Mirror surface grinder
Specially designed for the high-tech industry, ultra precision surface grinding machines. zero point one μ Submicron precision grinding with a grinding reserve of 2 μ Below 0.1 microns μ Feed amount.
Specially designed for the high-tech industry, ultra precision surface grinding machines. zero point one μ Submicron precision grinding with a grinding reserve of 2 μ Below 0.1 microns μ Feed amount.
Main feature /
■ Accuracy
Table surface guaranty(Testing grinding piece*6, thickness difference) : 2μ.
Downfeed(minimum unit) : 0.1μ
■ Spindle & motor
Vertical driven by AC servo motor.
2HP V3 grade low virbration spindle motor.
Direct drive spindle, ABEC Class 7 (P4) bearings, 0.003m/m TIR.
3 angular contact ball bearings at front, 2 angular contact ball bearings at rear side of spindle.
■ Cross and Longitudinal(618TS)
Cross feed driven by simplified AC servo motor, it's more precise when intermittent feed.
Longitudinal by advanced table hydraulic design, feed range from 0.3m/min to 25m/min, it provides easy operation and vibration-free reversing motion and controlled by the proximity sensor built-in design for safety.
■ Cross and Longitudinal(618H)
Cross feed driven by ball screw (618H).
Longitudinal driven by hydraulic (618H).
■ Base & slide ways
Enlarged structure dimension, superior stability and rigidity.
Cross double V and longitudinal V& flat, and TURCITE B coated with hand scraped, 3 axes are box ways.
One-piece casting base and slide way.
All main castings are made of "Meehanite GC275" and have been annealed stress for long lasting and accuracy.
Technical data
| DESCRIPTION\MODEL | UNIT | NSG-618TS | NSG-618 | NSG-618H | NSG-618AH | |
| CAPACITY | Maximum distance from table top to spindle center line | mm | 370 | 370 | 370 | 370 |
| Table surface (L x W) | mm | 470x150 | 485 x150 | 470x150 | ||
| Maximum longitudinal travel | mm | 560 | 490 | 560 | ||
| Maximum cross travel | mm | 210 | 210 | 210 | ||
| T-slot (No. x W) | No.mm | 17 | 17 | 17 | 17 | |
| FEED | Longitudinal movement of table (X axis) | |||||
| Hydraulic feed | m/min | 0.3-25 | - | 0.3-25 | ||
| Handwheel per revolution | mm | 70.6 | - | 70.6 | ||
| Cross movement of saddle (Z axis) | ||||||
| Intermittent feed | mm | 0.15-10 | - | - | 0.15-10 | |
| Continuous traverse feed | mm/min | 1200 | - | - | 1200 | |
| Handweed per revolution | mm | 5 | - | 5 | ||
| Handwheel per graduation | mm | 0.02 | - | 0.02 | ||
| Vertical movement of wheel head (Y axis) | ||||||
| MPG handwheel per revolution | μm | 0.1/1/2 | - | 0.01/0.1/3 | ||
| MPG handwheel per graduation | μm | 0.0001/0.001 /0.02 | 0.0001/0.001/0.03 | |||
| Rapid/Slow vertical feed. | mm/min | 230/29 | - | 600 | ||
| Vertical automatic down feed | ||||||
| Feed per time (rought/fine) | mm | 0.0001~0.0999 | - | |||
| Total stock removal | mm | 0.0001~99.9999 | - | |||
| Total fine feed stock removal | mm | 0.0001~99.9999 | - | - | ||
| Spark-out | times | 0-9 | - | - | ||
| SPINDLE&WHEEL | Spindle motor | HP | 2 | - | 2 | |
| Spindle speed (50/60HZ) | rpm | 3000/3600 | - | 3000/3600 | ||
| Grinding wheel OD x B | mm | Ф205/Ф180xФ31.75 | - | Ф205/Ф180xФ31.75 | ||
| MOTOR | Hydraulic motor | KW/P | 2 | - | 2 | |
| Cross feed | W | 90 | - | - | 90 | |
| Vertical feed (AC servo motor) | W | 400 | - | 400 | ||
| Lubrication pump | HP | 0.02 | - | 0.02 | ||
| DIMENSION&WEIGHT | Floor space(Lx Wx H) | mm | 2500x2100x2040 | 1880x1700x2050 | 2500x2100x2040 | |
| Packing dimension (L x W x H) | mm | |||||
| Machine weight (Approx.) | kg | 1350 | 1200 | 1350 | ||
Remark：We reserve the right to modify the specification relating to any of the above machines without notice.