Sometimes a port on the vacuum chamber just doesn’t quite point where it should. The MPA’ port aligner solves this with two UHV flanges connected by a short section of welded bellows and a sturdy clamping mechanism. The bellows allows the flanges to tilt ± 1 degrees, total. This makes for easy alignment of long devices like magnetic introduction and sample transfer rods. An arc of 2 degrees subtends a chordal distance of more than 25mm (1”) at a distance of 750mm (30”), giving lots of adjustment range.