How Narrow Belt Sorters Work
Narrow belt sorters – also sometimes called NBS, very narrow belt sorters or strip belt sorters – are designed with multiple narrow belts that transport items. When an item approaches its designated divert, high friction divert wheels pop up between the belts to accurately propel product down the divert lane. Diverts can be configured on either side of the sorter, at either 90- or 30-degree angles to best suit the facility layout.
When the pop-up rollers are positioned at a 90-degree angle to the main belts, the product is moved off the sorter at a right angle causing a change in the product orientation. This configuration operates at speeds up to 90 cartons per minute.
Narrow belt sorters with 30 degree divert angles can operate at speeds up to 100 cartons per minute based on product size. This configuration does not alter product orientation.