Band heaters

The heating band is used for plasticizing plastics in injection molding machines and for heating selected sections of industrial installations. The band housing is made of stainless steel. In micanite heaters, the heating elements are wires and resistance bands wound on a micanite insulator.

Application
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  • Food industry (molds)
  • Chemical industry
  • Footwear industry
  • Furniture industry
  • Pharmacology
  • Plastic industry (forms)
  • Automotive industry(injection molding machines, molds)

Characteristics
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Power: 6 W/cm2*

  • Voltage: according to customer guidelines*

Operating temp.: 350oC*

Min. diameter: 30-1000 mm*

Width: 30-2000 mm*

Thickness: approx. 2,5-5 mm*

Covering material: Micanite or stainless steel AISI 304*

* These values (parameters) are examples and do not constitute an offer within the meaning of art. 66 of the Civil Code. Each heater is designed individually.

Technological processes
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  • Cutting the pipe
  • Micanite insulators cut according to the heater design
  • Backfilling the heating element
  • Completing the heating element with the cover sheet
  • Profiling the heater to a given dimension according to the order
  • Making a power connection according to the design

 

Construction
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Performance characteristics
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Thanks to the use of AISI 304 steel cover, the heaters can work even in an aggressive environment. Appropriately dense winding of the resistance element ensures an even temperature over the entire surface. The individual design of the winding of the resistance element allows to make holes / cutouts exactly according to customer needs.

The current output from the heater is made of nickel wire in fiberglass insulation. It is possible to install temperature sensors in the heater (Pt100, J or K Thermocouples , bimetallic switch). An aluminum heat sink can be used in micanite heaters, which allows work in heating and cooling sections.

Types of current outlet
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  • Types of current outlet
  • Wires
  • Bead wires (max. L duct. 300 mm)
  • Bead wires + handle
  • Fireplace: a) 90* b) 45*
  • Flat-tangent
  • Cube
  • Cube in a can
  • Cube in a vertical can
  • WG2 iron plug, KCOO 2 A or B plug
  • M5 A and B screw

Power distribution
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Band heaters can be made with different power distribution. Appropriate distribution of heating power density on the surface of the element gives the ability to control the temperature. This technology is used to eliminate heat loss at the ends of heaters and to heat selected zones.

Ceramic Band
Max. temperature 650oC 350 oC
Adjusting the heater dimension Determined by the dimensions of the ceramics +/- 10 mm +/- 2 mm
Surface power 10 W/cm2 6 W/cm2
Assembly Possibility to bend the heater to the diameter of the element No bending (only sliding the heater along the cylinder axis)
Flood sensitivity Very high Average
Thermal inertia Average Very low
The possibility of using a heat sink Yes Yes
Outer insulating band Yes No
Mechanical resistance Low High
Arrangement and execution of holes Limited Free