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A high-torque 3-phase stepper motor paired with an EC3522 or EC3822 driver, aimed at CNC machines, 3D printers and robotic builds that need precise, repeatable positioning. It spans NEMA34, 42 and 52 frame sizes with 4.5 to 50 Nm of torque and 14 or 19 mm shafts, so the same kit line covers hobby builds up to heavier industrial axes. The 80-240V driver input is the standout: most hobby stepper drivers run on low DC voltage, while this one takes mains-level AC for more headroom at speed. The trade-off is that 3-phase motors and their drivers cost more and need more setup care than common 2-phase NEMA17 or NEMA23 setups, so it suits builders who have outgrown those.
Availability unknown
Lowest price we've seen: $3,765.95 on Nov 3 at VXB.com Bearings. Tracked across 1 store since Nov 3.
This kit pairs a high-torque 3-phase stepper motor with a matching driver for precise motion control. It is suited to CNC machines, 3D printers, robotic systems and other precision equipment.
The motor comes in NEMA 34, 42 and 52 sizes, with torque from 4.5 to 50 Nm. Shaft options are 14 mm and 19 mm, so the kit can be used in several configurations. The driver is an EC3522 or EC3822 model and works on 80-240V power.