PowerProx Sensors – Powerful Photoelectric Sensing in Miniature

Photoelectric Sensors are utilised in a vast array of industrial applications, from monitoring products on a production line in a food and beverage processing plant to controlling automatic doors for safety and security. Whatever the installation, there is a photoelectric sensor out there to suit your particular application, but when the installation is limited in space, you need a quality photoelectric sensor from one of the worlds renowned leaders in the design and manufacture of dependable sensor technology, SICK.

Powerprox Sensor in situ

SICK has taken its ultra-reliable, high-performance, PowerProx sensor and shrank all that technology into a space-saving miniature housing that is capable of some of the longest detection range distances ever achieved for a sensor of this scale.

Size Does Matter

The diminutive SICK WTT4SL PowerProx Mini photoelectric sensor measures in at just 12.2 x 41.8 x 17.3 mm but packs a big punch, delivering outstanding performance that you would expect from a sensor 4 times its size. Capable of detecting objects up to 1300 mm away. The knock out performance of the WTT4SL makes it ideal for high-speed production and logistics applications.

This capable photoelectric sensor can be integrated into tight machine spaces such as the grippers of picking robots or for material handling duties in AGVs, as well as for empty bay and clearance detection in high-bay warehouses.

Packed with innovation, SICK has crammed its renowned autocollimation time-of-flight sensing technology into the tiny housing. Autocollimation ensures reliable high-speed detection and outstanding repeatability even in challenging ambient conditions, without cross-talk interference from other sensors.

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Finding the Edge

Even at high process line speeds the ultra responsive PowerProx Mini will register the leading edges of products with precision, even through small holes, such as those found during the quality control inspection of automotive parts and assemblies. Its red-light Class 1 laser, small-light spot size and wide angle of incidence with switching frequencies up to 1 kHz ensure highly-competitive performance across a broad range of applications.

David Hannaby, SICK’s UK Product Manager for Presence Detection stated :
“The SICK PowerProx Mini can replace through beam, background suppression or reflex sensors, so machine builders and production teams can streamline their inventories while still guaranteeing high-performance sensing. The PowerProx Minis can be set up in an instant using the on-board teach-in function, or via IO-Link. It’s all the reliability, repeatability and versatility you expect from SICK, packed into a sensor no larger than a packet of sugar cubes.”

Powerprox Sensor in situ

Easy to Configure

The PowerProx Miniature Photoelectric Sensor can easily be configured for multi-task applications, packed with features including the option of IO Link communication and up to 8 variable switching outputs. Detection is guaranteed with 100% background suppression ensuring that only the desired target is detected, ignoring any interference from shiny objects and materials behind the detected subject. Available in speed or distance variants for optimum performance and with superb repeatability ensuring reliable component counting, sorting and quality control applications in high-speed fast moving consumer good processes, even with products that feature varying surfaces.

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If you are looking for a reliable Miniature Photoelectric Sensor solution then look no further than Kempston Controls to help you decide upon the best product solution for your particular installation. With access to the entire SICK product range we have all of your bases covered, give us a call on (+44) 1944 411 411 or email us at sales@kempstoncontrols.co.uk, or use this contact form today to discuss how the PowerProx Miniature Sensor can help you.

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Kempston Controls


Kempston Controls is committed to finding you the ideal solution for your application. Call us today on +44 (0) 1933 411 411, email us at sales@kempstoncontrols.co.uk, or alternatively contact us here, we will be happy to help.

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