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Application of band heating elements

Band heating elements have multiple industrial applications, but mostly are used in the mechanical engineering for the heating of short pieces pipework and in the synthetic and rubber processing industry. Examples are extrusions and spraying machines. The band heating elements are also usable as drum heaters.

Types of band heating elements

Band heating elements can be divided based on the isolation material, like mica or ceramics. The choice for one of these materials is depending of the necessary power and working temperature. An element can exist of multiple segments which are connected to one another because of clamps or hinges.

Technical description

Band heating elements are circular heating elements. These are build with a resistance wire with electrical insulation by mica or ceramic isolation. They are mostly covered by a metal sheath. These sheath’s can be of zinc or aluminized metal sheething or stainless steel.
Elements with a diameter above the 500mm always needs to exist with two or more segments. For these electrical connection are many different options. For example to place thermocouple and include the sticking out parts, this can prevent the elements from holes or cutouts.

Nose elements

Nose elements are just like mica elements build with a resistance wire with electrical insulation by mica isolation. The sheath does not exist of two lose plates but of a flat rolled brass. Because of this rolling a real smooth area and a good compaction of the element is created which makes sure of a great heat conduction.

Technical specifications

Mica isolated

Maximum temperature
around 340 degrees Celsius

Maximum watt tax
4,5W / cm2

Diameter
50 – 380 mm

Height
50 – 420 mm

Power
variable

Ceramic isolated

Maximum temperature
around 900 degrees Celsius

Maximum watt tax
9W / cm2

Diameter
60 – 630 mm

Height
30 – 450 mm

Power
variable

Nose element

Maximum temperature
around 450 degrees Celsius

Maximum watt tax
6,5W / cm2

Diameter
25 – 100 mm

Height
20 – 80 mm

Power
variable

Isolation
mica

Connection directions
axial / radial / tangential