AMR cross-belt sortation uses autonomous mobile robots fitted with a small powered conveyor belt mounted crosswise on top. Each robot carries one item to its assigned destination, then runs the belt to push the item sideways into a chute or bin. Unlike a fixed cross-belt loop sorter, the belt rides an independent robot with no track.

Key facts

•   Powered belt actively pushes items sideways off the robot

•   Each AMR carries one item, no fixed track or loop

•   tSortPost: up to 20 kg per load, 650mm grid or larger

•   t-Sort Mini handles items up to 5 lbs; t-Sort Plus up to 66 lbs

•   Full fleet throughput reaches 40,000 units per hour

•   Belt size customizable to item profile

How does an AMR cross-belt sorter work?

An AMR cross-belt sorter loads one item onto each robot at induction, where a scanner reads its barcode and assigns a destination. The robot navigates a floor grid to the correct divert point, then powers the belt mounted across its top to push the item sideways into the chute or bin. The robot returns to induction for the next item. Because the belt actively ejects the item rather than relying on gravity, a cross-belt handles small, light, and irregular items, including polybags, with precise placement into narrow chutes.

Cross-belt vs. tilt-tray vs. fixed loop

 

Where is AMR cross-belt sortation used?

•   E-commerce parcel and small-item sortation

•   Polybag and softpack fulfillment

•   Apparel, cosmetics, and mixed small goods

•   Pharmaceuticals and high-value small items

•   Returns and reverse logistics

•   Operations sorting to a high number of destinations

When is cross-belt better than tilt-tray?

A cross-belt uses a powered belt to eject items with controlled placement, which suits small, light, irregular, and bagged items and dense chute layouts. A tilt tray drops items by gravity, favoring flat, rigid, stackable goods and lower tray cost. On an AMR platform, both run on the same fleet, so the divert mechanism follows your item profile rather than being fixed at install.

Plan a cross-belt sortation system

HOJ engineers and integrates AMR cross-belt sortation as an independent integrator, specifying Tompkins Robotics tSort platforms in cross-belt or tilt-tray configuration to match your item profile and throughput. Talk to a sortation specialist.