Four Screw System
05 November 2012
When a European car manufacturer wanted to stage a spectacular UK launch for a new model, Power Jacks engineers had just three weeks to devise and deliver a custom-built system for a showcase that would tour major shopping centres up and down the country.
The team created an innovative solution centred upon Power Jacks’ C-Series cubic machine screw jack. The Power Jacks system was pivotal to a dramatic ‘magic mirror’ effect that slowly unveiled the car. To keep the operation simple yet effective, Power Jacks engineers opted to use a four screw jack system in an H- configuration – the type commonly used to lift a single platform in one direction.
To move two platforms in opposite directions, at the same time and rate Power Jacks designed a special lead screw which had right hand and left hand threads on the same lead screw, built into the screw jack body. The screw length matched the height of the installation: the upper half had a right hand thread form and the lower half had a left hand thread form.
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