The latest PowerRod linear motor system, from Parker Hannifin, is playing a vital role in a series of test machines for a new generation of spacer dampers designed for use on overhead power transmission lines. Developed and produced by UK-based systems house, Computer Controlled Solutions Ltd (CCS), for Tyco Electronics UK Ltd, the test machines use the PowerRod motors and Compax 3 servo drive to replace conventional motor and cam mechanisms, helping to minimise setup time and provide high levels of reliability during tests of twenty million cycles, equivalent to around 5,000 km of travel.