42mm Integrated Stepper Motor with Closed Loop Stepper Controller (NEMA 17, 0.43Nm)

This 42mm integrated stepper motor closed loop stepper controller combines the motor, encoder, and driver into a single compact unit.
It offers higher accuracy, real-time feedback, and stable torque compared with a standard open-loop stepper motor.
Designed for automation machinery, small CNC machines, medical devices, dispensing equipment, and robotics, this integrated solution simplifies wiring and improves reliability.

Key Features

• Integrated stepper motor + closed loop driver + encoder in one compact housing
• High torque 0.43 Nm with smooth low-speed operation
• DC24–36V wide voltage input
• Encoder feedback eliminates lost steps
• Improved dynamic response compared with open-loop stepper motors
• Ideal for precise linear motion, automation equipment, and compact servo applications

Motor Dimensions

Item	Value
Motor size	42 × 42 mm
Motor length	48 mm
Shaft diameter	Φ5.0 ±0.012 mm
Shaft length	11 mm
Mounting holes	31 ±0.1 mm spacing; M3

Technical Parameters

Parameter	Specification
Step angle	1.8° ±5%
Phase	2
Rated voltage	2.8 VDC
Rated current	2.0 A
Phase resistance	1.4 Ω ±10%
Phase inductance	3.0 mH ±20%
Holding torque	0.43 Nm
Insulation class	Class B
Insulation resistance	≥100MΩ (500V DC)
Ambient temperature	-20°C to +50°C
Humidity	15% – 95%
Motor weight	Approx. 0.4 kg
Recommended voltage	DC24–36V

Terminal Definitions & Functions (Built-in Closed Loop Controller)

Terminal	Description
PWR	Power indicator
ALM	Alarm indicator — overcurrent/overvoltage/overload
XO–X3	Configurable input ports, supports photocoupler isolation
XCOM	Common terminal for digital inputs
YO–Y1	Configurable output ports for status signaling
YCOM	Common terminal for output ports
CANH	CAN Bus high line (Channel 1)
CANL	CAN Bus low line (Channel 1)
CANH2	CAN Bus high (Channel 2)
CANL2	CAN Bus low (Channel 2)
+DC	Power supply DC+ (24–36V)
GND	Power supply ground

Application Examples

• 3D printers & engraving machines
• Medical automation systems
• Robotics and robotic joints
• Precision dispensing machines
• Linear modules and XY platforms
• Compact servo-like motion control applications

FAQ

Open loop vs closed loop?

Open-loop stepper motors run without feedback, meaning the controller assumes the motor position.
Closed-loop motors include an encoder that provides real-time position feedback, eliminating missed steps, improving torque at high speeds, and enabling smoother motion.

Closed loop vs open loop control – which is better?

Closed-loop control is superior when accuracy, torque stability, and reliability are required.
Open-loop is lower cost and suitable for simple, light-load applications.
Integrated closed-loop stepper motors offer performance close to small servo motors at a lower price.

What is an integrated stepper motor?

It is a motor that integrates the stepper motor, encoder, and closed-loop driver into a compact single unit, reducing wiring complexity and improving performance.

Download Datasheet

Download the full specification sheet for detailed parameters, wiring guide, and performance curves.

📄 Download PDF Datasheet