strategically mounted on high-grade ceramic supports to deliver exceptional surface watt density and uniform heat distribution throughout the heating zone.

Up to 1050°C

Up to 65 kW

Custom sizes & shapes

  • High surface watt density for compact heating design
  • Rapid heat-up and recovery capabilities
  • Uniform temperature distribution across heating zones
  • Superior thermal efficiency and energy savings
  • See all 14 features
Overview

Product Description

Edge Wound Heaters, also known as bayonet heaters, represent the pinnacle of high-performance industrial heating technology specifically engineered for demanding furnace applications requiring superior heat transfer efficiency and compact design solutions. These advanced ribbon heating elements feature a sophisticated construction methodology where premium NiCr (Nickel-Chromium) or FeCrAl (Iron-Chromium-Aluminum) alloy strips are precision wound on edge and strategically mounted on high-grade ceramic supports to deliver exceptional surface watt density and uniform heat distribution throughout the heating zone. Manufactured using cutting-edge metallurgical techniques and superior alloy materials including NiCr 80/20, NiCr 70/30, and advanced FeCrAl compositions, these high-temperature bayonet heaters are capable of operating continuously at temperatures up to 1050°C while maintaining structural integrity and consistent thermal performance. The unique edge-wound ribbon design maximizes surface area exposure, enabling rapid heat-up capabilities and superior heat transfer coefficients compared to conventional rod or strip heating elements. These industrial-grade edge wound heating elements are available in extensive power ratings from 1 kW to 65 kW per element, making them ideally suited for diverse thermal processing applications including roller-hearth furnaces, pit furnaces, batch furnaces, aluminum tempering systems, exothermic gas generators, and specialized heat treatment equipment. The precision-engineered ceramic support system ensures optimal mechanical strength while providing electrical isolation and thermal stability under extreme operational conditions. Key technological advantages of these furnace heating elements include their ability to deliver high watt density outputs ranging from 5 to 15 W/cm², facilitating compact furnace designs without compromising heating performance. The advanced alloy compositions provide exceptional resistance to high-temperature oxidation, thermal cycling stress, and corrosive furnace atmospheres, ensuring extended operational life and reduced maintenance requirements compared to traditional heating systems. As an energy-efficient industrial heating solution, Edge Wound Heaters offer superior thermal efficiency through their optimized heat transfer design, reducing overall energy consumption and operational costs. The customizable mounting configurations, including both horizontal and vertical installation options, provide exceptional design flexibility for various furnace layouts and space constraints. Their modular construction enables simplified installation, maintenance, and replacement procedures, making them the preferred choice for industries seeking reliable, high-performance heating technologies with minimal downtime and maximum operational efficiency.
Why It Performs

Key Features

  • High surface watt density for compact heating design
  • Rapid heat-up and recovery capabilities
  • Uniform temperature distribution across heating zones
  • Superior thermal efficiency and energy savings
  • Exceptional resistance to thermal cycling stress
  • Customizable design and flexible mounting options
  • Extended operational life and reduced maintenance
  • Suitable for high-temperature furnace environments up to 1050°C
  • Advanced alloy compositions for oxidation resistance
  • Modular construction for easy installation and replacement
  • Precise temperature control capabilities
  • Environmentally friendly operation with minimal emissions
  • Cost-effective heating solution for industrial processes
  • Compatible with various furnace atmospheres and conditions
Build Quality

Construction

  1. 01

    Heating Ribbon

    Premium NiCr (80/20 or 70/30) or FeCrAl alloy ribbon wound on edge for maximum surface area exposure and efficient heat transfer. Advanced metallurgy ensures superior high-temperature performance and oxidation resistance.

  2. 02

    Ceramic Support

    High-purity alumina ceramic insulators providing exceptional mechanical strength, electrical isolation, and thermal stability. Precision-engineered for optimal ribbon support and uniform heat distribution.

  3. 03

    Sheath / Housing

    Optional high-temperature metallic or ceramic protective sheath for enhanced durability, corrosion resistance, and protection against mechanical damage in harsh furnace environments.

  4. 04

    Mounting Base

    Custom-engineered base plate with precision-drilled mounting holes for secure horizontal or vertical installation. Designed to accommodate thermal expansion and ensure stable heater positioning.

  5. 05

    Terminal Assembly

    Heavy-duty electrical terminals designed for high-current applications with superior connection integrity. Manufactured from high-temperature alloys for reliable long-term performance.

Technical Data

Specifications

Heating Alloy Material
NiCr 80/20, NiCr 70/30, FeCrAl (custom)
Power Rating
1 kW to 65 kW per element (custom)
Max Temperature
Up to 1050°C (1922°F) - NiCr, 1100°C - FeCrAl
Watt Density
5 to 15 W/cm² (custom)
Voltage Rating
240V AC, 480V AC (custom voltages available)
Diameter / Size
Custom – up to 160 mm diameter
Length
Custom – up to 2000 mm
Mounting Options
Horizontal, Vertical, Angular (custom)
Cold Resistance Tolerance
≤3%
Ceramic Support Material
High-purity Alumina (Al₂O₃)
Where It's Used

Applications

  • Roller-hearth furnaces for steel processing
  • Pit and batch furnaces for heat treatment
  • Aluminum tempering and annealing furnaces
  • Exothermic gas generators for controlled atmospheres
  • Heat treatment equipment for automotive components
  • Glass processing and forming furnaces
  • Ceramic firing and sintering furnaces
  • Powder metallurgy processing furnaces
  • Normalizing and stress relieving furnaces
  • Vacuum furnaces and controlled atmosphere systems
Questions

Frequently Asked Questions

An Edge Wound Heater, also called a bayonet heater, is a high-performance industrial heating element constructed by winding NiCr (Nickel-Chromium) or FeCrAl (Iron-Chromium-Aluminium) ribbon on edge and supporting it with precision ceramic insulators. This unique edge-wound construction provides maximum surface area exposure, high watt density, and uniform heat distribution in industrial furnaces, making it ideal for demanding thermal processing applications.

Worldwide Supply

Available In

We manufacture the Edge Wound Heater in India and export it to 20 countries. Choose yours for local supply details.

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