VB300 Vertical Bench Top Optical Comparator 34478

Vertical Bench Top Optical Comparator

The VB300 vertical bench-top optical comparator offers high performance at a low price. Designed to meet the demands of modern industry, the VB300 is ideal for the rapid inspection of small light weight components, pressings, plastic moldings, electronic components, small turned parts, etc. Starrett optical comparators combine mechanical stability with precision optics and versatile lighting to produce bright, sharp images and exceptional accuracy. The vertically positioned VB300 Optical Comparator models are available with a choice of digital readouts or touchscreen PCs, measuring software options, manual workstage travel, projection lens magnifications from 10x to 50x, and optional Edge Detection capability. Our proven mechanical designs are now enhanced with the latest metrology software for unmatched flexibility and productivity.

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  • Available with a simple integrated LED readout display (as shown) or choice of the new MetLogixGäó or Quadra-Chek-« geometric readout systems
  • Measuring travel: 4" (100mm) X-axis, 4" (100mm) Y-axis
  • Fast traverse, quick release mechanism on X-axis and Y-axis
  • High precision workstage with 9 x 9" (225 x 225mm) top plate, with two dove-tail slots for easy fixturing
  • Stage weight capacity: 11lbs (5kg) (evenly distributed)
  • LED profile lighting and LED surface illumination are standard
  • Exceptionally stable, all metal construction for optimum performance, accuracy, and reliability
  • 10x, 20x, 25x, and 50x magnification lenses available
  • Screen driven Q-axis
  • Power supply 110/120/230/240/250V AC 50/60Hz


  • Made in America: No
  • System Type: Bench Top
  • Part View Orientation: Vertical
  • Screen Diameter (in): 12"
  • Screen Diameter (mm): 300
  • X - Y Measuring Range (in): 4" x 4"
  • X - Y Measuring Range (mm): 100 x 100
  • Linear Glass Scale Encoder on X & Y Axis: Standard
  • Focus Range (in): 4"
  • Focus Range (mm): 90
  • Work Stage (in): 9" x 9"
  • Work Stage (mm): 225 x 225
  • Load Capacity with Negligible Deflection (lbs): 11
  • Load Capacity Maximum (lbs): 20
  • Angular Measurement Resolution: 1 Minute
  • Profile Illumination: Standard
  • Surface Illumination: Standard
  • Quick Change Lens Mount (Lenses Not Included): Single
  • Collimating Condenser with Yellow/Green Filter: Standard
  • Control System / Software: Integral XYQ LED readout, QC100/200, M1, M2
  • Display (Control System Dependent): QC DRO or 15.6" Touchscreen PC, Integral LED XY Display
  • Optical Edge Detection: Optional
  • Lenses (One Required, Not Included): 10X, 20X, 25X, 50X
  • Precision Centers & Vees: Optional
  • Helix Center Support Fixture: Optional
  • Precision Rotary Work Stage: Optional
  • Cabinet Stand 23": Optional


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    Trifold Informational brochure for VB300 optical comparator

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