Expertise directly
from the manufacturer

Technical articles, practical reports and application knowledge from over 90 years of experience in electric heating technology.

1932
Subject areas

Knowledge. Practice. News.

Basics & comparisons

Manufacturer or dealer: on the left handing over a purchased box, on the right a technician with a self-made heating element
Shopping July 2026

Manufacturer or dealer? How you can recognize the real manufacturer

Seven touchstones for buyers: response time, custom-made products, design, zone heating, factory tour and verifiable references - who really manufactures and who just buys.

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Practice August 2026

Band heater burnt out: identify the cause, avoid repetition

Melt, air gap, power density, connection or voltage: the five most common causes — and the diagnosis before replacement, so that the new band does not fail as well.

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Practice August 2026

Cartridge heater stuck: removal without tool damage

Controlled removal in six steps — penetrating oil, drift, heating the component — and the design with fit and removal option that keeps the next cartridge from jamming.

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Practice August 2026

Heating zone failure: element, sensor or controller?

A symptom table and two measurements separate the three suspects of the control chain — before the wrong part is replaced on suspicion.

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Error pattern from practice: loosened, carbonized connection terminal of a heating element due to vibration
Practice July 2026

Vibration loosens connectors and terminals on heating elements

Error pattern from practice: Vibration loosens the contact, the contact resistance increases, the terminal carbonizes. This is how you design the connection and element to be vibration-proof.

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Infothek Visual: 300 degrees Celsius in the machine and 80 degrees Celsius in use
Materials science June 2026

Choose thermoplastics correctly: material, morphology and temperature

Why processing temperature is not long-term use temperature and how amorphous or semi-crystalline structures limit the choice of material.

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PTFE-coated sealing plates and sample plates with non-stick surfaces
Non-stick June 2026

PTFE-coated sealing plates: non-stick, temperature and choice of material

Why 260 °C is the relevant limit, how PTFE layers are constructed and when coated panels or glass fabric tape make sense.

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44Min ZAK 55Min CHD
No longer
up to date?
ZAK · less energy · better heat distribution
Technical comparison May 2026

Why ZAK is the new standard for band heaters

Measured values ​​from the comparison: 44 instead of 55 minutes heating time, 6.4 instead of 8.15 kWh and up to 30% savings potential.

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HAKaluminium ΔTMore homogeneous
Cool
still classic?
HAK · less cooling energy · more stable cylinder
Technical comparison May 2026

Heating-cooling combinations: Why HAK guides the cylinder more stably

The comparison shows: HAK improves temperature homogeneity and cooling performance on the screw barrel and reduces the energy requirement for cooling.

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DAK450°C DMK550°C
Bend
still sheet metal?
Air gap · CNC machining centers · Contact surface
Technical comparison May 2026

DAK/DMK nozzle band heaters: Why precision beats the air gap

Why manually rounded sheet metal heating strips have dimensional deviations due to the system and thermally guide DAK/DMK through CNC-manufactured contact surfaces.

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BatchCirculating air · Chamber tactPass · Line
tempering oven
lay out
Process · Air flow · Batch · Atmosphere
Selection guide May 2026

Designing a tempering oven: Which type of oven is suitable?

Annealing is not a single type of oven. Target temperature, air flow, batch, atmosphere, documentation and cycle determine the right oven solution.

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kW Ω W A ΔT cm²
Browser tool
Calculate
instead of estimating
computer May 2026

Engineering calculator for electric heating technology

Four browser calculators for heating power, surface load, resistance and current as well as power loss on the tank.

Open calculator
80%
heat the
air gap
Contact area · Contact · Process
Expertise April 2026

80% heats the air gap

If band heaters do not fit neatly, the process will fail. Contact area, tolerance and design determine energy, service life and quality.

Read more
ZAKaluminium compact MMicanite MCMicanite comp. KHKCeramics Zmica
5 types of band heater
1 correct
Choice
Temperature · Geometry · Contact
Selection guide May 2026

Decision matrix band heaters: ZAK, M, MC, KHK or Z?

Factual comparison according to temperature range, geometry, contact area, sensor technology and economic efficiency.

View matrix
SeebeckThermal voltage
Type K PtRh COLD HOT
temperature
is measuring chain.
Type · Protective tube · Cable · Evaluation
Basics June 2026

Thermocouples: principle of operation, types and selection

Seebeck effect, IEC types, thermowells and typical measurement errors: what needs to be clarified before selecting a thermocouple.

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Resistance sensor June 2026

Resistance sensors in Austria: Pt100 directly from the manufacturer

Pt100, Pt1000, designs and custom-made products: what technology and purchasing should pay attention to when measuring industrial temperature.

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Basics May 2026

Thermocouple or resistance sensor? How to choose correctly

Both types of sensors measure temperature — under different conditions. When which type of sensor is the better choice?

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interpretation May 2026

Correctly dimension cartridge heaters: diameter, power, seat

Why drilling tolerance, surface load and heat dissipation determine service life and risk of failure.

Read more
Practical case June 2026

Cartridge heaters: Why more watts can cause failures

A practical case with 3300 W, 19 mm and 1293 mm shows why a 2200 W design can be better for heat dissipation.

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Band heaters August 2026

Buy band heaters in Austria: directly from the manufacturer

ZAK, M/MC, KHK and Z cylinder band heaters plus nozzle band heaters for injection moulding and extrusion — with technical advice in Austria.

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cartridge heaters May 2026

Buy cartridge heaters in Austria: directly from the manufacturer

cartridge heaters for injection moulding, extrusion, packaging and special machine construction: PE, PDE and HPS/HPZ with technical advice in Austria.

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From the application

FFS machines · Yoghurt cups
6 digits?
Temperature decides.
Packaging May 2026

When temperature homogeneity means six-figure savings

Why precise cast heating plates for yoghurt pots, FFS systems and thinner films decide on process reliability and material use.

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DAK
aluminium
DMK
Brass
If melt
triggers a standstill.
DAK / DMK · melt-tight · less downtime
injection moulding March 2026

DAK/DMK nozzle band heaters: Why tightness prevents standstills

Melt leakage, moisture and poor fit often lead to failures. Why a closed compact design can prevent standstills.

Read more
extrusion Jan 2026

KHK ceramic band heater at 450 °C: Use in extrusion

Standard band heaters reach their limits at high temperatures. An extruder relies on KHK and reduces wear.

Read more
Energy saving Dec 2025

30% less energy costs on the injection moulding machine

A processor retrofits 12 machines with thermal insulation pads. The annual savings exceed the investment after 5 months.

Read more

Meet us here

Oct
26
12.–16.
Fakuma
Friedrichshafen, Germany
30th Fakuma — Anniversary Edition. Leading trade fair for injection moulding, extrusion and thermoforming. Over 1,600 exhibitors expected.
Confirmed
Oct
28
18.–25.
K Mass
Dusseldorf, Germany
The world's leading plastics trade fair. Every three years in Düsseldorf. Next date after the successful K 2025.
Saved

From the group of companies

From the club kid
to the ski instructor
Commitment · Winter sports · Attitude
engagement June 2026

Why we support clubs: A story from the slope into the Ahrntal

About the Trappenberg Ski & Snowboard Club, two children who became ski instructors, and why regional commitment suits a family business.

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Technical advice
Michael Hackl
comes to you.
On site in Austria or via teams
Technical advice June 2026

Michael Hackl comes to you

On site throughout Austria or at short notice via teams: Keller, Ihne & Tesch supports customers with specific problems directly on machines, tools and systems.

Request advice
Ihne & Tesch Group
Leader.
Because warmth
process is.
Heating elements Furnace construction Sensors
positioning May 2026

Leader in industrial electric heating technology

Why the Ihne & Tesch Group not only supplies heating elements, but also masters industrial heating processes: vertical integration, furnace construction, sensors and application experience.

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Group of companies since 1932
Market leader.
Not claimed.
Proven.
1932 6 locations 480+ professionals
Group of companies May 2026

Market leader in electric heating technology: How to recognize leadership

Why leadership in electric heating technology does not come from volume, but rather from vertical integration, specialists, locations and responsibility.

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KITAustria
Thanks Herbert.
Welcome Michael.
Retirement · Handover · Hague location
Group of companies Apr 2026

Thank you, Herbert Derndorfer

KIT Austria says goodbye to Herbert Derndorfer in retirement. Michael Hackl takes over as successor at the Hague location.

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Cast iron heaters
Cast?
or just delivered?
aluminium · Brass
Plastics processing · Packaging industry
News May 2026

Cast iron heaters: What manufacturers can show and dealers cannot

Own foundry, CNC machining and technical responsibility for aluminium and brass cast heaters.

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Infothek Visual sand casting process and cast-in heating elements
production Jun 2026

Sand casting process: Why very complex castings need Lampertheim

Sand casting instead of chill casting: when very complex geometries, undercuts and cast tubular heaters determine the choice of process.

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Product display band heaters and special solutions at K 2025 Team at the Ihne & Tesch trade fair stand at K 2025 Technical discussion at the Ihne & Tesch Group exhibition stand at K 2025
Review
K2025
Products · Conversations · Düsseldorf
Fair Nov 2025

Review of K 2025: Technology, discussions and a strong trade fair presence

Impressions from the trade fair stand in Düsseldorf: band heaters, special solutions, customer discussions and the Ihne & Tesch Group team.

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Ihne & Tesch at the ESBK training fair Halver 2026
Training Feb 2026

Ihne & Tesch at the ESBK Halver career information fair

On February 7, 2026 we were at the training fair at the ESBK vocational college in Halver-Ostendorf - with around 50 companies on site. Information, advice and direct discussions with young people.

Career at Ihne & Tesch
Group of companies since 1932
6
Locations
4
Countries
At home internationally.
Technically a standard.
Lüdenscheid Lampertheim Nuremberg Hague Mitry Mory Mexborough
Group of companies

6 locations, 4 countries, one standard

Over 480 skilled workers, 100% in-house production. From Westphalia into the world - and the same quality standards everywhere.

View company group
Practical manual
Heating
ribbons
Author:
Carsten Tesch
Dipl.-Business Economist
Practical manual Sep 2025

Practical manual band heaters: selection, error analysis and practical knowledge

A technical guide by Carsten Tesch, graduate business economist - for design, application and typical sources of error. Coming soon.

Published soon

@ihneteschgroup

Insights from production, exhibition stand, team and application. Directly from the Ihne & Tesch Group.

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Directly from the manufacturer

Specialist advice instead of sales discussions

There are engineers behind every specialist article who will also advise you directly. No call centre, no waiting queue - just first-hand technical know-how.