Nema23 57mm Closed Loop Stepper Motor System With 2.8N.m High Holding Torque
In general, servo motors are more sophisticated than stepper motors. They run significantly faster than stepper motors, with speeds on the order of several thousand RPMs (Fig. 3). This enables servo motors to be used with gearboxes to deliver much higher torque at useful speeds. They also deliver more consistent torque across the speed range of the motor. Unlike stepper motors, they do not have holding torque per se.
Closed-loop operation enables the controller/drive to command that the load remain at a specific position, however, and the motor will make continual adjustments to hold it there. Thus, servo motors can deliver de facto holding torque. Note, however, the zero-speed torque scenario depends upon the motor being sized properly to control the load and prevent oscillation about the commanded location.
1. Genaral Specification of nema 23 stepper loop stepper motor kit:
| Item | Specifications |
| Step Angle | 1.8° |
| Temperature Rise | 80℃max |
| Ambient Temperature | -20℃~+50℃ |
| Insulation Resistance | 100 MΩ Min. ,500VDC |
| Dielectric Strength | 500VAC for 1minute |
| Shaft Radial Play | 0.02Max. (450g-load) |
| Shaft Axial Play | 0.08Max. (450g-load) |
| Max. radial force | 75N (20mm from the flange) |
| Max. axial force | 15N |
2. Electrical Specification of CNC parts:
| Model No. | Step Angle | Motor Length | Current /Phase | Resistance /Phase | Inductance /Phase | Holding Torque | # of Leads | Detent Torque | Rotor Inertia | Mass |
| | ( °) | (L)mm | A | Ω | mH | N.m | No. | g.cm | g.cm | Kg |
| JK57HS41-4204 BFED-0.35M | 1.8 | 41 | 4.2 | 0.3 | 0.7 | 0.55 | 4 | 250 | 150 | 0.65 |
| JK57HS56-4204 BFED-0.35M | 1.8 | 56 | 4.2 | 0.4 | 1.2 | 1.1 | 4 | 350 | 280 | 0.98 |
| JK57HS76-4204 BFED-0.35M | 1.8 | 76 | 4.2 | 0.6 | 1.8 | 1.8 | 4 | 600 | 440 | 1.1 |
| JK57HS82-4204 BFED-0.35M | 1.8 | 82 | 4.2 | 0.7 | 2.5 | 2.2 | 4 | 1000 | 600 | 1.2 |
| JK57HS112-4204 BFED-0.35M | 1.8 | 112 | 4.2 | 0.9 | 3.8 | 3.1 | 4 | 1200 | 800 | 1.4 |
3. Matching Stepper motor Driver: JK-HSD57
- Step and direction control
- Closed position loop for no loss of movement synchronization
- Operating voltage: 20-80 VDC
- Load based output current of 0.1 - 10 A
- High torque at starting and low speed
- No torque reservation
- High stiffness at standstill
- Significantly reduced motor heating
- Smooth motor movement and extra low motor noise
- Quick response, no delay and zero settling time
- No loss of steps; no hunting; no overshooting
- Plug-and-play and no tuning
4. Drawing of nema23 closed loop stepper motor systerm
Unit=mm
6. Applications:
Our products are widely used in 3d printers, CNC routers, Engraving Machines, stage lighting control, security surveillance, video equipment, laserworkstation, carving machine, office automation, smart toy, digital controlled machinery and medical instrument and other automatic equipment.
The common products include stepper motor,dc motor,brushless dc motor,linear stepper motor,stepper driver,bldc driver,stepper motor with planetary gearbox,power supply,spindle motor,coupling,pulley and so on.
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Cnc Servo 2.8NM Nema 23 Closed Loop Stepper Motor 3d Printer 57mm Images
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