"for using i pails or drums, only metal shaft
Graco air operated agitators have an Atex approved air motor which has capability to adjust its speed by a needle valve on it. Graco agitators have various powered motors for various liquid viscosities, have cast iron or stainless steel shaft & impeller assemblies, are used for pails or drums which are open top or closed for 2"" bung mounting.
You can keep your liquids in an uniform format for your process by using Graco air operated agitators. "