Bobbin Immersion Heater

  • Customizable- power rating, voltage, resistance, dimensions
  • Power rating- Upto 12kW
  • Watt Density- 1 to 10W/sq. cm
  • Temperature range- Upto 600°C
  • Tube Material- Stainless steel, Incoloy, Cast alloys
  • Can accomodate- RTD, thermocouple, thermostat
In stock

Part Code: BHP



Marathon make Ceramic Bobbin Heaters are fabricated from high temperature factory insulators in various diameters and lengths for any voltage or wattage within manufacturing limits. Bobbin heaters are made with sheathed and without sheathed material.

The sheath material ranges from nickel plated mild steel, Income alloys and stainless steel. Resistance wire are supported on refractory insulators and connected to a terminal block at one end. Thermo well can be provided for accurate temperature sensing or other controls can be provided as well. They are normally manufactured for horizontal mounting, but may be specially designed and constructed for vertical installation.  Designed for any voltage or wattage within manufacturing limits. These Bobbin Heaters consist of elements, which are exposed partially in air for better transmission of heat. Also, when it is inserted into a radiant/immersion tube, it offers a large heated area to the liquid or semi-solid to be heated.


Sheath material Stainless Steel, Incoloy, Cast Alloys
Maximum Temperature Upto 600°C
Power Rating 12kW
Bobbin size

Standard: 25,30,36,42,45,57,93

other customizable size available

Length of Tube

300 to 2800mm customizable

Terminal Box

MS, IP 54 Standard, IP 66 water proof terminal box


Key Features

  • Furnace heating upto 600°C
  • Customizable power, voltage, dimensions to meet individual requirement.
  • Simple and low cost installation
  • Ease of maintenance and repair
  • Versatile and non-polluting
  • Energy efficient as 100% of heat generated is within the




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