TOS SUA 125 NUMERIC, Operating Instructions Manual

Page: 61 / 118

SUA 125 NUMERIC
34200003 TOS a.s. 02/2011
61
5.2.9.1. Load of clamping centre in dependence on overhang
of tailstock sleeve
Diameter of tailstock sleeve is 165 mm.
Workpiece clamped between centres, centre angle 60

.
H [mm] F
ZH
[N] G
H
[kg]
0 60 000 6 000
50 53 000 5 600
100 47 000 5 100
150 41 000 4 700
200 35 000 4 250
250 29 000 3 800
300 23 000 3 400
350 16 000 3 000

Legend
Values in table:
H ……… Overhang of tailstock sleeve [mm]
F
ZH
……… Cutting force (tangential component [N]
G
H
……… Mass of workpiece [kg]

If the overhang of tailstock sleeve is increased then the centre rigidity is comprehensively reduced. (If can arrise the
limiting conditions during machining and the resulting accuracy can be influenced.)

The values introduced in the table are stated en steps (after 50 mm extension from tailstock sleeve).