Category : Motion control, positioning stages > Micropositioning (components and systems)

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Newport’s AJS Series Adjustment Screws have precision rolled threads for exceptionally smooth adjustment and higher sensitivity than standard micrometers. They are ideal for use with Newport optical mounts, stages, and most micrometer-compatible components. With sub-micron sensitivity, they are a cost-effective alternative to micrometers where position readout is not required. In addition to many technical improvements, customers will also be able to take advantage of new reduced prices of the AJS screws as from April 1, 2004.
We've redesigned these adjustment screws adding a number of performance enhancing features. Our most popular screws have been upgraded to 100 TPI for even higher resolution. Engaging or disengaging our patented thread-pitch lock, now standard, won't influence the screw position. New knobs feature an integral hex hole for increased adjustment sensitivity.
High-precision 127, 100, or 20 TPI, rolled stainless steel threads are mated with an aluminum-bronze collet and proprietary lubricant for stictionless movement. The standard 9.5 mm diameter collet is threaded with a nut for mounting to optical mounts and stages. Our miniature series adjustment screws are ideal for OEM and custom mount applications. 20 TPI coarse adjustment screws are useful for quick travel adjustment where high resolution is not required.
Our patented thread-pitch lock secures the adjustment screw from turning by simply tightening a set screw. Versions with knobs have the lock screw on the side, while hex versions have the lock screw conveniently located on the end next to the drive screw. A single wrench is used for both adjustment and locking. Non-locking, 0.5 in. (12.7 mm) travel versions are also available for use in optical mounts.
We offer these screws in 6.35, 12.7, 25.4, and 50.8 mm travel, with a knob or with hex adjustment. KD.37 and KD.75 stainless steel knobs are available as an accessory for use with the hex versions.
For more information about this product, please contact your local Newport office or visit www.newport.com.

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