NEMA 23 Closed Loop Stepper Motor Kit: 439 oz-in, 8mm Shaft

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NEMA 23 Closed Loop Stepper Motor Kit: 439 oz-in, 8mm Shaft


NEMA 23 Hybrid Servo kit (closed-loop stepper system) includes:

  • One Hybrid Servo Driver KL-5080D4
  • One NEMA23 KL23-31N-1000  shaft size 8mm
  • Hybrid Servo Motor with one Encoder 1000 line
  • Extra cable, 1.5m or longer

Please set SW5 off, Sw6: Off, SW7: Off,  SW8: off


1. 5080D4

KL-5080D4 is a closed-loop stepper drive. When used to drive a 2-phase stepper motor in frame sizes NEMA 8, 17, 23, or 24 with an incremental rotary encoder, it can close the position loop between the motor and drive and therefore eliminate the loss of step problem in an open-loop system.

Feature of KL-5080D4:

  • Step & direction or CW/CCW control modes
  • Supply voltage of 20-50 VDC, maximum output current of 8.0A
  • Powering 2-phase stepper motors of NEMA 8, 11, 14, 17, 23, and 24
  • Fault output, brake control, or in-position output.
  • No, loss of steps for the closed position loop
  • No tuning
  • No overshooting
  • No torque margin
  • Reduced motor heating and more efficient
  • Smooth motion and super-low motor noise
  • CE certified and RoHS compliant


The 5080D4 closed loop stepper drive is suggested to be implemented along with a compatible 2-phase stepper motor (usually NEMA 17, 23, and 24) with a 1000-line encoder. That closed stepper system can be used to upgrade open-loop stepper systems or replace some servo systems, especially in many small to medium speed applications such as CNC routers, CNC mills, CNC laser cutters, CNC plasmas, lab automation instruments, electronic equipment, small packaging machines, etc.

2. NEMA23 KL23-31N-1000

The NEMA23 KL23-31N-1000 motor is a 2 phase stepper motor with 3.1 N.m (439 oz-in) holding torque and integrated with a 1,000 line (4,000 counts/revolution) differential-ended rotary encoder. Build with high-quality materials including bearings and shaft made by Japanese manufacturers, this closed-loop stepper motor can be adopted in many industrial applications with excellent performance such as high precision, low motor heating, and low vibration.

Model: KL23-31N-1000
Frame Size: NEMA 23
Phase: 2
Step Angle: 1.8°
Accuracy: ±0.9°
Length: 105 mm (4.13 inch)
Number of Wires: 4
Holding Torque: 3.1N.m  (439 oz-in)
Phase Current: 5 A/Phase
Encoder Resolution: 1000 Line (4000 counts/per revolution)
Voltage: 2 V
Resistance: 0.4 Ω
Inductance: 1.8 mH
Rotor Inertia: 0.84 kg-cm2 (0.01189 oz-in-sec2 )
Shaft Size:  8mm
Shaft Type: Single
Weight: 1.6 kg (3.52 lb)
Insolation Class: B
Insolation resistance: Min 100 MΩ,500 VDC)
Operating Temperature: -10 - 50°C (14 - 122°F)
Temperature Rise (Max): 80K
More Information
Dual/Single Shaft Single
Motor Frame Nema 23
Shaft Size 8mm
Closed Loop Yes
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