Banner Engineering S18SN6FF50 Photoelectric Sensor

The Banner Engineering S18SN6FF50 is a compact 18 mm barrel‑mount photoelectric sensor with a fixed 50 mm sensing range and background suppression, part of Banner's EZ‑BEAM S18 series. It operates on 10–30 V DC and delivers a complementary NPN output via a 4‑pin, 2 m cable, with the housing’s epoxy‑encapsulated thermoplastic construction designed for rugged industrial use. The sensor’s infrared LED provides a reliable diffuse sensing beam, and the fixed‑field mode ensures consistent detection at the specified distance while supporting light/dark operate behavior. Built to withstand demanding environments, it carries IP67 and IP69K protection for washdown‑readiness and long‑term reliability in harsh settings, with an operating temperature range of -40 to 70 C. The S18SN6FF50’s 50 mm fixed range, 18 mm barrel diameter, and compact form factor make it suitable for conveyors, packaging lines, and automation cells where precise, repeatable detection of small parts is required on a crowded background, delivering a fast 3 ms output response and a repeatability of 750 μs to support high‑speed applications.