Choosing a suitable motor for your IBC mixers depends on the application they are being used for, the viscosity of the fluids being blended and the speed at which they need to be mixed. Electric motors typically come in gear driven options, for higher viscosities, or direct driven options for fluids with low viscosity. Electric motors come with optional Variable Speed Drives to control the speed of the mixing process. Pneumatic, or air-driven motors, are a popular option for high-speed, low-viscosity applications, or environments with gas, vapours, dust or other combustible materials where sparks from electric motors would pose a fire risk. For mixing volatile fluids, or for environments where vapours may be emitted from the mixing process, special explosion-proof motors are available.