SICK Retroreflective Photoelectric Sensor, Miniature Sensor, 4.5 m Detection Range

With the W4F, high performance and smart automation are now also available in a miniature size. The miniature sensor is the perfect complement to the product range of a new generation of opto-electronic sensors such as the W16 and W26 and, thanks to the new ASIC technology from SICK, consistently delivers extremely reliable detection results. This allows for versatile use in a wide range of challenging installation situations. Thanks to ForegroundSuppression, DoubleLine, V-optics and MultiSwitch, the W4F is a high-performance application specialist: Background suppression is improved, and flat, highly-reflective and transparent objects are detected even more precisely. In addition, the W4F as Smart Sensors make monitoring and diagnostics easier than ever before and enable future-proof use in I4.0 plants.

Technologies: ForegroundSuppression, DoubleLine, V-optics and MultiSwitch
Two switching points and distance value output in one device
Diffuse sender LED for ambient light suppression
BluePilot: Teach-Turn adjustment with optical sensing range and alignment aid
Smart Sensor: Latest diagnostics and monitoring functions
VISTAL® housing

Solution for particularly challenging detection tasks in tight installation spaces
Very high reliability through powerful background suppression and excellent detection of flat, highly-reflective and transparent objects
Two switching points as well as the output of distance values expand the application possibilities
Flexible use thanks to high optical reliability
The highly-visible light spot combined with the intuitive BluePilot operating interface enables set-up in mere seconds
Maximum monitoring and process reliability thanks to intelligent monitoring and predictive maintenance
As Smart Sensors, fit for Industry 4.0

The Sick WLD4FP series is a miniature photoelectric retro-reflective sensor, which has the sensing range of 4.5 m and has PinPoint LED light source. SICK is one of the leading manufacturers of intelligent sensors and sensor solutions for industrial applications. A unique range of products and services creates the perfect basis for controlling processes securely and efficiently, protecting individuals from accidents and preventing damage to the environment.

Checking of storage space occupancy
Detection of flat and glossy packages on conveyor belts
Equidistant infeed of products
Feed monitoring of label films
Presence monitoring of products during transfer into packaging
Positioning of hot glue nozzles
Detection and identification of 1D codes on test tubes
Detection and identification of 2D codes on test tubes
Paper tear monitor
Presence check for paper
Detection of paper edges
Leading edge detection and presence checking
Sheet presence and punch monitoring
Sheet presence and position monitoring
Presence monitoring and counting process
Monitoring the material transportation
Access protection with muting on belt conveyors
Protrusion monitoring on the tray stack
Checking presence and level monitoring in a vibratory bowl feeder
Level monitoring in the parts bunker
Checking presence at the dispenser
Reliable detection of irregular objects
Fiber break monitoring for warp production

Reliable detection of irregular objects
Fiber break monitoring for warp production
Reliable detection even of reflective safety vests
Angled detection of printed circuit boards
Intelligent occupancy detection of workpiece carriers
Occupation checking of trays
Detection of flat objects on conveyor belts
Reliable detection on roller or chain link belts
Reliable detection of solar cells
Detection, measurement, and positioning of the solar glass substrate
Intelligent position and deflection detection
Protrusion monitoring of solar glass substrates
Detection of parcels on double conveyor belts
Reference positioning
Protrusion detection at the shuttle
Fine positioning of the lifting unit
Complete monitoring of the load status by means of a photoelectric proximity sensor directly integrated into the load handling device

Product details cover the whole product family. For details on the specifications for this individual product, please refer to the datasheet.