Chuck

Overview

The 6 River Systems Chuck (now part of Shopify Logistics) is a collaborative mobile fulfilment robot designed to work alongside human pickers on the warehouse floor rather than replace them entirely. Chuck acts as an intelligent cart that guides workers through optimal pick routes, reducing walking time and decision fatigue while maintaining the flexibility of human-led picking. With a 272 kg payload capacity and an 8-hour runtime, Chuck is suited to full-shift operation in busy distribution environments.

Key Specifications

• Payload: 272 kg
• Runtime: 8 hours per charge
• Navigation: Autonomous with collaborative human-guidance model
• Interface: Touchscreen and light-based pick confirmation
• Deployment model: Scaled (subscription or enterprise licence)

Chuck uses a cloud-based routing engine to assign pick tasks, optimise wave planning, and coordinate multiple units across a facility simultaneously. The human picker follows Chuck's guidance rather than a paper pick list or handheld scanner, which reduces errors and training time significantly.

Use Cases

Chuck is best suited to high-SKU, moderate-to-high-volume fulfilment operations, including e-commerce, retail replenishment, and third-party logistics (3PL) warehouses. UK 3PL operators running multi-client sites have found the collaborative model particularly valuable because it does not require significant infrastructure investment or racking changes.

Integration with WMS platforms including Manhattan Associates, Blue Yonder, and SAP EWM is supported via standard APIs. The system scales linearly: adding more Chuck units increases pick throughput without proportional headcount increases.

Buying Used

Secondary market availability for Chuck units is very limited. Most deployments are structured as managed service agreements, meaning hardware ownership typically stays with 6 River Systems or Shopify Logistics. Independent resellers occasionally list units, but software licensing and cloud connectivity are tied to active service accounts, complicating second-hand purchases.

Alternatives to Consider

• Locus Robotics LocusBot Origin for a similar collaborative picking model
• 6am.city Corvus for European-native collaborative picking alternatives
• Zebra Technologies FetchCart for heavier transport tasks alongside collaborative picking