Air-Powered Spindles Enable 50,000-rpm Milling
Eastec 2017: Air Turbine Spindles’ new 50,000-rpm 660 series is said to dramatically reduce cycle time and machine spindle wear in applications ranging from micromachining to heavy-duty milling in tool steel, titanium, ceramics or Inconel.
Air Turbine Spindles’ new 50,000-rpm 660 series is said to dramatically reduce cycle time and machine spindle wear in applications ranging from micromachining to heavy-duty milling in tool steel, titanium, ceramics or Inconel. Constant speed is maintained at 50,000 rpm, with power ranging to 0.94 hp, in order to achieve true trochoidal programming at high speed. For more power, the company offers the 1.60-hp, double-turbine 660X, which keeps speed close to rated 50,000 rpm to optimize cutting tool performance and surface quality.
These spindles have only two moving parts: the turbine and the quadruple air-cooled angular contact bearings. The resulting lack of heat and vibration enables operators to mill, drill or finish faster and more cleanly with no duty cycle or maintenance for 1,000 hours, the company says. The spindles connect to 90-psi dry, clean air to mill with accuracy of 2 microns.
Related Content
-
Understanding Swiss-Type Machining
Once seen as a specialty machine tool, the CNC Swiss-type is increasingly being used in shops that are full of more conventional CNC machines. For the newcomer to Swiss-type machining, here is what the learning curve is like.
-
Choosing Your Carbide Grade: A Guide
Without an international standard for designating carbide grades or application ranges, users must rely on relative judgments and background knowledge for success.
-
Volumetric Accuracy Is Key to Machining James Webb Telescope
To meet the extreme tolerance of the telescope’s beryllium mirrors, the manufacturer had to rely on stable horizontal machining centers with a high degree of consistency volumetric accuracy.