Unanodized Solid Aluminum Optical Breadboards


Unanodized Solid Aluminum Optical Breadboards

  • Unanodized Finish for Use in Vacuum Applicaions
  • Through-Tapped Mounting Holes
  • Custom Sizes Available
  • Mertic Boards Manufactured and Stocked in Europe


   * Precision Manufactured Unanodized Surface
   * Electrically Conductive for Applications Requiring a Common Ground
   * Standard Imperial and Metric Breadboard Hole Patterns
   * Offset Counterbored Mounting Holes Allow a Full, Uninterrupted, Threaded Hole Matrix
   * Larger Breadboards (MB1218U, MB1824U, MB3045U/M, and MB4560U/M) Have a Fifth Center-Located Counterbore Mounting Hole
   * Double-Hole Density Versions and Custom Sizes Available
   * All Boards Stocked for Quick Delivery

These solid aluminum, unanodized, nonmagnetic breadboards provide a convenient and cost-effective platform for assembling prototype optical assemblies, and conducting experiments. They are finished with a precision-ground surface and are through-drilled with a standard 1" (imperial) or 25 mm (metric) hole pattern offset 1/2" or 12.5 mm from the edges of the board, respectively.

These breadboards are also a great choice for mounting small subsystems within a vacuum environment down to 10-6 Torr. However, before use in a vacuum system, these breadboards will require additional treatment and cleaning. Thorlabs does not offer these services at this time. For additional information on preparing these breadboards for vacuum applications, please contact Tech Support.

Each breadboard features four or five mounting holes, which are counterbored to create an uninterrupted surface for your application. The four standard mounting holes are located at each corner of the breadboard, inset 1" from each edge on imperial breadboards (25 mm on metric). The two largest imperial and metric boards (MB1218U, MB1824U, MB3045U/M, and MB4560U/M) have a fifth counterbored mounting hole in the center of each respective breadboard. Utilizing the center mounting hole increases the mounting options available, reduces stress at the corner mounting holes, and increases rigidity when heavy loads are placed on the boards. The mounting holes may be used to attach the breadboards to optical tables, other breadboards, mounting posts, brackets, or a variety of other surfaces or mounts.

Because the holes are threaded completely through these breadboards, components can be mounted on either side of the breadboards. Ø1.5" Mounting Posts allow for adjustments to the height of the optical axis by mounting the breadboards above the surface of an optical tabletop (or another breadboard). The breadboards can also be mounted vertically using 90° or Vertical Mounting Brackets.

Black Anodized Aluminum Breadboards are also available in a variety of sizes. The black anodized coating on these breadboards is ideal for limiting stray reflections in an optical system. We do not recommend the anodized breadboards for use in vacuum applications.


Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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