Optical Comparator Stages

Ultra Precision Coordinate Staging

These coordinate stages can be used for optical comparators, vision systems or microscopes. Dorsey offers fully motorized or manual comparator stages. These stages allow adjusting the position of inspected part. Inspected elements mounted on stage are resistant to external vibration providing more accurate results.

Optical comparator static fixture plateOptical comparator motorized 8x4 stage
Optical comparator stages, from left: static fixture plate, part # SFP and motorized 8x4 stage, part # 8X4MT.

Features:

  • High precision solid rail crossed roller bearings
  • Hard nickel plated surfaces
  • Fixturing holes with universal spacing
  • Quick release on both axes of all manual stages
  • Static axis bias on stage drives increases accuracy
  • Universal mounting options fit many existing systems
  • Choice of scale resolutions
  • Motorized versions available with stepper or servo motors
  • Motorized versions available with slip clutches or limit switches
  • Accuracy formula +/- .004 +[(L/20).001]
  • NIST traceable calibration certificate
  • 2 Year Warranty
Technical Specification
Part #Stage TravelWeight CapacityFrame SizeGlass InsertScale Resolution
Note: Replace X in part # with T for motorized stage, or N for manual stage.
SFPN/A75 lbs11" x 7.4"7" x 4.5"N/A
8X4MX8" x 4"125 lbs15" x 10.5"11" x 7"0.002mm, 0.001mm, (150mm x 100mm)
12X4MX12" x 4"65 lbs16.5" x 10.5"13.5" x 4.5"0.002mm, 0.001mm, (300mm x 100mm)
16X6MX12" x 6"65 lbs16.5" x 7.4"13.5" x 4.5"0.002mm, 0.001mm, (300mm x 100mm)
8X8MX8" x 8"125 lbs15" x 15"10.5" x 10.5"0.002mm, 0.001mm, (200mm x 200mm)
16X8MX16" x 8"125 lbs23" x 15"18.5" x 10.5"0.002mm, 0.001mm, (400mm x 200mm)

 

Optical comparator manual 6x4 stageOptical comparator manual 16x8 stage
Manual stages, from left: 6X4 optical comparator stage and 16X8 stage.

How to order a stage?

Please follow the instructions in the table below for proper part numbers when ordering a stage.

Stage Ordering Information
Part #Description
SFPStatic Fixture Plate
8X4MNManual drive with 8" x 4" travel
8X4MTMotorized drive with 8" x 4" travel
8X4MN-05Manual drive with 8" x 4" travel and 0.5µm/.00003" scales
8X4MT-05Motorized drive with 8" x 4" travel and 0.5µm/.00003" scales
8X8MNManual drive with 8" x 8" travel
8X8MTMotorized drive with 8" x 8" travel
8X8MN-05Manual drive with 8" x 8" travel and 0.5µm/.00003" scales
8X8MT-05Motorized drive with 8" x 8" travel and 0.5µm/.00003" scales
12X4MNManual drive with 12" x 4" travel
12X4MTMotorized drive with 12" x 4" travel
12X4MN-05Manual drive with 12" x 4" travel and 0.5µm/.00003" scales
12X4MT-05Motorized drive with 12" x 4" travel and 0.5µm/.00003" scales
12X6MNManual drive with 12" x 6" travel
12X6MTMotorized drive with 12" x 6" travel
12X6MN-05Manual drive with 12" x 6" travel and 0.5µm/.00003" scales
12X6MT-05Motorized drive with 12" x 6" travel and 0.5µm/.00003" scales
16X8MNManual drive with 16" x 8" travel
16X8MTMotorized drive with 16" x 8" travel
16X8MN-05Manual drive with 16" x 8" travel and 0.5µm/.00003" scales
16X8MT-05Motorized drive with 16" x 8" travel and 0.5µm/.00003" scales

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