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Tel: 1-925-706-7433

Ogden Chromalox Aluma Flex Heaters
Ogden / Chromalox


Aluma Flex Heaters

The element utilized in the Aluma-Flex Band Heater is the highly efficient, rugged, long lasting tubular heater pressed in a grooved aluminum extrusion. The combination of the tubular heater in exact contact with the excellent thermal conducting aluminum extrusion create a quick responding band heater with uniform sheath temperatures for precise process heating. With the termination a significant distance from the part being heated and no other place for contaminants to enter, the Aluma-Flex is virtually indestructible. A low expansion alloy strap with mounting hardware allows the assembly to be tightly drawn to the part to be heated. With sheath temperatures to 650° F attainable, the Aluma-Flex Band Heater is ideal for use on barrels of plastic extruders, injection molding machines, dies and die heads of extruders and blow molding equipment, or, within temperature limitations, any cylindrical surface.

  • Rugged, long lasting design
  • Excellent heat transfer from element to sheath and sheath to heated part
  • Virtually contamination proof
  • Uniform sheath temperature
  • Easy installation
PDF File Catalog Sheet
1-1/2" wide 2-1/2" wide 3" wide 4" wide
A 1" 1-1/2" 1-1/2" 2"
B 3/4" 1-13/16" 2" 3-1/4"
C 3-3/8" 4" 4" 4"
D 2" 2-3/4" 3-5/8" 4-1/4"
E 2" 2-3/8" 2-3/8" 3-3/8"

Aluma Flex Heaters 1

Aluma Flex Heater with Type C Terminal BoxAluma Flex with M7 Terminal enclosures

Aluma Flex Wiring TerminalsAluma Flex Terminal Box


  • Resistance Tolerance: + 10%, - 5%
  • Wattage Tolerance: + 5%, - 10%
  • Maximum Volts: 277 each half, 30A
  • Maximum Watt Density: 40 watts/sq. in. on sheath
  • Minimum I.D.: 3-1/2" on 1-1/2" and 2-1/2" wide. 5" on 3" and 4" wide.
  • Maximum I.D.: Consult Engineering
  • Thickness: 1/2"
  • Standard Gap when Tightened: 1/4" up to 12" I.D.
    Gap increases with diameter to compensate for thermal expansion.

Additional Features Available:

  • Type BA: Standard terminal box pre-wired and fitted with conduit (12" standard length). Plug can be attached to conduit
  • Type P: Probe holes
  • Type L: Spring loaded screw for thermal expansion compensation (over 18" diameter).
  • Type I : Design for heating cylinder internally.


For Price quote please fill out the Order Form and Fax a copy to 925-706-2583 or e-mail to Order Form

Band - Aluma Flex

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