System partner for load-handling attachments, clamping and assembly fixtures as well as semi- and fully automated systems
KTW Carl Stahl GmbH
Friedrichshafen (DE) · Budapest (HU)New on Amplifa
About KTW Carl Stahl
KTW Carl Stahl GmbH is a system partner in special machinery engineering based in Friedrichshafen. The company develops and manufactures load-handling attachments, lifting equipment, lifting gear, hydraulic clamping fixtures, assembly fixtures and handling systems as well as automation solutions such as robot systems, gripper technology and rotary-indexing assembly systems. In addition, design and project engineering services in all development phases, control technology including electrical planning and PLC and robot programming, as well as CE documentation are offered. Manufacturing of components to customer drawings is carried out via a structured network of certified operations; the products are functionally assembled at KTW and inspected on a 3D measuring machine. The service portfolio also covers worldwide commissioning, maintenance, servicing and spare parts sales. Customers come mainly from manufacturing technology and automation. In 2025 the family company, founded in 1987, became part of the Carl Stahl Group.
- Site
- Friedrichshafen
- Processes
- Load-handling attachments, lifting equipment, lifting gear (development & manufacture), Hydraulic clamping fixtures (development & manufacture), Assembly fixtures and assembly systems, Handling systems (mechanical handling), Robot systems (automation), Gripper technology, Rotary-indexing assembly systems, Semi- and fully automatic assembly systems (special machinery engineering)
- Materials
- Steel (load-handling attachments, grippers, fixtures - material not further specified), Steel, CAD systems (Creo, SolidWorks, Inventor, Siemens NX), PLC and robot programming (MOTOMAN, EPSON, Stäubli, KUKA)
- Certificates
- DIN EN ISO 9001:2015
- Founded
- 1987
- Industries
- Special machinery engineering, Manufacturing technology, Automation
- 01
Design and project engineering
- 02
Manufacturing to customer drawings in certified operations
- 03
Functional assembly
- 04
3D measurement and testing with logging and certificate issuance
- 05
CE documentation
- 06
Commissioning, servicing and after-sales service
Development, Manufacturing and Testing
Steel
Material for load-handling attachments, grippers, clamping and assembly fixtures; exact grades not specified.
CAD systems (Creo, SolidWorks, Inventor, Siemens NX)
Design services from layouts and 3D models through to manufacturing drawings.
PLC and robot programming (MOTOMAN, EPSON, Stäubli, KUKA)
Control technology from electrical planning to programming of common robot and PLC systems.
Locations
Friedrichshafen
DEHeadquarters: design, assembly and testing
- Materials
- Stahl
- 3D measuring machine (automatic inspection)
- CAD systems: Creo, SolidWorks, Inventor, Siemens NX
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Load-handling attachments, lifting equipment, lifting gear (development & manufacture)Montage | – | – | 250 kg (3-arm gripper standard product) | – | – |
| Hydraulic clamping fixtures (development & manufacture)Montage | – | – | – | – | – |
| Assembly fixtures and assembly systemsMontage | – | – | – | – | – |
| Handling systems (mechanical handling)Montage | – | – | – | – | – |
| Robot systems (automation)Montage | – | – | – | – | – |
| Gripper technologyMontage | – | – | – | – | – |
| Rotary-indexing assembly systemsMontage | – | – | – | – | – |
| Semi- and fully automatic assembly systems (special machinery engineering)Montage | – | – | – | – | – |
| Design and project engineering services (layouts, 3D models, manufacturing drawings)Engineering | – | – | – | – | – |
| Manufacturing of almost all components to customer drawings (via certified manufacturing network)Zerspanung | – | – | – | – | – |
| Functional assembly of manufactured productsMontage | – | – | – | – | – |
| Inspection with 3D measuring machines incl. logging and certificate issuancePrüfung | – | – | – | – | – |
| Control technology: electrical planning, electrical design, PLC and robot programmingEngineering | – | – | – | – | – |
| Documentation: risk assessments, operating/instruction manuals, CE documentationEngineering | – | – | – | – | – |
| Maintenance, servicing, worldwide commissioning, spare parts salesMontage | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D measuring machine (automatic inspection) | – | – | – | – | Friedrichshafen |
| Standard product 3-arm gripper small (internal gripper for crane operation, load capacity 50 kg) | KTW 3-Arm Greifer klein | – | Internal Ø grip range 50-120 mm, component height 110 mm | – | Friedrichshafen |
| Standard product 3-arm gripper medium (internal gripper for crane operation, load capacity 150 kg) | KTW 3-Arm Greifer mittel | – | Internal Ø grip range 100-200 mm, component height 110 mm | – | Friedrichshafen |
| Standard product 3-arm gripper large (internal gripper for crane operation, load capacity 250 kg) | KTW 3-Arm Greifer groß | – | Internal Ø grip range 150-250 mm, component height 110 mm | – | Friedrichshafen |
Additional services
Quality
Quality assurance takes place along the entire process chain from design through manufacturing and assembly to customer support in accordance with DIN EN ISO 9001:2015. Manufactured products are functionally assembled at KTW and automatically inspected on 3D measuring machines; results are logged and certificates are issued.
| Evidence | Friedrichshafen |
|---|---|
| DIN EN ISO 9001:2015 |
History
- 1987
KTW K. Weißhaupt GmbH was spun off from a design office that had existed for 18 years; specialization on solutions in manufacturing technology.
- 2003
Construction of the new company building in Friedrichshafen, owned by the family.
- 2010
Nadine Weißhaupt becomes managing director alongside her father.
- 2012
25th company anniversary.
- 2016
Founding of the 100% subsidiary KTW Hungary Kft. in Budapest, initially with three employees in design services.
- 2018
The company founder and long-time managing director Kurt Weißhaupt passed away on 12 July 2018 at the age of 79.
- 2019
Nadine Weißhaupt (commercial) and Peter Hatzing (technical) take over the management.
- 2022
Nadine Weißhaupt leaves the management on 1.1.2022; Peter Hatzing leads alone, Selina Weißhaupt takes over commercial management with power of attorney.
- 2023
Günther Höfle joins the management and runs the company together with Peter Hatzing.
- 2025
Acquisition by the Carl Stahl Group effective 1.4.2025; renamed KTW Carl Stahl GmbH.