Laifual | SKU:
Laifual M90D Motor
Regular price
$880.00
Unit price
Laifual M90D Motor - M90D(Without Brake) / 51 is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
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Laifual M90D Motor - M90D(Without Brake) / 51 is backordered and will ship as soon as it is back in stock.
Product Information




Application Scenarios
Humanoid Robots
Robotic Arms
Exoskeletons
Quadruped Robots
AGV Vehicles
ARU Robots
Technical Specifications
| Parameter | Value |
|---|---|
| Frame Motor | MM-90-A |
| Harmonic Reducer Speed Ratio | 51 / 81 / 101 / 121 |
| Starting Peak Torque (N·m) | 73 (51) / 96 (81) / 107 (101) / 113 (121) |
| Rated Torque (Max Avg. Load) (N·m) | 44 (51) / 61 (81) / 64 (101) / 64 (121) |
| Max Instantaneous Reducer Torque (N·m) | 127 (51) / 165 (81) / 191 (101) / 191 (121) |
| Motor Rated Torque (debug) (N·m) | 1.23 (51) / 1.08 (81) / 0.91 (101) / 0.76 (121) |
| Motor Max Torque (debug) (N·m) | 2.04 (51) / 1.69 (81) / 1.51 (101) / 1.33 (121) |
| Motor Inertia (debug) (kg·m²) | 36.51 (all ratios) |
| Maximum Speed (rpm) | 117.6 (51) / 74.1 (81) / 59.4 (101) / 49.6 (121) |
| Rated Speed (rpm) | 58.8 (51) / 37.0 (81) / 29.7 (101) / 24.8 (121) |
| Maximum Current (Arms) | 5.17 (51) / 4.28 (81) / 3.82 (101) / 3.37 (121) |
| Rated Current (Arms) | 3.11 (51) / 2.72 (81) / 2.29 (101) / 1.91 (121) |
| Motor Torque Constant (Nm/Arms) | 0.40 |
| Motor Phase Resistance (Ω) | 1.56 |
| Motor Phase Inductance (mH) | 3.67 |
| Motor Line Back EMF (Vrms/krpm) | 26.72 |
| Number of Motor Pole Pairs | 8 |
| Supply Voltage | AC 220V |
| Heat Resistance Class | F (155°C) |
| Insulation Resistance | 500 MΩ (DC 500V) |
| Dielectric Withstand Voltage | AC 1500V (1 min), <5mA |
| Parameter | Value |
|---|---|
| Product Model | EM-90D-A |
| Resolution | Maximum support 8388608 (23bit), compatible with 17bit |
| Number of Laps | 65536 (16bit) |
| Accessibility | Fault warning + Electromagnetic environment warning |
| Interface | RS485 |
| Communication Frequency | ≤16K |
| Baud Rate | 2.5 Mbps |
| Input Shaft Allowable Deviation (Axial) | ±0.2 mm (axial movement < ±0.03mm) |
| Input Shaft Allowable Deviation (Radial) | ±0.1 mm |
| Spindle Speed | ≤6000 rpm |
| Vibration | 10~55 Hz, amplitude 1.5 mm; 55~2000 Hz, acceleration 98 m/s²; XYZ 2h per axis (6h total) |
| Mechanical Shock | Impact acceleration 980 m/s², 11 ms; 3 impacts per direction, 18 total |
| Operating Temperature | -40 ~ 85°C |
| Relative Humidity | ≤90% (40°C/21d, EN 60068-2-78); no condensation |
| Protection Level | — (Motor rear shell protection) |
| Parameter | Value |
|---|---|
| Model | MM-90-A |
| Number of Poles | 16 |
| Peak Current (Arms) | 7.2 |
| Phase Resistance (@20°C) (Ω) | 1.56 |
| Back EMF Constant (Vrms/krpm) | 26.72 |
| Phase Inductance (@1kHz) (mH) | 3.67 |
| Torque Constant (N·m/A) | 0.40 |
| Rated Voltage (VAC) | 220 |
| Insulation Grade | F 155°C |
| No‑load Speed (rpm) | 6000 |
| Dielectric Strength (VAC) | 1500 |
| No‑load Current (Arms) | 0.24 |
| Insulation Resistance (MΩ) | 500 |
| Rated Torque (N·m) | 0.95 |
| Rotor Moment of Inertia (kg·m²) | 36.51 |
| Rated Speed (rpm) | 3000 |
| Usage Environment | -20 ~ 60°C |
| Rated Current (Arms) | 2.4 |
| Storage Environment | -30 ~ 85°C |
| Peak Torque (N·m) | 2.85 |
| Humidity | ≤95% (no condensation) |
| Weight (kg) | 0.38 |

