SICK WL8-N2131 Retro-Reflective Photoelectric Sensor

The Applications

1. High-Speed Product Detection on Packaging Conveyors

In modern packaging lines, products move rapidly and often with very small gaps between them. The SICK WL8-N2131 is well suited for this task because its fast response time allows precise detection even at high conveyor speeds. Its compact housing fits easily into narrow conveyor frames where mounting space is limited. Reflective packaging materials can cause unstable signals, but the built-in optical filtering helps maintain consistent detection. This results in accurate counting, reliable triggering of downstream equipment, and fewer interruptions caused by missed or false detections during continuous production.

2. Pallet and Tote Presence Monitoring in Logistics Systems

Automated warehouses rely on accurate confirmation of pallet or tote positions before movement occurs. The SICK WL8-N2131 provides dependable presence detection at transfer stations, lift points, and conveyor intersections. Its sensing method works reliably across different pallet colors and surface conditions. The sealed housing protects the sensor from dust and mechanical vibration common in logistics environments. Clear visual indicators help technicians confirm alignment quickly, reducing setup time and maintenance effort. This improves overall system reliability and helps prevent mechanical collisions or handling errors.

3. Small Component Detection in Automated Assembly Cells

Assembly machines often require confirmation that small parts are present before a process step begins. The SICK WL8-N2131 supports this requirement by delivering stable detection of small or fast-moving components. Its focused optical design minimizes interference from surrounding machine parts and backgrounds. The slim sensor body allows installation close to fixtures or tooling without obstructing motion. By ensuring components are correctly detected before assembly, the sensor helps reduce rejects, prevents machine jams, and improves overall production consistency.

4. Position Verification for Machine Doors and Guards

Industrial machinery frequently uses automated doors or protective guards that must be correctly positioned before operation. The SICK WL8-N2131 can confirm open or closed positions by detecting a reflector mounted on the moving element. Its quick signal response provides immediate feedback to the control system, supporting safe machine operation. Flexible switching logic simplifies integration with different control schemes. The durable design tolerates vibration and temperature changes, helping maintain reliable position feedback over long operating periods.