SICK GRL18-P2457 Photoelectric Retro-Reflective Sensor

SICK GRL18-P2457 Photoelectric Retro-Reflective Sensor – Long-Range, High-Stability Detection

The SICK GRL18-P2457 photoelectric retro-reflective sensor is built for applications that demand long sensing distances and consistent object detection. It uses a refined dual-lens design together with a sharp red LED light, allowing it to detect targets at ranges up to 7.2 meters with dependable stability. Its compact M18 cylindrical housing makes installation straightforward across many machine layouts, while the rugged IP67 build protects it from dust, splashes, and tough industrial conditions. With its fast sub-millisecond response, complementary PNP outputs, and quick sensitivity adjustment, the GRL18-P2457 is well-suited for conveyor detection, packaging lines, and general automation tasks.

The GRL18-P2457 is designed to improve detection reliability in demanding environments by offering a long, stable operating range and clear visual alignment. Its bright 650 nm light spot simplifies setup even across extended distances, reducing time spent on adjustments. A high switching frequency of 1,000 Hz ensures the sensor reacts quickly to fast-moving items, preventing missed detections. Its ABS housing and durable PMMA optics resist moisture, oil exposure, and temperature shifts, enabling consistent field performance. Operators can easily fine-tune the sensitivity using the built-in potentiometer, helping the sensor maintain accuracy when detecting shiny, uneven, or low-contrast objects.

Why SICK GRL18-P2457?

The SICK GRL18-P2457 stands out because it delivers long-range, pinpoint detection in a compact, easy-mount M18 design. Its bright red optical beam and fast response help machines react instantly, even in demanding environments. Built with rugged materials and simple sensitivity tuning, it offers dependable, installation-friendly performance that keeps automation stable, accurate, and running at full efficiency.

What Problem Does It Solve?

The GRL18-P2457 solves the challenge of detecting objects consistently over long distances, especially where reflections, varying surfaces, or fast-moving items cause other sensors to struggle. It ensures stable triggering across wide ranges, reduces misalignment issues, and minimizes downtime from false signals. This makes it ideal for conveyors, packaging lines, and industrial processes that cannot afford detection errors.

Key Features & Specifications – SICK GRL18-P2457: 1076981

Commercial Information – SICK GRL18-P2457

The Applications of the SICK GRL18-P2457

1. High-Speed Conveyor Detection for Packaging Lines

Packaging lines move products rapidly, and many items differ in shape, reflectiveness, and spacing. The GRL18-P2457 is well-suited for this environment because its long optical reach and bright red light help maintain alignment even when conveyors shake or shift slightly. Operators often position it at checkpoints where boxes must be counted, spaced, or verified before sealing. Its quick reaction time ensures no item slips through undetected, even when the flow becomes dense. The rugged housing tolerates dust from cardboard, brief splashes from cleaning routines, and vibration from machinery, allowing stable performance throughout long production cycles with minimal readjustment.

2. Pallet and Container Positioning in Automated Warehousing

Automated warehouses rely heavily on accurate detection to move pallets and storage totes through transfer points. Surfaces of these loads can be uneven, scratched, or shiny, which can confuse basic sensors. The GRL18-P2457, with its enhanced retro-reflective design, offers reliable detection even when the target varies in color or texture. Its extended range means it can supervise wide conveyor lanes or pallet tracks from a safe mounting distance. Warehousing environments often experience changing temperatures and occasional moisture, and the sensor’s sealed construction maintains dependable output signals under these conditions. This helps sorting systems, lifts, and conveyors operate smoothly without unnecessary stoppages.

3. Bottle and Container Monitoring in Beverage Production

Beverage lines move at high speed, and bottles can be clear, glossy, or tightly packed together. The GRL18-P2457 is often used to monitor bottle flow because its visible red beam makes long-distance alignment simple, even when installed across large machinery frames. The fast switching ability allows it to capture narrow gaps between bottles, ensuring accurate timing for filling, capping, or labeling operations. Plants that require routine cleaning benefit from its sealed and robust build, which continues to function after exposure to humidity or water sprays. This consistent detection helps maintain the synchronized rhythm required for high-output beverage production.

4. Parcel Sensing on Sorting Chutes and Diverters

Distribution centers need precise detection to guide parcels to the correct chute or sorting lane. Parcels vary widely—soft envelopes, reflective plastics, and odd-shaped packages all appear on the same belt. The GRL18-P2457 handles these variations due to its stable operating distance and strong optical signal. Mounted before a diverter, it provides reliable confirmation of parcel position so the routing mechanism activates at the right moment. Its rapid response ensures correct timing even at high belt speeds. The sensor’s sturdy construction withstands long hours of vibration, dust from packaging materials, and frequent mechanical movement, supporting uninterrupted sorting performance.

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