Manufacture of log splitters, saws, saw-splitting automat lines, slurry mixers and hydraulic cylinders from the Allgäu
GROWI Maschinenbau GmbH & Co. KG
Oberthingau · KraftisriedNew on Amplifa
About GROWI Maschinenbau
GROWI Maschinenbau GmbH & Co. KG develops and manufactures machines for firewood and agricultural technology in Oberthingau (Unterthingau) in the Allgäu region. The product range includes horizontal and vertical log splitters for short and meter-long logs, excavator-mounted splitters, saw-splitting automat lines, high-performance saws, wood handling equipment such as conveyor belts, disc and drum cleaners, bundling machines, logging grapples and sorting systems, as well as PTO-driven, tower and electric mixers for slurry pits. In addition, hydraulic cylinders are manufactured. Design of the company's own machines is done in-house; for production, two Hurco machining centres, one CNC lathe, two welding robots and two double mitre saws are available in the company's own sawmill. In addition to final assembly of the machines, the company also performs contract manufacturing in CNC machining, sawing and automated welding of steel structures. Customers include agriculture and forestry, firewood and fireplace wood producers, as well as forestry and contractor businesses. Distribution partners exist in Switzerland, Ireland and England; catalogues are published in German, English, French and Dutch. Electricity demand is self-generated via several PV systems, and heating of the Kraftisried site is provided by a natural gas-fired combined heat and power unit.
- Site
- Oberthingau
- Processes
- CNC machining (machining centres), CNC turning, Automated welding (2 welding robots), Sawing (double mitre saws in own sawmill), Manufacture of log splitters (vertical, horizontal, excavator-mounted splitters, saw-splitting, Manufacture of slurry and mixing equipment (PTO-driven, tower, electric mixers), Manufacture of hydraulic cylinders, Development and design of own machines
- Materials
- CNC machining, Automated Welding, Sawing, Engineering/Design, Steel
- Founded
- 1860
- Industries
- Agriculture and forestry, Firewood/fireplace wood production, Slurry and agricultural technology, Forestry and contractor businesses
- 01
Design/Engineering of own machines
- 02
Sawing (own sawmill, 2 double mitre saws)
- 03
CNC machining (2 Hurco machining centres, 1 CNC lathe)
- 04
Automated welding (2 welding robots)
- 05
Assembly of the machines
- 06
Customer service, support and used machinery sales
Materials & Processes
CNC machining
Manufacture of components with two Hurco machining centres and one CNC lathe.
Automated Welding
Two welding robots produce steel structures for the machine products.
Sawing
Own sawmill with two double mitre saws for pre-machining of steel parts.
Engineering/Design
Development and design of own machines with a practice-oriented development process.
Steel
Material for welded machine frames and steel structures.
Sites
Oberthingau
DEHeadquarters and plant: production and offices
- Materials
- Steel
- 2 Hurco machining centres
- 1 CNC lathe
- 2 welding robots
- 2 double mitre saws
Kraftisried
DEPlant: production halls and office building, heated via CHP unit
- Materials
- Steel
- 7 production halls (entire site 3750 m²)
Machines & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC machining (machining centres)Machining | – | – | – | – | – |
| CNC turningMachining | – | – | – | – | – |
| Automated welding (2 welding robots)Joining | – | – | – | – | Steel |
| Sawing (double mitre saws in own sawmill)Machining | – | – | – | – | Steel |
| Manufacture of log splitters (vertical, horizontal, excavator-mounted splitters, saw-splittingAssembly | – | – | – | – | – |
| Manufacture of slurry and mixing equipment (PTO-driven, tower, electric mixers)Assembly | – | – | – | – | – |
| Manufacture of hydraulic cylindersAssembly | – | – | – | – | – |
| Development and design of own machinesEngineering | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC machining centre | Hurco | 2 | – | – | Oberthingau / Kraftisried |
| CNC lathe | – | 1 | – | – | Oberthingau / Kraftisried |
| Double mitre saw | – | 2 | – | – | Oberthingau / Kraftisried |
| Welding robot | – | 2 | – | – | Oberthingau / Kraftisried |
Additional services
Reference customers
History
- 1860
Founded as a smithy
- 1963
Willhelm Grotz takes over the company from his father and renames it GROWI (Grotz Willhelm); first product: folding-paddle mixer (slurry pit mixer)
- 1990
Start of manufacturing log splitters for meter-long and short logs
- 2000
GROWI horizontal splitters come onto the market; Europe-wide patented re-splitting system
- 2004
Company handed over to Christof Freudling on 1 January; in June 2004 commissioning of the first CNC machines
- 2020
Innovation: automatic horizontal splitter with log return stroke for layered wood