With over 550 employees worldwide, Prüftechnik are world leaders in Condition Based Monitoring, Non-Destructive Testing and Laser Alignment solutions across a wide range of industrial applications.

With products, processes and services for condition monitoring and availability optimization, Prüftechnik helps to ensure that your machines run smoothly and generate an output of consistently high quality. This also includes systems for automatic process control and quality assurance that are integrated directly in your production process.



The ATEX/EX certified system is modular and can be easily configured to meet your job and budget requirements.

Thanks to its intuitive operation, ergonomic design and the many features, OPTALIGN smart EX remains a sought-after measurement system in the maintenance of rotating machinery such as pumps, motors, gearboxes and compressors.

Vertical and horizontal machine corrections are monitored live on the screen. OPTALIGN smart EX is delivered in a robust and valuable light-aluminum case which is suitable for hazardous areas. PDF reports can be generated and directly saved from the system onto a USB stick. The optional wireless Bluetooth module is certified ATEX/Ex/IECEx. It allows wireless data transmission from the sensor to the computer. This is a unique capability of PRÜFTECHNIK alignment systems for hazardous areas.

Key features

  • System and case fully certified for potentially explosive areas.
  • Alignment of horizontal, vertical and flange-mounted machines, coupled and uncoupled shafts.
  • Hundreds of positions are automatically measured during shaft rotation (SWEEP).
  • Automatic evaluation of alignment condition with smiley symbols (TolCheck) and user-defined tolerances.
  • Live monitoring of horizontal and vertical machine corrections.
  • Save PDF measurement reports directly to a USB stick: no PC required.
  • Wireless data transfer using the ATEX/IECEx certified Bluetooth module (optional).

Thanks to its intuitive operation, ergonomic design and its many beneficial features, OPTALIGN® smart  EX remains a sought-after measurement system in the maintenance of pumps, motors, gearboxes, compressors, and a variety of rotating machinery. If machines are precisely aligned, the load on the shafts reduces dramatically. This results in increased machinery life, extended machine availability and the keeping down of maintenance costs. The high resolution backlit TFT screen, the low weight and the distinct positioning of the operating keys make it possible to carry out alignment jobs under extreme conditions.

The secret behind the intuitive operation lies in the three blue round function keys for the main alignment steps, the context menu, the status line help text, and the clear depiction of alignment results. Uncomplicated and easy to comprehend. The default configuration can be enhanced with powerful features as job demands grow, making OPTALIGN® smart EX an investment for the future that pays off.


  • Alignment of horizontal, vertical and flange-mounted machines
  • Alignment of coupled, uncoupled and nonrotatable shafts
  • Soft foot check – measure, correct and save results
  • UniBeam for quick adjustment of the single laser beam
  • Continuous SWEEP measurement mode automatically activated as shaft is rotated – start and stop rotation at any position
  • Automatic evaluation of alignment condition with TolChek® and user-defined tolerances
  • InfiniRange® extends detector measurement range to handle gross misalignment
  • QuickCheck – uses a single dimension to display both horizontal and vertical coupling values
  • Static measurement mode – requires any 3 of the 8 available 45° measurement positions
  • Live monitoring of horizontal and vertical machine corrections
  • Result table to verify measurement repeatability
  • Save up to 500 measurement files in the device
  • Save measurement reports as PDF to a USB memory stick
  • Data protection - auto save and resume capability
  • Alignment of 6-foot machines
  • Checking the effects of pipe strain on shaft alignment
  • High resolution backlit colour TFT screen

Powerful options

  • RF module for wireless data transmission
  • 3-machine train alignment
  • Enter alignment targets and thermal growth values including input of dial indicator readings
  • Fixed feet selection – resolves base-bound and bolt-bound problems
  • Multipoint mode – measurement at any 3 or more positions over 60° rotation or wider
  • Alignment of cardan and spacer shafts
  • Heavy-duty rechargeable Li-Ion battery
  • PC software ALIGNMENT CENTER is used for preparing, analyzing, archiving measurement files and printing professional reports​
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