
Sales, assembly, maintenance and UVV inspection of truck loading cranes (4–575 mto) and assembly cranes for roofing and carpentry businesses.

F.A.S. Krantechnik GmbH
MannheimNew on Amplifa
About FAS Krantechnik
F.A.S. Krantechnik GmbH from Mannheim-Käfertal is a specialist for truck loading cranes and assembly cranes. The company sells, installs and services loading cranes from the manufacturers Fassi and Cormach as well as its own TECH crane line of knuckle boom assembly cranes, which is produced exclusively for FAS. The product range covers truck loading cranes from 4 to 575 mto as well as assembly cranes for roofing and carpentry businesses. The 4,000 m² company premises feature a modernly equipped workshop hall with eight assembly bays. In addition to sales, installation and repair, FAS offers maintenance, crane acceptance inspections, expert inspections under the accident prevention regulations (UVV), spare parts service, and service in vehicle construction and hydraulics, also as on-site field service. The company originated from Willersinn Fahrzeugbau GmbH, founded in 1945, and has operated under the name FAS Krantechnik GmbH since 2004.
- Site
- Mannheim
- Processes
- Sales, service and repairs for loading and assembly cranes, Service in vehicle construction and hydraulics, Maintenance and repair work in specialist workshop, crane acceptance inspections, UVV acceptance, Truck loading cranes from 4 mto to 575 mto, Trailer, box body and vehicle construction, Maintenance and repair work, Crane acceptance inspections and expert inspections (UVV), Spare parts service
- Materials
- Fassi loading cranes (GL 4000 E, GM, GP series), Cormach assembly cranes (TECH crane line), Hydraulics service
- Certificates
- UVV acceptance inspections / expert inspections
- Founded
- 1945 (as
- Industries
- Roofing, Carpentry businesses, Commercial vehicles/Crane construction
- 01
Sales and general import of loading and assembly cranes
- 02
Assembly and installation in the workshop
- 03
Service in vehicle construction and hydraulics
- 04
Maintenance and repair work
- 05
UVV crane acceptance inspections and expert inspections
- 06
Spare parts service and customer service
Products & Processes
Fassi loading cranes (GL 4000 E, GM, GP series)
Truck loading cranes from 4 to 575 mto; FAS was general importer for Fassi from 1984 to 1996.
Cormach assembly cranes (TECH crane line)
Knuckle boom assembly cranes for roofing and carpentry businesses, produced exclusively for FAS.
Hydraulics service
Service and repairs in the field of vehicle construction and hydraulics for loading and assembly cranes.
Locations

Mannheim
DEHeadquarters, workshop, assembly and service
- Materials
- Fassi loading cranes, Cormach assembly cranes, TECH crane line
- Workshop hall with 8 assembly bays
- Specialist workshop for maintenance and repair
- Field service for on-site UVV acceptance inspections
Cranes & Components


Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Sales, service and repairs for loading and assembly cranesAssembly | – | – | – | – | – |
| Service in vehicle construction and hydraulicsAssembly | – | – | – | – | – |
| Maintenance and repair work in specialist workshop, crane acceptance inspections, UVV acceptanceTesting | – | – | – | – | – |
| Truck loading cranes from 4 mto to 575 mtoAssembly | – | – | – | – | – |
| Trailer, box body and vehicle constructionAssembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Assembly crane (knuckle boom, Tech crane line) | Cormach 23.000 TECH / 43.000 TECH / 88.000 TECH / 91.000 TECH / 120.000 TECH | – | – | – | Mannheim |
| Loading crane | Fassi GL 4000 E series / GM series / GP series | – | – | – | Mannheim |
Additional services
Reference customers
Quality & Inspection
Crane acceptance inspections and expert inspections are carried out in accordance with the accident prevention regulations (UVV) by trained personnel in the specialist workshop or by field service staff on site.
| Evidence | Mannheim |
|---|---|
| UVV acceptance inspections / expert inspections |
History
- 1945
Founding of Willersinn Fahrzeugbau GmbH by Heinz Willersinn.
- 1972
Takeover of Willersinn Fahrzeugbau GmbH in Feudenheim by Günter Gebauer.
- 1977
Relocation to the newly built facility at the current site; Meiller contract operation, trailer, box body and vehicle construction.
- 1984
General importer for Fassi loading cranes, assembly, service and sales (until 1996).
- 1985
Founding of FAS Fördertechnik GmbH as a subsidiary of Willersinn Fahrzeugbau GmbH.
- 1987
Construction of the first assembly cranes for roofing and carpentry businesses on 7.49-t trucks.
- 1988
Start of collaboration with Cormach s.r.l. (Italy); development of the Tech crane line produced exclusively for FAS.
- 2004
Re-establishment of FAS Krantechnik GmbH by Bernd Kronauer and Christian Zittel; general importer of Cormach.
- 2018
Trade fair appearance at IAA Commercial Vehicles (Cormach stand).
- 2019
Trade fair appearances at BAUMA Munich (Cormach stand) and NUFAM Karlsruhe (FAS stand).