SICK WF2-40B416S01 High-Precision Fork Sensor

SICK WF2-40B416S01 Fork Sensor – High-Precision Label & Object Detection

The SICK WF2-40B416S01 fork sensor is engineered for applications that demand fast and reliable detection of small objects and label edges. Built with a slim 2 mm fork width and a compact body, it excels in confined machine layouts where accuracy and space efficiency are crucial. The device uses a responsive optical principle to capture even tiny variations in material passing through the sensing gap. Its simple button-based Teach-in method ensures quick setup and consistent performance, making it ideal for labeling lines, small-part handling, and rapid automation processes.

The WF2-40B416S01 delivers strong detection stability, allowing machines to maintain high throughput without frequent recalibration. Its fine adjustment controls help users tune sensitivity for different materials, from thin films to narrow labels, supporting uninterrupted operation across changing production batches. The sturdy aluminum housing adds mechanical durability, while the M8 connector provides straightforward electrical integration. With rapid response behavior and compatibility with both PNP and NPN outputs, the sensor supports flexible system design. This combination of precision, speed, and ease of use helps reduce false triggers, minimize downtime, and improve overall process efficiency in packaging and automation lines.

Why SICK WF2-40B416S01?

The SICK WF2-40B416S01 offers a rare mix of ultra-fine detection, compact size, and effortless setup. It senses tiny label edges and micro-objects with impressive consistency, even on fast-moving lines. Its quick Teach-in system lets operators adapt instantly to material changes, making it a powerful upgrade for anyone needing dependable precision in tight or demanding automation spaces.

What Problem Does It Solve?

This sensor eliminates the common frustrations of missed labels, unstable detection, and slow recalibration. It accurately identifies very small or low-contrast materials that typical sensors struggle with. By maintaining stable switching at high machine speeds, it helps prevent jams, misfeeds, and downtime—solving the reliability gaps in packaging, labeling, and fine-part handling operations.

Key Features & Specifications – SICK WF2-40B416S01: Part Number 6033169

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Commercial Information – SICK WF2-40B416S01

The Applications

1. Precision Label Edge Detection on Fast Packaging Lines

On high-speed packaging machines, accurate label application depends on reliably sensing each label as it moves through the web. The WF2-40B416S01 excels here because its narrow fork width and high detection sensitivity capture even thin label edges without drifting or misalignment. The fixed optical gap ensures the emitter and receiver remain perfectly positioned, preventing errors from vibration or material flutter. Operators can quickly adjust sensitivity when switching label rolls using simple Teach-in controls. This stable performance reduces missed labels, prevents double-feeding, and keeps the packaging cycle moving smoothly, making it ideal for demanding consumer-goods production lines.

2. Transparent Film & Clear Label Sensing in Print and Packaging

Many print and packaging plants struggle with detecting clear or low-contrast materials such as transparent labels, glossy films, or thin protective liners. Traditional sensors often misread these due to inconsistent light reflection. The WF2-40B416S01 overcomes this challenge by detecting subtle changes in light passage through its fork gap, enabling dependable switching even when the film and backing look nearly identical. Its fine-tuning capability allows operators to match sensor response to difficult materials in seconds. This results in fewer stoppages, better tension control, and reliable detection of each film position during cutting, laminating, or label placement operations.

3. Small-Part Detection in Compact Assembly Machines

Assembly lines handling miniature components—such as clips, springs, thin strips, or PCB sub-elements—require precise presence detection to avoid assembly errors. The WF2-40B416S01 is well suited for this environment thanks to its ability to sense objects as small as 0.2 mm. Its compact aluminum housing fits easily into tight machine frames where space is limited. The fast reaction time ensures parts are detected even when traveling rapidly between stations. This consistent performance enables better process verification, reduces misfeeds, and helps maintain the quality of downstream assembly steps, making it a strong choice for electronics, tooling, and light mechanical manufacturing lines.

4. Splice, Overlap, and Double-Sheet Detection in Film & Paper Processing

In film converting, sheet feeding, or paper processing equipment, detecting irregularities such as splices, overlaps, or unintended double layers is critical for preventing jams and print defects. The WF2-40B416S01 can sense very small variations in material passing through its slot, allowing it to identify when two sheets overlap or when a splice mark enters the system. With its finely adjustable switching threshold, the sensor adapts quickly to different substrate types—whether paper, foil, or plastic. This results in smoother machine operation, reduced scrap, and more consistent material flow, particularly in processes that run continuously for long production cycles.

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