The MPPL provides internally-guided linear motion of the vacuum shaft, guaranteeing rotation-free motion. Importantly, the high axial thrust coupling produces no torque. That means when the thimble rotates externally, it doesn’t apply a rotational force internally. Consequently, this functionality will always ensure the smoothest motion. The range can be actuated manually, pneumatically or motorised with DC or stepper motors. Additionally, switches can be provided to prevent over-travel and to aid system interlocks.
Utilising UHV Design’s magnetic coupling technology, this device removes the need for edge-welded bellows ‘stacks’ - usually incorporated within traditional push-pull designs. Crucially, their elimination maximises vacuum integrity, providing a robust, cost-effective solution. Unlike a bellows-sealed device, the MPPL offers the additional advantage of not being subject to thrust due to vacuum. This results in a smooth free-moving, user-friendly operation.
If you would like to discuss your project with our engineering team, please contact us.