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Mica band heaters
Mica band heaters are widely used industrial heating elements for cylindrical surfaces such as extruder barrels, heads, and tanks. They consist of resistance wire or ribbon wound on mica insulation and enclosed in a stainless‑steel shell. The construction combines good heat transfer with a simple, durable design – ideal for mid‑temperature operation.
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Podstawowe parametry techniczne
Moc max
wg wytycznych klienta*
Napięcie
wg wytycznych klienta*
Temp. pracy
350°C*
Wymiary
⌀ 25-5000 mm*
Długość
Szerokość
20-250 mm*
Przekrój grzałki:
Prostokątny
Okrągły
Grubość
ok. 5 mm*
*Wymaga konsultacji z naszym działem technicznym.
Branże
No items found.
Specification
Zastosowanie
- Plastics industry – heating extruder cylinders, injection zones, heads and nozzles; heating pipes and transfer lines
- Chemical industry – heating process pipelines, tanks and mixers; maintaining viscosity of resins, glues and oils; heating dosing fittings and valves
- Pharma – heating cylinders and dosing nozzles; heating transfer tubing; stabilizing media temperature during filling
- Automotive – heating glue and sealant lines; heating dosing nozzles; maintaining temperature in vulcanization nests
- Footwear – heating glue lines and TPU/gum forming tools; maintaining temperature in stations
- Wood/furniture – heating press rolls and sleeves; heating glue lines; stabilizing temperature on laminating rolls
- Aerospace – heating resin lines and composite tool sleeves; maintaining temperature of structural adhesives
- Packaging – heating sleeves and cylinders in film lines; heating glue dosing valves; stabilizing sealing elements
- Textile – heating laminating rolls and cylinders; heating components in thermal‑transfer printing machines
- Rubber – heating vulcanization cylinders and sleeves; heating transfer lines with rubber compound; stabilizing mold temperature
- Paper – heating coating rolls; calender rolls; glue dosing fittings
- Foundry/metal – heating sleeves and cylinders in die‑casting machines; heating dosing nozzles and runners; maintaining melt transfer temperature
- Electronics – heating nozzles and sleeves in wire‑coating and epoxy dosing; stabilizing temperature for insulation processes
- Energy – heating oil lines and turbine fittings; auxiliary steam lines; stabilizing hydraulic circuits
Budowa Grzałki
Temperature sensor options:
- Thermocouple type J (up to 650°C)
- Thermocouple type K (up to 1000°C)
The specified temperature refers to the sensor’s maximum operating temperature, not the heater.
Additional option: An aluminum heat sink can be used with mica bands to operate in combined heat/cool sections.
Typy Grzałek
Wyprowadzenia prądowe
- Leads
- Beaded leads (max lead length 300 mm)
- Beaded leads with bracket
- Chimney outlet: a) 90° b) 45°
- Flat‑tangent outlet
- Terminal block
- Terminal block in box
- Terminal block in vertical box
- Iron plug WG2, KCOO 2 A or B
- M5 stud terminals (A/B)
Strefy Grzewcze
Differences between ceramic and mica band heaters
| Ceramic | Mica band | |
|---|---|---|
| Max. temperature | 650 °C | 350 °C |
| Dimensional matching | Limited by ceramic segment size ±10 mm | ±2 mm |
| Surface power density | 10 W/cm² | 6 W/cm² |
| Installation | Can be opened and wrapped to cylinder diameter | No opening; slide axially along cylinder only |
| Flooding sensitivity | Very high | Medium |
| Thermal inertia | Medium | Very low |
| External insulation jacket | Yes | No |
| Mechanical robustness | Low | High |
| Holes/slots execution | Limited | Flexible |
Wizualizacja budowy grzałki
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