IAI America LSA-W21SS - Manual (Page 28)

14
9. Precautions for Use
9.1 Actuator Load
Make sure the load specified in the “Specifications” section is not exceeded. In particular, pay attention to
the moment applied to the slider, allowable overhang length, and load.
 Allowable load moment
Unit: N m (kgfm)
Ma Mb Mc
LSA-W21SS, LSA-W21SM 128.7 (13.1) 128.7 (13.1) 128.7 (13.1)
LSA-W21HS, LSA-W21HM 275.2 (28.1) 275.2 (28.1) 275.2 (28.1)
 Allowable overhang length
Unit: mm
Ma Mb Mc
LSA-W21SS, LSA-W21SM 500 mm or less 500 mm or less 500 mm or less
LSA-W21HS, LSA-W21HM 750 mm or less 750 mm or less 750 mm or less
* The above overhang length assumes that the center of gravity of the load is located at a point
corresponding to one-half the overhang length.
Caution: If an excessive load moment is applied, the guide will reach its life prematurely or
other undesirable effects will result. Using the actuator in a configuration where
the overhang length exceeds the allowable value may also increase vibration or
reduce the service life of the guide.
Moment directions
Allowable overhang directions
Mb or Mc direction Ma direction
Mc
Mb
Ma