SICK WTB8-N2231 Photoelectric Sensor with Background Suppression

SICK WTB8-N2231 Photoelectric Sensor with Background Suppression

The SICK WTB8-N2231 photoelectric sensor is engineered for precise object detection in compact automation environments. Using a refined background-suppression system and a visible red LED, it reliably detects objects across a 40–300 mm range, even when the surface color or finish varies. Its slim 11 × 31 × 20 mm body allows easy integration into tight mechanical spaces, while the IP67-rated housing ensures dependable operation in demanding industrial conditions. With quick response performance and selectable light/dark switching, this sensor effectively addresses challenges such as inconsistent lighting, reflective materials, and fast-moving parts—helping maintain consistent output quality within automated lines.

The WTB8-N2231 blends compact design with advanced optical control to deliver stable detection in everyday industrial workflows. Its tuning potentiometer allows fine, repeatable adjustments without complicated setup, enabling faster commissioning and reduced downtime. The rapid switching capability supports applications where items pass quickly through the sensing area, such as packaging, material handling, or sorting stations. Durable construction, low power draw, and built-in protection against wiring faults contribute to long service life and reduce unplanned maintenance. By maintaining consistency even with challenging surfaces like dark plastics or textured materials, the sensor helps boost process reliability and minimize false triggers.

Why SICK WTB8-N2231?

The SICK WTB8-N2231 delivers precise, repeatable detection in places where space is tight and reliability cannot fail. Its refined background suppression, fast response, and compact housing make it a powerful sensor for high-speed automation. Choose it when you need stability, accuracy, and long-term performance in challenging industrial environments.

What Problem Does It Solve?

The WTB8-N2231 eliminates inconsistent detection caused by dark objects, reflective materials, or changing background conditions. It ensures stable switching even when items move quickly or vary in color and surface quality. This sensor solves false-trigger issues that disrupt production, allowing automated systems to run smoothly and more efficiently with fewer adjustments.

Key Features & Specifications – SICK WTB8-N2231: Part Number 6033208

Download SICK WTB8-N2231 (6033208) Datasheet

Commercial Information – SICK WTB8-N2231

The Applications of the SICK WTB8-N2231

1. High-Speed Packaging Line Detection

Packaging lines often move products at speeds where human inspection becomes impossible, and many items vary in surface color or finish. The WTB8-N2231 provides dependable detection by focusing only on the product and ignoring conveyor reflections or background structures. Its rapid response time ensures each item is registered, even when spacing is minimal. Operators benefit from the stability indicator, which helps confirm alignment during format changes. This reliable performance reduces missed counts and prevents downstream issues such as jamming or mis-sorting, making it ideal for automated packing environments that handle a wide range of product types.

2. Robotics Pick-and-Place Position Feedback

Robotic pick-and-place systems require sensors that can confirm whether a component is correctly positioned before the robot engages its gripper. Parts may be shiny, dark, or textured, creating challenges for basic diffuse sensors. The WTB8-N2231 delivers consistent detection across these surface types, ensuring the robot receives accurate feedback every cycle. Its compact housing allows placement close to the gripping zone without obstructing motion paths. The sensor’s fast switching capability supports rapid robotic operations, reducing idle time between picks. By filtering out background interference, it minimizes false readings that can lead to misaligned grips, rework, or unexpected machine interruptions.

3. Bottling and Filling Line Outfeed Control

In filling processes, bottles exit the machine rapidly, often made from transparent or glossy materials that create detection inconsistencies. The WTB8-N2231 resolves this by concentrating its optical beam directly on the container surface, enabling stable sensing regardless of label style or material reflectivity. During product changeovers, operators can adjust the sensing range easily without needing complex recalibration. Its reliable output helps prevent overflows, jams at the outfeed area, and inaccurate flow control. This stability improves throughput, reduces downtime, and ensures better synchronization with downstream equipment such as cappers, labelers, or inspection systems.

4. Component Presence Verification in Assembly Fixtures

Automated assembly stations require confirmation that a part is fully inserted before further processing can begin. These components may be dark, small, or partially hidden inside deep fixtures. The WTB8-N2231 excels in such environments with its focused light beam and strong background suppression that differentiates the component from fixture walls. Its IP67 protection ensures stable operation despite exposure to dust, liguids, or machining particles. The quick response time supports high-cycle assembly tasks, reducing missed detections that could cause tool crashes or faulty assemblies. This consistent verification improves workflow efficiency and reduces error-related downtime.

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