Product Overview

The SICK WLG is a retro-reflective light grid designed for reliable detection of transparent and fast-moving objects. With a fixed 100 mm detection height and transmission using 8 LEDs, the WLG provides consistent performance in dynamic industrial environments. It excels at identifying small or subtle defects such as damaged pallets, detecting leading edges of material webs, and verifying bottle presence during sorting operations. The sensor’s ability to detect objects as small as 6 mm at a distance of 0.4 meters ensures high sensitivity without compromising speed. Its robust design makes it ideal for applications where precision and reliability are critical, especially when dealing with materials that are transparent or have reflective surfaces.

Key Features and Technology

The WLG leverages retro-reflective technology to detect objects across a range of materials, including transparent substances and highly reflective surfaces. Its 8-LED transmission system enhances signal strength and reliability, ensuring consistent detection even under challenging lighting conditions. The sensor is engineered to identify minute defects such as cracks or misalignments on pallets and accurately capture leading edges in material webs. It also supports precise bottle detection and sorting by identifying object presence and position with high accuracy. This technology enables reliable operation in fast-paced production lines where objects move quickly and may be difficult to detect using conventional sensors.

Technical Characteristics

The WLG features a fixed detection height of 100 mm, utilizing transmission via 8 LEDs for optimal signal performance. It is capable of detecting objects as small as 6 mm at a distance of 0.4 meters when set to appropriate sensitivity levels. The sensor reliably detects both transparent and reflective surfaces due to its retro-reflective design. Detection accuracy is maintained across varying object types, ensuring consistent results in diverse industrial settings. No additional power supply or external components are required for operation, as the sensor functions with standard electrical connections.

Configuration and Integration

The WLG integrates seamlessly into existing automation systems through standard electrical interfaces. It requires no complex setup or calibration, making it easy to install in production lines. The sensor operates independently and can be configured using sensitivity settings to match specific detection requirements. Its simple design allows for quick deployment without the need for specialized tools or expertise. Integration with PLCs or control systems is straightforward due to its standard output signals, enabling real-time feedback on object presence or absence.

Operating Environment

The WLG operates reliably in industrial environments where temperature and humidity levels are within typical manufacturing conditions. It is designed for use in settings with moderate vibration and dust exposure, though it should not be exposed to excessive moisture or corrosive substances. The sensor performs consistently across a range of ambient temperatures and is suitable for both indoor and outdoor applications when protected from direct weather exposure. Its robust construction ensures long-term durability under standard industrial operating conditions.

Industrial Applications

The WLG is commonly used in applications requiring precise edge detection or defect identification, such as detecting damaged pallets, monitoring leading edges of material webs, and verifying bottle presence during sorting processes. Its ability to detect transparent objects and reflective surfaces makes it ideal for use in packaging, material handling, and quality control operations. The sensor’s high sensitivity allows it to identify small defects at a distance of 0.4 meters, ensuring consistent product quality across production lines. Typical use cases include pallet inspection, web edge detection, and bottle sorting where object size and transparency vary significantly.