Current: 3A
Resistance: 1.4Ω
Phase inductance: 4.5mH
Rated Torque: 2.2Nm(311.55oz.in)
Encoder: 1000ppr / 17bit / 15bit
JKISC57-R4A3 with PRF/PRL60-L Series Planetary Gearbox
Jkongmotor
Nema23-57mm
Pulse Type, RS485 ModBus, CANopen Network
10 Pcs
| Availability: | |
|---|---|
The JKISC57-R4A3 is a NEMA 23 integrated planetary geared stepper servo motor designed for higher-torque industrial motion applications using RS485 Modbus control. It delivers 2.2 N·m rated torque, 3.0 A current, 1.4 Ω resistance, 4.5 mH inductance, and a 102 mm body length. Its integrated driver reduces external components and wiring, while the encoder supports single-turn and multi-turn absolute encoder options for accurate closed-loop positioning. The PRF/PRL60-L planetary gearbox helps increase torque density and provides a compact transmission solution. RS485 communication makes the motor suitable for PLC-based automation, multi-axis machinery, conveyors, packaging equipment, robotics, and industrial positioning applications. With its NEMA 23 frame, the JKISC57-R4A3 offers a practical combination of torque, communication capability, and installation flexibility.
Talk to JKongmotor today for an RS485 planetary geared stepper servo motor tailored to your equipment.

| Series | ISS | ISC |
| Wires Pins | Traditional connector | More intelligent wires with protection |
| Temperature rise | Normal motor temperature rise | Lower temperature rise enhances accuracy and ensures more stable performance. |
| Protection Level | without IP Protection | IP30, IP54, IP65... |
Type: Nema23 stepper motor with built-in driver
Model Name: JKISC57-R4A3
Phase: 2
Step Angle: 1.8 degree
Current: 3A
Resistance: 1.4Ω±10%(20℃)
Inductance: 4.5mH±20%(1kHz 1V RMS)
Holding Torque: 2.2Nm (311.55oz.in)
Encoder: 1000ppr / 17Bit / 15Bit
Control Method: RS485 (Pluse, CANopen optional)
Frame Size: Nema 23 (57x57mm)
Body Length: 102mm
Shaft Diameter: 8mm
Shaft Length: 21mm
Cortex-M4 core high-performance 32-bit micro controller
The highest pulse response frequency can reach 200KHz
Built in protection function, effectively ensuring the safe use of the device
Intelligent current regulation to reduce vibration, noise, and heat generation
Adopting low internal resistance MOS, the heating is reduced by 30% compared to ordinary products
Voltage range: DC12V-36V
Integrated design with integrated drive motor, easy installation, small footprint, and simple wiring
Equipped with anti reverse connection function
Pulse type
RS485 MOdbus RTU network type
CANopen network type
Waterproof type: IP30, IP54, IP65, optional
Medical equipment, logistics transportation, industrial automation, textile machinery, laser, drawing, traditional Chinese medicine ingredient industry, etc
| Electrical Specification | ||
| Product Type | / | Nema 23 Planetary Geared Integrated Stepper Motor with Built-in Driver |
| Model Name | / | JKISC57-R4A3 |
| Phase | phase | 2 |
| Step Angle | ° | 1.8 |
| Current | A | 3 |
| Resistance | Ω | 1.4 |
| Inductance | mH | 4.5 |
| Rated Torque | N.m | 2.2 |
| Total Height | mm | 102 |
| Encoder | / | 1000ppr / 17Bit / 15Bit |
| Insulation Class | / | B |
| Driver Parameters | Min | Rated | Max |
| Input Voltage(V) | 16 | 24 | 48 |
| Logic Input Voltage (V) | 5 | 5 | 24 |
| Logic Input Current(mA) | 10 | 10 | 50 |
| Pulse Frequency(KHz) | 200 |
| Environment | Parameters |
| Cooling Method | Natural or forced cooling |
| Application | Avoid dust, oil and corrosive gases; keep away from other heat generating equipment; prohibit the presence of combustible gases and conductive dust. |
| Operating Temperature | 0℃ ~ +50℃ |
| Environmental humidity | ≤85%RH(no condensation) |
| Vibrations | 5.9m/s² max |
| Storage Temperature | -25℃ ~ +70℃ |
| Color | Name | Function |
| Green | PWR | Power indicator |
| Red | ALM | Alarm indicator |
| Pin | Port Name | Description |
| 1 | SW1 | Machine Address Settings |
| 2 | SW2 | |
| 3 | SW3 | |
| 4 | SW4 | |
| 5 | SW5 | RS485 Communication Baud Rate Setting |
| Ports | Pin | Port Name | Description | Default Function |
| CN1 | 1 | DI1+ | Digital Input 1 Positive Terminal | Origin signal |
| 2 | DI1- | Digital Input 1 Negative Terminal | ||
| 3 | DI2+ | Digital Input 2 Positive Terminal | Positive limit signal | |
| 4 | DI2- | Digital Input 2 Negative Terminal | ||
| 5 | DI3+ | Digital Input 3 Positive Terminal | Negative limit signal | |
| 6 | DI3- | Digital Input 3 Negative Terminal | ||
| 7 | DO1+ | Digital Input 1 Positive Terminal | Undefined | |
| 8 | DO1- | Digital Input 1 Negative Terminal | ||
| 9 | DO2+ | Digital Input 2 Positive Terminal | Alarm signal | |
| 10 | DO2- | Digital Input 2 Negative Terminal | ||
| CN2 | 1 | 485A | RS485 Communication Positive Terminal | - |
| 2 | NC | undefined | - | |
| 3 | 485B | RS485 Communication Negative Terminal | - | |
| 4 | COM | Common Ports | - | |
| CN3 | 1 | 485A | RS485 Communication Positive Terminal | - |
| 2 | 5V | +5V | - | |
| 3 | 485B | RS485 Communication Negative Terminal | - | |
| 4 | COM | Common Ports | - |
| Ports | Pin | Port Name | Description |
| CN4 | 1 | GND | Negative power supply wiring |
| 2 | VCC | Positive power supply wiring | |
| CN5 | 1 | RXD | Serial port communication receiver |
| 2 | TXD | serial port communications sender | |
| 3 | COM | Common port | |
| 4 | 5V | +5V |
| Address | SW1 | SW2 | SW3 | SW4 |
| *Default | OFF | OFF | OFF | OFF |
| 1 | ON | OFF | OFF | OFF |
| 2 | OFF | ON | OFF | OFF |
| 3 | ON | ON | OFF | OFF |
| 4 | OFF | OFF | ON | OFF |
| 5 | ON | OFF | ON | OFF |
| 6 | OFF | ON | ON | OFF |
| 7 | ON | ON | ON | OFF |
| 8 | OFF | OFF | OFF | ON |
| 9 | ON | OFF | OFF | ON |
| 10 | OFF | ON | OFF | ON |
| 11 | ON | ON | OFF | ON |
| 12 | OFF | OFF | ON | ON |
| 13 | ON | OFF | ON | ON |
| 14 | OFF | ON | ON | ON |
| 15 | ON | ON | ON | ON |
Note: *Default factory setting is 01, customizable configuration (Register 200Bh).
| Baud Rate | SW5 |
| *Default | OFF |
| 115200bps | ON |
Note: *Default factory setting is 57600 bps, customizable (register 200Ch).
| Model | PRF/PRL60-L1 | PRF/PRL60-L2 | ||||||||||||||||
| Gear Ratio | / | 3 | 4 | 5 | 7 | 10 | 12 | 15 | 16 | 20 | 25 | 28 | 30 | 35 | 40 | 50 | 70 | 100 |
| Rated Torque | 27 | 40 | 40 | 34 | 16 | / | / | / | 40 | 40 | / | / | 40 | 40 | 40 | 34 | 16 | |
| Max Torque | 41 | 60 | 60 | 51 | 24 | / | / | / | 60 | 60 | / | / | 60 | 60 | 60 | 51 | 24 | |
| Motor Diameter | mm | 57 | ||||||||||||||||
| Motor Shaft Diameter | mm | 8 | ||||||||||||||||
| Motor flange | mm | 38.1 | ||||||||||||||||
| Front cover hole spacing | mm | 47.1 | ||||||||||||||||
| Front cover pitch circle | mm | 66.6 | ||||||||||||||||
| Mounting hole | / | M4 | ||||||||||||||||
| Gearbox Length | mm | 112 | 129.5 | |||||||||||||||
| Back Lash | arcmin | ≤8 arcmin | ≤12 arcmin | |||||||||||||||
| Efficiency | % | ≥96 | ≥94 | |||||||||||||||
| Rated Input Speed | Rpm | 4000 | ||||||||||||||||
| Max Input Speed | Rpm | 8000 | ||||||||||||||||
| Average Life Span | h | 20000 | ||||||||||||||||
| Noise | dB | ≤58 | ||||||||||||||||
| Work Temp. | ℃ | -20 to +80 | ||||||||||||||||
| Lubricating grease | / | Fully Synthetic Grease | ||||||||||||||||


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For Pulse Direction control, see [Pulse Direction Control JKISC57-P4A3].
For CANopen control, see [CANopen CANbus Control JKISC57-C4A3].
Standard step-servo, see [JKISC57-R4A3 integrated step-servo motor].
With worm gearbox, see [JKISC57-R4A3 integrated step-servo with worm gearbox].
With ball screw, see [JKISC57-R4A3 integrated step-servo with ball screw linear].
With external lead screw, see [JKISC57-R4A3 integrated step-servo with t-type lead screw linear].
With linear module, see [JKISC57-R4A3 integrated step-servo with linear module].
For low torque, see [0.55N.m - RS485 ModBus Control - JKISC57-R1A3].
For medium torque, see [1.2N.m - RS485 ModBus Control - JKISC57-R2A3].
For medium torque, see [1.89N.m - RS485 ModBus Control - JKISC57-R3A3].
For high torque, see [2.2N.m - RS485 ModBus Control - JKISC57-R4A3].
For high torque, see [2.8N.m - RS485 ModBus Control - JKISC57-R5A3].
For high torque, see [3.0N.m - RS485 ModBus Control - JKISC57-R6A3].
As a professional planetary geared integrated stepper motor manufacturer, JKONGMOTOR provides customized motion control solutions for global clients. Learn more about our factory capabilities.
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