BLM42

BLM42 Integrated BLDC Motor

42mm flange integrated brushless DC motor – features high-speed smooth operation, integrates drive, control, and I/O, simplifies wiring, saves space, and delivers smarter integrated solutions for a wide range of compact automation equipment.

Features

Optional brake
External wiring option
Integrated driver and encoder

Pulse RS485 CANopen 42mm

Models & Specifications

Specs as rows · Models as columns

Specifications	BLM4203B-485-0FS	BLM4203B-CANopen-0FS	BLM4203B-485-0FS-W	BLM4203B-CANopen-0FS-W	BLM4203B-485-0FSB	BLM4203B-CANopen-0FSB	BLM4205B-485-0FS	BLM4205B-CANopen-0FS	BLM4205B-485-0FS-W	BLM4205B-CANopen-0FS-W	BLM4205B-485-0FSB	BLM4205B-CANopen-0FSB
Flange Size	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm
Torque	0.083 N·m	0.083 N·m	0.083 N·m	0.083 N·m	0.083 N·m	0.083 N·m	0.15 N·m	0.15 N·m	0.15 N·m	0.15 N·m	0.15 N·m	0.15 N·m
Brake	No Brake	No Brake	No Brake	No Brake	Built-in Brake w/ Logic	Built-in Brake w/ Logic	No Brake	No Brake	No Brake	No Brake	Built-in Brake w/ Logic	Built-in Brake w/ Logic
Rated Speed	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm	3000 rpm
Rated Power	26 W	26 W	26 W	26 W	26 W	26 W	47 W	47 W	47 W	47 W	47 W	47 W
Rated Voltage	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC	24 VDC
Voltage Range	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC	12-36VDC
Encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder	2500-line single-turn absolute magnetic encoder
Rated Current	1.7 A	1.7 A	1.7 A	1.7 A	1.7 A	1.7 A	2.77 A	2.77 A	2.77 A	2.77 A	2.77 A	2.77 A
Inertia	2.0×10^-6 kg·m²	2.0×10^-6 kg·m²	2.0×10^-6 kg·m²	2.0×10^-6 kg·m²	2.39×10^-6 kg·m²	2.39×10^-6 kg·m²	4.2×10^-6 kg·m²	4.2×10^-6 kg·m²	4.2×10^-6 kg·m²	4.2×10^-6 kg·m²	4.99×10^-6 kg·m²	4.99×10^-6 kg·m²
Protection Level	-	-	-	-	-	-	-	-	-	-	-	-
STO Function	-	-	-	-	-	-	-	-	-	-	-	-
Body Length	58.5 mm	58.5 mm	58.5 mm	58.5 mm	84 mm	84 mm	78.5 mm	78.5 mm	78.5 mm	78.5 mm	104 mm	104 mm
Weight	0.30 kg	0.30 kg	0.30 kg	0.30 kg	0.44 kg	0.44 kg	0.48 kg	0.48 kg	0.48 kg	0.48 kg	0.60 kg	0.60 kg

* Scroll horizontally within the table area when the content is wide.

Specifications

Shaft Diameter	Φ5
Encoder	2500-line single-turn absolute magnetic encoder
Drive Mode	Adopting FOC field-oriented control technology and SVPWM
NiMotion Mode	Position mode: Pulse control, multi-segment position control, digital input control Speed mode: Analog speed control, digital input control Torque mode: Digital input control
CiA402 Mode	CiA402 (PP, VM, PV, PT, HM, IP, CSP, CSV, CST); NiMotion modes
DI (Digital Input)	Quantity: 3 units; maximum PWM pulse frequency 2MHz; supports 5V and 24V level inputs. Configurable functions: 1. Enable 2. Positive/negative limit 3. Origin switch 4. Alarm reset 5. Pause 6. Multi-segment operation command switching.
Control Modes	CiA402 modes, Manufacturer-specific modes, Position mode, Speed mode, Torque mode
External Control Interface	DI – Non-isolated NPN Input,DI – Non-isolated PNP Input,DI – Non-isolated Switch Input,DO – Isolated Open-Drain Output,DO – Non-isolated MOSFET Output,AI – 0–10V Analog Input
DO (Digital Output)	Quantity: 2 units; Output method: MOS open-drain output; Current: DO1: maximum load current 500mA, maximum voltage 30V; DO2: maximum load current 1A, maximum voltage 30V (not available for brake models). Configurable functions: 1. Motor run/stop; 2. Target reached; 3. Alarm output.
AI (Analog Input)	Quantity: 1 Input method: Single-ended input Signal type: Voltage signal Resolution: 12-bit Voltage: 0–10V Accuracy: Reference error ≤ 1% Configurable functions: Dead zone, filtering, offset, scaling, direction
Operating Temperature	0°C to 40°C
Operating Altitude	<1000m
Fault Alarm	Overvoltage, undervoltage, overtemperature, locked rotor
Servo Function	Soft limit, gain switching, S-curve planning, vibration suppression, parameter identification, online upgrade

Product Details

Application in AGV Equipment

This integrated BLDC motor series is applicable to AGV drive wheels, steering actuators, lifting platforms, and fork positioning mechanisms. Its compact integrated design saves vehicle space, leaving more room for batteries and cargo. Built-in encoder enables full closed-loop control, adapting to floor irregularities and load variations. Multiple communication protocols are supported for compatibility with various navigation systems.

Downloads

Name	Type	Size	Update Date
NiMotion Integrated Motor Selection Guide	Selection Guide	12.8MB	2026-08-25
blm42-series-canopen-rs485-User Manual	User Manual	1.7MB	2026-08-11
blm42xxb-xxx-0fsb-integrated-brushless-dc-motor	Drawing	217.2KB	2026-07-28
Communication Manual – pmm60l/blm/stm-modbus	Communication Manual	4.0MB	2026-08-27
Motor Tuning Software – General Purpose	Software	84.5MB	2026-08-27
blm42xxb-xxx-0fs-integrated-brushless-motor	Drawing	217.1KB	2026-07-28
Communication Manual – pmm60l/blm/stm-CANopen	Communication Manual	3.8MB	2026-08-27
blm4206b-xxx-n-0fs-integrated-brushless-motor	Drawing	193.9KB	2026-07-28

Companion Products

Power CableSTDX001 Power Cable

Power cable for NiMotion integrated motors.

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Communication CableSTX002A/B Communication Cable

Communication cable for NiMotion integrated motors.

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Communication ConverterSCM-USBCANI-L

USB to CAN converter with isolation, IP65 protection, and secondary development SDK support.

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Communication ConverterSCM-USB485A-L

USB to RS485 converter with active termination, isolation, IP65 protection, and secondary development SDK support.

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I/O CableSTX003 IO Cable

IO cable for NiMotion integrated motors.

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Communication CableVDCX010P Communication Cable

Communication cable for NiMotion integrated motors.

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Communication CableSDCX001-KZ-B Communication Cable

Communication cable for NiMotion integrated motors.

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Other AccessoriesM8 Terminal Resistor

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Applications

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Application of integrated servo motor in extracorporeal vibrating lithotripsy bed

With the continuous advancement of medical technology, the extracorporeal vibrating lithotripsy bed, as a non-invasive stone treatment device, has been widely used in the medical field. The integrated servo motor, as the core driving component of the extracorporeal vibrating lithotripsy bed, provides safer and more reliable technical support for the treatment of stone patients with its high efficiency, stability and precision.

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Application of integrated servo motor in venous center robotic arm

With the continuous advancement of medical technology, robot-assisted surgery has become an important development direction in the field of modern medicine. Among them, the venous center robot arm, as a key component of the surgical robot, plays a vital role in the accuracy, stability and safety of the operation. As one of the core components of the robot arm, the integrated servo motor is also gaining more and more attention in the application of the venous center robot arm.

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Application of integrated servo motor in AGV

Automation technology has leapt forward, and the popularity of automatic guided vehicles (AGVs) in logistics, warehousing and production has accelerated. As a key equipment in intelligent logistics, AGVs use electrical control, sensing and navigation technologies to achieve automatic handling and precise positioning of goods. The integrated servo motor, as its power heart, is crucial to the performance of AGVs.

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Application of integrated servo motor in tension system equipment

With the rapid development of industrial automation, the demand for high-precision and high-efficiency transmission and control equipment is growing. As an intelligent motor integrating drive, control and feedback, the integrated servo motor has been widely used in various industrial equipment due to its excellent performance. Especially in tensile test equipment, the integrated servo motor plays a vital role.

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Application cases of integrated stepper servo motors in fluid equipment in the spraying industry

The application of integrated stepper servo motors has achieved precision and efficiency in the spraying process. The combination of CANopen communication and intelligent control algorithms has solved the pain points of traditional spraying equipment, such as large flow fluctuations and delayed response, and significantly improved coating quality and production efficiency.

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Application of integrated stepping servo motor in microscope stage

Microscopes are indispensable tools in scientific research and medical diagnosis, and their accuracy and stability are crucial to the observation results. The stage, as an important part of the microscope, carries the sample to be observed, and its movement accuracy and response speed directly affect the observation effect.

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Application and optimization of integrated servo motors in appearance inspection equipment

This article aims to introduce the application scenarios, technical features, challenges and solutions of integrated servo motors (PMMP4010B-CANpen) in appearance inspection equipment. Through actual case analysis, the key role of motors in improving the accuracy and stability of inspection equipment is demonstrated.

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Application of integrated servo motor in intelligent (automatic) charging equipment

With the widespread promotion and popularization of new energy vehicles, the demand for charging equipment is also growing. In order to improve the efficiency and performance of charging equipment, integrated servo motor technology is widely used in new energy vehicle charging equipment. Integrated servo motor technology combines the functions of motor, controller, sensor, etc., with the advantages of high efficiency, precision and intelligence, bringing revolutionary changes to the charging equ

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