Product Description:

The K33HLHM-LNK-NS-00 is a stepper motor produced by Pacific Scientific within the K PowerPac Motors series. The unit uses a NEMA 34 frame and serves open-loop positioning in packaging machines, indexing tables, and handling axes. Its laminated rotor, single shaft with a straight key, and lack of a shaft seal simplify coupling while avoiding drag. Power conductors enter through a 1/2-in. NPSC conduit thread to a splash-proof terminal board, a connection style that allows quick cable replacement and supports straightforward routing inside machine enclosures. The terminal-board arrangement also suits fixed industrial wiring where conduit entry is preferred over molded connectors. No encoder is fitted, so the motor remains an open-loop device controlled only by command pulses.

At stall, the motor can hold 15.6 Nm. This static torque comes from three stacks, standard windings, and enhanced SIGMAX construction, which concentrates flux and reduces detent ripple. Each pulse advances the rotor by 1.8°, and cumulative position error stays within ±1.5%, supporting repeatable indexing of conveyor flights or rotary tables. The 3.38 in. square frame matches NEMA 34 bolt circles, and the heavy-duty flange supports rigid mounting. The winding insulation system is rated for 340 Vdc. A 4-lead parallel connection allows higher current for fast acceleration while keeping copper losses manageable, and it presents lower resistance than comparable series wiring.

The overall body length is 171 mm, permitting installation in confined panels and other space-limited machine sections. The compact length also helps when the motor must fit beside guards, couplings, or gearbox adapters in dense layouts. Continuous duty is allowed from -20 °C to +40 °C without derating, which covers typical factory floors and cold-storage areas. When tested at 500 V, the windings show 100 megohms of insulation resistance, supporting stable dielectric performance. This combination of temperature tolerance and insulation strength helps the motor operate reliably when ambient humidity rises or power-bus transients occur during machine startup.