K43HLFL-LSS-NS-03 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific K43HLFL-LSS-NS-03 is a stepper motor in the K PowerPac Motors series, featuring a NEMA 42 heavy-duty mounting type and a 4.325 inch square frame. Its SIGMAX enhanced construction provides holding torque of 39.9 Nm and a step angle of 1.8 degrees. The motor has 8 lead wires and operates within a temperature range of -20°C to +40°C.
Internal Product Review
The K43HLFL-LSS-NS-03 is a Pacific Scientific stepper motor with a NEMA 42 frame and heavy-duty NEMA mounting. Enhanced SIGMAX construction and a laminated rotor give the motor a well-engineered feel and dependable motion behavior. A 1.8° step angle and 39.9 Nm holding torque make the unit an excellent option for stable, repeatable positioning.
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Product Description:
The K43HLFL-LSS-NS-03 is a stepper motor built by Pacific Scientific as part of the K PowerPac Motors series. By advancing its shaft a fixed increment for every input pulse, the unit converts digital drive commands into repeatable mechanical motion. This operating method allows machines to position loads accurately through controlled pulse sequences. The motor is suitable for material feeders, labeling stations, and moderate-torque conveyors where open-loop positioning provides sufficient accuracy.
The motor uses a NEMA 42 frame that measures 4.325 in. square, providing a large stator bore for its SIGMAX enhanced magnetic construction and laminated rotor. Its three stator stacks produce a holding torque of 39.9 Nm, allowing tables and presses to remain stationary while drive current is applied. Each full step rotates the shaft by 1.8°, and cumulative position error remains within ±1.5% of the commanded movement. Power wiring passes through a splash-protected conduit entry with a 1/2 in. NPSC pipe thread and terminates at an internal terminal board. The motor has an overall body length of 201 mm and fits heavy-duty NEMA mounting brackets. Its rigid frame supports installation on machinery that experiences repeated starts, stops, and holding periods.
Continuous operation is permitted from -20 °C to +40 °C, supporting use across common factory-floor temperature conditions. The varnished windings have an insulation resistance of 100 megohms when tested at an applied potential of 340 VDC. The phase conductors form an eight-lead bundle that supports series or parallel phase connections to compatible stepper drives. The motor is supplied without a feedback option, so the connected drive controls movement through command pulses rather than encoder correction. Its conduit connection helps shield the internal wiring from splashing liquids while providing a secure route into the terminal board.
