Our Products
Band Heaters

WATTCO Band heaters can be found in several types of dimensions, wattages, voltages and material. Mica band heaters are an inexpensive form of heating that surround pipes and tubes that require external indirect heating. Pipe heating, drum heating, barrel heating normally used for oils, lubricants,or any other circular applications. Band heaters use electric heating (NiCr wire) to heatup the external surface of drums or pipes for a gradual heat transfer. Band heating is an indirect form of heating and offer safety when heating volatile explosive substances as well as pipes or containers that cannot otherwise be heated using direct heating methods. Industrial band heaters can be made with NEMA 1 terminal boxes or NEMA 4 moisture resistant terminal boxes that protect terminations and have the option of a thermostat or thermocouple digital controllers to help control and regulate an applied heat. Insulation is also required to help direct the heat to your application rather than experience heat loss, and slower heatup time.

Band heaters from WATTCO are the ideal solution for high watt densities and high operating temperature applications, especially for the plastics industry. The various types of band heaters available at WATTCO include mica insulated band heaters and ceramic band heaters.  

  • INDEPENDENT STRAP

    Straps are tightly clamped around the cylinder's surface and distribute the drawing force uniformly around the band heater. This force is transferred to the inside windings and improves heat transfer by providing effective surface contact and eliminating air gaps.

  • BUILT-IN

    Same features as the independent strap. The top sheet is made into a strap by placing barrel nut fasteners on either side of the gap. Barrel nuts are used for holes and cutouts, as an alternative to independent straps

  • SPOT-WELDED

    Design is similar to that of the built-in barrel nut. Made of an independent strap fastener that is spot welded to the top sheet on each side of the gap. This type of clamping mechanism is used to accommodate a heated section below the fastener.

  • FLANGE LOCK-UP

    The most economical clamping mechanism. Designed for narrow heaters.

  • WEDGE LOCK

    Basic design for limited space above the heater.
    Composed of clamp slides (wedge shape) on the lips of the heater on either side of the gap.
    Standard height between the inner diameter and the highest point of the wedge lock is 5/16”

  • LATCH AND

    clamp releases with a flip of thumb.
    In the fastened position, the spring-loaded ¼-20 bolt absorbs the thermal expansion.

  • HINGES

    Designed for a two-section heater band.
    A piano hinge is required on one side of the heater. Any other type of clamp can be used on the other side.
    Clearance between the 2 sections of the hinge’s side is 5/16”

  • SPRING-LOADED

    Made of independent straps, built-in barrel nuts, and spot-welded straps
    with longer screws with die springs.
    Springs tightly affix the band heater for thermal expansion.
    ¼-20 screws included.

  • CLAMPING PADS

    Designed for two-section partial heaters. If a complete band heater cannot be used due to an obstruction, a large gap must be created in order to fasten the heater to the cylinder on either side of the gap. Do not use clamping pads on both sides of the same section of the heater. Thermal expansion may cause the heater to detach from the cylinder.

TERMINAL HOUSINGS
Band Heater built-in barrel nuts
band heater spring loaded barrel nuts
Band Heater with armor cabling
band heater with clamping pads
band heater with hinges
band heater with independant strap
band heater with latch and trunion
band heater with spot welded straps
band heater with stainless steel braid
Flanged lock-up band heater
wedge lock

• Nickel-chrome wire in a outer wall composed of interlocking ceramic tiles
• Inside medium-high temperature heaters up to 1200°F
• Outside shell temperature: 350° - 450°F
• Built-in ceramic fibre insulating mat
• Stainless steel jacket
• Minimum diameter: 2”
• Minimum width: 1”
• Thickness with ¼” insulation: 5/8”
• Regular gap: 3/8
• Maximum watt density: 45 w/in2
• Broad range of terminal types and thicknesses of ceramic fiber insulation mats

 MICA BAND HEATERS
     o Injection molding
     o Blow-molding
     o Plastic extrusion
     o Container, pipe, or tank heating
     o Pharmaceutical applications
     o Applications in the food industry

BENEFITS

• Energy efficient
• Energy saver
• Highly flexible
• Durable
• Maintains heat
• Provide uniform heat distribution
• CSA, CE and UL certified

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