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| 271/281 Series High Load Lab Jacks |
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 (left to right) 271 and 281
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- Unique orthogonal hinges minimize wobble, tilt, and twist
- 3-mrad parallelism
- High load capacity without creep
- Smooth elevation of up to 300 lb (1334 N) loads
- English and metric compatible
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Product DescriptionProduct DetailSpecificationsDrawingsCatalog PDF3-D Model |
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Model 271 and 281 Lab Jacks are uniquely designed to provide smooth, stable height adjustment and high load capacity.
Conventional scissors and dual-pantograph jacks lift by decreasing the distance between crossed members and are inherently less stable at higher elevations. In contrast, Newport’s innovative design employs three orthogonal hinges that straighten to form a box, becoming more stable with increasing height. The side mounted height adjustment controls a stout drive screw connecting the pivot pins of the broad side hinges. The end hinge prevents tilting or swaying and ensures only vertical motion.
The 271 and 281 Lab Jacks are both English and Metric compatible. The top plate has an array of 1/4-20 tapped holes on 1 in. centers while the bottom plate has an array of M6 holes on 25 mm centers. Both the top and bottom plates have four clearance slots used for mounting the Lab Jack to the optical table. |
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