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

Technical 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)

Construction

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

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

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