Astra Scientific Tool and Cutter Grinding Machine

Construction:
Wheel Head: It is of rigid construction and holds the spindle assembly. It can be fitted horizontally and swiveled vertically full 360 degree, for quick setting of compound angles. Wheel head is mounted on the rigid column, which can be raised/lowered up/down. Wheel head also can be adjusted 150 mm on cross direction.
Wheel Head Spindle:
Alloy steel hardened and ground spindle is mounted on precision preloaded radial ball bearings, which are greased packed. The grinding wheels can be mounted on both sides of the spindle and the wheels mount design is such that the spindle can be reversed.
Work Table:
This is mounted on the carriage and can be swiveled 45 degrees on either side of the column. This table has a smoother and rapid movement longitudinally on the carriage through a roller chain guided and supported in jibs. Slow movement is through a reduction gearbox. Change over from rapid to slow movement is through a push/pull knob. The precise movement on roller chain enables smooth, sensitive and accurate longitudinal movement even with heavy jobs. The adjustable reversing dogs on the work table are spring loaded for shockproof reversal of table.
Auxiliary Table:
This table is mounted on work table and in both horizontal and vertical planes. It can hold job up to 600 mm with the aid of raising blocks. It's spindle nose has ISO 50/MT 5 tapers and the spindle is mounted to taper roller bearings.
Max. swing on std. center    mm    250    250    280
Swing with raising blocks    mm    350    350    380
Length between work head and RH tail stock    mm    330    520    610
Admit between centers    mm    440    670    760
Max. Height center of wheel above table    mm    300    300    380
Longitudinal traverse    mm    400    480    510
Cross traverse    mm    200    250    250
Swivel either side of centre(End scale)    deg.    -    9    9
Swivel LH/RH of column (Center scale)    deg.    45°/45°    45°/45°    45°/45°
Size of table    mm    750 x 115    920 x 140    1010 x 140
Vertical adjustment of wheel head    mm    210    210    290
Wheel Head Swivel    deg.    3600    3600    3600
Tilting in either direction    deg.    180 ±    180 ±    180 ±
Spindle speed    rpm    3800/5600    3800/5600    3800/5600
Motor power    KW/HP    0.75/1    0.75/1    0.75/1
Net weight of the machine    kg.    750    1150    1250
Gross weight of the machine    kg.    900    1350    1450
Dimension of Machine (L x W x H)    mm    1075 x 1100 x 1400    1325 x 1170 x 1460    1325 x 1170 x 1460