The Herrmann Converter A-KHS20-S-IP65-L-SHF is a 20 kHz industrial ultrasonic converter / transducer designed to convert high-frequency electrical energy into precise mechanical ultrasonic vibrations for use in ultrasonic welding and similar applications. It is built for rugged industrial environments with an IP65 protection rating, making it resistant to dust and low-pressure water jets — ideal for factory floor use.