What is a band heater and what is it used for?
A band heater is a ring-shaped electrical heating element that is clamped around cylinders, nozzles or other cylindrical components and transfers heat by direct contact. In plastics processing, it is the central heating element of the plasticising unit.
In Austrian industry, band heaters are particularly relevant for injection moulding machines, extrusion lines and blow moulding machines. The decisive factor is not just the diameter, but the complete design: construction, wall structure, wattage, connection position, holes for sensors and the heat dissipation in operation must all match.
Keller, Ihne & Tesch Ges.m.b.H is the contact for band heaters in Haag, Lower Austria: Bahnhofstraße 90, 3350 Haag, telephone +43 7434 43880-0, email info@kitmail.at.
Cylinder band heaters from Keller, Ihne & Tesch
For barrel heating, Keller, Ihne & Tesch supplies four product families. Which design fits depends on temperature, power requirement, installation space and process.
ZAK compact aluminium band heaters
Melt-tight, contour-matched barrel heating with homogeneous heat distribution.
M/MC mica band heaters
Robust standard solution for barrel heating in injection moulding and extrusion.
KHK ceramic band heaters
Ceramic heat storage for higher temperatures and uniform radiation.
Z mica band heaters
Proven mica construction for high operating temperatures with a slim profile.
Nozzle band heaters for small, highly loaded heating zones
At the machine nozzle, installation space, contact area and response time are what count. Three product families are available for this:
Which construction is the right choice and when is shown in the band heater decision guide; the design by wattage and zones is explained in the article designing band heaters correctly.
Band heater manufacturer or dealer: what is the difference?
Many companies in Austria buy band heaters through dealers or distributors. This can work for common dimensions. As soon as special dimensions, holes for sensors, special connection positions or higher temperatures are required, the direct route to the manufacturer is usually much more reliable.
Directly from the manufacturer
- Special dimensions, holes and cut-outs to match the machine
- Technical advice on construction and power density
- Direct clarification of connection position and sensor position
- Design for spare parts, small series or OEM series
- Contact in Austria
Through a dealer or distributor
- Often focused on common stock dimensions
- Special designs depend on external availability
- Technical queries go through several parties
- Delivery time depends on stock
- Less influence on construction and design
For industrial applications, availability alone is not what counts.
More important is whether construction, power density, connection position and heat dissipation match the machine and the process.
What information does a band heater enquiry need?
The more precise the data, the faster a band heater can be quoted and designed in a technically sound way. The following details help with an enquiry:
Telephone: +43 7434 43880-0 · Email: info@kitmail.at · Keller, Ihne & Tesch Ges.m.b.H, Bahnhofstraße 90, 3350 Haag, Lower Austria.
Frequently asked questions about band heaters in Austria
What are the delivery times for band heaters?
Custom designs are manufactured after technical clarification, for DG/DGS nozzle band heaters for example within two to three weeks. Common designs are available at shorter notice.
Can single pieces also be ordered?
Yes. Band heaters can be requested as single pieces, spare parts, samples, small series or large series.
Which band heater replaces a defective third-party product?
Inner diameter, width, wattage, voltage and connection position of the old part are sufficient to assign a suitable product family. A photo or the old part itself speeds up clarification.
How much does a band heater cost?
The price depends on construction, diameter, width, wattage, connection design and quantity. For a reliable quotation, the key data of the old part or a drawing is usually sufficient.
Are there band heaters with UL approval?
ZAK compact aluminium band heaters and M/MC mica band heaters are available as UL and cUL versions for the North American market.
Enquire about band heaters in Austria
Send inner diameter, width, wattage, connection position or a photo of the old part. We check the right product family for your machine.