SICK GL6-N4211 Photoelectric Sensor – Compact & Precise Detection

SICK GL6-N4211 Photoelectric Sensor – Reliable Retro-Reflective Detection in Compact Form

The SICK GL6-N4211 Photoelectric Sensor is a compact, retro-reflective detection unit designed to identify objects quickly and accurately across sensing ranges up to 6 m. Equipped with a dual-lens optical system and visible red PinPoint LED (650 nm), it ensures stable performance even with glossy or irregular targets. The lightweight rectangular housing with M8 connector enables simple installation in confined machine layouts. With its fast 1 kHz switching frequency and IP67 protection, the GL6-N4211 delivers dependable detection in demanding environments such as packaging lines, logistics conveyors, and component handling systems.

The GL6-N4211 excels in industrial automation where precise and consistent detection is essential. Its polarization filter and adjustable sensitivity allow accurate operation regardless of target color or reflectivity. Technicians can easily fine-tune performance using the visible status LEDs and the light/dark selector. A rapid response time under 1 ms supports real-time control in sorting, labeling, and counting processes. Built from durable ABS/PC materials with PMMA optics, the sensor withstands temperature fluctuations and vibration, maintaining long-term accuracy. Low power consumption and reliable electronic protection reduce downtime, making it a cost-effective, maintenance-friendly solution for continuous production systems.

Why SICK GL6-N4211?
Because the SICK GL6-N4211 blends compact design with precision sensing power. Its advanced dual-lens optics and PinPoint LED deliver pinpoint accuracy where space is limited. Built tough yet easy to install, it’s the go-to choice for engineers who need fast, stable detection in high-speed automation lines without sacrificing reliability or versatility.

What problem does it solve?
The GL6-N4211 eliminates false readings and missed detections caused by shiny, uneven, or varying-colored surfaces. It simplifies complex alignment tasks and ensures flawless part recognition even under challenging lighting or vibration. In short, it solves the challenge of reliable object detection in dynamic, space-constrained industrial environments.

Key Features & Specifications – SICK GL6-N4211: 1059631

Download SICK GL6-N4211 (1059631) Datasheet

Commercial Data – SICK GL6-N4211: 1059631

The Applications of SICK GL6-N4211 Photoelectric Sensor

1. Conveyor Line Product Detection
On high-speed conveyor systems, the SICK GL6-N4211 reliably identifies products of various shapes, colors, and materials. Its precise PinPoint LED beam and polarization filter minimize false readings caused by glossy or reflective packaging. With a 1 kHz switching frequency, it handles fast-moving items such as bottles, cartons, or components with ease. The compact rectangular design allows seamless installation in narrow conveyor layouts, while the rugged housing resists dust and vibration. This ensures consistent detection performance, reduced stoppages, and higher production throughput in continuous processing environments.

2. Labeling and Packaging Verification
In modern packaging lines, accurate label placement is critical for quality control. The GL6-N4211 detects labels and markings with high precision, even on shiny or transparent surfaces. Its dual-lens optical system maintains reliable sensing at different distances, while adjustable sensitivity allows fine-tuning for different label materials. The bright visible LED simplifies setup and alignment, saving time during changeovers. This sensor helps prevent mislabeling, minimizes manual inspection, and supports smoother operation in industries such as cosmetics, food packaging, and pharmaceuticals where precision and speed are vital.

3. Robotic Pick-and-Place Positioning
For robotic automation systems, fast and accurate feedback is essential. The GL6-N4211 provides rapid detection signals with a response time under 1 ms, ensuring the robot only moves when components are correctly positioned. Its compact build and IP67 enclosure allow operation in areas exposed to oil mist or vibration. By providing stable detection on reflective or variable surfaces, it enhances positioning accuracy and coordination between robots and controllers. The result is faster handling cycles and reduced mechanical errors in assembly, electronics manufacturing, and precision automation.

4. Pallet and Container Detection in Warehouses
In logistics and material-handling applications, the GL6-N4211 ensures dependable detection of pallets, boxes, and bins made from different materials. Its long sensing range of up to 6 meters allows monitoring large areas, while the polarization filter eliminates false triggers from shrink wraps or reflective film. The bright LED spot provides visible alignment, even in low-light zones. This makes it ideal for conveyor transfers, automated storage, and retrieval systems. By ensuring accurate pallet positioning and inventory movement, it helps maintain smooth workflow and prevents operational delays in warehouse automation.

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