SCHUNK ROTA EP 380-127, Assembly And Operating Manual, Page: 19 / 73

02.00|0889073_ROTA TB-TBS-EP |en 19
ROTA EP
Size 380-127 460-165 460-185 500-260 460-165-
LH
460-185-
LH
Chuck Ø 380 460 460 500 460 460
Chuck through bore [mm] 127 165 185 26 165 185
Max. clamping force [kN] 160 230 230 80 230 220
Max. rotation speed
[min-1]
2300 1600 1600 1000 1600 1600
Stroke per jaw [mm] 7 7 7 15 19 19
Serration of the jaws
[mm]
3/32" x 90° 1/16" x
90°
3/32" x 90°
Distributor ring Ø [mm] 380 460 460 467 460 460
Centrifugal torque of
base jaw [kgm] M
cGB
0.432 0.622 0.640 0.343 0.787 0.816
Max. jaw eccentricity of
center of gravity in axial
direction [mm] a
max
36 32 36 40
The specified maximum speed of rotation stated only applies when
using the maximum clamping force and the SHB-type, hard,
standard stepped jaws that go with the chuck.
WARNING
Risk of personal injury and property damage due to parts flying
off in the event of a screw breakage on unhardened top jaws!
Soft standard top jaws must be hardened in the countersink
region.
They should only be depth-hardened, not surface-hardened.
If unhardened top jaws or chuck jaws in a special design are used,
ensure that the jaws weigh as little as possible. For soft top jaws or
chuck jaws in special design, the permissible speed of rotation
according to VDI 3106 must be calculated for the machining job in
question. The recommended maximum speed must not be
exceeded. The calculations must be checked using dynamic
measurement. Function monitoring (piston movement and
actuating pressure) must be performed in accordance with the
guidelines of the Berufsgenossenschaft (employers' mutual
insurance association).
Warranty and maximum clamping cycles
Duration of warranty 24 Months
Maximum clamping cycles 500 000