Frameless motors match demanding machine tool spindle uses

Parker has enhanced the design of its popular high-speed frameless servomotor series SKW. Suitable for single and multi-spindle machine tool applications up to 21kW, the motor neatly deploys inside the spindle. Supplied in kit form it simplifies mechanical design of the machine.

Among the many advantages over induction motors the revised SKW range features the use of cold PMAC (permanent magnet AC) technology. This means reduced heating in the bearings - so low dilation effect. In addition, an increased internal diameter means greater rigidity and capacity for bar stock handling in automatic (sliding head) lathes.

Despite the increase in internal diameter, the overall dimensions remain very compact. Multi-spindle machine tools in particular need motors with a small external diameter and a large hollow shaft for the bar or the tools (thus delivering greater productivity). For this reason, the SKW series has been designed as a tubular motor. The outcome means numerous advantages for the end user. For instance, not only does it mean a dedicated speed for each spindle, but better surface finish, shorter cycle time and longer tool life. These synchronous Parker SKW motors are also maintenance-free (direct drive), offer low noise levels (no gear or lever sounds), are compatible with third party drives (including Fanuc and Siemens) and are oil proof.

SKW motors deliver high efficiency (90-95 per cent) and are liquid cooled to optimise performance. Offering a speed range up to 12,000 rpm, the motors come in four sizes (with four lengths by size). Choices include constant power from 3 to 28 kW and low speed torque from 4 to 37Nm, with specific speed/torque requirements available on request.

Please visit www.parker.com to find out more about the high-speed frameless servomotor series SKW.

Parker Hannifin

Tachbrook Park Drive
Tachbrook Park
Warwick
CV34 6TU
UNITED KINGDOM

+44 (0)1926 317878

parker.uk@parker.com

www.parker.com/uk

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