Manufacturing high-quality CFRP and GRP fibre composite components and assemblies for aviation and the automotive industry
COTESA GmbH
Mittweida · Mochau · Changzhou (CN)New on Amplifa
About COTESA
COTESA GmbH is an owner-managed manufacturer of fibre composite components headquartered in Mittweida (Saxony). At three sites in Germany and China, more than 400 employees produce customised components and assemblies for aviation and the automotive industry. The product range includes complex CFRP components such as profiles and stringers, multi-dimensional GRP sandwich structures as well as hybrid components such as drive shafts. The scope of services ranges from technology development and process conception through prototype manufacturing to series production, including painting and assembly of assemblies. Customers include Airbus, Boeing and Liebherr Aerospace; long-term involvement in aviation programmes forms the basis of the company's development since its founding in 2002. The materials laboratory is accredited as a testing laboratory under DIN EN ISO/IEC 17025:2018, and the company is certified to EN 9100:2018 and Nadcap.
- Site
- Mittweida
- Processes
- Manufacturing of complex CFRP components (profiles, stringers), Production of multi-dimensional GRP sandwich structures, Manufacturing of hybrid components (drive shafts), Prototype and series production of fibre composites, Technology development and process conception, NDT-UT inspection (Nadcap-accredited), Painting of assemblies, Assembly of assemblies
- Materials
- CFRP (carbon fibre-reinforced plastic), GRP (glass fibre-reinforced plastic), Fibre composite hybrid structures, Carbon fibre-reinforced plastic, Glass fibre-reinforced plastic
- Certificates
- EN 9100:2018, NADCAP Composites (Composite Mfg, Merit), NADCAP NDT (UT) reaccreditation 11/2024, DIN EN ISO/IEC 17025:2018 (testing laboratory), ISO 50001:2018 (initial certification June 2026 planned/passed), Nadcap Composites, Nadcap NDT (UT), DIN EN ISO/IEC 17025 (testing laboratory), ISO 50001:2018
- Founded
- 2002
- Employees
- 400+
- Industries
- Aviation, Automotive industry
- 01
Technology development
- 02
Process conception
- 03
Prototype manufacturing
- 04
Series production
- 05
NDT-UT inspection
- 06
Painting
- 07
Assembly of assemblies
Materials and Processes
Carbon fibre-reinforced plastic
Used for complex components such as profiles and stringers as well as hybrid components such as drive shafts.
Glass fibre-reinforced plastic
Used for multi-dimensional sandwich structures.
Fibre composite hybrid structures
Combination of CFRP and GRP for components such as drive shafts.
Sites
Mittweida
DEProduction site / Headquarters
- Materials
- CFRP, GRP
Mochau
DEProduction site (opened 2015)
- Materials
- CFRP, GRP
Changzhou
CNProduction site (EN 9100 audit passed 2020)
- Materials
- CFRP, GRP
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of complex CFRP components (profiles, stringers)Plastics | – | – | – | – | CFRP |
| Production of multi-dimensional GRP sandwich structuresPlastics | – | – | – | – | GRP, Sandwich materials |
| Manufacturing of hybrid components (drive shafts)Plastics | – | – | – | – | CFRP, GRP |
| Prototype and series production of fibre compositesPlastics | – | – | – | – | CFRP, GRP |
| Technology development and process conceptionEngineering | – | – | – | – | – |
| NDT-UT inspection (Nadcap-accredited)Testing | – | – | – | – | – |
| Painting of assembliesSurface | – | – | – | – | – |
| Assembly of assembliesAssembly | – | – | – | – | – |
Additional services
Reference customers
Quality and Certifications
COTESA is certified to EN 9100:2018 as well as Nadcap for Composite Manufacturing and NDT-UT. The materials laboratory is accredited as a testing laboratory under DIN EN ISO/IEC 17025:2018.
| Evidence | Mittweida | Mochau | Changzhou |
|---|---|---|---|
| EN 9100:2018 | |||
| Nadcap Composites | |||
| Nadcap NDT (UT) | |||
| DIN EN ISO/IEC 17025 (testing laboratory) | |||
| ISO 50001:2018 |
History
- 2002
Company founded
- 2013
NADCAP accreditation for NDT-UT
- 2015
Opening of the second production site in Mochau, production floor space increased to 32,000 m²
- 2016
NADCAP accreditation for Composite Manufacturing
- 2017
Delivery of painted and assembled assemblies to Airbus; accreditation of the materials laboratory under DIN EN ISO/IEC 17025; Liebherr Aerospace Award "Best Improver 2017"
- 2017
Boeing awards contract for component manufacturing (01.06.)
- 2020
Changzhou/China plant passes DIN EN 9100 audit (29.07.)
- 2024
Renewal of Nadcap certificate COMPOSITE MFG (Merit status); reaccreditation of Nadcap NDT
- 2025
Reaccreditation Nadcap COMPOSITE MFG (Merit)
- 2026
Initial certification to ISO 50001:2018 (June)