... Automatic Ultrasonic lens Cleaning and Hard Coating Machine1) Functions: cleaning, drying,hard coating2) Processes: Loading, ultrasonic cleaning,ultrasonic D ... pre-cooling, hard coating, drying,unloading3) Applications: cleaning and hardening optical lenses or glass 4) Main assembly ... cooling and drying system, air filtration system, automatic cleaning drying and hard coating ,automatic level control, ...