Procurement teams shortlist PRK-55-6D-42-S8 with Sick Diffuse Sensor, Leuze Ls5B Xx 200 M12 and Leuze Proximity Sensor, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Leuze PRK 55/6D.42-S8 | 50112992
| Brand | Leuze |
| Product Type | Photoelectric Sensor |
| Product | PRK 55/6D.42-S8 |
Leuze m8 connector, red LED light source retro-reflective sensor PRK 55/6D.42-S8 - 50112992 Technical Specifications:
| Specification | Value |
|---|---|
| Design | Cubic |
| Operating principle | Reflection principle |
| Application | Detection of highly transparent bottles |
| Special version | All stainless steel housing Autocollimation Teach input |
| Sensing Distance | 0 ... 3 m |
| Beam path | Divergent |
| Light source | LED, Red |
| Wavelength | 620 nm |
| Type of light spot geometry | Round |
| Supply voltage UB | 10 ... 30 V, DC |
| Switching Output 1 | Transistor, Push-pull |
| Switching principle | Dark switching (PNP)/light switching (NPN) |
| Switching Output 2 | - |
| Switching principle | - |
| Switching frequency | 1,000 Hz |
| Response time | 0.5 ms |
| Function | Signal IN Signal OUT Voltage supply |
| Type of connection | Connector |
| Thread size | M8 |
| Type | Male |
| Material | Stainless steel |
| No. of pins | 4 -pin |
| Encoding | - |
| Dimension (W x H x L) | 14 mm x 35.5 mm x 25 mm |
| Housing material | Stainless steel |
| Metal housing | AISI 316L |
| Lens cover material | Plastic with scratch-resistant Indium protective coating |
| Housing color | Silver |
| Type of display | LED |
| Operational controls | Teach button |
| Ambient temperature, operation | -30 ... 55 Β°C |
| Ambient temperature, storage | -30 ... 55 Β°C |
| Degree of protection | IP 67 / IP 69K |
The Leuze PRK 55/6D.42-S8 is built with a robust AISI 316L stainless steel housing that provides maximum resistance to moisture, corrosion, and mechanical impact. Its cubic design and hygienic construction make it ideal for use in environments requiring strict cleanliness standards. The sensor operates on the reflection principle using a divergent beam path that enables consistent detection of transparent and irregular surfaces, such as bottles and containers found in the food and pharmaceutical sectors.
At the core, this photoelectric sensor uses a 620 nm red LED light source with a round light spot geometry for precise alignment and detection. It offers a sensing distance of 0 to 3 meters, and is equipped with a push-pull transistor output supporting both dark switching (PNP) and light switching (NPN) configurations. Operating on a 10 to 30 V DC supply, the sensor ensures rapid response with a switching frequency of 1,000 Hz and a response time of just 0.5 ms, making it suitable for high-speed automation systems. Its integrated Teach button and visible LED display enable intuitive setup and diagnostics without external tools.
The connection is facilitated via a 4-pin M8 male connector, ensuring easy plug-and-play integration into modern PLC-controlled environments. Internally, the sensor features dual signal channels for IN/OUT voltage supply and maintains stable operation across temperatures ranging from -30Β°C to +55Β°C. With a protection rating of IP67/IP69K, the Leuze PRK 55/6D.42-S8 Photoelectric Sensor is fully sealed against water ingress and withstands high-pressure washdowns, making it a trusted solution for demanding industrial environments.
The Leuze PRK 55/6D.42-S8 Photoelectric Sensor is engineered specifically for detecting highly transparent bottles on high-speed conveyor lines. In typical applications like bottled water plants, cosmetic filling stations, or pharmaceutical packaging lines, transparent containers often go undetected due to low reflectivity. This model solves that challenge with its autocollimation optics, ensuring the emitted light and reflected beam remain precisely aligned even with minimal reflection.
Maintenance engineers will value the sensorβs real-time switching speed of 1,000 Hz, which ensures no product is missed, even on fast-moving production lines. For environments that demand regular cleaning, the stainless steel housing and IP69K rating provide long-term durability and washdown resistance. The sensorβs compact body (just 14 mm x 35.5 mm x 25 mm) allows for flexible installation in tight spaces, making retrofits and upgrades easier for teams on-site.
Whether you're designing a new automated system or upgrading an existing line, the Leuze PRK 55/6D.42-S8 Photoelectric Sensor offers dependable transparency detection, rapid setup via the Teach button, and long service life in aggressive industrial environments. Trusted by engineers worldwide, this photoelectric sensor is built for performance where precision, hygiene, and speed matter most.

