Product Description:

The K33HCHJ-LNK-NS-00 is a stepper motor manufactured by Pacific Scientific as part of the K PowerPac Motors series. It advances a fixed mechanical increment with every control pulse, which makes it suitable for indexing, electronic gearing, and table-positioning tasks in industrial automation. Its square frame size fits standard powertrain layouts, and the front flange supports direct coupling to gearboxes, lead screws, or timing-belt drives without additional adapters. The lack of an internal encoder keeps wiring simpler when open-loop operation is acceptable and separate feedback is not required.

The motor provides a holding torque of 15.6 Nm in a NEMA 34 frame that measures 3.38 inches square across the mounting face. Each electrical step advances the rotor by 1.8°, and total positioning error at any step is limited to ±1.5%, which supports repeatable low-speed moves. Power is supplied through a 4-lead parallel winding set with a standard coil style, which minimizes inductance for stronger mid-range torque. The insulation system is verified for 340 Vdc and has 100 megohms of resistance to ground to help guard against leakage in high-voltage drive cabinets. The rotor is laminated, the shaft uses a single straight key, and the motor has no shaft seal. The heavy-duty NEMA face helps manage radial loads in guarded environments.

The motor operates continuously in ambient temperatures from -20 °C to +40 °C and has a body length of 171 mm. A three-stack magnetic core increases detent and dynamic torque without increasing frame width, which helps the motor maintain performance within its frame size. Electrical termination is through a System MS connector, which allows quick disconnect when the motor is removed from the machine. The motor uses enhanced SIGMAX construction to increase flux density in the stator teeth, allowing rated torque with standard drive currents.