Development and manufacturing of custom special gearboxes and high-precision gear parts at the Chemnitz site.
Chemnitzer Zahnradfabrik GmbH & Co. KG
ChemnitzNew on Amplifa
About Chemnitzer Zahnradfabrik
CHEMNITZER ZAHNRADFABRIK (CZF) is a family-owned company founded in 1890 in Chemnitz, specializing in the development and manufacture of custom special gearboxes as well as high-precision gear parts. The gearboxes are produced as spur gear, bevel gear, worm gear and planetary gearboxes, as well as in combinations, with drive torques up to 10,000 Nm and drive concepts that can be powered electrically, hydraulically or pneumatically. The in-house manufacturing depth covers material cutting, part production (turning, milling, gear hobbing, gear shaping, broaching, wire EDM, grinding), heat treatment, coating, painting as well as assembly and commissioning. Gear parts such as spur gears, pinion shafts, ring gears, spline and serrated shafts, sprockets and special profiles are manufactured from steel, stainless steel, bronze and plastic as single pieces or in small series. Customers come from machinery and plant engineering, extrusion and plastics technology, defence and security technology, marine applications, energy and environmental technology as well as filling and packaging systems. The Chemnitz/Grüna site offers 5,000 m² of production space; in 2025, 80 employees manufactured 25,292 gears.
- Site
- Chemnitz
- Processes
- Turning & milling, Gear hobbing, Gear shaping, Broaching, Wire EDM, Internal and external grinding, Spline grinding, Bevel gear grinding
- Materials
- Steel, Stainless steel, Bronze, Plastic
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1890
- Employees
- 80
- Industries
- Machinery and plant engineering, Extrusion & plastics technology, Defence and security technology, Marine & offshore, Energy & environmental technology, Filling and packaging systems
- 01
Engineering & Design
- 02
Material cutting
- 03
Part production (gearing, turning, milling, grinding)
- 04
Heat treatment & coating
- 05
Painting
- 06
Assembly & commissioning
- 07
Maintenance & spare parts supply
Materials & Processes
Steel
Standard material for highly loaded gearings and gearbox shafts.
Stainless steel
For corrosion-resistant versions, e.g. in hygienic environments.
Bronze
Material for worm gears and low-wear friction pairings.
Plastic
For quiet, low-maintenance gear parts depending on the application.
Locations
Chemnitz (Grüna)
DEMain site: development, design, manufacturing, assembly
- Lot size
- Single pieces to small series
- Materials
- Steel, stainless steel, bronze, plastic
- Turning & milling
- Gear hobbing
- Gear shaping
- Broaching
- Wire EDM
- Internal and external grinding
- Spline grinding
- Bevel gear grinding
- Gear flank grinding
- Sawing
- Laser marking
- Painting
- Housing machining
- Assembly
- Quality assurance
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turning & millingMachining | – | – | – | – | Steel, Stainless steel, Bronze, Plastic |
| Gear hobbingMachining | – | – | – | – | – |
| Gear shapingMachining | – | – | – | – | – |
| BroachingMachining | – | – | – | – | – |
| Wire EDMMachining | – | – | – | – | – |
| Internal and external grindingMachining | – | – | – | – | – |
| Spline grindingMachining | – | – | – | – | – |
| Bevel gear grindingMachining | – | – | – | – | – |
| Gear flank grinding (generative and profile grinding)Machining | – | – | – | – | – |
| SawingMachining | – | – | – | – | – |
| Laser markingSurface | – | – | – | – | – |
| PaintingSurface | – | – | – | – | – |
| Housing machiningMachining | – | – | – | – | – |
| AssemblyAssembly | – | – | – | – | – |
| Quality assuranceInspection | – | – | – | – | – |
| Heat treatment, coating, joiningHeat treatment | – | – | – | – | – |
| Material cuttingMachining | – | – | – | – | – |
| Manufacture of special gearboxes (spur, bevel, worm and planetary gearboxes as well asAssembly | – | – | – | Single piece – Small series | – |
| Manufacture of gear parts (spur gears, pinion shafts, ring gears, spline and serrated shafts,Machining | – | – | – | Single pieces – Small series | Steel, Stainless steel, Bronze, Plastic |
| Case hardening, nitriding, quenching and tempering, coatingHeat treatment | – | – | – | – | – |
| Design and engineering (dimensioning, calculation, CAD, 3D models)Engineering | – | – | – | – | – |
| Maintenance, inspection and repair of gearboxesAssembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Machine tools for gear part production | – | – | – | – | Chemnitz |
Additional services
Quality
Quality assurance follows DIN ISO 9001:2015 with an in-house quality management system. Supplied items can include dimensional and form inspections of defined characteristics, inspection reports, traceability along the process chain as well as acceptance according to the agreed inspection plan.
| Evidence | Chemnitz (Grüna) |
|---|---|
| ISO 9001 |
History
- 1890
Founded as "Bernhard Gläss Drehmaschinen" in Chemnitz; lathes with hobbed change gears.
- 1945
Expropriation, nationalization and renaming to "Drehmaschinenwerk Chemnitz".
- 1955
Renamed VEB Fahrzeuggetriebewerke "Wilhelm Friedel" Karl-Marx-Stadt, integrated into the IFA commercial vehicle combine.
- 1989
Treuhand operation, renamed CHEMNITZER ZAHNRADFABRIK.
- 1992
Privatization and realignment towards the development and manufacture of complex gearboxes and gear parts.
- 1993
New building and relocation within Chemnitz (Grüna site).
- 2000
Engineering becomes the differentiating feature of custom special gearboxes.
- 2017
Handover to the next generation of the owner family.
- 2021
Extension and expansion of the production area.