Manufacturer of precision gears, gearboxes and drive systems for aerospace and industry.
Sauter, Bachmann AG
Netstal (CH) · Gravellona Toce (IT)New on Amplifa
About Sauter Bachmann
Sauter, Bachmann AG, based in Netstal in the canton of Glarus, has been developing and producing precision gears, gearboxes and complete drive systems since 1922. The product range includes spur gears and gear rims, worm shafts and worm wheels, spiral bevel gears, hypoid gears, Hirth serrations as well as internal gearing – milled, shaped, planed, ground, lapped and honed. An in-house heat treatment facility with laboratory enables case hardening, gas nitriding, surface layer hardening and cryogenic treatment; in addition, metallurgical analyses, crack testing, nital tests, hardness testing and gear measurements including single-flank rolling tests are offered. The range of services also includes gearing and design engineering, gearbox assembly for industrial and aviation gearboxes, and contract machining of metal. Customers include aerospace, mechanical and automotive engineering, railway, energy and environmental technology, machine tool manufacturing, the packaging industry and defense technology. More than half of the products are exported, mainly to the USA and the EU. A subsidiary, Sauter, Bachmann Italia Srl in Gravellona Toce, complements the engineering capacities.
- Site
- Netstal
- Processes
- Spur gear milling (CNC gear hobbing), Spur gear grinding (CNC profile grinding), Spur gear honing (gear flank honing), Internal gearing shaping, Internal gearing planing, Internal gearing grinding, Internal gearing honing, Worm shaft and worm wheel milling
- Materials
- Centrifugal cast bronze, Special brass, Spheroidal cast iron, Steels (for case hardening), Case-hardening steels
- Certificates
- EN 9100:2018 (equivalent to AS9100D / ISO 9001:2015), ISO 14001:2015, ISO 45001:2018, Nadcap Heat Treating (AC7102, Carburizing, Pyrometry AMS2750), Nadcap NonDestructive Testing (Nital/Temper Etch, Penetrant, Magnetic Particle), EASA Part 21 Subpart G (production organization), EASA Part 145 (incl. FAA and TCCA, maintenance organization), Dassault Aviation qualification (Reconnaissance d'aptitude), Pilatus Aircraft Ltd OEM Approval, Leonardo Helicopters Approval, EN 9100:2018 (AS9100D / ISO 9001:2015), Nadcap Heat Treating (incl. Pyrometry AMS2750), Nadcap NDT (Nital/Temper, Penetrant, Magnetic Particle), EASA Part 21 Subpart G, EASA Part 145 (incl. FAA/TCCA), OEM qualifications (Pilatus, Leonardo, Dassault)
- Founded
- 1922
- Industries
- Aerospace, Mechanical and automotive engineering, Railway technology, Power generation/energy technology, Environmental technology, Packaging industry
- 01
Engineering & gear design
- 02
CNC milling / shaping / planing
- 03
Heat treatment (in-house hardening facility)
- 04
Grinding / honing / lapping
- 05
Inspection & measurement
- 06
Gearbox assembly
Materials & Processes
Case-hardening steels
Base material for case-hardened, surface-layer hardened and gas-nitrided gearing such as worm shafts.
Spheroidal cast iron
Material for worm wheels, with surface treatment after machining.
Centrifugal cast bronze
Special material for worm wheels to optimize sliding, emergency-running and service life properties.
Special brass
Alternative material for worm wheels depending on requirements.
Locations
Netstal
CHHeadquarters, gear & gearbox production, heat treatment incl. laboratory; old building on Erlenweg for assembly of
- Part weight / size
- Spur gears Ø 5–1200 mm, worm shafts up to 1300 mm
- Materials
- Steel, spheroidal cast iron, centrifugal cast bronze, special brass
- CNC gear hobbing machines
- CNC shaping machines
- CNC profile grinding machines
- Honing machines (gear flank honing)
- Bevel gear production machines (Gleason/Klingelnberg)
- Heat treatment facility with laboratory
Gravellona Toce
ITSubsidiary Sauter, Bachmann Italia Srl (formerly Engineering ZETA), engineering
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Spur gear milling (CNC gear hobbing)Machining | – | Ø 5 to 1200 mm | – | – | – |
| Spur gear grinding (CNC profile grinding)Machining | Gear quality ISO 1328 – quality 3 | ground up to Ø 1200 mm | – | – | – |
| Spur gear honing (gear flank honing)Surface | Gear quality per ISO 1328 up to Q3 | Length of spur gear up to 250 mm (up to × Outer diameter up to 150 mm (larger | – | – | – |
| Internal gearing shapingMachining | – | – | – | – | – |
| Internal gearing planingMachining | – | – | – | – | – |
| Internal gearing grindingMachining | – | – | – | – | – |
| Internal gearing honingSurface | – | – | – | – | – |
| Worm shaft and worm wheel millingMachining | – | Worm shafts up to 1300 mm between × Worm wheels up to Ø 1200 mm; | – | – | Centrifugal cast bronze, Special brass, Spheroidal cast iron |
| Worm shaft and worm wheel grindingMachining | Gear quality per ISO 1328 up to Q4 | Worm shafts up to 1300 mm × Ø of gearing up to 350 mm | – | – | – |
| Bevel gear milling (spiral-toothed, Gleason system, Klingelnberg)Machining | – | – | – | – | – |
| Bevel gear lappingSurface | – | – | – | – | – |
| Bevel gear grindingMachining | – | – | – | – | – |
| Hypoid gears (offset bevel gears)Machining | – | – | – | – | – |
| Hirth serration millingMachining | Flank angle 60° | milled up to Ø 1000 mm | – | – | – |
| Hirth serration grindingMachining | – | ground up to Ø 500 mm, depending on | – | – | – |
| High-precision form grindingMachining | – | – | – | – | – |
| Plunge grindingMachining | – | – | – | – | – |
| Shaft connections: multi-spline profile, polygon profile, spline profile (also ground)Machining | – | – | – | – | – |
| Heat treatment (in-house hardening facility, case hardening, gas nitriding, surface layer hardening)Heat treatment | – | – | – | – | Steels |
| Cryogenic treatmentHeat treatment | – | – | – | – | – |
| Metallurgical analysesTesting | – | – | – | – | – |
| Crack testing by magnetic particle or dye penetrant method (MPI/FPI)Testing | – | – | – | – | – |
| Grinding burn detection (nital test, roll-scan measurement)Testing | – | – | – | – | – |
| Hardness testing (Rockwell, Vickers, microhardness)Testing | – | – | – | – | – |
| MetallographyTesting | – | – | – | – | – |
| Gear measurement (spur gears, bevel gears, worm shafts, Hirth serrations)Testing | – | – | – | – | – |
| Single-flank rolling testsTesting | – | – | – | – | – |
| Gearbox manufacturing (low-backlash, automotive, aerospace, traction, railway gearboxes)Assembly | – | – | – | – | – |
| Gearing and design engineering (spur gear, worm wheel, bevel gear design)Engineering | – | – | – | – | – |
| Surface treatment of spheroidal cast iron worm wheelsSurface | – | – | – | – | Spheroidal cast iron |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC gear hobbing machines | – | – | Spur gears Ø 5 to 1200 mm, module 0.5 to 16 mm | – | Netstal |
| CNC shaping machines | – | – | – | – | Netstal |
| CNC profile grinding machines | – | – | ground up to Ø 1200 mm | – | Netstal |
| Honing machines (gear flank honing) | – | – | Outer diameter up to 150 mm, gear width up to 80 mm, module 1 to 6 | – | Netstal |
| Bevel gear production machines (Gleason/Klingelnberg system) | – | – | – | – | Netstal |
| Heat treatment facility (heat treatment plant incl. laboratory) | – | – | – | – | Netstal (Erlenweg) |
Additional services
Reference customers
Quality & Certifications
Production is backed by an integrated management system for quality, environment and occupational safety. State-of-the-art measuring machines enable gear measurements of spur gears, bevel gears, worm shafts and Hirth serrations as well as single-flank rolling tests; an in-house heat treatment facility with laboratory (metallography, hardness testing) is Nadcap accredited.
| Evidence | Netstal |
|---|---|
| EN 9100:2018 (AS9100D / ISO 9001:2015) | |
| ISO 14001:2015 | |
| ISO 45001:2018 | |
| Nadcap Heat Treating (incl. Pyrometry AMS2750) | |
| Nadcap NDT (Nital/Temper, Penetrant, Magnetic Particle) | |
| EASA Part 21 Subpart G | |
| EASA Part 145 (incl. FAA/TCCA) | |
| OEM qualifications (Pilatus, Leonardo, Dassault) |