UNI-TECH electric automatic Small Surface Grinding Machine
3-axis manual operation
High rigidity H-frame column with spindle center to table
Enhanced ribbed full cast iron base
Enlarged spindle housing for heavier grinding
Cartridge w / 4 preloaded class 7 (P4) bearing
Roller steel balls on linear table ways for easy and smooth longitudinal movements.
Double-V saddle ways for rigidity
1 Adopt the exceeding precise class7(P4 level) ball bearing for spindle
2 Bring transmission by synchronous belt, operating simple and convenient
Grinding Machine/Grinder (M618a)
Hydraulic longitudinal, power corss and vertical hand infeeds operation.
All 3 axises are roller bearing slides
Hardened & ground ways (removable) on table, carriage / saddle & column
Cartridge spindle W/ 4 preloaded class 7 (P4) bearing for better workpiece accuracy.
Table, saddle & column move on linear table ways MID-level downfeed handfeel placement for convenient and easy position for Z-axis.
Model |
MD618A |
MD820 |
MD1022 |
Working table |
Table Size (L× W) |
mm |
460×180 |
480×200 |
540×250 |
Max movement of working table(L× W) |
mm |
500×190 |
530×220 |
560×260 |
T -Slot number×width |
mm |
1×14 |
1×14 |
1×14 |
Grinding head |
Max distance from spindle center to table surface |
mm |
335 |
440 |
420 |
Wheel Size(Outer diameter×width×Inner diameter) |
mm |
φ180×13×Φ31.75 |
φ200×20×Φ31.75 |
φ200×20×Φ31.75 |
Wheel speed |
50HZ |
r/min |
2850 |
2850 |
2850 |
|
|
60HZ |
|
3440 |
3440 |
3360 |
Feed amount |
Longitudinal speed of working table |
m/min |
3-20 |
3-20 |
3-20 |
Cross feed of working table |
Continuously(Variable Transmission) |
mm/min |
300 |
300 |
400 |
Intermittently(Variable Transmission) |
mm/times |
0-5 |
0-5 |
0-5 |
Per revolution on handwheel |
mm |
2.5 |
2.5 |
4 |
Per graduation on handwheel |
mm |
0.02 |
0.02 |
0.02 |
Vertical feed on handwheel |
Per revolution |
mm |
1.25 |
1.25 |
1.25 |
Per graduation |
mm |
0.01 |
0.01 |
0.01 |
Commutation feeder |
Total input power |
w |
150 |
150 |
150 |
X- feeder output speed |
R/min |
0-225 |
0-225 |
0-225 |
X- feeder size |
mm |
280×130×120 |
280×130×120 |
280×130×120 |
Y- feeder output speed |
R/min |
0-120 |
0-120 |
0-120 |
Y- feeder size |
mm |
280×130×120 |
280×130×120 |
280×130×120 |
Motor power |
Spindle motor |
kw |
1.1 |
1.1 |
1.5 |
Coolant pump motor |
w |
40 |
40 |
40 |
Working precision |
The parallelism of working surface to base level |
mm |
00:00.0 |
00:00.0 |
00:00.0 |
Surface roughness |
μm |
Ra0.32 |
Ra0.32 |
Ra0.32 |
Weight |
Net |
kg |
667 |
767 |
880 |
Gross |
kg |
767 |
867 |
980 |
Overall dimension(L×W×H) |
mm |
1550x1150x1590 |
1680x1140x1760 |
1680x1140x1760 |
Package dimension(L×W×H) |
mm |
1000x1150x1760 |
1140x1250x1940 |
1200x1400x1940 |