HX420 Automatic Gathering Machine is a fully automatic binding equipment, that collects and gathers the paper sheet or book signatures in order, assembles them completely, and delivers. Compact design can be loaded from either side, it can be used either as a stand-alone machine or connected in-line with the book sewing machine or perfect binder. It adopts a modular combination method, each unit with three gathering stations, according to the factory scale and production requirements, it can be configured according to 3/6/9/12/15/18/21 gathering stations.