Sullivan Palatek, a US-based manufacturer of air compressors, has taken delivery of a new TG350E CNC helical rotor grinding machine from UK-based rotor milling and grinding machine tool manufacturer, PTG Holroyd.

Helping double Sullivan Palatek’s rotary screw compressor manufacturing capability, the TG350E joins a previous-generation PTG Holroyd TG350 rotor grinder and a PTG Holroyd 3EX-R rotor milling machine, both of which have been in reliable daily operation at the air compressor manufacturer’s production facility in Michigan City, Indiana, since 2009.Together, the three PTG Holroyd machines will manufacture helical rotors in a range of diameters from both Dura-Bar and cold-rolled steel.

With plans to increase the size of its Michigan City manufacturing facility by 50%, and an order book that has almost doubled in size since 2023, Sullivan Palatek will be making full use of its new TG350E rotor grinding machine as well as its older PTG Holroyd TG350 and 3EX-R models.

“As finish-grinding each compressor rotor typically takes twice as long as the milling process, having two rotor grinders in operation will increase our productivity considerably,” says Sullivan Palatek’s director of plant operations Scott Newcomb. “With the two PTG Holroyd rotor grinding machines, we’ll also be able to manufacture both male and female rotors simultaneously, something that will further boost our efficiency.”

He continues: “To help further streamline our rotor manufacturing processes, PTG Holroyd will also be upgrading the CNC on our older TG350 to the latest standards. We have a great relationship with PTG Holroyd. They provide the highest levels of service and support, and will always do whatever it takes to get the job done.”

More information www.holroyd.com