Block Vs. Tubular Photo Sensors

We do periodic training for our products and company as many industrial suppliers do. These trainings are typically for new hires, distribution staff and sometimes just to refresh our own minds. As a part of the photoelectric sensor training segment, we try to introduce the many different types of sensors we sell. But the most common types typically fall into two categories: Block or Tubular body types. And inevitably the question gets asked: “which one should I specify to the customer?” Great logical questions, but unfortunately no simple answer.

Save Space with Miniature Rectangular Proximity Sensors

Historically the most popular selling housing style for an inductive proximity sensor has been the tubular style.  The more popular sizes tend to be M8, M12, M18 and M30.  Smaller tubular sizes of 3 mm, 4 mm, M5, and 6.5 mm are also available and have seen increased sales in the most recent years.  One issue that may affect a tubular sensor’s application is its length.  Most standard models are 50 mm to 65 mm long while some shorter body types may be in the 30mm range.  What if your application requires 1.5 to 3 mm of sensing range, but you only have 10mm of depth to allow for the sensor?  Try looking at a block or rectangular style inductive proximity sensor.