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Fäh AG – Fertigung

Design and manufacture of hydraulic steel structures: trash racks, trash rack cleaning machines, gates, flaps and stoplogs for hydropower plants.

Fäh AG Logo

Fäh Maschinen- und Anlagenbau AG

Leimen 13, 8750 GlarusNew on Amplifa

1935Founded
25Employees
2 production halls, 2026 new buildingProduction area Glarus
436 trash rack cleaning machines sinceSystems built
CHE-105.137.262VAT no.

About us

Fäh Maschinen- und Anlagenbau AG in Glarus is a long-established Swiss company in hydraulic steelwork with a focus on hydropower plants. Its core competencies include trash racks, fish protection racks, trash rack cleaning machines, flaps, gates, stoplogs as well as sediment flushing systems, oil-hydraulic systems, penstocks, pressure gates and control systems for power plant installations. All designs are developed and manufactured in-house in Glarus; the company employs around 25 staff and a few apprentices. Production is mainly in steel, with stainless material used for sealing surfaces. Machining is carried out, among other things, on a 5-axis machining centre with a table size of 4 x 9 m. In addition to production, the company offers special on-site installations, service and maintenance as well as contract manufacturing. Customers include Axpo Hydro AG, CKW, KWO, BKW, EWZ, SBB as well as the Leibstadt and Gösgen nuclear power plants.

Site
Glarus
Processes
Hydraulic steelwork: trash racks, fish protection racks, trash rack cleaning systems, flaps, gates,, Telescopic trash rack cleaning machines (hydraulic), Articulated-arm trash rack cleaners, Cable-driven trash rack cleaning machines, Mobile trash rack cleaning machines (cable/hydraulic machines), Chain-driven trash rack cleaning machines, Horizontal trash rack cleaners, Flap gates / flap weirs
Materials
Steel (hydraulic steelwork), Stainless material / stainless steel (sealing surfaces), Steel, Stainless material / stainless steel
Certificates
EN ISO 9001, EN 1090, ISO 9001
Founded
1935
Employees
25
Industries
Hydropower, Hydraulic steelwork, Flood protection
  1. 01

    Design and project engineering in Glarus

  2. 02

    Steel fabrication and metalworking

  3. 03

    Machining (5-axis machining centre)

  4. 04

    Welding, drilling, cutting

  5. 05

    Control system construction

  6. 06

    On-site installation

  7. 07

    Service and maintenance

Materials and processes

St

Steel

Main material for trash racks, gates, flaps, stoplogs, penstocks and flood protection in hydraulic steelwork.

VA

Stainless material / stainless steel

Used for sealing surfaces in the side and sill areas of flaps and gates to ensure a long service life.

Location

Standort Glarus

Glarus

CH

Headquarters, production, office

Lot size
Single systems and customer-specific manufacturing
Materials
Steel, stainless steel
  • 5-axis machining centre (table size 4 x 9 m)
  • 2 large production halls
  • New metalworking shop building 70 x 30 m with 32-t hall cranes
  • Control system construction
  • Oil-hydraulic system manufacturing

Components

Trash rack with special bar profile
Trash rack with special bar profileSteel fabrication · Hydropower
Trash rack cleaning machine (telescopic, articulated arm, cable, chain, horizontal)
Trash rack cleaning machine (telescopic, articulated arm, cable, chain, horizontal)Installation · Hydropower
Segment gate / slide gate
Segment gate / slide gateHydraulic steelwork · Hydropower
Stoplogs
StoplogsSteel fabrication · Flood protection

Inside the production

Fäh Maschinen- und Anlagenbau AG, Glarus
Fäh Maschinen- und Anlagenbau AG, Glarus
Production halls in Glarus
Production halls in Glarus
Sustainability Award 2022 for the patented fish protection rack
Sustainability Award 2022 for the patented fish protection rack
Production hall in Glarus
Production hall in Glarus

Industries

HydropowerHydraulic steelworkFlood protection

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Hydraulic steelwork: trash racks, fish protection racks, trash rack cleaning systems, flaps, gates,Engineering––––Steel, Stainless steel
Telescopic trash rack cleaning machines (hydraulic)Installation–up to 11m × Lifting heights up to 6 m–––
Articulated-arm trash rack cleanersInstallation–up to 6m × Lifting heights up to 12m–––
Cable-driven trash rack cleaning machinesInstallation–up to 10m × Lifting heights up to 30m–––
Mobile trash rack cleaning machines (cable/hydraulic machines)Installation–up to 5m × Lifting heights up to 30m–––
Chain-driven trash rack cleaning machinesInstallation–up to 6m × Lifting height up to 4m–––
Horizontal trash rack cleanersInstallation–Rack length 2 to 50 m × Rack height 1 to 6 m–––
Flap gates / flap weirsJoining–Flap widths 0.5 to 48 m × Flap heights 0.3 to 6.5 m––Steel, Stainless material (sealing surfaces)
Segment gates / segment weirsJoining–Segment widths 2 to 25 m × Segment heights 1 to 6.5 m–––
Slide gatesJoining–Gate widths 0.2 to 15 m × Gate heights 0.2 to 8 m–––
Combinations (segment/slide gates with mounted flap, double gates)Joining–Gate widths 1 to 25 m × Gate heights 2 to 8 m–––
StoplogsJoining––––Steel
Oil-hydraulic systems (revision, renewal, piping, roll-formed pipe ends)Installation–––––
Sediment flushing systems (Fäh sediment flusher)Installation–Sediment flusher length 15 to 35 m–––
Bieri sediment flushers (revision/renewal)Installation–Sediment flusher length 15 to 40 m–––
Special sediment flusher with plate slide valve DN 100Installation–Sediment flusher length 18 m–––
Control system construction (for hydropower plants)Installation–––––
Penstocks, pressure gates, flood protection, weir installationsInstallation––––Steel
Special installations (welding, drilling, cutting on site)Installation–––––
Trash racks with special bar profile (various sizes)Joining––––Steel
Fish ascent and descent / fish protection racks (patented)Engineering–––––
Machining (running tracks, racks with fine bar spacing)Machining–Table size 4 x 9 m–––

2 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
5-axis machining centre–1Table size 4 x 9 m2013Glarus
Hall cranes (metalworking shop)––Metalworking shop 70x30m2026Glarus

Additional services

In-house design in GlarusSpecial installations (welding, drilling, cutting on site)Control system constructionOil-hydraulic systems (revision/renewal)Service and maintenanceContract manufacturingDebris removal (flushing channels, conveyors)

Reference customers

Axpo Hydro AG, BadenCKW AG, RathausenKWO Kraftwerke Oberhasli AGMisoxer KraftwerkeOfima LocarnoEW Davos AGebs Energie AGEW UrsernHIAG Immobilien AGEW AltdorfElggis Kraft NetstalLimmatwerke AG, BadenEWZBKWSAK St. GallenSBBKernkraftwerk LeibstadtKernkraftwerk Gösgen

Quality

The company is certified to EN ISO 9001 and EN 1090. Precise machining of running tracks and rack components also enables the cleaning of racks with fine bar spacing.

EvidenceGlarus
ISO 9001
EN 1090

History

  1. 1935

    Company founded by Vincenz Fäh-Berhards

  2. 1937

    Purchase of the property in Leimen, Glarus; setting up a workshop; development of the first cable-driven trash rack cleaning machine

  3. 1954

    Vincenz Fäh-Herrli continues the business; entry into hydraulic steelwork

  4. 1966

    Construction of the first horizontal trash rack cleaning machine

  5. 1975

    Conversion into Vincenz Fäh Maschinen-Metallbau AG

  6. 1994

    Development and optimization of the Fäh sediment flushing system

  7. 1999

    Acquisition by Melchior and Res Lütschg; renaming to Fäh Maschinen- und Anlagenbau AG

  8. 2005

    Establishment of an in-house control system division, mainly for hydropower plants

  9. 2008

    Construction of a new machine shop and office building

  10. 2013

    Commissioning of the new 5-axis machining centre, table size 4 x 9 m

  11. 2017

    Purchase of the Zsckokke-Wartmann archive as well as parts of the H. Erne AG archive

  12. 2020

    Shareholding of Hansruedi Grob at 30%

  13. 2022

    Shareholding of Tobias Rhyner at 30%; retirement and departure of Melchior Lütschg; Sustainability Award from the Glarus Cantonal Bank for the fish protection rack

  14. 2026

    Construction of a new metalworking shop 70 x 30 m with 32-t hall cranes

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