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[China]
Address: 301 Dong Lu, Jingkai District, Changzhou city, Jiangsu Province
Contact name:admin
Changzhou Hejie Motor Co., Ltd |
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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:
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. .
