High Speed Swiss Turning For Small-Diameter Parts

Marubeni Citizen-Cincom, Inc. has expanded its R-series line of turning centers designed for machining small-diameter parts. The Cincom R07 is compact with a rotary guide bushing unit developed exclusively for high speed precision machining.

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Marubeni Citizen-Cincom, Inc. has expanded its R-series line of turning centers designed for machining small-diameter parts. The Cincom R07 is compact with a rotary guide bushing unit developed exclusively for high speed precision machining. With the rotary guide bushing, the machine can cut at spindle speeds up to 12,000 rpm. (The subspindle delivers 10,000 rpm.) The machine accepts material up to 7 mm in diameter.

The R-series machines use linear motors to drive the slide and tool posts, making for fast part processing with quick response and quiet operation. It also eliminates thermal distortion, according to the company. A scale feedback control system is used with all axes. Cincom calls it the perfect configuration for machining small, high precision parts.

The machine's chuck can be opened and closed while the spindle is running at high speed. There's no need to wait for the spindle to slow down. This feature reduces the non-cutting idle time waiting for the spindle to stop and then get back to rotating speed. Use of two independent tool posts on the machine increases operation efficiency, eliminated idle time that might otherwise be required for a tool change.

An optional ALPS automatic bar loader is available for the R-series machines. This bar loader is specifically designed to grasp and feed small, wire-like bars into the machine. The R-series machines also come with an optional vacuum-type part removal system and carousel workpiece separator designed for small-diameter part removal.

The machine's gang tool post accepts rotary tools. This allows small-diameter parts requiring complex machining such as polygon turning and end face drilling to be machined easily.