b'Twin spindles are purchased with one thing in mind: maximum spindle utilization.Double Duty shops not go it alone on a twin-spin- needed to make it into a productive dle purchase, automated or not. solution.These are not commodity ma- He said its the job of machine last year, the 12,000-rpm HSK 63Achines, Carr said, and for goodtool partners to look closely at cus-twin-spindle machine comes withreasons. Some people think theytomer requirements.a servodriven, rotary-style palletcan easily manage their own inte- This means studying the man-changer with rotary table (a-axis)gration, their own engineering ef- ufacturingandengineeringre-and trunnion (a+c) versions available.forts. And in some cases, this isquirements, yes, but it also requires An open design allows the use of atrue. Yet twin spindles are a dif- studying the culture of the shop, front-mounted robot or an overheadferent animal. Things can get uglythe skill level of the people, and gantry loader. Carr said the machinewhen a shop buys a machine andmaking sure that we dont sell them is suitable for high-throughput ma- is unhappy a few months down thea piece of equipment they cant chining, with particular attentionroad because the decision-mak- adapt to, Carr said. This is true for paid to coolant flow, chip manage- ers there didnt fully understandany machine tool but even more so ment and 24/7 reliability. the application or accept the factwith complex machinery like twin-However, he recommends thatthat they didnt have the resourcesspindle machining centers.CTEAutomated material handling and a twin-spindle configuration complementone another as shown in this example from Doosan Machine Tools America.Doosan Machine Tools Americactemag.com/cteguide.com31Multispindle.indd 31 3/16/20 12:05 PM'