
Precision CNC machining, qualified welding and assembly of complex industrial components in Switzerland

AMG P. Henchoz SA
Echallens (Headquarters, Production) · Chez-le-Bart (Registered Office)New on Amplifa
About AMG SA
AMG P. Henchoz SA is a private Swiss precision manufacturing company founded in 1984 and headquartered in Echallens in the canton of Vaud. The company produces custom parts and assemblies for industrial applications: 5-axis and 4-axis CNC milling (including automated operation with 40 pallets), CNC turning with driven tools, internal and external cylindrical grinding with precision down to ±0.003 mm, as well as conventional manufacturing processes such as turning, milling, drilling, planing and honing for prototypes and repair jobs. In addition, qualified welding processes for stainless steel, aluminium, steel and special alloys such as Hastelloy C-22 as well as mechanical assembly of complete sub-assemblies are offered. More than 150 materials are machined, including steels, stainless steels, aluminium, non-ferrous metals and special alloys. Large-format components up to 3000 × 800 × 900 mm are possible on the Ibarmia machine. Customers come from medical technology and pharma, food and packaging machinery, the chemical and paper industries, drive technology, machine tool manufacturing and other demanding industrial sectors. Under one name, AMG SA unites three specialist brands for large-format machining, certified welding and precision machining of non-ferrous metals.
- Site
- Echallens
- Processes
- 5-axis CNC milling (automated), 4-axis horizontal milling, Large-Format CNC Machining (3-axis milling), CNC turning with driven tools (live tooling), Internal and external cylindrical grinding (Precision grinding & finishing), Conventional manufacturing: manual turning, milling, drilling, planing, honing, Qualified welding (stainless steel, aluminium, steel, special alloys such as Hastelloy C-22), Mechanical assembly / complete sub-assemblies
- Materials
- Steels, Stainless steels, Aluminium, Special alloys, Hastelloy C-22, Non-ferrous metals, Stainless steel, 5-axis CNC milling
- Certificates
- Material traceability (EN 13445-4, AD 2000-HP0, ASIT 201), Qualified welding procedures (QMOS, DMOS & QS; groups 8.1, 8.2 & 43;, Qualified welding procedures (QMOS, DMOS & QS; groups 8.1, 8.2 & 43), Endoscopy & pressure tests, Independent PT & VT
- Founded
- 1984
- Industries
- Medical technology & pharma, Food processing & packaging machinery, Chemical, paper & coating industries, Industrial plant & automation, Drive technology & energy infrastructure, Transport, construction & public projects
- 01
Technical review of drawing, material and tolerances
- 02
Production planning and process selection
- 03
Manufacturing (CNC machining, welding, finishing)
- 04
Inspection and documentation
- 05
Delivery and technical after-sales support
Materials & Processes
Steels
Base material for industrial components, welded constructions and precision-ground components.
Stainless steel
For applications in medical technology, pharma and the food industry, as well as qualified welding.
Aluminium
Lightweight components and complex 5-axis milled components.
Hastelloy C-22
Special alloy with documented welding qualifications for chemically demanding applications.
Non-ferrous metals
Precision machining of high-quality non-ferrous metals (specialist brand Jean-Paul Thonney SA).
5-axis CNC milling
Complex components, automated with 40 pallets on the Matsuura MAM 72-35V.
4-axis horizontal milling
Efficient multi-side machining on the Matsuura H.Plus 405 with 12 pallets.
CNC turning with driven tools
Combined turning and milling operations up to Ø700 × 1000 mm (Ikegaï TUR 26).
Internal and external cylindrical grinding
Precision finishing down to ±0.003 mm on the Kellenberger grinding machine.
Qualified welding
QMOS, DMOS & QS for stainless steel, aluminium, steel and special alloys.
Conventional manufacturing
Manual turning, milling, drilling, planing and honing for prototypes and repairs.
Mechanical assembly
Complete sub-assemblies with documented final inspection.
Locations

Echallens
CHHeadquarters, production (CNC machining, welding, assembly)
- Part weight / size
- Large-format milling up to 3000 × 800 × 900 mm
- Lot size
- Prototypes to series production (40-pallet automation)
- Materials
- Steel, stainless steel, aluminium, non-ferrous metals, special alloys
Chez-le-Bart
CHRegistered office (Société AMG SA, commercial register)
Components & Manufacturing


Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 5-axis CNC milling (automated)Machining | ±0.003 mm | – | – | Series production (40 pallets) | Steels, Aluminium, Special alloys, Non-ferrous metals |
| 4-axis horizontal millingMachining | – | – | – | 12 pallets | Steels, Aluminium, Special alloys |
| Large-Format CNC Machining (3-axis milling)Machining | – | 3000 mm × 800 mm × 900 mm | – | – | Steels, Aluminium, Special alloys |
| CNC turning with driven tools (live tooling)Machining | – | 1000 mm | – | – | Steels, Aluminium, Special alloys |
| Internal and external cylindrical grinding (Precision grinding & finishing)Machining | ±0.003 mm | – | – | – | Steels, Special alloys |
| Conventional manufacturing: manual turning, milling, drilling, planing, honingMachining | – | 1200 mm × 410 mm | – | Single parts/repair/prototypes | Metals |
| Qualified welding (stainless steel, aluminium, steel, special alloys such as Hastelloy C-22)Joining | – | – | – | – | Stainless steel, Aluminium, Steel, Hastelloy C-22, Special alloys |
| Mechanical assembly / complete sub-assembliesAssembly | – | – | – | – | Metals |
| Surface FinishingSurface | – | – | – | – | Metals |
| HoningSurface | – | – | – | – | Metals |
| Inspection & testing: dimensional and surface reports, endoscopy, pressure tests, independent PT &Testing | – | – | – | – | – |
23 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining centre (vertical) | Matsuura MAM 72-35V | 1 | 40 pallets | – | Echallens |
| 5-axis machining centre | Deckel Maho DMU 80U | 1 | – | – | Echallens |
| 5-axis machining centre | Deckel Maho DMU 60U | 1 | – | – | Echallens |
| 5-axis machining centre | Ibarmia ZVH Extreme | 1 | 3000 × 800 × 900 mm | – | Echallens |
| 4-axis horizontal machining centre | Matsuura H.Plus 405 | 1 | 12 pallets | – | Echallens |
| 4-axis horizontal machining centre | Okuma | 1 | 2 pallets | – | Echallens |
| 3-axis machining centre (vertical) | Daewoo Mynx 650 (with table divider) | 1 | – | – | Echallens |
| 3-axis machining centre (vertical) | Doosan DNM 650 | 1 | – | – | Echallens |
| 3-axis machining centre (vertical) | Daewoo VM 900 (with table divider) | 1 | – | – | Echallens |
| 3-axis machining centre (vertical) | Hyundai-Kia VX 500 | 1 | – | – | Echallens |
| CNC lathe | Doosan Puma 300 | 1 | – | – | Echallens |
| CNC lathe | Doosan Puma 400 | 2 | – | – | Echallens |
| CNC lathe | Mori-Seiki SL25 | 1 | – | – | Echallens |
| CNC lathe | Mori-Seiki T10 | 1 | – | – | Echallens |
| CNC lathe with driven tools | Ikegaï TUR 26 | 1 | Ø700 × 1000 mm | – | Echallens |
| Internal and external cylindrical grinding machine | Kellenberger | 1 | – | – | Echallens |
| Conventional lathe | Schaublin 102 | 1 | – | – | Echallens |
| Conventional lathe | Cazeneuve | 1 | – | – | Echallens |
| Conventional milling machine | Schaublin 53 | 1 | – | – | Echallens |
| Drilling machine | SACEM | 1 | – | – | Echallens |
| Planing machine | – | 1 | 1200 x 410 mm | – | Echallens |
| Honing machine | Sunnen | 1 | – | – | Echallens |
| Pillar drilling machine | Aciera | – | – | – | Echallens |
Additional services
Quality & Certifications
AMG SA documents material properties, dimensional conformity and surface condition by means of inspection reports, endoscopy, pressure tests and independent penetrant testing (PT) and visual testing (VT). The welding procedures and welder qualifications are certified by the Swiss Safety Center.
| Evidence | Echallens |
|---|---|
| Material traceability (EN 13445-4, AD 2000-HP0, ASIT 201) | |
| Qualified welding procedures (QMOS, DMOS & QS; groups 8.1, 8.2 & 43) | |
| Endoscopy & pressure tests | |
| Independent PT & VT |
Company History
- 1984
Foundation of the company in Echallens, canton of Vaud.
- 2018
Last commercial register publication of Société AMG SA (registered office Chez-le-Bart, canton of Neuchâtel).