Nexthermal has been producing cartridge heaters since 1991, and our medium watt cartridge heaters have consistently and primarily been used in the rubber injection molding process. With our special rubber distributed wattage Nexthermal delivers a heat profile that improves speed and quality. Using our many years of experience producing cartridge heaters, Nexthermal can assist you in getting a dependable medium watt density cartridge heaters for your rubber injection molding needs.