As the name suggests, bundle rod heater consists of circular ceramic beads that hold the heating elements. Also known as Tubothal Heating elements or Bayonets, they are designed for long life and maintenance free operation. The elements can be provided in almost any length but the standard dimensions available are 68 to 170 mm (2.6 to 6.6 inch). These heaters can be used as standalone elements or inside radiant tubes. Because of the ingenious design, Bundle rod heating elements deliver a much higher power (up to 45kW) than conventional cartridge heaters. In combination with the Kanthal APMKanthal APMT radiant tubes, a system is created which delivers high power, is rugged, versatile and needs low maintenance. Designed & manufactured in low voltages for faster heating in order to achieve temperatures quickly, these heaters can be mounted horizontally or vertically. Either NiCr alloy or FeCrAl alloy can be used as heating element. For temperatures up to 2100°F (1150°C), Austenitic (NiCr) alloy (8020 or 7030) and for temperatures up to 2597°F (1425°C), Ferritic (FeCrAl) alloy can be used. A comparison between bundle rod and cartridge heaters shows their effectiveness:

As the name suggests, bundle rod heater consists of circular ceramic beads that hold the heating elements. Also known as Tubothal Heating elements or Bayonets, they are designed for long life and maintenance free operation. The elements can be provided in almost any length but the standard dimensions available are 68 to 170 mm (2.6 to 6.6 inch). These heaters can be used as standalone elements or inside radiant tubes. Because of the ingenious design, Bundle rod heating elements deliver a much higher power (up to 45kW) than conventional cartridge heaters. In combination with the Kanthal APMKanthal APMT radiant tubes, a system is created which delivers high power, is rugged, versatile and needs low maintenance. Designed & manufactured in low voltages for faster heating in order to achieve temperatures quickly, these heaters can be mounted horizontally or vertically. Either NiCr alloy or FeCrAl alloy can be used as heating element. For temperatures up to 2100°F (1150°C), Austenitic (NiCr) alloy (8020 or 7030) and for temperatures up to 2597°F (1425°C), Ferritic (FeCrAl) alloy can be used. A comparison between bundle rod and cartridge heaters shows their effectiveness: