CTM33NLF29KEE00 Kollmorgen
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The Kollmorgen CTM33NLF29KEE00 is a stepper motor from the CT Stepper Motors series with a frame size of 34 and a three-stack length. It features a straight keyway shaft type, supports radial shaft loads up to 65 lbs at the shaft center, and handles axial shaft loads of 100 lbs in both directions. The motor has four lead connections, NEMA through hole mounting, and an insulation voltage rating of 340 VDC.
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Product Description:
The CTM33NLF29KEE00 is a hybrid stepper motor manufactured by Kollmorgen for the CT Stepper Motors series. It advances or holds its position in fixed step angles, allowing a motion controller to index conveyor flights, actuate valves, or align tooling without feedback. The motor belongs to the manufacturer’s Cool Torque family and provides high torque from a compact frame. It remains compatible with standard stepper drives used across industrial automation systems. Its enhanced design supports efficient operation in demanding motion applications where accurate incremental movement and holding capability are required.
The CTM windings are insulated for up to 340 VDC, permitting operation with high-voltage microstep drives that reduce phase current while sustaining torque. When driven in bipolar mode, the CTM variant develops 13.6 N-m of holding torque, which can support heavy rotary tables without a gearbox. The square body follows the NEMA Size 34 outline, allowing installation in many compatible mounting brackets. The front face has NEMA through holes that accept standard cap screws from either side of a mounting plate. Power is delivered through jacketed leads, and the stator phases have four electrical connections for straightforward wiring to common stepper amplifiers.
The motor is built around a three-stack magnetic core, which increases magnetic capacity for applications requiring high stiffness between movements. The straight keyway shaft accepts pulleys or couplings, while the rear end plate provides English-threaded holes for an encoder. The shaft supports a radial load of up to 65 lb at its center and an axial load of up to 100 lb in either direction. These load capacities help protect the bearings when belts are pretensioned or vertical loads are cantilevered. The motor belongs to the Cool Torque Maximum Series, which uses an enhanced lamination design to reduce copper loss and increase the available thermal surface area. This design allows the motor to maintain efficient operation while producing its rated output in high-torque positioning and holding applications.
