SKW Series

Frameless Spindle Servo Motors

SKW-Series frameless spindle servo motor kits are designed for integration in the mechanics of multi-spindle applications.
They offer constant torque capabilities over a wide speed range, 400VAC windings, power ratings to 21kW and speeds to 12000 min-1.

SK motors are compact and highly dynamic permanent magnet synchronous servo motors for spindle applications up to 20 kW that offer customer better surface finish, shorter cycle time and longer tool life. Delivered as separate components to be integrated into the mechanical structure of the machine, SK motors offer constant torque capabilities over a wide speed range.


Markets:
• Machine Tools

Features/Benefits:
• Permanent magnet synchronous motor kit
• Parker SK Series Kit Spindle Motors include
- a rotor with permanent magnets which can, on request, be mounted on customer's shaft
- a wound stator which can, on request, be designed with a cooling jacket or integrated into customer's mechanics

• Kit solution leading to simplified mechanical designs
• High dynamic performance and power density
- increased productivity and to reduced size compared to induction motors

• Cold permanent magnet technology
- reduced heating in the bearings compared to induction motors, no dilatation effect

• Increased internal diameter compared to other solutions
- increased rigidity and greater capacity for bar stock handling in automatic lathes

• Compatibility with cost effective sensorless drives from Parker
• Simple, light and compact machine design
• Increase reliability and reduced maintenance

Applications:
• Tooling Machines
• Multi Spindle Lathes
FRAME SIZE 73mm
82mm
91mm
96mm
CONTINUOUS POWER RANGE 2.0 ... 21 kW (water cooled)
CONTINUOUS TORQUE (NM) 3.5 ... 36 (water cooled)
CONTINUOUS TORQUE (IN-LBS) 31 ... 318 (water cooled)
PEAK TORQUE (NM) 8.2 ... 70 (water cooled)
PEAK TORQUE (IN-LBS) 72 ... 620 (water cooled)
RATED SPEED (RPM) 6000 ... 12000
INPUT SUPPLY VOLTAGE 400-480VAC
MOTOR POLE COUNT 10
FEEDBACK DEVICE Without Sensor
PARKER DRIVE COMPATIBILITY AC890
AC650S
AC30V
CERTIFICATES CE marked
IP RATING
IP00
HOLDING BRAKE No
COOLING METHOD Water Cooled (standard)
Air-Cooled / Natural Convection (on request)
SHAFT TYPE Hollow Shaft (ID: 35 - 60mm)