Machining example
■ Precision surface grinding of large-size discs
Machining of ultra-large size discs up to φ1,800mm is possible.
■ Multi-parts simultaneous surface grinding
Multi-parts grinding is possible in the same process to allow mass production of accurate parts.
■ Lapping-free mirror surface machining
Lapping-free ultra-mirror surface machining of not only the top surface but also the external and internal surfaces is possible.
■ Rotary cutting with cutting tool
Super-precision cutting of roll forming dies is possible by replacing the grinding wheel with a cutting tool.
Features
1. Hydrostatic rotary table for accurate and efficient surface machining
The rotary table guideway employs a Nagase original hydrostatic mechanism to restrict table top surface deflection to the submicron during table rotation. In addition, the height of the table travel line does not change even when the table rotation speed changes so that high flatness is achieved.
2. Higher grade machining quality by grinding wheel spindle incorporating an ultra-low vibration motor
The Nagase original ultra-low vibration motor (rotational vibration below 0.05μm) is employed in the grinding wheel spindle as a drive motor. This motor excels in high rotation accuracy (optional) and vibration damping for either a hydrostatic or dynamic table, thus enabling higher grade mirror surface grinding.
3. Finishing of workpiece ID and OD is possible.
Not only surface parallel grinding but also ID/OD grinding is possible by using a vertical head. By replacing the grinding wheel with a cutting tool, cutting of the workpiece inside and outside is also possible.
4. Dresser to ease cutting of hard-to-cut materials
Incorporating both the single stone dressing and double-cup truer enables efficient grinding of hard-to-cut materials such as carbide and ceramics.
5. Micro infeed operation is also possible.
The NC unit is compliant to chase grinding at the machining surface reference so that effective grinding of hard-to-cut materials and ultra-hard steel materials is possible using a soft grinding wheel. Software for step grinding, etc. also enables grinding with less altered layer of the machined workpiece.
Options
■ Dresser
Automatic dressing is possible by attaching a single stone dresser or double cup truer.
■ on-the-machine measurement unit
Automatic measurement of workpiece height is possible. Chase machining does not require troublesome setup changes.
■ Internal/external grinding with vertical head
By attaching a vertical grinding head, grinding of both the inside and outside of round workpieces becomes possible.
■ Super-precision machining with cutting tool
By using a tool holder, super-precision cutting becomes possible.
Series
■ RG-500SLD2-N2: For table area of Φ500mm
■ RG-2000S4-N: For table area of Φ1.8m
Specifications
| Model/item | Size | Chucking size | Table movement amount | Table top surface Spindle center |
Table feed min. unit | Min. unit in vertical direction | Grinding wheel size (OD x W x ID) |
|---|---|---|---|---|---|---|---|
| mm | mm | mm | mm | mm | mm | ||
| RG | 500 | Φ500 | 300 | 675 | 0.0001 | 0.0001 | Φ200〜355×25〜38×Φ127 |
| 600 | Φ600 | 497 | 538 | 0.0001 | 0.0001 | Φ200〜355×25〜38×Φ127 | |
| 700 | Φ600 | 497 | 538 | 0.0001 | 0.0001 | Φ200〜355×25〜38×Φ127 | |
| 800 | Φ800 | 497 | 538 | 0.0001 | 0.0001 | Φ200〜355×25〜38×Φ127 | |
| 2000 | Φ1800 | 1400 | 890 | 0.0001 | 0.0001 | Φ680×10×Φ127 |
■ Contents and specifications are subject to change without prior notice. The contents of description and pictures may contain optional items. To place an order, check the manufacture specifications for detailed contents.
■ Actual machine accuracy and machining accuracy described on this site may differ depending on the measurement and machining conditions.
■ For further details, you may request specifications, technical information, etc.
■ For resale or export of the product, contact us in advance. Exporting products requires designated procedures as determined by the Foreign Exchange and Foreign Trade Control Law.
■ This product must not be transferred for any purposes of use that prevents international peace and security, or used for one’s own purpose or by any third party.
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Inquiries
Customers who are thinking of introducing new facilities are welcome to ask us for test machining or to visit our factory. Please feel free to consult us. Inform us of your facility conditions, size and material of machining workpieces, machining time, etc., in details.
Sales personnel in your district will make a proposal designed to meet your requirements.
