Top-side reading on a tray sorter

For tray sorters used in logistics centers and warehouses, accurately reading barcodes from the top of items being conveyed at high speeds is key to improving throughput. However, reading errors often occur due to light reflection from vinyl packaging, wrinkled labels, or item misalignment, leading to sorting mistakes and line stoppages.

KEYENCE's ST Series scan tunnel system solves these challenges in logistics operations. Its overwhelmingly wide field of view allows a single unit to cover a large area of the conveyor, ensuring stable reading even with large trays or inconsistently placed items. This eliminates the need to install multiple barcode readers, leading to cost reduction and space savings.

Furthermore, it excels at reading codes on fast-moving objects, and its unique algorithm instantly decodes challenging codes through vinyl and codes with poor print quality. By maintaining a high reading rate, it dramatically improves the level of automation in the sorting process. The ST Series is a solution that maximizes the accuracy and speed of top-side reading on tray sorters, contributing significantly to the productivity of the entire warehouse.