Development and manufacture of miniature gas turbine systems (JetCat) as well as laboratory equipment and laboratory automation.
Ingenieurbüro CAT, M. Zipperer GmbH (JetCat)
Ballrechten-Dottingen (Wettelbrunner Str. 6) · Ballrechten-Dottingen (Untermatten 50)New on Amplifa
About JetCat
Ingenieurbüro CAT, M. Zipperer GmbH develops and manufactures miniature gas turbine systems in Ballrechten-Dottingen under the JetCat brand. The jet turbines are used in jet model aircraft, in drones, in research at universities and colleges, and for industrial applications such as stationary generators. The entire value chain is in-house: 3D-CAD design and verification, its own CNC machine park for milled and turned parts, toolmaking, plastic injection moulding on its own injection moulding machines, and laser welding of thin-walled metal parts such as combustion chambers. The rotor assemblies are dynamically balanced on precision balancing machines, and fully assembled engines are fine-balanced and, before delivery, tested in a dedicated test room with thrust, torque and power measurement. Around 100 employees ensure development, manufacturing, service and repair; the company is led by Dipl. Ing. Markus Zipperer.
- Site
- Ballrechten-Dottingen
- Processes
- CNC milling (milled parts of all kinds), CNC turning (turned parts of all kinds), Toolmaking, Plastic injection moulding, Laser welding (welding of thin-walled metal parts, e.g. combustion chambers), 3D-CAD design and verification, Dynamic balancing of rotor assemblies on precision balancing machines; fine balancing of finished, Engine test run: thrust measurement as well as torque/power measurement of shaft engines
- Materials
- Stainless steel (turbine housings), Plastic (injection-moulded parts), Metal, thin-walled (combustion chambers etc.), Stainless steel, Plastic, Thin-walled metal
- Certificates
- DIN EN ISO 9001:2015, DIN ISO 13485
- Founded
- 1976 (Inge
- Employees
- ca. 100
- Industries
- Model/hobby aviation, Aerospace (drones, research aircraft), Industrial applications (stationary gas turbines, generators), Universities/colleges, Laboratory technology, Model/hobby aviation (jet model aircraft)
- 01
3D-CAD design and verification
- 02
Toolmaking
- 03
CNC milling
- 04
CNC turning
- 05
Plastic injection moulding
- 06
Laser welding (combustion chambers)
- 07
Dynamic balancing
- 08
Assembly
- 09
Test run with thrust/power measurement
- 10
Service & repair
Materials & Processes
Stainless steel
Stainless steel turbine housings for jet turbines.
Plastic
Injection-moulded parts, manufactured on our own plastic injection moulding machines.
Thin-walled metal
Laser-welded combustion chambers and thin-walled metal parts.
Sites
Ballrechten-Dottingen (Untermatten 50)
DETurbine production site
- Materials
- Stainless steel, plastic, thin-walled metal
- CNC machine park (milling/turning)
- Plastic injection moulding machines
- Laser welding systems
- Precision balancing machines
- Turbine test room
Ballrechten-Dottingen (Wettelbrunner Str. 6)
DEAdministration / invoicing address
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC milling (milled parts of all kinds)Machining | – | – | – | – | Metals (various) |
| CNC turning (turned parts of all kinds)Machining | – | – | – | – | Metals (various) |
| ToolmakingEngineering | – | – | – | – | – |
| Plastic injection mouldingPlastics | – | – | – | – | Plastic |
| Laser welding (welding of thin-walled metal parts, e.g. combustion chambers)Joining | – | – | – | – | Metal (thin-walled, e.g. combustion chambers) |
| 3D-CAD design and verificationEngineering | – | – | – | – | – |
| Dynamic balancing of rotor assemblies on precision balancing machines; fine balancing of finishedTesting | – | – | – | – | – |
| Engine test run: thrust measurement as well as torque/power measurement of shaft enginesTesting | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC machine park (milled and turned parts) | – | – | – | – | Ballrechten-Dottingen (turbine production site, Untermatten 50) |
| Plastic injection moulding machines | – | – | – | – | Ballrechten-Dottingen |
| Laser welding systems | – | – | – | – | Ballrechten-Dottingen |
| Balancing machines (precision balancing machines) | – | – | – | – | Ballrechten-Dottingen |
| Turbine test room (thrust and torque/power measurement) | – | – | – | – | Ballrechten-Dottingen |
Additional services
Reference customers
Quality
All engines are tested before delivery in a dedicated test room: thrust measurement as well as torque/power measurement of shaft engines. Rotor assemblies are dynamically balanced on precision balancing machines, and fully assembled engines are fine-balanced.
| Evidence | Ballrechten-Dottingen |
|---|---|
| DIN EN ISO 9001:2015 | |
| DIN ISO 13485 |
History
- 1976
Foundation of Ingenieurbüro CAT, M. Zipperer GmbH – custom solutions in the laboratory sector (micro dosing pumps, magnetic stirrers, shaker equipment, laboratory automation).
- 2000
Expansion into the development and manufacture of model aircraft turbines – creation of the JetCat product brand.
- 2025
Re-certification to ISO-9001 (27.03.2025 – 14.03.2027, GüteZert GmbH).