Product Description:

The K42HLHN-LNK-NS-01 is a stepper motor from Pacific Scientific within the K PowerPac Motors series. Designed for open-loop positioning tasks in industrial automation, it advances a load by a fixed increment each time the drive issues a pulse, eliminating the need for feedback in many material-handling and indexing systems. The motor uses SIGMAX enhanced construction to raise torque density, and its heavy-duty NEMA mounting flanges match NEMA 42 dimensional standards. A splash-proof conduit entry routes field wiring to the internal terminal board, supporting installation in washdown enclosures. This operating method suits indexing tables, feeders, and transfer mechanisms that depend on repeatable pulse-count motion rather than closed-loop servo correction.

Its NEMA 42 frame has a 4.325 in. square frame outline, and the overall body length is 150 mm, giving a compact package for retrofit into existing equipment. The motor produces 28.2 Nm of holding torque from a standard winding that uses a 4-lead parallel connection, so full-step and half-step drive modes can be selected without rewiring. A 1.8° step angle yields 200 full steps per revolution, while cumulative position error remains within ±1.5%. The straight-key, single-ended shaft simplifies coupling to timing pulleys or gearheads, and the two-stack magnetic circuit supports consistent incremental motion.

The 150 mm housing carries a shaft seal, keeping coolant and oil spray away from the bearings. The conduit entry is tapped for a 1/2 in. NPSC pipe thread, which helps protect the splash-proof power path to the terminal board. Insulation resistance is 100 Megohms, and the insulation system supports operation up to 340 Vdc. The motor can operate in ambient temperatures from -20 °C to +40 °C, and its two-stack design, standard winding, and lack of an encoder suit motion axes where simple pulse-count control is acceptable.