Heavy duty linear actuators

These are well into the performance realm of screw jacks so design engineers have the choice from the two technologies. Actuators are likely to be preferred for pivoting mountings, for dirty environments as there is no exposed screw thread, and where built in stroke limit switches are needed. Also linear actuators have ball screw versions readily available that suit high duty cycles, and generally linear speeds can be higher.

The ATL/BSA range of linear actuators has been extended with two new models with rated forces of 200kN and 350kN. Linear speeds range from 9 to 140mm/s and typical motors are AC 7.5kW and 15kW.