Measuring cylindrical shapes has never been easy, especially if they’re part of a larger piece of equipment. If you have a workpiece that has cylindrical bores or shafts and you need to know the diameter of these parts to use them effectively, you need a Stotz air-to-electronic converter.

With one of these electronic air gaging systems, you’ll be able to quickly and accurately measure these troublesome pieces. The Stotz air gage digital display is easy to read and navigate, making these products very simple to use. If you’re unsure if the Stotz air-to-electronic converter is the best choice for your company, you can learn a bit more about them below.

What is a Column?

Stotz columns are used to interpret the results from an air gage to a user-friendly display. The units below are the most cost-effective based on features on the market today.

Application Examples

  • Fuel Injection Components
  • Transmission Parts
  • Gears
  • Tapers
  • Landing Gear
  • Valves
  • Valve Body
  • Spools
  • Sleeves
  • Bearings

Types of Columns

MSM Column

This pneumatic-electronic column is a compact and low cost solution for manual measurements. All settings, including program selection are made by means of the color touchscreen.


The MSG-CL pneumatic-electric measuring column is a compact and cost-effective solution for manual measurements with a widescreen monitor and extended connection options.


The MRA-Compact measuring computer enables simple parameterization and supports integrated acquisition and evaluation of measured values.

By selecting plug-in modules, it can be configured for pneumatic or electrical (LVDT) measurements.

Data is exchanged via the standard interfaces 2xRS232, Ethernet, USB and 2x keypad or optionally via digital I / Os or Profibus.