PRODUCTS»SPLIT SHEATH CARTRIDGE HEATERS
Split Sheath Cartridge Heaters
Split sheath heaters offer a powerful upgrade from standard cartridges. Once energised, the sheath expands to create a tight fit inside the bore, maximising thermal transfer.
CARTRIDGE HEATERS
Split Sheath Cartridge Heaters for Industrial Applications
Heatox split sheath cartridge heaters are a premium solution for challenging industrial environments where high thermal performance and maintainability are critical. Designed to expand slightly during operation, these heaters ensure near-perfect contact with the bore wall, dramatically improving heat transfer and energy efficiency. When powered down, the sheath contracts – making removal effortless, even after prolonged use or carbon build-up.
Ideal for tooling applications, packaging jaws, and mould dies where traditional cartridge heaters can seize over time, our split sheath heaters reduce downtime, prevent bore damage, and maintain consistent heating performance cycle after cycle. Their unique construction also allows for higher watt densities, extended service life, and greater thermal responsiveness compared to standard heaters.
Manufactured to tight tolerances and available with custom sheath materials, integral thermocouples, and moisture-sealed options, Heatox split sheath heaters are the intelligent upgrade for systems where reliability and serviceability matter.
Where They’re Used
Tooling and mould dies with carbon or scale build-up
Applications where heater removal is difficult
Packaging and sealing jaws with high thermal cycling
OEM equipment where heater longevity is vital
Plastics, rubber, and composite forming machinery
Features & Benefits
Expands for improved fit and thermal conductivity
Retracts on cool-down, allowing easy removal
Reduced bore wear and carbon residue buildup
Lower energy consumption through improved efficiency
Long life even in contaminated or thermally stressful environments
Options
Built-in Type J or K thermocouples
Special alloy sheaths for corrosive atmospheres
Moisture-sealed ends
Custom diameters and lengths to fit legacy tooling
High-temperature lead wire insulation options
Available in watt densities up to 150 W/cm²
Cartridge Heaters
Our cartridge heaters are high-density cylindrical elements that offer efficient, localised heating in confined spaces.
Learn MoreTubular Heaters
Tubular heaters are versatile, robust elements used in air, liquid, and solid heating applications.
Learn MoreSplit Sheath Heaters
Split sheath heaters offer a powerful upgrade from standard cartridges. Once energised, the sheath expands to create a tight fit inside the bore, maximising thermal transfer.
Learn MoreThermocouples
Heatox supplies high-quality thermocouples for accurate temperature sensing in industrial and laboratory settings.
Learn More
304 Stainless Steel Sheaths
Ideal for oxidation resistance throughout many environments. 316 Stainless Steel and Incoloy® are also available upon request.
High Impact Ceramic Caps
Suitable for high vibration applications and prevent contamination. By employing deep holes in the cap, the fraying of leads is avoided when bent.
High Temperature Lead Wires
High-temperature lead wires are employed for working temperatures up to 550°C.
Nickel-Chromium Resistance Wire
Nickel-chromium resistance wire brings maximum heater life, we evenly wind it for a balanced heat distribution.
High Purity Magnesium Oxide
Selected for maximum thermal conductivity and maximum dielectric strength. It is highly compacted for optimal heat transfer.
Need a Custom Heating Solution?
Whether you’re designing for battery moulding, process heating, or specialised OEM applications – Heatox delivers precision-built industrial heaters to your specification.
