SICK W26 photoelectric sensors: precision and reliability for your industrial processes

Introduction

In modern industry, precise object detection is essential to ensure the quality, safety, and efficiency of production lines. The W26 photoelectric sensors from SICK stand out for their robustness, reliability, and ability to detect objects of various sizes and materials, even in demanding environments.

Principle of operation of photoelectric sensors

Photoelectric sensors use a light beam to detect the presence or absence of an object.

The main types of detection:

• Direct reflection (diffuse reflection): the sensor detects the object when it reflects the emitted light.
• Reflection on mirror: a beam passes to a reflector and returns, detecting any interruption.
• Thru-beam: A transmitter sends a beam to a receiver. The presence of an object interrupts the beam and triggers the signal.

These principles make it possible to meet different needs: detection of small objects, tracking on conveyors, position control, etc.

Key features of the SICK W26

The W26 series is designed to combine performance and ease of integration.

• Variable range: detection over short or medium distance depending on the model.
• Compact and robust housing: resistant to harsh industrial environments (dust, vibrations, projections).
• Installation flexibility: cylindrical or rectangular models to adapt to all types of lines.
• Reliable signal output: relay or transistor for integration into PLCs.
• Easy adjustment: adjustable sensitivity and integrated signal LED.
• Protection rating: IP67 for use in wet or dusty environments.

Typical applications of W26

W26 sensors are used in many industries:

1. Industrial automation: tracking of parts on production lines and conveyors.
2. Food and pharmaceutical industry: precise detection of objects on packaging lines.
3. Logistics: control of pallets and packages in automated warehouses.
4. Machine tools: part positioning and safety protection.
5. Quality control: verification of the presence or absence of components.

Benefits for manufacturers

• Reliability and accuracy: reduces production errors and unplanned downtime.
• Durability: long service life even in aggressive environments.
• Quick installation: saves time for maintenance and production teams.
• Compatibility with PLCs: facilitates integration into existing systems.

Limits and points of vigilance

• Sensitivity to certain extreme light conditions → it is sometimes necessary to adjust the sensitivity.
• Limited range depending on the model → you must choose the sensor adapted to the distance and size of the object.
• Requires precise alignment for mirror reflection or light barrier models.

Conclusion

SICK's W26 photoelectric sensors offer a reliable and flexible solution for object detection in industrial environments. Their precision and robustness help optimize productivity, improve safety, and reduce errors on production lines.