CNC precision mechanics with contract machining as well as proprietary products in clamping technology (centering points and precision chucks).
D. Roider Präzisionsmechanik AG
CH-8618 Oetwil am SeeNew on Amplifa
About us
D. Roider Präzisionsmechanik AG in Oetwil am See is an internationally active SME in the Swiss precision mechanics sector. As a contract manufacturer, the company produces machine and apparatus parts according to customer drawings, with a focus on CNC turning (including driven tools, Y-axis and sub-spindle), 5-axis milling, cylindrical, surface and centerless grinding as well as honing, welding, heat treatment and surface treatments such as sandblasting and trowalizing. In addition to contract work, the company develops and produces its own products in the field of clamping technology: fixed and rotating centering points of the ROTOR brand (since 1927) as well as pneumatic precision chucks with a wedge-hook system. Design is carried out with CAD/CAM support. Customers come from mechanical engineering, apparatus engineering, automotive, vehicle construction, medical technology and scales/metrology, including Bosch, Volkswagen and ZF. Deliveries go to Switzerland, various European countries and Canada.
- Site
- CH-8618 Oetwil am See
- Processes
- CNC turning (chuck work), CNC turning (chuck and collet work, driven tools, Y-axis, sub-spindle), CNC turning (collet and chuck work, bar feeder), Conventional turning, 5-axis machining (milling) Hermle C600U, 5-axis machining (milling) Hermle C32, CNC external cylindrical grinding, CNC internal cylindrical grinding
- Materials
- Tool steels, Steel
- Founded
- 1974
- Industries
- Mechanical engineering, Apparatus engineering, Automotive, Vehicle construction / tractor construction, Medical technology, Scales and metrology
- 01
Sandblasting
- 02
Design (CAD/CAM)
- 03
CNC turning
- 04
5-axis milling
- 05
Cylindrical and surface grinding
- 06
Centerless grinding
- 07
Honing
- 08
Welding (TIG, MIG/MAG)
- 09
Heat treatment / induction heating / hardening
- 10
Trowalizing
- 11
Measuring / testing
- 12
Assembly and shipping
Materials & Processes
Steel
Main material for machine and apparatus parts as well as centering points and chucks.
Tool steels
Hardened in small batches in a hardening furnace with oil bath.
Location
Oetwil am See
CHProduction and administration
- Lot size
- Prototype to small series/medium series
- Materials
- Steel, tool steels
Products & Parts
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turning (chuck work)Machining | – | 800 mm × Max. turning Ø 400 mm | – | – | – |
| CNC turning (chuck and collet work, driven tools, Y-axis, sub-spindle)Machining | – | 800 mm × Turning Ø 340 mm | – | – | – |
| CNC turning (collet and chuck work, bar feeder)Machining | – | 200 mm × Turning Ø 100 mm | – | – | – |
| Conventional turningMachining | – | 1250 mm (distance between centers) × Center height 195 mm | – | – | – |
| 5-axis machining (milling) Hermle C600UMachining | – | 600 mm × 450 mm × 450 mm | – | – | – |
| 5-axis machining (milling) Hermle C32Machining | – | 650 mm × 650 mm × 500 mm | – | – | – |
| CNC external cylindrical grindingMachining | – | 1000 mm (distance between centers) × Center height 175 mm | – | – | – |
| CNC internal cylindrical grindingMachining | – | 120 mm (grinding length) × Center height 130 mm | – | – | – |
| Conventional cylindrical grindingMachining | – | 1000 mm (distance between centers) × Center height 225 mm | – | – | – |
| Conventional surface grindingMachining | – | 750 mm × 340 mm | – | – | – |
| Centerless grindingMachining | – | 1100 mm × Ø 125 mm | – | – | – |
| Honing (bores Ø 8 – 45 mm)Surface | – | – | – | – | – |
| Welding (TIG)Joining | – | – | – | – | – |
| Welding (MIG/MAG, shielding gas)Joining | – | – | – | – | – |
| Induction heating (brazing, hardening, shrink-fitting)Heat treatment | – | – | – | – | – |
| Hardening of small batches of tool steels (hardening furnace with oil bath)Heat treatment | – | – | – | – | Tool steels |
| Sandblasting (small parts)Surface | – | – | – | – | – |
| TrowalizingSurface | – | – | – | – | – |
| Band sawing (round, 280 mm cutting range)Machining | – | 280 mm | – | – | – |
| Measuring / testing (3D coordinate measuring machine, roundness inspection, hardness testing)Inspection | – | – | – | – | – |
| Manufacture of centering points (fixed and rotating) for lathes and grinding machinesAssembly | – | – | – | – | – |
| Manufacture of precision chucks (pneumatic, wedge-hook system)Assembly | – | – | – | – | – |
25 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe | Mori-Seiki SL-25 | – | Max. turning Ø 400 mm, turning length 800 mm, spindle bore Ø 63 mm | – | Oetwil am See |
| CNC lathe with driven tools, Y-axis and sub-spindle | Okuma LB3000EX MYW | – | Turning Ø 340 mm, turning length 800 mm, spindle bore Ø 65 mm | – | Oetwil am See |
| CNC lathe | Takisawa TS-10 | – | Turning Ø 100 mm, turning length 200 mm, spindle bore Ø 36 mm | – | Oetwil am See |
| Conventional lathe | Schaublin and Colchester | – | Center height 195 mm, distance between centers 1250 mm | – | Oetwil am See |
| 5-axis machining center | Hermle C600U | – | Longitudinal 600 mm, transverse 450 mm, vertical 450 mm | – | Oetwil am See |
| 5-axis machining center | Hermle C32 | – | Longitudinal 650 mm, transverse 650 mm, vertical 500 mm | – | Oetwil am See |
| CNC external cylindrical grinding machine | Studer S35 | – | Center height 175 mm, distance between centers 1000 mm | – | Oetwil am See |
| CNC external cylindrical grinding machine | Kellenberger KEL-VISTA R175/600 | – | Center height 175 mm, distance between centers 600 mm | – | Oetwil am See |
| CNC internal cylindrical grinding machine | Tripet TST 120 | – | Center height 130 mm, grinding length 120 mm, X/Z travel 340 mm each | – | Oetwil am See |
| Conventional cylindrical grinding machine | Kellenberger 600U | – | Center height 125 mm, distance between centers 600 mm | – | Oetwil am See |
| Conventional cylindrical grinding machine | Kellenberger 1000U | – | Center height 225 mm, distance between centers 1000 mm | – | Oetwil am See |
| Conventional surface grinding machine | Okamoto (listed as "Okamota" on the website) ACC 63 DXB | – | Longitudinal 750 mm, transverse 340 mm, with electronic control | – | Oetwil am See |
| Centerless grinding machine | Technica | – | Max. workpiece size Ø 125 mm, length 1100 mm | – | Oetwil am See |
| Universal honing machine | Kammerer | – | Bore Ø 8 – 45 mm | – | Oetwil am See |
| TIG welding rectifier | Fronius Transtig 1600 | – | – | – | Oetwil am See |
| Shielding-gas semi-automatic welding machine with rotary fixture | ESAB LAG 200 Ampère | – | – | – | Oetwil am See |
| Induction heating system | IEW TTH 10 | – | 10 kW continuous operation | – | Oetwil am See |
| Automatic band saw | KASTO | – | Cutting range round 280 mm | – | Oetwil am See |
| Hardening furnace with oil bath | Nabertherm | – | – | – | Oetwil am See |
| Sandblasting system for small parts | Iepco | – | – | – | Oetwil am See |
| Trowalizing system | – | – | – | – | Oetwil am See |
| 3D coordinate measuring machine | TESA Micro-Hite | – | – | – | Oetwil am See |
| Form tester (roundness inspection of shafts and bores) | Mahr | – | – | – | Oetwil am See |
| Hardness testing device | Hauser | – | – | – | Oetwil am See |
| Short bar feeder | LNS | – | – | – | Oetwil am See |
Additional services
Reference customers
History
- 1927
ROTOR begins production of fixed and rotating points for lathes and grinding machines
- 1974
Founded as a sole proprietorship by Dani and Monika Roider at Esslingerstrasse 17, Oetwil am See
- 1980
New construction of a residential and commercial building on Eichbüelstrasse; acquisition of the first numerically controlled milling machine
- 1992
Acquisition of the ROTOR brand
- 1993
Presentation of ROTOR products manufactured in Oetwil at the EMO in Hanover
- 1995
Founding of the subsidiary ROTOR TOOL GmbH for development and distribution
- 1997
Introduction of CAD
- 1999
Marcel Britt and David Roider join the company; move to the renovated former welding hall of WSO-Maschinenfabrik AG, Oetwil
- 2004
Two new CNC grinding machines to increase quality and productivity
- 2005
Conversion of the sole proprietorship into an AG (corporation); David Roider, Sara Britt-Roider and Marcel Britt become co-owners
- 2007
Acquisition of the company Graber, manufacturer of precision chucks