There are several types of ultrasonic welding systems available, including:

1. Benchtop ultrasonic welders: These are small, compact systems that are designed for use in laboratory or low-volume production settings. They are typically used to weld small or delicate parts and can be operated manually or with automated controls.
2. Handheld ultrasonic welders: These are portable systems that are designed for use in field applications or in situations where parts cannot be easily moved to a stationary welding machine. They are typically used to weld small or medium-sized parts and are operated manually.
3. Automated ultrasonic welding systems: These are larger, more complex systems that are designed for use in high-volume production settings. They are typically fully automated and can be customized to meet specific production requirements. They are used to weld a wide range of part sizes and geometries.
4. Rotary ultrasonic welding systems: These are specialized systems that are designed for welding circular or tubular parts, such as medical devices or automotive components. They use a rotating horn to weld the parts, which allows for greater precision and control.
5. Ultrasonic cutting systems: These are specialized systems that are designed for cutting and trimming plastic parts using ultrasonic vibrations. They are often used in conjunction with ultrasonic welding systems to produce finished parts with precise edges and shapes.

Overall, the type of ultrasonic welding system that is best suited for a particular application will depend on factors such as the size and geometry of the parts being welded, the production volume, and the level of automation required.