Laser barrel sensor suits automated conveying

Paul Boughton

A new 318 laser barrel sensor being introduced by Leuze Mayser will appeal to those companies developing and building automated conveying systems; its exceptionally high switching frequency of 5kHz allows precise positioning and detection of objects, while the hollow barrel design means its accuracy is unaffected by changes in ambient fluctuations.

Other key features pertinent to designers of handling and conveying systems are the M18 plastic housing, which is believed to be the world's shortest for this type of device, and the optic options that allow the 318 sensor to be mounted either vertically or horizontally. These significant benefits enable the 318 sensor to be mounted where access is restricted and within the confines of the actual conveyor, thereby reducing the risk of sensor damage due to other activity in the vicinity of the sensor.

The new barrel sensor is available in three formats: through-beam for sensing over distances up to 120m is the standard model, or Leuze Mayser can supply a high-resolution version covering 18m for the detection of small objects, a polarised retro-reflective sensor for distances of 15m, and, where sensing is up to 35cm, there is a diffuse-reflective sensor. For each sensor type the laser beam geometry, which is convergent and fix-focussed, has been optimised to achieve the very best performance from this compact design of optical sensor.

In addition to the plastic-housed 318 barrel sensors, there is also a stainless steel model; both sensors are designed with extremely good sealing qualities to prevent penetration of water and humidity. These features open up the use of the 318 laser barrel sensor to a host of industrial applications where, despite a rough environment, the sensor's accuracy and performance need to be maintained.

For more information, visit


Recent Issues