Precision CNC parts and assemblies for watchmaking, medical technology, mechanical engineering and aerospace – since 1962.
LEIKO SA
Föhrenweg 9, 2544 Bettlach · SwitzerlandNew on Amplifa
About us
LEIKO SA is a Swiss family-owned precision mechanics company based in Bettlach in the canton of Solothurn. The company manufactures prototypes, individual parts and small series in lot sizes of 1 to 10 000 pieces and component sizes from 0.1 to 1000 mm. Its value chain covers 3- and 5-axis CNC milling, EDM, turning as well as hard machining with hard milling, cylindrical and surface grinding, honing and lapping – through to complete solutions for complex, ready-to-install assemblies. Materials processed include steels, superalloys such as Hastelloy C22, aluminium, brass, copper, titanium, ceramics, plastics as well as electrically conductive, heat-resistant and fibre-reinforced materials. Customers come primarily from the watch industry, medical and dental technology, automation, mechanical and fixture engineering, and aerospace. Using CAD/CAM systems, LEIKO supports customers from the development phase through optimisation of manufacturability and cost-effectiveness to series production.
- Site
- Bettlach
- Processes
- CNC milling, 3-axis milling, 5-axis milling (interference circle 550), EDM, Turning, Hard milling, Cylindrical and surface grinding, Honing
- Materials
- Structural steel, high-alloy tool steels, stainless steels, Hastelloy C22, Aluminium, Brass, Copper, Titanium
- Certificates
- First article inspection reports, Inspection reports, Batch traceability, Measuring microscope inspection
- Founded
- 1962
- Industries
- Watch industry, Medical and dental technology, Automation, Mechanical engineering, Fixture engineering, Prototyping
- 01
Development and prototyping / CAD-CAM consulting
- 02
CNC milling (3- and 5-axis)
- 03
EDM
- 04
Turning
- 05
Hard machining (hard milling, cylindrical and surface grinding, honing, lapping)
- 06
Quality assurance
- 07
Assembly of ready-to-install assemblies
Materials & Processes
Structural steel
For load-bearing machine elements and complex components.
high-alloy tool steels
Tool and fixture parts, including hard milling as well as cylindrical and surface grinding.
stainless steels
For corrosion-resistant components in medical and watch technology.
Hastelloy C22
Superalloy for highly stressed, corrosion-resistant components.
Aluminium
Lightweight milled housings and structural parts, including for aerospace.
Brass
Ready-to-install watch parts and manufactured components for automation.
Copper
For electrically conductive components and operating equipment.
Titanium
Lightweight, high-strength precision parts, including watch components.
Ceramics
Wear-resistant components for demanding applications.
Plastics
Including electrically conductive, heat-resistant and fibre-reinforced materials.
Locations
Bettlach
CHHeadquarters / Manufacturing
- Part weight / size
- Component sizes 0.1–1000 mm
- Lot size
- 1–10 000 pieces
- Materials
- Steel, stainless steel, Hastelloy C22, aluminium, brass, copper, titanium, ceramics, plastics
- 5-axis milling machine from Kern Microtechnik (interference circle 550 mm)
- 3-axis milling machine (X 1000 / Y 600 mm)
- Sodick wire EDM machine (X 600 / Y 400 mm, workpiece height 0.2–350 mm)
- Lathes (Ø 1–300 mm)
- Cylindrical and surface grinding machine
- Measuring microscope
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC millingMachining | – | 1000 mm × 600 mm | – | 1 – 10000 | Structural steel, Tool steels, Stainless steels, Hastelloy C22, Aluminium, Brass, Copper, Titanium, Ceramics, Plastics |
| 3-axis millingMachining | – | 1000 mm × 600 mm | – | 1 – 10000 | Structural steel, Tool steels, Stainless steels, Hastelloy C22, Aluminium, Brass, Copper, Titanium, Ceramics, Plastics |
| 5-axis milling (interference circle 550)Machining | – | 550 mm | – | 1 – 10000 | Structural steel, Tool steels, Stainless steels, Hastelloy C22, Aluminium, Brass, Copper, Titanium, Ceramics, Plastics |
| EDMMachining | – | 350 mm × 600 mm × 400 mm | 0.2 mm – 350 mm | 1 – 10000 | Stainless steels, Tool steels |
| TurningMachining | – | 300 mm (Ø) | Ø 1 mm – Ø 300 mm | 1 – 10000 | Structural steel, Stainless steels, Aluminium, Brass, Copper, Titanium |
| Hard millingMachining | – | – | – | 1 – 10000 | Tool steels |
| Cylindrical and surface grindingMachining | – | – | – | 1 – 10000 | Tool steels, Stainless steels |
| HoningMachining | – | – | – | – | – |
| LappingMachining | – | – | – | – | – |
| Hard machiningMachining | – | – | – | – | Tool steels |
| Inspection reports / first article inspection reportsTesting | – | – | – | 1 – 10000 | – |
| Measuring microscope measurement (watch industry)Testing | – | – | – | – | – |
| Batch traceabilityTesting | – | – | – | – | – |
| Development and prototyping / CAD/CAM consultingEngineering | – | – | – | 1 – 10000 | – |
| Complete solutions for complex assemblies / assembly of ready-to-install productsAssembly | – | – | – | 1 – 10000 | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis milling machine | Kern Microtechnik | – | Interference circle 550 mm | – | Bettlach, CH |
| Milling machine 3-axis | – | – | X 1000 | Y 600 mm | – | Bettlach, CH |
| EDM machine | – | – | Travel X 600 | Y 400 mm, workpiece height 0.2–350 mm | – | Bettlach, CH |
| Lathe | – | – | Diameter Ø 1–300 mm | – | Bettlach, CH |
| Cylindrical and surface grinding machine | – | – | – | – | Bettlach, CH |
| Measuring microscope | – | – | – | – | Bettlach, CH |
Additional services
Quality
Quality assurance includes inspection reports, first article inspection reports, measurement with a measuring microscope for the watch industry, and batch traceability.
| Evidence | Bettlach |
|---|---|
| First article inspection reports | |
| Inspection reports | |
| Batch traceability | |
| Measuring microscope inspection |
History
- 1962
Company has been established in Bettlach since 1962.
- 2026
The trade journal Technische Rundschau describes the working methods on the 5-axis milling machine from Kern Microtechnik (March 2026).