Chuck bungs are primarily used to block the centre of the chuck to stop swarf and coolant going down the spindle. The threaded hole which can be used for the removal of the bung can also be used for mounting a back stop.
SIGMA
08543
CNC SELCA S4060 DDM
TABLE:
Table surface mm 2300x730
Max table load Kg 2500
Continuous rotary table (axis C) diam. mm 660, built-in with fixed table
Max rotary table load Kg 1000
STROKES:
Axis X mm 2000
Axis Y mm 700
Axis Z mm 950
TILTING...
LODI
07750
Max longitudinal table stroke mm 1200
Min longitudinal table stroke mm 150
Max cross table stroke mm 450
Grinding length mm 1000
Grinding width mm 450
Working table mm 1000x450
Distance between table and spindle axis mm 700
Wheel size mm 4...
IMM
New03744
Morse C.M. n.2
Spindle travel mm 60
Headstock vertical deplacement mm 240
Spindle speed number n.3
Spindle speed range rpm 230-530-1100
Column diameter mm 90
Max distance spindle to table mm 785
Min distance spindle to table mm 190
Dista...