YEJMKJ Nema 23 Closed Loop Stepper Motor Kit with Closed Loop Stepper Driver 2 Phase 1.8‌°‌ High Torque 2Nm(283.22oz·in) Bipolar 4.2A 0.8Ω 76mm Cable 3M for CNC Lathe Router 3D Printer DIY Robot

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• Dimensional data: Key dimensions for Nema 23 closed loop stepper motor kit with stepper driver include the following. Body size 57x57x75.4mm (2.25x2.25x2.97in), Shaft length 21mm, Shaft diameter Ø8mm, D-cut length 21mm, Installation hole distance 47.14mm, Motor lead color Black (A+) Green (A-) Red (B+) Blue (B-) Cable 3M, Weight 1405g.
• Parameters: Nema 23 Closed Loop Stepper Moto with driver kit, 2 Phase, Step angle 1.8‌dge(200 steps/rev), Holding torque 2Nm (283.22oz·in), Rated current 4.2A, Resistance 0.8Ω, Inductance 1.8mH±20%, Rotor inertia approx 495g.cm².
• Operational Safety: The safe and reliable operation of this Nema 23 Step motor with closed-loop controller kit is supported by these key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Temperature rise 80K MAX; Insulation resistance 100MΩ MIN; Insulation class(UL) B (130℃) [266°F]; Operation ambient temperature -20℃～+50℃ [-4°F～122°F]; Operation ambient humidity 15%RH～95%RH.
• Unlock Machine Capability: Our upgraded Nema 23 Closed Loop Stepper Motor Kit with Closed Loop Stepper Controller provides up to 20% higher holding torque. The refined steel core and advanced winding configuration promote efficient, smooth-running mechanics with substantially reduced operational noise for a cleaner working environment.
• Key Points to Remember: As speed increases, torque decreases. The ideal speed range is up to 1800 RPM for closed-loop systems. Lower current lowers both torque and temperature rise, and lower voltage reduces torque (24–36V DC recommended). The Nema 23 Closed Loop Stepper Motor Kit with Closed Loop Stepper Driver is widely used in 3D printers, DIY robots, CNC machines, and more. Its compact design and high torque make it ideal for tough applications.

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