CH133C-11-2105 Kollmorgen
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The Kollmorgen CH133C-11-2105 is a direct drive rotary motor from the Cartridge DDR Motors series with a frame size of 350 mm and a pass-through, compression coupling, keyed shaft style. It delivers a rated power of 11.13 kW at 480 VAC, rated torque of 426 Nm, and a rated speed of 250 rpm. The motor has a peak torque of 1018 Nm, weighs 132 kg, and includes an ECN1313 encoder with 2048 periods.
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Product Description:
Kollmorgen’s Cartridge DDR Motors series incorporates frameless direct-drive technology that mounts directly to machine bearings. The CH133C-11-2105 is a unit with a 350 mm frame that weighs 132 kg and uses a pass-through keyed shaft with a compression coupling to lock onto the host shaft. As a cartridge-style motor, it eliminates the separate rotor hub and simplifies installation in indexing tables, printing cylinders, or rotary actuators where high torque and accurate low-speed operation are required in industrial automation.
With a three-phase 400/480 VAC supply, the stator can draw a peak current of 48.0 A, delivering a peak torque of 1018 Nm for rapid acceleration of heavy loads. Under continuous operating conditions at 480 VAC, the motor is rated for 11.13 kW of mechanical output while maintaining a synchronous speed of 250 rpm and producing 426 Nm of steady torque. A standstill torque of 504 Nm provides the holding capability when motion is locked. These electrical ratings allow the motor to work with medium-voltage servo drives and eliminate gearbox stages while still providing responsive indexing performance in material-forming lines and high-capacity conveyors.
Dynamic characteristics are influenced by the rotor inertia of 3020 kgcm², which supports smooth low-speed regulation and suppresses speed ripple in large-format machinery. During static holding, the phase windings draw 20.1 A, aligning with a torque constant of 25.4 Nm/A so current commands scale linearly with output torque. The 2048-period ECN1313 encoder supplies absolute position data for tight servo loops. Magnetic behavior is shaped by a winding inductance of 18 mH together with a resistance of 0.94 Ω; these parameters establish current rise time and affect thermal dissipation under cyclic loading.
