Songxing

Songxing, developed by Siasun Robot & Automation Co., Ltd. (新松机器人), is a full-size bipedal humanoid robot standing at 165 cm tall with 38 degrees of freedom overall, including 10 DoF per hand. Weighing 85 kg, it achieves a walking speed of 3 km/h and can carry a payload of approximately 5-8 kg per arm. Designed primarily for industrial research, demonstrations, controlled human-robot collaboration, exhibitions, and emerging applications in social services and family companionship, Songxing emphasizes stable locomotion, whole-body coordination, and practical utility over extreme agility. Architecturally, Songxing features an advanced bionic design with electric servo motors, harmonic/planetary gears, and a main structure of aluminum alloy and composites. Its anthropomorphic bionic joints in arms, waist, and legs are controlled via reinforcement learning and imitation learning algorithms, enabling collaborative movements that mimic human dexterity. Repeat positioning accuracy reaches ±0.05 mm, allowing precise grasping, storage, handling, sorting, and assembly of objects of various shapes and sizes. The platformized design supports customization and upgrades, with self-developed core components including joints, controllers, and underlying control systems for fine-grained atomic operations. On the AI front, Songxing integrates a top-level intelligent system powered by multimodal large models and deep learning for perception, cognition, and decision-making. Multimodal perception fuses data from LiDAR sensors, 3D cameras, vision systems, and other sensors to enable environmental awareness, obstacle avoidance, object recognition, and natural language interaction. This allows accurate understanding of user intentions, scene information fusion, and autonomous planning of optimal operation paths across scenarios. The robot runs on a Linux-based ROS environment with an industrial x86 CPU, optional NVIDIA GPU, Ethernet/Wi-Fi connectivity, IP54 ingress protection, and LLM integration for low-latency responses. Runtime per charge is about 3 hours. Real-world deployment history is nascent, focused on demonstrations at major events like the 2025 Beijing World Robot Conference, where it showcased cross-scenario tasks in production workshops. Siasun's embodied intelligence exhibition highlighted its potential in industrial manufacturing (e.g., supplementing traditional robots in lightweight operations), warehousing logistics, new retail, and service scenarios. As an early production/limited release model priced around $140,000, Songxing serves as a research and development platform, aligning with China's push for practical humanoid robotics. No widespread commercial deployments are reported as of late 2025, but its safe human collaboration (rated yes), predictability, and balance position it for structured industrial R&D and exhibitions. Future expansions target logistics pain points like e-commerce sorting and soft package handling, leveraging Siasun's composite robot heritage.