Air shafts are used on many converting machines. An example of one of these machines is a slitting machine or slitter rewinder which is used to cut or slit large rolls of material into smaller rollers.
Air shaft is a machine part or shaft which tightens the core or roll on filling air. Air Shafts are of two types
1) Contains Inflatable Rubber tube inside also called Lug shafts.
2) Which contains bladder multiple outside also called Multi-tube Shaft .