Sick GL6-P6111 Photoelectric Sensor

The Sick GL6-P6111 Photoelectric Sensor operates on a dual-lens retro-reflective sensing principle, utilizing a PinPoint LED light source that emits visible red light at 650 nm. It offers a dependable sensing range of up to 5 meters, with a maximum capability of 6 meters, making it ideal for mid-to-long-range detection on conveyors, bottling lines, and part-handling stations. The sharp light spot, 8 mm in diameter at 350 mm, ensures consistent detection of small or transparent objects without external adjustment mechanisms.

This photoelectric sensor is equipped with a PNP digital output and supports both light-on and dark-on switching via a selector. Despite not having manual adjustment, its pre-configured optics deliver excellent performance out of the box. The response time is less than 625 µs, and it supports a high switching frequency of 1,000 Hz, allowing it to function reliably in high-speed operations. With a supply voltage range of 10–30 V DC and current consumption of just 30 mA, it offers energy-efficient operation while maintaining superior detection performance.

Built in a rectangular housing (12 mm × 31.5 mm × 21 mm) using ABS/PC plastic and a PMMA front lens, the GL6-P6111 sensor is IP67-rated for protection against dust and water, ensuring longevity in harsh industrial conditions. The 4-pin M8 cable connection ensures secure, industry-standard integration. With a compact 60 g form factor and proven Sick build quality, this sensor is well-suited for systems where reliability, space-efficiency, and fast detection are essential.

The Sick GL6-P6111 Photoelectric Sensor is widely used in automated production lines where quick and accurate detection of moving objects is critical. In bottling and labeling machines, it ensures every product is properly aligned and accounted for, even when items are reflective, curved, or irregularly shaped.

Its retro-reflective dual-lens technology eliminates the need for external adjustment and simplifies installation, especially in areas with limited access. Maintenance engineers find it particularly useful in systems where frequent setup or calibration is impractical. Its fast switching speed and wide voltage range allow integration into a variety of PLCs and control panels.

For engineering students and junior technicians, the GL6-P6111 photoelectric sensor offers a hands-on example of real-world sensor engineering—balancing optical precision, electronic robustness, and field-tested durability. Whether you're designing a machine from scratch or replacing a faulty sensor in an existing setup, this Sick photoelectric sensor provides long-term value, accuracy, and confidence in industrial operations.