YUNCHI S2

Yunchi S2

Indoor low-profile single-bay delivery robot

50LLarge cargo bay
20kgTypical payload
6h+Typical operating time
3D SLAMFusion navigation

Crosses thresholds, rides the lift

Its low body crosses lift thresholds smoothly and handles boarding, turning and multi-floor travel in tight spaces.

Automatic lid and interior records

The lid closes automatically, while a 720P UVC camera and interior lighting record the bay before and after pickup.

Cloud task scheduling

Reports task status and offers log interfaces, multi-task queues and fleet-scheduling extensions.

Site integration

Elevators, access control, QR codes, property platforms, order systems and remote takeover can be integrated per project.

Docks on its own, keeps going

When a task ends it returns to its charging point and docks precisely on the rear contacts, then continues once charged.

Fleets stagger, then move together

Several S2 units share a task queue, positions and operating status, staggering by priority and covering different delivery zones.

About 50 L of flexible cargo space

A wide opening and tidy interior take document boxes, small parcels and everyday supplies.

Powered lid

The single-piece rear-hinged lid opens 70-90° for loading, handover and pickup.

3D fusion navigation

Covers mapping, localisation, path planning and autonomous movement through complex buildings.

Low-level sensing, layered protection

Forward vision, low-blind-spot sensing and fall protection work together to stop safely at the edge of a step.

Turns easily in tight spaces

Four-wheel differential drive turns in place, suiting corridors and lift lobbies.

Dynamic obstacle avoidance

Replans a safe route around cleaning carts and temporary obstacles.

8-inch touchscreen

The top touchscreen shows task status and works with the front camera, LED matrix and audio.

Access-control integration for automatic passage

Access-control devices follow task permissions, so fewer cross-zone deliveries need a person to help.

Turnstile integration, precise passage

Recognises open lanes and keeps a safe distance through turnstiles and narrow passages.

Specifications

Specifications describe the standard configuration and are refined over time to balance stable operation with site-specific needs.

DimensionsApproximately 860 x 580 x 690 mm
Payload and cargo bay20 kg typical, 25 kg rated distributed load; bay approximately 500 x 380 x 300 mm, about 50 L
Speed range0.3-1.3 m/s recommended, never above 1.5 m/s
Battery and charging8S LiFePO4, 25.6 V 30 Ah; rear contact dock, 29.2 V 8 A CC/CV
Compute platformJetson Orin Nano Super 8 GB with 128 GB storage; optional RK3588 industrial computer
Perception and safety3D high-precision lidar, forward wide-angle RGB, low-blind-spot modules, fall sensors, emergency stop, safety edges and a PLC safety chain
DriveFour-wheel hub-motor differential drive with 24 V brushless motors and in-place turning
RuntimeMore than 6 h of typical operation, with low-battery return and task resumption
Interaction8-inch 1280 x 800 touchscreen, front LED matrix, microphones and speakers
Cargo bayPowered lid opening 70-90°; 720P interior status camera
Software platformROS 2 / Nav2 for mapping, localisation, path planning, dynamic obstacle avoidance, a task state machine and OTA updates
Network and interfacesWi-Fi with optional 4G/5G; gigabit Ethernet, USB, CAN, RS485 and safety I/O
Site integrationCloud scheduling with optional elevator, access-control, turnstile and call-terminal integration
EnvironmentIndoor and covered outdoor level surfaces; operating from 0 °C to 40 °C