Spindle uses built-in motor

March 23, 2006
Packing a motor and machining spindle in one unit lets engineers at Weiss GmbH in Germany eliminate couplings, belts, and gearboxes.

Edited

Packing a motor and machining spindle in one unit lets engineers at Weiss GmbH (www.weissgmbh.de/home.php?lang=en), in Germany eliminate couplings, belts, and gearboxes. It also lets them cut back on spindle inertia and increase acceleration and deceleration times. The lack of drive-traverse forces makes the spindles accurate, thanks to smooth, precise spindle motion even at low speeds. The units are compact, lightweight, and have high power densities. Motors can be synchronous or asynchronous, and they can be combined with servodrives or inverters.

On milling spindles, power ranges from 6 to 150 kW, speeds vary from 3,000 to 60,000 rpm, and they can be equipped with ceramic, 100Cr, or CronidurR30 bearings. Turning spindles have torque to 918 Nm and speed to 12,000 rpm.

Sponsored Recommendations

April 16, 2025
Clean. Compact. Less heat.
April 16, 2025
SEW-EURODRIVE Introduces DR2C motor, IE5 Ultra-Premium Efficiency Motor
March 31, 2025
Unlike passive products - made of simple carbon springs - the bionic prostheses developed by Revival Bionics are propulsive, equipped with a motor and an artificial Achilles tendon...
March 31, 2025
Electric drives are a key technology for the performance of machines, robots, and power tools. Download this guide for an introduction to high-quality mechatronic drive systems...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!