Coining, stamped part production, turning and CNC milling of dial blanks and watch components in La Chaux-de-Fonds.
Li Calzi Technofrap SA
La Chaux-de-Fonds, SwitzerlandNew on Amplifa
About Li Calzi Technofrap SA
Li Calzi Technofrap SA is a supplier to the watchmaking industry based in La Chaux-de-Fonds, focusing on dial blanks (ébauches de cadrans), pendulettes, hands, appliqués and other watch components. The service portfolio includes coining (frappe) on nine coining hammers (balanciers), stamped part production on three cutting presses, various turning operations on six lathes, as well as milling and drilling of simple and complex dials, including in mother-of-pearl, on three 3-axis simultaneous CNC machines. In addition, the company manufactures complex coining dies by CNC and by electroforming (electrodeposition) for cold coining. Processes such as electric welding, furnace soldering of feet and annealing in a furnace with two belts round out the manufacturing depth. Materials processed include brass, mild steel, silver, gold and nickel silver. A 100% visual inspection after every production stage ensures the quality of the delivered parts.
- Site
- La Chaux-de-Fonds
- Processes
- Frappe (dial blanks, pendulettes, hands, appliqués, watch components), Découpage (blanking/punch cutting), Turning (thicknessing, shouldering, etc.), Milling and drilling of high-end and complex dials (mother-of-pearl and any other component), Manufacture of complex coining dies by CNC (3-axis simultaneous machining centers), Manufacture of coining dies by electroforming (electrodeposition, matrices for cold coining), Electric welding, Furnace welding of feet / furnace soldering
- Materials
- Laiton (brass), Fer doux (mild steel), Argent (silver), Or (gold), Maillechort (nickel silver), Nacre (mother-of-pearl)
- Certificates
- 100% visual inspection after every stage, Technical inspection with inspection report and archiving, ISO 9001
- Founded
- 1992
- Industries
- Watchmaking / watch industry, Watchmaking / watch industry (dial blanks and watch components)
- 01
Coining die manufacture (CNC or electroforming)
- 02
Coining (frappe)
- 03
Stamped part production (découpage)
- 04
Turning
- 05
Milling and drilling of the dials
- 06
Foot soldering/welding (electric or furnace)
- 07
Annealing (heat treatment)
- 08
100% visual inspection and technical control with inspection report
Locations
La Chaux-de-Fonds
CHProduction site / headquarters
- Materials
- Brass, mild steel, silver, gold, nickel silver, mother-of-pearl
- 9 balanciers (coining hammers)
- 6 lathes
- 3 cutting presses
- 3 CNC milling machines for dials
- 3-axis simultaneous machining centers for dies
- Furnace with 2 belts (annealing/furnace soldering)
- Marcel Aubert inspection device
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Frappe (dial blanks, pendulettes, hands, appliqués, watch components)Forming | – | – | – | – | Brass, Mild steel, Silver, Gold, Nickel silver |
| Découpage (blanking/punch cutting)Forming | – | – | – | – | – |
| Turning (thicknessing, shouldering, etc.)Machining | – | – | – | – | – |
| Milling and drilling of high-end and complex dials (mother-of-pearl and any other component)Machining | – | – | – | – | Mother-of-pearl |
| Manufacture of complex coining dies by CNC (3-axis simultaneous machining centers)Machining | – | – | – | – | – |
| Manufacture of coining dies by electroforming (electrodeposition, matrices for cold coining)Surface | – | – | – | – | – |
| Electric weldingJoining | – | – | – | – | – |
| Furnace welding of feet / furnace solderingJoining | – | – | – | – | – |
| Annealing (2-belt furnace)Heat treatment | – | – | – | – | – |
| Visual inspection / technical and aesthetic control (100% after each department, inspection report)Testing | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Balanciers (coining hammers) | – | 9 | – | – | La Chaux-de-Fonds |
| Lathe (tour) | – | 6 | – | – | La Chaux-de-Fonds |
| Cutting press (presse à découper) | – | 3 | – | – | La Chaux-de-Fonds |
| CNC (milling machine for dials, 3-axis) | – | 3 | – | – | La Chaux-de-Fonds |
| 3-axis simultaneous machining center (dies) | – | – | 3 simultaneous axes | – | La Chaux-de-Fonds |
| 2-belt furnace (oven, annealing/welding) | – | 1 | – | – | La Chaux-de-Fonds |
| "Marcel Aubert" (inspection device) | Marcel Aubert | – | – | – | La Chaux-de-Fonds |
Additional services
Quality
Quality management with a quality manager is established in all production areas. Every dial is 100% visually inspected after each stage; every 20 parts, an aesthetic and technical inspection is performed, which is delivered with an inspection report and archived internally.
| Evidence | La Chaux-de-Fonds |
|---|---|
| 100% visual inspection after every stage | |
| Technical inspection with inspection report and archiving | |
| ISO 9001 |
History
- 1992
Founding and establishment of Li Calzi Technofrap SA in La Chaux-de-Fonds