BONELI is developing the new BONELI SMART 20 centerless grinder. The machine will have the exact same concept of the SMART 10, however with maximum wheel width of 508 mm (20 inches). All the technological innovations introduced in the SMART 10 (use of spindles, new dressing concept, new software) will also be used in the SMART 20. The SMART 20 will be dedicated especially for thrufeed grinding where it is demanded, beyond precision, extremely high productivity. The launching of the new machine will be during the first months of 2008. Find below the main characteristics of the new BONELI SMART 20: |
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| CAPACITY |
| Grinding diameter range |
1 to 250 mm (1/16” to 10”) |
| Maximum infeed grinding length |
500 mm (20”) |
| Floor space |
3.800 x 2.140 mm (13’ x 7’) |
| Total approximate weight |
15.000 kgs (33.000 pounds) |
| WHEEL DIMENSIONS |
| Grinding wheel – OD, width, ID |
609,6 x 508 x 304,8 mm (24” x 20” x 12”) |
| Regulating wheel – OD, width, ID |
355,6 x 504 x 203,2 mm (14” x 20” x 8”) |
| SPEEDS |
| Grinding wheel (constant peripheral speed) |
up to 120 m/sec (23500 sfpm) |
| Regulating wheel |
0 to 1000 RPM |
| POWER |
| Grinding wheel spindle |
60 kW |
| Regulating wheel spindle |
15 kW |
| SERVO-MOTORS |
| Grinding wheel dressing servo-motor |
INDRAMAT 2,4 Nm |
| Regulating wheel dressing servo-motor |
INDRAMAT 2,4 Nm |
| Grinding wheel headstock motor |
INDRAMAT 8 Nm |
| Regulating wheel headstock motor |
INDRAMAT 8 Nm |
| GUARANTEED PRODUCTIVITY |
| Throughfeed grinding |
1 to 60 m/minute (40 to 2.400”/minute) |
| Infeed grinding |
220 pieces/hour |
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