Spindles & Rotary Tooling

Repair and remanufacturing services bring new life to damaged spindles.

This brief video from NSK America Corp. shows off the company's new iSpeed5 high-speed electric system, which is said to be capable of running continuously at up to 80,000 rpm using an external controller.

NSK America Corp. offers a three-minute video overview of its HES electric spindle series, which is said to enable conventional milling machines and machining centers to perform high-speed machining, small diameter drilling, and milling with good surface finishes.

High-speed electric spindles provide the accuracy, rpm and torque required for peak performance of microtools.

When considering options for speed, NSK America Corp. and OSG USA Inc. teamed up to highlight the benefits of proper speed applied to high-quality tooling. For the project, they machined their respective company logos onto a coin to showcase the intricate geometries and engravings that are possible with microtooling.

The patented spindle technology ensures continuous high precision. By its design, the cutting tool shank serves as the spindle shaft. As the result, the dynamic run-out is 4 microns or better. Bearings can easily be replaced by the customer with each cutting tool change.

The Series 22 combines both high-speed and high-precision processing for complete production of even large high-precision components. Featuring two workpiece-changing table variants, part capacities are generous - the 4-axis trunnion plate version handles 680 mm x 1,330 mm dia., up to 600 kg; and the twin-spindle 5-axis version handles 2 x 599 mm x 340 mm dia., up to 150 kg.n

Easily adaptable to the spindle of existing CNC machines, the SpinJet provides instant enhancements in machining performance using small diameter cutting tools. No additional machine purchase or modifications are required: the SpinJet utilizes the machine's existing through-spindle coolant supply as a pressurized power source to drive the internal turbine for cutting tool rotation, eliminating the cost and nuisances of external air or electric power supplies.

The iSpeed5 is a 60,000 or 80,000 RPM, 350 Watt, Brushless DC Electric System that eliminates the need for any operator intervention by using a special designed connection under that machine spindle that can prevent coolant, chips, dust and other machining debris from contaminating the stop block.

To optimize part transfer, independent right spindle guideways on lower turrets minimize the distance between the spindles at 11.8" (300 mm). For highest processing flexibility, a single or twin lower turret design is offered with overlapping travels and Y-Axis box guideways are standard.

INDEX has announced the launch of its next generation MS32-6 multiple-spindle automatic lathe. This newest version of the six-spindle machine brings the benefits of multispindle technology to a broader range of applications thanks to a flexible tool slide platform that greatly reduces changeover times.

Absolute Machine Tools partner PCI SCEMM (a Tongtai company) has introduced the e-Spindle, a new electro-spindle that integrates sensors and actuators to monitor cutting processes and adjust parameters to optimize tool life and workpiece quality.n