CNC-turned and milled parts, internal broaching, 3D measuring and surface finishing for small to medium series.
Lehmann GmbH
Trossingen (DE) · Schwenningen am Neckar (place of founding)New on Amplifa
Machining with tradition since 1969
Lehmann GmbH is a machining company located in Trossingen near Schwenningen am Neckar. With around 30 employees, this family-owned company manufactures and machines demanding components from a wide variety of materials on modern CNC lathes (horizontal and vertical) as well as 3-, 4- and 5-axis vertical CNC machining centers with spindle speeds of up to 15,000 rpm. The range of services includes CNC turning and milling for small to medium-sized series, internal broaching on a vertical broaching machine with stroke lengths up to 1600 mm, 3D measuring, laser engraving as well as surface treatment such as hardening, tempering, anodizing, electroplating and burnishing. In addition, the company develops and sells its own products such as the MS-type tool holders and FIXUS-series quick vises, and offers CAD design and a hydraulics service. Customers come from mechanical and apparatus engineering, the supply industry and precision mechanics.
- Site
- Trossingen
- Processes
- CNC turning, CNC milling and drilling (3-, 4- and 5-axis, vertical CNC machining centers), Internal broaching, 3D measuring, Laser engraving, Surfaces/finishing (hardening, tempering, deep-freezing, anodizing, burnishing and electroplating), Heat treatment (hardening, tempering, deep-freezing), Manufacture of turned and milled parts in small to medium-sized series
- Materials
- Metal (workpieces from a wide variety of materials, production in the metal sector), Metal (various materials), CNC turning (horizontal/vertical), CNC milling and drilling, 3-, 4- and 5-axis, Internal broaching, Heat treatment (hardening, tempering, deep-freezing), Surfaces/finishing (anodizing, burnishing, electroplating), Laser engraving
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1969
- Employees
- ~30
- Industries
- Mechanical and apparatus engineering, Supply industry, Precision mechanics, Electrical engineering (historical)
- 01
CAD design
- 02
CNC turning
- 03
CNC milling and drilling
- 04
Internal broaching
- 05
Heat treatment and surface finishing
- 06
Laser engraving
- 07
3D measuring
- 08
Assembly/service
Materials and manufacturing processes
Metal (various materials)
Manufacturing and machining of workpieces from a wide variety of materials in the metal sector.
CNC turning (horizontal/vertical)
Manufacturing of turned and milled parts in small to medium-sized series.
CNC milling and drilling, 3-, 4- and 5-axis
Vertical machining centers with spindle speeds up to 15,000 rpm and drive power up to 22 kW.
Internal broaching
Vertical broaching machine with stroke lengths up to 1600 mm, workpiece size up to 500 x 350 mm and cutting force of 200 kN.
Heat treatment (hardening, tempering, deep-freezing)
Finishing of components to increase hardness and dimensional accuracy.
Surfaces/finishing (anodizing, burnishing, electroplating)
Surface treatment as a complement to machining.
Laser engraving
Marking with a 20-watt laser at a marking field of Ø 144 mm.
3D measuring
Etalon Derby measuring machine from Brown & Sharpe with RENISHAW probe and working range of 458 x 510 x 406 mm.
Locations
Trossingen
DEProduction site
- Lot size
- Small to medium series
- Materials
- Metal (various materials)
- Horizontal CNC lathes
- Vertical CNC lathes
- Vertical CNC machining centers (3-, 4- and 5-axis, up to 15,000 rpm, 22 kW)
- Vertical broaching machine (stroke up to 1600 mm, 200 kN)
- 3D measuring machine Etalon Derby Brown & Sharpe (RENISHAW probe)
- Laser marking machine (20 W, marking field Ø 144 mm)
- CAD workstations
Components and in-house products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turningMachining | – | – | – | – | a wide variety of materials |
| CNC milling and drilling (3-, 4- and 5-axis, vertical CNC machining centers)Machining | – | – | – | – | a wide variety of materials |
| Internal broachingMachining | – | Stroke length up to 1600 mm × 500 mm × 350 mm | – | – | – |
| 3D measuringInspection | – | 406 mm × 458 mm × 510 mm | 220 kg | – | – |
| Laser engravingSurface | – | – | – | – | – |
| Surfaces/finishing (hardening, tempering, deep-freezing, anodizing, burnishing and electroplating)Surface | – | – | – | – | – |
| Heat treatment (hardening, tempering, deep-freezing)Heat treatment | – | – | – | – | – |
| Manufacture of turned and milled parts in small to medium-sized seriesMachining | – | – | – | Small series – Medium-sized series | Metal |
| Manufacture of jigs, operating equipment and special systemsEngineering | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Horizontal CNC lathes | – | – | – | – | Trossingen |
| Vertical CNC lathes | – | – | – | – | Trossingen |
| Vertical CNC machining centers (3-, 4- and 5-axis, spindle speeds up to 15,000 rpm) | – | – | – | – | Trossingen |
| Vertical broaching machine (stroke length up to 1600 mm, cutting force 200 kN up to 6 m/min) | – | – | max. workpiece size 500 x 350 mm at broaching needle length 2000 mm | – | Trossingen |
| 3D measuring machine Etalon Derby Brown & Sharpe (RENISHAW probe) | Brown & Sharpe Etalon Derby | – | 458 x 510 x 406 mm | – | Trossingen |
| Laser marking machine (20-watt laser, marking field Ø 144 mm) | – | – | Marking distance 184 mm, marking field Ø 144 mm | – | Trossingen |
Additional services
Quality
Production is certified according to ISO 9001:2015 (production in the metal sector, manufacture of turned and milled parts in small to medium series). Quality assurance is carried out, among other things, with a Brown & Sharpe Etalon Derby 3D measuring machine with RENISHAW probe.
| Evidence | Trossingen |
|---|---|
| ISO 9001 |
History
- 1969
Company founded by master mechanic Horst Lehmann in Schwenningen am Neckar; started in a private residential building on Schützenstraße with the manufacture of jigs, operating equipment and special systems for mechanical and apparatus engineering.
- 1972
Relocation to Turnerstraße in Schwenningen; expansion to include assembly work for an electrical engineering company, around 20 employees.
- 1984
Relocation to an industrial park on Harzerstraße in Schwenningen; focus back on mechanical machining services.
- 1990
Relocation to a new company building in Trossingen with around 3000 m² of production space (the company website alternatively states 1991 for the location reference).
- 2000
Takeover of management by son Holger Lehmann; significant expansion of operations through several CNC turning and milling centers.
- 2017
Manufacturing and machining of demanding components with around 30 employees for various industries.