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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryRafzH N Oberflächentechnik GmbH
H N Oberflächentechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company H N Oberflächentechnik GmbH offers services in the field of surface treatment and refinement of workpieces. The core activities include in particular: Deburring and edge rounding of components, Precision finishing and polishing, High-gloss polishing and ball polishing, Smoothing and cutting edge rounding, Cryogenic deburring and polishing. These services are offered for various industries and applications, including Additive Manufacturing (3D printing), Medical and Pharmaceutical Technology, Automotive Industry, Aerospace, Plastics Industry, Rubber and Silicone Industry, Jewelry and Watch Industry, Die Casting Industry, Tool Industry, Chain Industry, Coins and Ceramics Industry.

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Products & services

Industry:Metal Industry
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3.9/5

H N Oberflächentechnik GmbH

✓ Offered9
Tumbling Machines
Tumbling machines for deburring, edge rounding, grinding, smoothing and polishing; with drum, round-vibratory, through-feed and trough-vibratory systems for different workpieces.
Blasting Systems
Blasting systems for cleaning, derusting, descaling, roughening, peening and deburring; as injector, pressure, rotary basket, trough-belt, wet, carousel and fine-blasting systems.
Inspection Systems
Optical inspection systems for contactless, non-destructive testing; with 2D and 3D camera technology, surface inspection, dimensional control, defect classification and counting.
Electrofinishing Systems
Electrofinishing systems for metal workpieces to smooth and polish surfaces; suitable for stainless steel, titanium and alloys, with precise electrochemical material removal.
Process Water Treatment
Process water treatment for tumbling systems with wastewater treatment, centrifuges and chamber filter press to separate solids and recirculate process liquids.
Dryers
Dryers for workpieces after tumbling; including conveyor dryers, hot-air linear dryers, hot-air dryers, a hot-air centrifuge and corn-grit dryers.
Tumbling Media
Media for grinding, polishing and drying in tumbling processes; including ceramic and plastic media, polishing media, granulates, compounds, pastes and additives.
Separation Systems
Separation systems for tumbling processes with vibration, magnetic and flow separation; including screening vibrators, screen separation, magnetic discharge belt, roller magnet and hand magnet.
Contract Surface Finishing
Contract work for tumbling, drag finishing and cryogenic deburring; supplemented by polishing and trials in the test center in Rafz.
Trust & reputation

ranQ Trust Score of H N Oberflächentechnik GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

H N Oberflächentechnik GmbH scores 62.0 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.70.824%
  • 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.27.910%
  • 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.78.08%
H N Oberflächentechnik GmbH scores 72.3 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.75.012%
  • 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.55.07%
H N Oberflächentechnik GmbH scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
H N Oberflächentechnik GmbH scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

H N Oberflächentechnik GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gewerbestrasse 7a
8197 Rafz
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:30
Tue
07:00 - 12:00, 13:00 - 17:30
Wed
07:00 - 12:00, 13:00 - 17:30
Thu
07:00 - 12:00, 13:00 - 17:30
Fri
07:00 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-116.133.110
Founded
2019 · 7 years
Last commercial register change
January 9, 2025
Employees
1 to 10
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.
88.0
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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