CNC contract manufacturing to drawing: turning, milling, grinding and sawing up to Ø 250 mm for industry.
Frank & Alois Litim GmbH & Co. KG
Bochumer Str. 12, 42279 WuppertalNew on Amplifa
About Litim
Frank & Alois Litim GmbH & Co. KG is a contract turning shop in Wuppertal that has specialized in CNC contract manufacturing to drawing since 1990. Its core competencies include turning, hard turning and precision turning, high-performance and high-feed milling, surface grinding, and cylindrical external and internal grinding. The company produces turned, milled and ground parts up to a diameter of 250 mm and a maximum length of 600 mm, particularly from steel and rolling bearing steel 100Cr6. It manufactures components for the rolling bearing industry, automotive suppliers, mechanical engineering, the tool industry, wind power and rail transport. Production is controlled by SAP Business One as ERP system and a Böhme & Weihs MES; quality is recorded by Heidenhain inline measuring probes during ongoing production. In addition to machining, Litim handles material procurement, warehousing, product acceptance inspections and the coordination of hardening and various coating processes.
- Site
- Wuppertal
- Processes
- Turning (CNC turning), Hard turning, Precision turning, High-performance milling, High-feed milling, Surface grinding, Cylindrical external grinding, Cylindrical internal grinding
- Materials
- Steel, Rolling bearing steel 100Cr6, Ceramic coating, KTL coating, Corrotect coating, Phosphating, Black passivation, Hardening/heat treatment
- Certificates
- ISO 9001:2015, ISO 14001:2015, Digital QA (MES, SPC)
- Founded
- 1990
- Industries
- Rolling bearing industry, Automotive suppliers, Mechanical engineering, Tool industry, Wind power, Rail transport
- 01
Material procurement
- 02
Sawing
- 03
CNC turning / hard turning
- 04
CNC milling
- 05
Grinding (surface, cylindrical external/internal)
- 06
Heat treatment & coating (coordination)
- 07
Inspection & product acceptance
- 08
Warehousing & dispatch
Materials & Processes
Steel
Basis of soft and hard machining in turning, milling, grinding and sawing
Rolling bearing steel 100Cr6
Standard material for contract turning and hard grinding
Ceramic coating
Protection against corrosion or electrical insulation of metal components
KTL coating
Cathodic dip coating as corrosion protection
Corrotect coating
Zinc flake corrosion protection on metal components
Phosphating
Pretreatment and corrosion protection
Black passivation
Surface finishing after treatment
Hardening/heat treatment
Coordination of the heat treatment of steel components
Locations
Wuppertal
DEHeadquarters / Production
- Part weight / size
- Ø 250 mm, max. length 600 mm
- Lot size
- 50 – 50,000 pieces
- Materials
- Steel, rolling bearing steel 100Cr6
- CNC lathes
- Milling machines
- Surface grinding machines
- Cylindrical grinding machines
- High-performance circular saws
- Band saws
- SAP Business One ERP
- Böhme & Weihs MES
- Heidenhain inline measuring probes
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turning (CNC turning)Machining | IT6/IT7 | 600 mm | – | 50 pieces – 50,000 pieces | Steel, Rolling bearing steel 100Cr6 |
| Hard turningMachining | IT6/IT7 | 600 mm | – | 50 pieces – 50,000 pieces | Steel, Rolling bearing steel 100Cr6 |
| Precision turningMachining | IT6/IT7 | 600 mm | – | 50 pieces – 50,000 pieces | Steel, Rolling bearing steel 100Cr6 |
| High-performance millingMachining | IT6/IT7 | – | – | 50 pieces – 50,000 pieces | Steel |
| High-feed millingMachining | IT6/IT7 | – | – | 50 pieces – 50,000 pieces | Steel |
| Surface grindingMachining | IT6/IT7 | – | – | 50 pieces – 50,000 pieces | Steel |
| Cylindrical external grindingMachining | IT6/IT7 | – | – | 50 pieces – 50,000 pieces | Steel |
| Cylindrical internal grindingMachining | IT6/IT7 | – | – | 50 pieces – 50,000 pieces | Steel |
| High-performance circular sawingMachining | – | – | – | – | Steel |
| Band sawingMachining | – | – | – | – | Steel |
| Ceramic coating (coordination)Surface | – | – | – | – | Metals |
| KTL coating (coordination)Surface | – | – | – | – | Metals |
| Corrotect coating (coordination)Surface | – | – | – | – | Metals |
| Phosphating (coordination)Surface | – | – | – | – | Metals |
| Black passivation (coordination)Surface | – | – | – | – | Metals |
| Hardening (coordination)Heat treatment | – | – | – | – | Steel |
| Material procurement, warehousing, product acceptance inspectionsEngineering | – | – | – | – | – |
Additional services
Quality
Quality assurance is carried out using Heidenhain inline measuring probes during production and automatic measurement data acquisition via the Böhme software with SPC control charts. The processes are certified according to ISO 9001:2015; every production step is documented and fully traceable.
| Evidence | Wuppertal |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| Digital QA (MES, SPC) |
History
- 1990
Founding of the contract turning shop by the brothers Frank and Alois Litim with a single lathe in Wuppertal.