Swiss-style machine line expands

An expanded line of Swiss-style machines offers three different multi-axis configurations aimed at applications requiring precise, high-speed production of small parts.

Manufactured by Mazak Corp. in Florence, Kentucky, the Syncrex series now includes 16 models and four machine sizes that accommodate maximum bar stock turning diameters of 20 mm, 25 mm, 32 mm and 38 mm. Each of these different-size machines comes in seven-, eight- and nine-axis configurations. Also available are Syncrex 9X models capable of full five-axis contouring when the b-axis tool post is used.

Syncrex 20 and 25 systems are traditional sliding-headstock machines with a ball spline-connected guide bushing and main spindle, said General Manager Kevin Bates. The 32 and 38, however, use a dual-drive system for the collet and guide bushing, making them convertible machines that can be run without a guide bushing.

When a single motor drives both the guide bushing and collet, “they’re synchronized through the ball spline drive, reducing vibration and giving better accuracy,” he said.

In addition, the machines produce less material waste than traditional Swiss lathes, said Syncrex Product Manager Leonard Lanute. The key, he noted, is the position of the collet.

In conventional Swiss machines, “the collet can only get so close to the back of the guide bushing, so you’re going to have a longer remnant,” he said. In Syncrex machines, however, “the front of the collet can get right to the back of the guide bushing, so we can seriously reduce the remnant” — possibly by as much as 6″, he said.

All Syncrex machines are constructed on Mazak’s high-damping composite casting. The HDCC, Bates said, is a solid-polymer composite base that provides a number of advantages over cast iron, including greater rigidity, better vibration-dampening characteristics and less thermal growth. The results are improved part quality, longer tool life and better surface finishes, according to Mazak.

The Syncrex Swiss-style machine line now includes 16 models with different bar stock capacities and axis configurations. Image courtesy of Mazak