The Elfin-Ex from Huayan Robotics is an explosion-proof collaborative robot with national explosion protection certification, designed for hazardous environments. It uses a leak-compensated positive pressure explosion-proof system with ignition source medium isolation and multiple sealing structures, plus real-time monitoring of positive pressure gas with power-off protection. It has an IP66 protection rating and is used in petrochemical, painting, and service industries including automatic refueling.