Swiss manufacturer of high-precision centers, precision clamping chucks and custom clamping solutions for manufacturing technology.
ROTOR TOOL AG
Oetwil am See (CH)New on Amplifa
About us
ROTOR TOOL AG in Oetwil am See develops and produces high-precision clamping and centering solutions for modern manufacturing. The product range includes live (rotating) centers with Morse tapers MK 1 to MK 7 as well as metric tapers and cylindrical shanks, fixed carbide centers for grinding, measuring and inspection, and precision clamping chucks in rotating and stationary versions, complemented by accessories such as air supply tubes, attached jaws, steel flanges and recessing devices. Manufacturing includes cylindrical, internal cylindrical and universal cylindrical grinding, CNC milling and CNC turning in steel and carbide; special centers achieve a maximum radial runout deviation of 0.002 mm. Customers come from mechanical engineering, grinding technology, turning technology, toolmaking, medical technology and precision mechanics. The company traces back to the ROTOR center patented in 1926 and has operated as ROTOR TOOL since 1995.
- Site
- Oetwil am See
- Processes
- Internal grinding, Universal cylindrical grinding, CNC internal cylindrical grinding, CNC universal cylindrical grinding, Milling, Turning, Cylindrical grinding, Hard turning
- Materials
- Carbide, Steel (flanges, clamping chucks, centers), Steel
- Certificates
- ISO 9001
- Founded
- 1995 (ROTO
- Industries
- Mechanical engineering, Grinding technology, Turning technology, Toolmaking, Medical technology, Precision mechanics
- 01
Engineering and custom manufacturing
- 02
CNC milling
- 03
CNC turning
- 04
Cylindrical grinding / internal cylindrical grinding
- 05
Assembly
- 06
Sales and original equipment supply
Materials & Processes
Carbide
Used for fixed centers (60° point) and center versions with high radial runout accuracy.
Steel
Material for centers, clamping chucks, jaws and steel flanges.
Locations
Oetwil am See
CHHeadquarters, production and sales
- Materials
- Steel, carbide
- Tripet internal grinding machine TST 120
- Kel-Vista universal cylindrical grinding machine
- Hermle C32 machining center
- Okuma LB3000EX lathe
- Studer CNC internal cylindrical grinding machine S131
- Studer CNC universal cylindrical grinding machine S31cnc
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Internal grindingMachining | – | – | – | – | Steel, Carbide |
| Universal cylindrical grindingMachining | – | – | – | – | Steel, Carbide |
| CNC internal cylindrical grindingMachining | – | – | – | – | Steel, Carbide |
| CNC universal cylindrical grindingMachining | – | – | – | – | Steel, Carbide |
| MillingMachining | – | – | – | – | – |
| TurningMachining | – | – | – | – | – |
| Cylindrical grindingMachining | Radial runout deviation max. 0.002 mm (special centers) | – | – | – | – |
| Hard turningMachining | – | – | – | – | – |
| Production of rotating centers (MK 1 to MK 7, metric tapers, cylindrical shanks)Assembly | max. radial runout deviation 0.002 mm (special centers) | – | – | – | Carbide, Steel |
| Production of fixed centers (carbide, 60° point, with/without ejector thread/-nut)Assembly | – | – | – | – | Carbide |
| Production of precision clamping chucks (rotating and stationary versions)Assembly | – | – | – | – | Steel |
| Custom manufacturing and customer-specific clamping solutions (accessories: air supply tubes,Engineering | – | – | – | – | Steel |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Internal grinding machine | Tripet TST 120 | 1 | – | 2004 | Oetwil am See |
| Universal cylindrical grinding machine | Kel-Vista | 1 | – | 2004 | Oetwil am See |
| Milling machine / machining center | Hermle C32 | 1 | – | 2014 | Oetwil am See |
| Lathe | Okuma LB3000EX | 1 | – | 2014 | Oetwil am See |
| CNC internal cylindrical grinding machine | Studer S131 | 1 | – | 2018 | Oetwil am See |
| CNC universal cylindrical grinding machine | Studer S31 CNC | 1 | – | 2018 | Oetwil am See |
Additional services
Reference customers
Quality
The processes are ISO 9001 certified (since 1997). Highest-precision special centers achieve a maximum radial runout deviation of 0.002 mm.
| Evidence | Oetwil am See |
|---|---|
| ISO 9001 |
History
- 1926
ROTOR center patented in Switzerland as the world's first live counter center (adjustable needle bearings, disc spring to protect the axial bearing).
- 1927
The Scherler family bought the ROTOR patent and founded a manufacturing operation; exports to England, France and Austria.
- 1941
After expiry of patent protection the Scherler siblings parted ways; Hans Scherler produced under the product name Favor.
- 1982
The company Holzegger AG, Rapperswil acquired all rights to the ROTOR products.
- 1992
Sole proprietorship D. Roider Precision Mechanics (established since 1974) acquired the ROTOR program.
- 1993
Presentation of the colored Eco-Line centers and a face driver program at EMO in Hannover.
- 1995
Founding of ROTOR TOOL GmbH by Monika and Daniel Roider; ROTOR became an original equipment supplier to various machine manufacturers.
- 1997
Certification to ISO 9001; revision of the Main-Line with maintenance-free standard bearings (MK 1 ST to MK 6 ST).
- 1999
Purchase and conversion of a larger industrial property in Oetwil am See.
- 2001
New products at EMO: center/hollow center inserts Type K, Type L with slim spindle, HP-Line with small head.
- 2004
Expansion of the machine fleet with an internal grinding machine Tripet TST 120 and a universal cylindrical grinding machine Kel-Vista.
- 2007
Takeover of the precision clamping chuck of the company Graber; production and sales in Oetwil.
- 2014
Expansion of the machine fleet: milling (Hermle C32) and turning (Okuma LB3000EX).
- 2016
Realignment of management: operational management by Marcel Britt with works manager David Roider.
- 2018
Expansion in the grinding sector: Studer CNC internal cylindrical grinding machine S131 and CNC universal cylindrical grinding machine S31cnc.