Large Scale Rotary Surface Grinder for Glass Substrate NRG2000
- NanoTEM's diamond grinding wheel is porous structured and can pass water and air through itself.
- Surface morphology of the workpiece can be controlled by adjusting the distance between the workpiece and the diamond wheel.
- Flat and curved surface can be generated by attaching a cup wheel on the left spindle and a straight wheel on the right spindle.
- The workpiece will be fastened onto the chuck, after the chuck surface is self-sharpened. This enables high-precision processing.
NRG2000, precision diamond grinding wheel and large size porous chuck are the achievements of NanoTEM's next-generation grinding technology. We provide ideal processing solutions for flat panel display industries with increasing demands of large size displays.
Diamond grains are harder than the bond matrix, therefore when a material is pressed against the wheel, the matrix wears faster making the diamond protrude approximately 10 micron (depending on the size of the diamond grain). This enables the diamond to constantly work on the material throughout the grinding process.
Patterning of diamonds provides high penetrating force towards the workpiece resulting to high removal rate.
Diamond Grinding Wheel
NanoTEM's diamond grinding wheel has a porosity of more than 40vol%. Surface morphology of the workpiece can be managed by supplying water and air through the diamond wheel. This minimizes damage to the workpiece, shortens the time required at the next processing and provides high-precision machining.
Porous Ceramic Vacuum Chuck Table
Porous chuck passes water and air to its surface, and when loading a glass substrate, the chuck will be able to receive the glass gently on its surface.
Specifications [NRG2000]
| Porous chuck | Cup wheel (left) |
Straight wheel (right) |
|
|---|---|---|---|
| Max Dimensions | 1400x1600x40t | φ450 | φ400 |
| Max Revs (rpm) |
50 | 2000 | 2000 |
| Rotating Mechanism | Motor +Cross-roller |
Motor +Angular-bearing |
Motor +Angular-bearing |
| Continuous Motor Output (kW) |
7.5 | 7.5 | 3.7 |
| Motor Output 30 minutes Rating (kW) |
11 | 11 | 5.5 |
| X-axis Stroke (mm) |
- | 1200 | 1200 |
| X-axis Feed Speed Max (mm/min) |
- | 5000 | 5000 |
| Z-axis Stroke (mm) |
- | 550 | 550 |
| Water Outlet Mechanism | available | available | available |
| Vacuum Mechanism | available | available | available |
| AIR Out Mechanism | available | available | available |
| Max Size of Grinding Diameter (mm) |
- | 2300 | 2400 |
| X-axis Feed Resolution (μm) |
- | 0.1 | 0.1 |
| Z-axis Feed Resolution (μm) |
- | 0.1 (With linear scale) |
0.1 (With linear scale) |
| Weight | 21,000kg | ||
| Control Method | FUNAC 18i MODEL BT series | ||
| Coolant Tank | Capacity 190litre | ||
| Notes | Work weight 3ton (20rpm) | - | - |
*Specifications can be changed through consultation.
Applications
●Synthetic quartz glass for photomasks
●Mother glass for liquid crystal display up to G6 class
●Soda-lime glass（blue plate）