Cnc Servo 2.8NM Nema 23 Closed Loop Stepper Motor 3d Printer 57mm
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 |
| HJ57HS41-4204 BFED-0.35M | 1.8 | 41 | 4.2 | 0.3 | 0.7 | 0.55 | 4 | 250 | 150 | 0.65 |
| HJ57HS56-4204 BFED-0.35M | 1.8 | 56 | 4.2 | 0.4 | 1.2 | 1.1 | 4 | 350 | 280 | 0.98 |
| HJ57HS76-4204 BFED-0.35M | 1.8 | 76 | 4.2 | 0.6 | 1.8 | 1.8 | 4 | 600 | 440 | 1.1 |
| HJ57HS82-4204 BFED-0.35M | 1.8 | 82 | 4.2 | 0.7 | 2.5 | 2.2 | 4 | 1000 | 600 | 1.2 |
| HJ57HS112-4204 BFED-0.35M | 1.8 | 112 | 4.2 | 0.9 | 3.8 | 3.1 | 4 | 1200 | 800 | 1.4 |
3. Matching Stepper motor Driver:
- 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.FAQ:
Q1: Are you manufacturer ?
A1: Yes, we are the manufacturer of gear motor and planetary gearbox.
Q2 : What specifications we need before you place an order?
A2 : Rated torque, Rated speed, IP Grade, mounting dimensions.
Q3 : What is the price ?
A3 : Price always depends on quantity, we offer range pricing
Q4 : Is it customized ?
A4 : Yes, different clients have different requirements, so we customize for you. .
