Mechanical Concentrate Mixers from Eriez® Hydroflow® eliminate the traditional manual fluid mixing methods that often result in imprecise concentration control. Plant operators at metalworking facilities can choose from the Eriez Drum Top Mixer and the Proportioner to ensure fluid gets neither too lean nor too rich. The durable, all-metal Drum Top Mixer is available in 3 and 10 GPM (11.3 and 37.8 LPM) versions, with mixing range adjustable from 2 percent to 10 percent. The compact, easy-to-use Venturi mixer jets water through the unit, creating a vacuum that siphons concentrate from the drum. The Eriez Proportioner comes in handy when more accurate and concentrated mixing is needed. The Proportioner — with an average flow rate of 5 GPM (19 LPM) — is a water-driven, positive displacement unit that dispenses coolant on demand at the desired concentration.