This equipment utilizes frictional heat generated by rotating one plastic part against another stationary component under pressure to create a strong, permanent weld. A common application is joining the two halves of a plastic container.
The process offers several advantages including speed, efficiency, and the ability to join dissimilar plastics without the need for adhesives or other consumables. It emerged as a key joining technology in the mid-20th century, finding widespread use in various industries, contributing to the rise of high-volume, automated plastic part production.