Actuator Makes Huge Structure Move

Actuator Makes Huge Structure Move The biggest animotronic structure of its kind ever built has been created with the help of Acorn Industrial Services and its linear specialist, Simon Gillingham. The 8m-high animated replica of a famous American footballer was unveiled in Trafalgar Square ten weeks after construction began. Weighing over a tonne, the animatronic's moving limbs posed a real problem for the designers. Originally hydraulics were considered, but the additional ancillary equipment needed to operate the system would have created additional concerns.Artem looked at using electric actuators, which offered a much simpler solution. Acorn Industrial Services was approached and Simon Gillingham of its Linear division was asked if he could help Artem.Gillingham had to specify an actuator which would be powerful enough to move the giant's massive limbs and which could effectively mimic human movement in terms of speed and smoothness. A joint meeting was held with Artem's design team, SKF linear motion and Acorn Industrial Services and all concerns were identified and a solution proposed.A linear actuator from SKF's range provided the performance and dimensions required for the animated man. The huge replica needed over fifteen actuators for it to move its giant head, arms, legs and feet in a life-like motion.A key factor in the supply of the actuators was the lead time. The animatronic had to be ready prior to the game between Miami Dolphins and the New York Giants at the Wembley stadium on 28th October 2007, so delivery was critical.The actuators were needed within two weeks of ordering.