Sick VL180-2P41131 Photoelectric Sensor

The Sick VL180-2P41131 Photoelectric Sensor is a robust retro-reflective proximity sensor that uses a dual-lens energetic detection principle to achieve consistent performance over distances up to 7 meters. Designed with a cylindrical M18 x 1 housing and compact dimensions of 18 mm x 18 mm x 62.9 mm, this sensor is optimized for integration into industrial machinery, conveyors, and high-precision packaging systems. The axial optical axis and focused beam angle of 4.5° help in identifying targets reliably, even in complex background conditions. A clearly visible red LED light at 645 nm wavelength with a defined light spot size of Ø 400 mm at 6 meters supports easy alignment and monitoring in real time.

This PNP output sensor operates on a 10 V to 30 V DC power supply with a low 30 mA current consumption, making it both energy-efficient and PLC-compatible. Its switching behavior can be easily toggled between Light ON / Dark ON modes using the L/D control cable, while a 270° sensitivity adjustment potentiometer provides precise detection calibration. It responds in less than 0.5 milliseconds and supports a switching frequency of 1,000 Hz, suitable for rapid object detection in high-speed automation lines.

The housing, built from nickel-plated brass and polycarbonate (PC), and the optics made from durable PMMA, ensure long service life and protection in dusty, moist, or rugged production environments. It meets the IP67 enclosure rating, ensuring resistance against water ingress and particulate exposure. The 2-meter, 4-wire cable connection simplifies installation in constrained machine layouts. Trusted by engineers worldwide and manufactured to Sick’s rigorous quality standards, the VL180-2P41131 continues to be a reliable choice for precision automation tasks.

The Sick WL4S-3F2130 Photoelectric Sensor is commonly used for object detection in high-speed industrial automation lines. Its retro-reflective design makes it ideal for detecting labels, transparent bottles, pallets, or packages moving on conveyors without requiring complex sensor alignment or background suppression setups.

Junior technicians will find it easy to install and align, as the red LED beam is clearly visible during setup. With the sensor already integrated with a 2-meter cable, wiring is straightforward and ready for direct PLC connection. No need for programming software — just mount the sensor, connect the wires, set the sensitivity using the built-in potentiometer, and it's ready to operate. Its sturdy IP67-rated housing ensures it works reliably even in dusty or humid factory conditions, which is common in Indian manufacturing units.

For senior maintenance engineers, the key benefit lies in the ultrafast 0.5 ms response time and stable long-range sensing performance — even for shiny or low-contrast materials. It helps reduce false detections, boosts uptime, and cuts down on recalibration requirements. Engineering students studying industrial sensors can gain hands-on experience with beam geometry, signal tuning, and electrical output logic through real-world usage of this model. These practical advantages, paired with Sick’s global reputation for accuracy and durability, make this sensor a valuable asset in both learning and production environments.