Hospital AMRs: Aethon TUG and Moxi in Clinical Delivery

The Logistics Challenge in Healthcare Facilities

Hospital operations rely heavily on the internal movement of linens, medications, meals, and waste. Inefficient logistics lead to staff fatigue, longer wait times for patients, and increased operational costs. According to industry estimates, nursing staff spend a significant portion of their shift on non-clinical logistics tasks. Automated Mobile Robots (AMRs) offer a validated solution to this problem, moving beyond the concept phase into active clinical deployment. This article focuses on two primary players in the sector: Aethon’s TUG platform and Moxi by Teledyne.

Aethon TUG: The Established Standard

Aethon is widely recognized as the volume leader in hospital delivery robots. Unlike speculative concepts, the TUG platform has been shipping since 2007. As of recent industry reporting, over 10,000 TUG units have been deployed globally across thousands of facilities. The hardware is not a novelty; it is a dedicated logistics vehicle designed for high-density environments.

Hardware Specifications

The TUG platform comes in several configurations, including the TUG Classic and the TUG Express. Key specifications are consistent across units designed for clinical use:

• Load Capacity: Typically 500 kg (1,100 lbs) payload capacity, allowing for full carts of linens or heavy medication trays.
• Navigation: Utilizes SLAM (Simultaneous Localization and Mapping) technology combined with pre-mapped routes. The system does not require fixed infrastructure like magnetic tape or reflective beacons.
• Dimensions: Height is approximately 100 cm, width around 75 cm, allowing it to navigate standard hospital corridors and elevator doors.
• Power: Battery life typically supports 8-12 hours of operation, with automatic docking capabilities for charging.

In terms of deployment grade, Aethon falls into the "shipping hardware first" category. The system is not a pilot concept; it is a deployed fleet asset. The control software allows for remote monitoring and trip management, ensuring that if a robot encounters an obstacle, it does not block the corridor indefinitely. Instead, it waits or notifies staff for intervention.

Operational Reality

The TUG is primarily used for supply chain tasks. It moves boxes of IV fluids, food trays to patient floors, and linens to laundry. It does not typically interact directly with patients. This limitation is intentional. The hardware is designed for environmental durability rather than physical manipulation of patient items. The reliability comes from its ability to navigate busy, semi-unstructured environments without human intervention.

Moxi: Clinical Task Automation

Moxi represents a different tier of hospital automation. Developed by Berkshire Grey and later acquired by Teledyne Technologies, Moxi is an AMR with an integrated upper body arm. While Aethon moves objects, Moxi manipulates them. This distinction is critical when evaluating claims of "autonomy."

Hardware Specifications

Moxi is an autonomous mobile base equipped with a dual-arm robotic system. It differs significantly from the TUG in functionality:

• Arm Kinematics: The system features a 6-degree-of-freedom (DOF) arm designed for reaching and grasping. It can open doors, press elevator buttons, and retrieve items from shelves.
• Navigation: Similar to Aethon, it uses a 360-degree LiDAR system and stereo vision for localization.
• Payload: While capable of lifting approximately 22 kg (50 lbs) at full extension, its primary use case is handling laundry, supplies, and medication carts.

Deployment data indicates Moxi is currently shipping units, but the volume is lower than Aethon’s TUG. This reflects the complexity of the hardware. The integration of an arm introduces more points of failure and requires more rigorous calibration. Moxi’s use cases often focus on "room service" tasks, such as delivering laundry to patient rooms or restocking nurse stations.

Market Positioning

Moxi is positioned as a clinical assistant rather than a logistics mover. The hardware allows for interaction with the environment, not just traversal of it. However, this capability comes with a higher cost of ownership. The system requires more maintenance due to the moving mechanical parts of the arm. For hospitals looking for pure logistics, the TUG remains the more common selection. For those needing item retrieval, Moxi is the primary option.

India Market Context

For Indian healthcare facilities, the adoption of AMRs is constrained by import regulations and capital expenditure (CapEx) limits. Both Aethon and Moxi are primarily US-based manufacturers with limited direct presence in India. Availability is typically through authorized distributors or system integrators.

Availability and Import Regulations

Currently, there is no direct "off-the-shelf" availability for these units within India that guarantees local service support for all regions. Hospitals considering these systems must engage with specialized medical logistics vendors. The regulatory landscape involves two primary hurdles:

• Customs Duties: Imported robotic systems attract a Basic Customs Duty (BCD) of 10% to 25% depending on the classification, plus a 5% Social Welfare Surcharge. On top of this, Integrated GST (IGST) of 18% applies.
• CDSCO Clearance: If the robot is used for "clinical" tasks involving patient interaction, it may require clearance from the Central Drugs Standard Control Organisation (CDSCO), particularly if it carries medical devices.

Approximate INR Pricing

Grounded estimates for landed costs in India, based on global pricing converted to INR and accounting for import duties, are as follows. These figures should be treated as estimates for CapEx planning.

• Aethon TUG: Global pricing ranges from $50,000 to $80,000 per unit. With Indian import duties and taxes, the landed cost is estimated between INR 55 Lakhs and INR 85 Lakhs per unit.
• Moxi Robot: Global pricing is estimated between $100,000 and $150,000 per unit. With Indian import duties and taxes, the landed cost is estimated between INR 1.1 Crores and INR 1.6 Crores per unit.

These costs do not include the cost of software licensing, maintenance contracts, or facility modifications required for navigation (such as Wi-Fi upgrades). For Indian public hospitals operating under strict budget caps, these figures present a significant barrier. Private tier-1 hospitals in metros like Mumbai or Delhi are the primary targets for this hardware.

Safety and Integration

The integration of AMRs into hospital workflows requires careful safety planning. The robots must operate alongside humans, including patients, doctors, and nurses who may be walking unpredictably.

Obstacle Avoidance

Both TUG and Moxi utilize safety layers that go beyond standard collision avoidance. They employ emergency stop buttons and software-defined geofencing. If a robot detects an obstruction it cannot resolve, it halts and alerts the control center. In high-traffic areas, speed is often throttled to less than 1.5 m/s to ensure patient safety.

Infection Control

In the post-pandemic landscape, surface cleaning is a critical feature. Both manufacturers design surfaces that are wipeable and non-porous. However, the robots themselves require cleaning. Aethon recommends using hospital-grade disinfectants on the chassis. This adds a layer of operational time for the nursing staff.

Conclusion

The hospital AMR market has moved past the hype cycle for basic logistics. Aethon’s TUG represents the shipping hardware standard, with proven deployment data in thousands of hospitals globally. Moxi offers advanced manipulation capabilities but at a higher price point and complexity. For India, the barrier is not technology but cost and regulatory clarity.

Hospitals evaluating these systems should prioritize pilot deployments over full-scale rollout. The hardware is available, but the ROI depends on the specific volume of logistics tasks. In India, until domestic manufacturing reduces the landed cost, these systems remain a premium investment for large private healthcare providers.