Contract manufacturing for CNC turning, 5-axis milling, grinding and assembly of precision parts to drawing.
Officine Di Giacopo SA
Riazzino (Canton Ticino) · Via alla Bolla 4New on Amplifa
About Officine Di Giacopo SA
Officine Di Giacopo SA is a contract manufacturer for precision mechanics in Riazzino in the canton of Ticino. Founded in Quartino in 1986, the family-run company manufactures to drawing or sample, from prototype to large-scale series. The value chain includes sawing, CNC turning up to Ø600 mm and 1300 mm in length, 5-axis milling with 3000 mm X travel, surface grinding, honing and sizing of bores Ø4–500 mm, sandblasting, painting and assembly of subassemblies with defined fits. Materials processed include stainless steel (1.4301), C45E+N, alloyed steels, P355NL2, cast iron (GJS-400-15), brass and aluminium; heat and surface treatments are carried out via an established partner network. The company is certified to ISO 9001:2015 and qualified with EN 15085-2 CL1 and IRIS for the European railway sector. Customers come from the rail vehicle industry, the food industry as well as mechanical and plant engineering. Twelve employees manufacture with 100 % traceability via the ERP system and CAD/CAM support.
- Site
- Riazzino
- Processes
- CNC turning, Turn-milling, 5-axis milling, Surface grinding, Honing/sizing (bores Ø4–500), Sawing (bandsaw), Sandblasting, Painting (in-house or with partner)
- Materials
- Stainless steel 1.4301, Acciaio inox (stainless steel), C45E+N, GJS-400-15, Brass, P355NL2, Aluminium, alloyed steels
- Certificates
- ISO 9001:2015, EN 15085-2 CL1 (scope of activity S), IRIS Certification (Rolling Stock & Infrastructure, Components), ISO 9001, EN 15085-2 CL1, IRIS (Rolling Stock)
- Founded
- 1986
- Employees
- 12
- Industries
- Railway sector (Rolling Stock), Food industry, Mechanical and plant engineering
- 01
Sawing of raw material
- 02
CNC turning
- 03
5-axis milling / turn-milling
- 04
Surface grinding
- 05
Honing and sizing
- 06
Sandblasting
- 07
Painting
- 08
Heat/surface treatment (partner)
- 09
Dimensional inspection
- 10
Assembly
Materials and Processes
Stainless steel 1.4301
Used mainly for components of the food industry with hygienic requirements.
Steel C45E+N
Machining steel for turned and ground components, also in the hardened state.
Steel P355NL2
Material for milled components in the 5-axis area, e.g. in mechanical engineering.
Cast iron EN-GJS-400-15
Casting material for turned and milled parts with good machinability.
Brass
Used in CNC turning for small, precise components.
Aluminium
Material for 5-axis milled parts with complex geometries.
Alloyed steels
Used in milling and grinding, including rolling bearing steels.
Rolling bearing steels
For hardened, ground and honed fitting parts.
Locations
Riazzino
CHProduction site and headquarters
- Lot size
- Prototype to large-scale series
- Materials
- Stainless steel 1.4301, C45E+N, P355NL2, GJS-400-15, brass, aluminium
- Doosan VCF 850LSR II (5-axis, X 3000 mm, rotary table Ø800)
- Hermle C 42 U MT
- Kitamura HX500JA
- Doosan Puma 200 MC / 230 MC / 3100 M / 3100 LY
- Doosan DNM 6700 / Mynx 750
- ELB SV5 surface grinding machine
- Sunnen and LAY-500 sizing/honing machines
- KASTO VERTO A2 bandsaw
- TESA Micro-Hite 3D measuring machine
- Zoller Smile 400P
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turningMachining | ±0.01 mm | 1300 mm | – | Single part/prototype – Large-scale series | Stainless steel 1.4301, C45E+N, EN-GJS-400-15 (GJS-400-15), Brass |
| Turn-millingMachining | – | Ø 600 mm | – | – | – |
| 5-axis millingMachining | ±0.01 mm · Ra 0.4 | 3000 mm (X travel VCF 850LSR II) × 850 mm (Y) × 800 mm (Z) | – | Prototype – Large-scale series | P355NL2, GJS-400-15, Aluminium, alloyed steels |
| Surface grindingMachining | – | 300 × 500 (ELB SV5) | – | – | C45E+N hardened, Rolling bearing steels |
| Honing/sizing (bores Ø4–500)Machining | Internal roughness to specified | Ø 4–500 mm | – | – | C45E+N hardened, Rolling bearing steels |
| Sawing (bandsaw)Machining | – | – | – | – | broad spectrum of machinable materials |
| SandblastingSurface | – | – | – | – | – |
| Painting (in-house or with partner)Surface | – | – | – | – | – |
| Heat treatment (external with partners)Heat treatment | – | – | – | – | – |
| Surface treatment (external with partners)Surface | – | – | – | – | – |
| Welding of rail vehicles and rail vehicle parts to EN 15085-2Joining | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Dimensional inspection / MetrologyInspection | ±0.01 mm | – | – | – | – |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining centre (vertical) | Doosan VCF 850LSR II | 1 | X 3000 mm, Y 850 mm, Z 800 mm, rotary table Ø800, table 3500 × 870 mm, B ±110° | 2025 | Riazzino |
| 5-axis turn-milling centre | Hermle C 42 U MT | – | Turn-milling up to Ø600 | – | Riazzino |
| Horizontal machining centre | Kitamura HX500JA | – | – | – | Riazzino |
| CNC lathe | Doosan Puma 200 MC | – | – | – | Riazzino |
| CNC lathe | Doosan Puma 230 MC | – | – | – | Riazzino |
| CNC lathe (Y-axis) | Doosan Puma 3100 M | – | – | – | Riazzino |
| CNC lathe (Y-axis) | Doosan Puma 3100 LY | – | – | – | Riazzino |
| Vertical machining centre | Doosan DNM 6700 | – | – | – | Riazzino |
| Vertical machining centre | Doosan Mynx 750 | – | – | – | Riazzino |
| Surface grinding machine | ELB SV5 | – | 300 × 500 | – | Riazzino |
| Sizing/honing machine | Sunnen | – | Ø4–65 | – | Riazzino |
| Sizing/honing machine | LAY-500 | – | Ø20–500 | – | Riazzino |
| Bandsaw | KASTO VERTO A2 | – | Bars and blocks | – | Riazzino |
| 3D measuring machine | TESA Micro-Hite | – | – | – | Riazzino |
| Tool presetting device | Zoller Smile 400P | – | – | – | Riazzino |
Additional services
Quality and Certifications
Dimensions and form and position tolerances are inspected part by part using 3D metrology (TESA Micro-Hite); 100 % traceability is ensured via the ERP system. The quality management system is certified to ISO 9001:2015 (SQS).
| Evidence | Riazzino |
|---|---|
| ISO 9001 | |
| EN 15085-2 CL1 | |
| IRIS (Rolling Stock) |
History
- 1986
Foundation of Officine Di Giacopo in Quartino as a sole proprietorship
- 1999
Conversion of the sole proprietorship into a joint-stock company (SA)
- 2003
Move on 1 January from Quartino to a new, larger building in Riazzino
- 2012
Certification to ISO 9001 by SQS (since 13 July 2012)
- 2014
Certification DIN EN 15085-2 by the Swiss Welding Association (SVS)
- 2016
30th anniversary
- 2021
Receipt of IRIS certification for the European railway sector
- 2025
New 5-axis machining centre VCF 850LSR II (X travel 3000 mm, rotary table Ø800)
- 2026
40th anniversary; EN 15085 certificate renewed (valid until 06.05.2029)