| TECHNICAL SPECIFICATION |
| Make |
SI |
| Model |
SI-VMM-750 |
| Construction |
Knee Type |
| Capacity |
| Longitudinal movement |
750 mm |
| (Manual and automatic) |
| Transverse movement |
230 mm |
| (Manual and automatic) |
| Vertical movement |
400 mm |
| Maximum loading capacity |
350 kg |
| Spindle |
| Speed range |
50 to 1600 rpm |
| Vertical quill movement |
70 mm |
| Swivel of milling head to either side |
45° |
| Distance from lower surface of milling spindle to top surface of table |
70 mm to 500 mm |
| Distance from spindle center to column face |
350 mm |
| Spindle taper |
ISO 40 |
| Feed Range |
| Number of feeds |
16 |
| Longitudinal |
30 to 800 mm |
| Transverse |
30 to 800 mm |
| Vertical |
20 to 200 mm |
| Power |
| Main motor |
5 HP |
| Feed motor |
1 HP |
| Machine geometric accuracies as per IS standard |
| Straightness of the vertical movement of the knee |
0.020 mm for any measuring length of 300 mm |
| Squareness between the transverse cross slide movement (Y-axis) and the longitudinal table movement (X-axis). |
0.020 mm for any measuring length of 300 mm |
| Angular deviation of the table in its longitudinal movement |
0.040mm /1000mm travel |
| Flatness of the table surface |
0.020 mm for any measuring length of 300 mm |
| Parallelism between the table surface and table movement (longitudinal and transverse) |
0.025 mm for any measuring length of 300 mm |
| Squareness between the table surface and the vertical movement of the knee |
0.025 mm for any measuring length of 300 mm |
| Squareness between the table surface and the vertical movement of the spindle head slide |
0.025 mm for any measuring length of 300 mm |
| Run-out of external centering surface on the spindle nose and internal taper surface on the spindle nose (at the spindle nose) |
0.01 mm |
| Squareness between the spindle axis and table surface |
0.025 mm for any measuring length of 300 mm |
| Standard Accessories |
| •Horizontal indexing head - 1 No. |
| •Universal Dividing Head with simple, differential and compound dividing |
| •Swivel base machine vice 160 mm width - 1 No. |
| •Reduction milling sockets - MT1, MT2, MT3, MT4 |
| •Machine lamp |
| •Coolant system |
| •Climb milling attachment |
| •Clamping kit consisting of T coupling, Flange nuts, Step clamps and Blocks |
| •Collets for size range - 3 mm to 20 mm with necessary collet chucks (5 Nos. to accommodate different size ranges) |
| •One milling arbor and one stub arbor |
| •Drill chuck |
| Safety features |
| •Electromagnetic clutches for brakes for instantaneous stopping. |
| •Overload relays for motor |
|
| Cutting tools and tool holders |
|
| •Sandvik make carbide tip (insert) type milling cutters in the diameter ranges - 50, 100 mm - 2 Nos. in each range. |
| •Holder for the above milling cutters. |
| •Inserts for the above milling cutters - 10 Nos. for each cutter. |
| •HSS End mills - 10 mm, 12 mm, 15 mm with suitable holders. |
