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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryKlingnauWärmebehandlung Klingnau AG
Wärmebehandlung Klingnau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the heat treatment of metals and non-ferrous metals according to individual customer requirements, including processes such as hardening, annealing, tempering, vacuum technology, soldering, nitrocarburizing and aluminum coating.

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Products & services

Industry:Metal Industry
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4.1/5

Wärmebehandlung Klingnau AG

6
Heat treatment
Technical heat treatment of metals and non-ferrous metals for individual parts and series, including individual processes, engineering support and project supervision.
Quenching and tempering, annealing
Hardening of steel, tempering and various annealing processes under protective gas, including stress-relief annealing, solution annealing, recrystallization annealing and diffusion annealing.
Aluminium quench aging
Solution annealing, quenching and hardening of aluminium alloys, if desired with tensile testing and test certificates for mechanical values.
Nitrocarburising surface treatment
Nitrocarburizing and nitriding for surface hardening of steel with improved wear resistance, corrosion resistance, sliding behaviour and reduced distortion.
Vacuum technology - brazing
Annealing, hardening and high-temperature brazing without flux under vacuum, with vacuum-tight, mechanically highly load-bearing joints for different material combinations.
Quality assurance and test procedures
Quality assurance according to ISO 9001 with spectroscopic analyses, tensile testing, Brinell, Rockwell and Vickers hardness measurements, and testing of aluminium parts.
Trust & reputation

ranQ Trust Score of Wärmebehandlung Klingnau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Wärmebehandlung Klingnau AG scores 69.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.78.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.49.510%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Wärmebehandlung Klingnau AG scores 83.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Wärmebehandlung Klingnau AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Wärmebehandlung Klingnau AG scores 7.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wärmebehandlung Klingnau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 6 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Location

Kanalstrasse 12
5313 Klingnau
Opening hours
Mon
07:00 - 15:30
Tue
07:00 - 15:30
Wed
07:00 - 15:30
Thu
07:00 - 15:30
Fri
07:00 - 15:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-157.693.665
Founded
2016 · 10 years
Last commercial register change
June 19, 2024
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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