Technical Specifications

• Nominal Rated Operating Voltage: 48 VDC
• Continuous Rated Output Power (S1 Duty): 400 W
• Continuous Stall Torque: 1.2 N·m
• Peak Overload Torque: 3.6 N·m (1-second maximum duration)
• Rated Continuous Speed: 3000 rpm
• Maximum Mechanical No-Load Speed: 5000 rpm
• Commutation Structure: Carbon brush mechanical commutator
• Feedback Encoder (B2 Suffix): 1000 line quadrature incremental optical encoder, A/B/Z channel signal output
• Integral Brake (B3 Suffix): Spring-applied power-off holding brake, static holding torque 1.5 N·m, 24 VDC brake release coil
• Shaft Specification: 8 mm diameter smooth solid output shaft
• Mounting Flange: Standard 60 × 60 mm square aluminum mounting flange
• Overall Motor Length (with brake + encoder): 142 mm
• Net Weight: 2.1 kg
• Insulation Class: B-grade (130 °C maximum winding temperature)
• Protection Rating: IP54 housing and shaft sealing
• Operating Ambient Temperature Range: 0 °C to +40 °C
• Certifications: CE, RoHS 2

Functional Features

1. Surface-mounted ferrite permanent magnet rotor delivers stable low-speed torque output with compact motor body volume
2. Mechanical carbon brush commutation structure compatible with low-cost analog DC servo drive control hardware
3. Rear-mounted 1000-line quadrature incremental encoder provides closed-loop velocity and position feedback signal
4. Integrated power-off spring holding brake locks motor shaft instantly upon 24 VDC brake coil power cut for vertical load anti-slip positioning
5. Replaceable carbon brush cartridge design for convenient on-site wear component maintenance without full motor disassembly
6. Built-in winding PTC thermal sensor for continuous stator temperature monitoring and over-temperature protection

Performance Highlights

1. High torque-to-volume ratio miniature body fits ultra-small installation space miniature automation actuators
2. Power-off brake holding torque exceeds continuous motor stall torque to eliminate vertical load gravity slip
3. Replaceable brush cartridge extends motor service life by reducing full motor replacement frequency
4. Low electromagnetic interference emission suitable for laboratory medical precision equipment environments

Material Composition

• Motor Housing: Die-cast aluminum alloy matte black anodized casing
• Stator Winding: Enameled copper magnet wire B-grade insulation
• Rotor Magnet: High-performance ferrite permanent magnet segments
• Commutator Assembly: Copper segment mechanical commutator with graphite carbon brush contact elements
• Brake Assembly: Steel friction brake disc, compression spring release mechanism, copper brake coil winding
• Output Shaft: 4130 alloy steel precision ground solid shaft

Structural Characteristics

1. Front mounting flange standardized 60 mm square footprint with four M4 symmetrical threaded mounting holes
2. Middle motor main body integrated replaceable carbon brush cartridge access cover for brush maintenance without encoder disassembly
3. Rear dual-layer stacked assembly: front power-off brake module, rear incremental encoder housing with signal wiring terminal block
4. Single shared wiring terminal block for motor power, brake coil, encoder signal, and thermal sensor wiring
5. Double miniature ball bearing front-rear shaft support structure for low radial play high-speed rotation

Working Principle

1. Low-voltage DC servo drive outputs variable magnitude DC armature current to motor stator windings; mechanical commutator and carbon brushes switch armature current phase sequentially to generate rotating magnetic field
2. Ferrite permanent magnet rotor interacts with stator rotating magnetic field to produce continuous rotary output torque driving mechanical load
3. Rear incremental encoder samples rotor rotational position and transmits quadrature pulse signal back to DC servo drive for closed-loop PID velocity and position regulation
4. 24 VDC energized brake coil generates electromagnetic force to compress internal brake spring and release shaft friction disc for free motor rotation; brake coil power loss releases electromagnetic force, spring pushes friction disc to lock motor shaft mechanically
5. PTC thermal sensor embedded in stator windings transmits resistance temperature signal to drive to trigger power reduction or fault stop upon winding overtemperature

Advantage Highlights

1. Low 24–90 VDC operating voltage eliminates high-voltage safety isolation requirements for small automation equipment
2. Integrated brake + encoder single motor unit reduces mechanical assembly component count and fixture design complexity
3. Replaceable brush cartridge cuts field maintenance downtime and spare part inventory cost