SCHUNK ROTA NC plus 2 Series User Manual

Technical data
22
02.00|ROTA NC plus 2 / ROTA NCF plus 2 |en
Calculation of the required clamping force in case of a given rpm
The initial clamping force F
sp0
is the total force impacting radially
on the workpiece via the jaws due to actuation of the lathe chuck
during shutdown. Under the influence of rotation, the jaw mass
generates an additional centrifugal force. The centrifugal force
reduces or increases the initial clamping force depending on
whether gripping is from the outside inwards or from the inside
outwards.
The sum of the initial clamping force F
sp0
and the total centrifugal
force F
c
is the effective clamping force F
sp
.
(–) for gripping from the outside inwards
(+) for gripping from the inside outwards
DANGER
Risk to life and limb of the operating personnel and significant
property damage when the RPM limit is exceeded! With
gripping from the outside inwards, and with increasing RPM, the
effective clamping force is reduced by the magnitude of the
increasing centrifugal force (the forces are opposed). When the
RPM limit is exceeded, the clamping force drops below the
required minimum clamping force F
spmin
. Consequently, the
workpiece is released spontaneously.
• Do not exceed the calculated RPM.
• Do not fall below the necessary minimum clamping force.
Reduction in effective clamping force by the magnitude of the total centrifugal force, for gripping from the outside inwards.
6.3.1

SCHUNK ROTA NC plus 2 Series Specifications

General

Brand	SCHUNK
Model	ROTA NC plus 2 Series
Category	Industrial Equipment
Language	English