The ULSROBOTICS PES-U (Passive Elastic System – Upper Limb) represents a fundamentally different approach to upper limb assistance. Where powered exoskeletons rely on motors, batteries, and electronics, the PES-U harnesses the physics of mechanical energy storage — using carefully engineered elastic structures to capture and return energy in sync with the user’s natural arm movements. The result is a featherlight 1.9kg exoskeleton that requires zero charging, zero maintenance of electronic components, and zero operational downtime — yet delivers meaningful 10kg of dual-arm support across 8 flexible degrees of freedom. Developed entirely in-house by ULSROBOTICS, the PES-U is purpose-built for industrial environments where workers are required to hold tools, components, or equipment at or above shoulder height for extended periods — a posture that is among the most damaging to long-term shoulder and arm health. By reducing overhead load by over 30%, the PES-U directly lowers the risk of rotator cuff injuries, shoulder impingement, and chronic arm fatigue, while simultaneously improving work quality and output efficiency.

Key Features

• No Charging Required – Fully passive mechanical design requires no battery, no motor, and no electronics — always ready, zero downtime
• Ultra-Lightweight 1.9kg – One of the lightest upper limb exoskeletons available; barely noticeable during extended wear
• 8 Flexible Degrees of Freedom – Comprehensive range of motion coverage for natural arm movement across overhead, lateral, and forward reach postures
• 10kg Dual-Arm Assistance – Meaningful bilateral arm support for sustained tool holding and overhead assembly tasks
• Reduces Load by 30%+ – Clinically meaningful reduction in upper limb burden for workers in elevated posture roles
• Mechanical Energy Storage Design – Proprietary elastic architecture captures and returns energy naturally in sync with arm movement
• Long-Duration Arm Fatigue Relief – Specifically engineered for tasks where sustained overhead posture causes progressive arm and shoulder fatigue
• No Maintenance of Electronic Components – Passive design eliminates battery replacement, charging cycles, and electronic servicing requirements
• Industrial Grade Durability – Built to withstand the demands of continuous use in factory, construction, and logistics environments

Use Cases

• Overhead assembly in automobile, aviation, and electronics manufacturing
• Industrial maintenance and installation requiring sustained arm elevation
• Construction and renovation work with overhead tool use
• Warehouse operations involving repetitive overhead reaching and placing
• Agricultural tasks requiring sustained arm elevation
• Any industrial role where prolonged overhead posture causes arm and shoulder fatigue

Key Specifications

Brand Background

ULSROBOTICS (傲鲨智能) is a leading Chinese exoskeleton robotics company dedicated to developing intelligent wearable exoskeleton systems for industrial, medical, and consumer applications. With a strong focus on proprietary AI software, self-developed drive systems, and ergonomic engineering, ULSROBOTICS products are trusted across manufacturing, logistics, firefighting, and rehabilitation sectors globally.