SICK WTT12L-B3546 PowerProx Laser Distance Sensor

SICK WTT12L-B3546 PowerProx – High-Precision Time-of-Flight Laser Distance Sensor

The SICK WTT12L-B3546 PowerProx laser distance sensor is built for situations where stable and long-range object detection is critical. Using refined time-of-flight technology, it reliably measures distances even when objects have low reflectivity or are positioned irregularly. Its compact rectangular housing allows integration into tight machine spaces, while the visible red laser makes alignment simple during installation. With a measurement capability from short reach to nearly two meters, the sensor solves the common challenge of inconsistent readings in fast automated lines, packaging systems, and robotic processes. It delivers dependable performance even when exposed to vibration, dust, or temperature variations.

The WTT12L-B3546 PowerProx enhances productivity by combining fast response, dual switching outputs, and refined background suppression to maintain accurate detection across diverse materials and colors. Its rugged enclosure, high repeatability, and stable optical design minimize downtime linked to misreads or sensor drift. Adjustments can be made quickly using the built-in potentiometers, helping technicians fine-tune sensing points without complex setup. Whether used on conveyors, assembly fixtures, automated storage, or robotic pick-and-place, the sensor provides consistent detection even at higher speeds. Its long expected service life and low power demand make it a dependable choice for long-term industrial operation.

Why WTT12L-B3546?

The WTT12L-B3546 stands out because it delivers long-range, laser-sharp detection in places where traditional sensors struggle. Its advanced time-of-flight engine offers consistent accuracy—even with dark, shiny, or angled surfaces—while staying compact enough for tight machine layouts. It brings premium detection performance to automation systems that demand both speed and reliability.

What Problem Does It Solve?

This model solves the common challenge of unstable object detection when materials vary in color, reflectivity, or distance. Instead of fluctuating readings or missed triggers, it delivers clear, dependable measurement across a wide range. It eliminates false detections in high-speed conveyors, robotic workflows, and packaging lines, improving productivity and reducing costly downtime.

Key Features & Specifications – SICK WTT12L-B3546 (1072621)

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Commercial Information

The Applications

1. High-Speed Carton Detection for Packaging Lines

Modern packaging systems handle cartons with different textures, coatings, and colors, which often leads to unreliable triggering when using basic optical sensors. The WTT12L-B3546 improves detection by measuring distance rather than relying on reflectivity, allowing it to pick up cartons even when surfaces are glossy or dark. Its quick response helps maintain product spacing during sealing or labeling, reducing jams and backup on the conveyor. Because it performs consistently regardless of carton appearance, production teams experience fewer stoppages and can keep high-speed lines running smoothly throughout long shifts.

2. Position Checking for Robotic Handling Systems

In automated assembly or sorting cells, robots must confirm a component’s presence before attempting to grip it. Variations in part shape, finish, or orientation can confuse conventional sensors. The WTT12L-B3546 uses precise time-of-flight measurement to verify distance reliably, enabling the robot to detect whether a part is correctly placed on a tray or fixture. Its compact size allows it to be mounted close to the tool head, improving accuracy during fast movements. With stronger background suppression, it ignores nearby machine structures, reducing misreads and improving the robot’s overall handling efficiency.

3. Pallet Edge Detection in Automated Warehouses

Warehousing systems rely on accurate detection of pallet edges when aligning shuttles, conveyors, or lift platforms. Pallets may be damaged, discolored, or uneven, making them difficult for basic sensing technologies to detect consistently. The WTT12L-B3546 measures distance directly, allowing it to recognize pallet surfaces even when the wood is worn or the lighting changes throughout the day. Its durable construction withstands dusty and temperature-variable environments commonly found in logistics operations. By reliably identifying pallet positions, the sensor supports smoother transfers between equipment and minimizes alignment errors that slow down warehouse throughput.

4. Large Component Monitoring in Automotive Production

Automotive lines move oversized parts—such as body panels or structural frames—through tightly coordinated workstations. These parts may have curved, painted, or reflective surfaces that challenge standard sensors. The WTT12L-B3546 provides stable detection over extended distances, ensuring the system knows exactly when a part enters or exits a station. This helps synchronize welding robots, lifting mechanisms, or inspection tools with the component’s movement. Its fast reaction time supports continuous-flow production, while the sensor’s consistency reduces false triggers and contributes to improved line reliability across demanding automotive environments.

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