Dry Grinding Attritors

Union Process has produced a pair of dry grinding attritors for a high-tech advanced materials company. The 30SD and 50SD attritors will work in tandem for this customer with one unit milling a dry powder for nano-sized particle reduction and then transferring the material to the other unit for complete and thorough dispersion and blending in a second stage wet process. The dry powder material created in the 30SD is transferred via dry powder pump into the 50SD for this two-stage process. Both attritors include a one-piece stainless steel tank cover with Meco shaft and a variable frequency drive that is housed in a NEMA 4X/12 wash down duty enclosure. An LCD operator interface module displays agitator RPM, motor AMPS, and motor HP being used. The 50SD is powered by a 75-HP, TEFC inverter-duty motor, while the 30SD has a 40 HP motor. The mills are also equipped with a specially designed process control timer package per the customer's request, which includes a process run timer, temperature warning and cut-off switch, as well as cooling water flow sensors.
Union Process Inc., Akron, OH 330-929-3333 www.unionprocess.com

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