Materials and manufacturing innovation have made tremendous
changes in the cost, performance and endurance of actuators
and motors loosely termed ‘electrodynamic’.
The impact of the innovation relegated servo hydraulic
test machines to their proper applications – a diminishing
part of the market — e.g. high force test applications
where loads were greater than 20000 lb (90 kN).
Electrodynamic innovations have continued to flourish
including increased load capacities, long life, friction
free, maintenance free and green power efficiencies that
double their value over servo hydraulics. TestResources
now has systems in the field with billions of cycles on
them. Also TestResources systems are now available with
load capacities in excess of 11,250 lb (50 kN).