Overview
The MyActuator L-4015-20T is a compact, high-performance direct drive servo motor designed for precision robotics and automation. Featuring a 24V nominal voltage, 0.22 N·m rated torque, and a max speed of 1010 RPM, this motor integrates a high-precision 18-bit magnetic encoder and supports CAN and RS485 communication protocols. Its lightweight yet durable aluminum housing, advanced magnetic materials, and optimized stator design deliver high torque density, excellent control accuracy (0.001°), and smooth dynamic response, making it ideal for applications where performance and precision are critical.
Key Features
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High Control Precision – Integrated 18-bit absolute value encoder for fine position control (up to 0.001° precision).
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Lightweight and Compact Design – Durable high-strength aluminum housing with only 120g motor weight.
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Strong Power in a Small Body – Up to 0.49 N·m instant torque and 1010 RPM max speed.
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Wide Compatibility – Supports CAN bus (1M) and RS485 protocols for versatile integration with PCs, PLCs, industrial controllers, and Raspberry Pi.
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Advanced Protection – High-temperature resistance up to 120°C, ensuring reliability in demanding environments.
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Flexible Control Modes – Supports torque loop, speed loop, position loop, and S-curve motion profiles for precise system tuning.
Specifications
| Item | Value |
|---|---|
| Nominal Voltage | 24V |
| Nominal Current | 1.88A |
| Nominal Torque | 0.22 N·m |
| Nominal Speed | 520 RPM |
| Max Speed | 1010 RPM |
| Max Instant Torque | 0.49 N·m |
| Max Instant Current | 4.3A |
| Line Resistance | 3.3 Ω |
| Phase Inductance | 0.78 mH |
| Speed Constant | 63 RPM/V |
| Torque Constant | 0.12 N·m/A |
| Rotor Inertia | 105 g·cm² |
| Pole Pairs | 13 |
| Weight | 120 g |
| Working Temperature | -20°C to 55°C |
| Max Demagnetize Temperature | 120°C |
| Control Precision | 0.001° |
| Matched Driver | MC100 |
| Driver Input Voltage | 12–24V |
| Driver Normal Current | 5A (Instant: 8A) |
| Driver Power | 100W |
| Encoder | 18-bit magnetic encoder |
Motor Characteristics
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Efficiency: Optimized curve for maximum performance and low energy loss.
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Output Power & Torque: Balanced profile ensures smooth torque delivery and high responsiveness.
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Input Current: Low steady-state current with reliable performance at varying speeds.
Applications
The L-4015-20T is ideal for a wide range of robotics and automation scenarios, including:
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Power inspection robots
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Exoskeleton robots
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Pipeline inspection robots
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Drones
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Industrial testing equipment
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Industrial gimbals
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Lidar systems
Integrated Motor Design
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High-strength, lightweight aluminum housing
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High-performance RbFeB permanent magnet for superior torque
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High-efficiency bearings for smooth operation
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Flat-bottomed multi-slot stator design for optimized torque density
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Integrated servo motor drive with position sensors for enhanced accuracy
Software Compatibility
Supports parameter tuning, testing, and firmware upgrades through the MyActuator Assistant software. Compatible with:
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PCs, industrial computers, and PLCs
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Open-source platforms like Raspberry Pi and MCUs
Control Modes Supported:
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Current control
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Speed control
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Incremental position control (with speed limit)
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Absolute position control (with speed limit)
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Operation control
Details

Integrated Direct Drive Actuator with all-in-one design, high control accuracy, and manual/automatic reset. Available models: RMD-L-4005, RMD-L-5010, RMD-L-4010, RMD-L-7015, RMD-L-9015, RMD-L-9025, and RMD-L-7025. Compact, cylindrical units in black, labeled with specs and branding. Ideal for precision applications, offering efficient performance with integrated features.

Integrated motor design features built-in drive and position sensor. It tiny, lightweight, and offers high control with high-performance accuracy. The product uses rare earth iron boron permanent magnets with precise arc design for smaller air gaps. This results in the highest encoder accuracy. The coercivity is optimized for maximum torque, supporting 40, 50, and 90 series products. The motor also features high temperature resistance and various products are available.

This product is compatible with host computer software for parameter tuning and firmware upgrade. It supports open-source development platforms like PCIMCU, PLC, industrial computers, and Raspberry Pi. The device offers three control modes: speed, incremental position, and absolute position. Additionally, it features HMAcTLTOR Assistant 3.0, which includes base setup, advanced motor adjust, and update servo mode.

Eight-bit Encoder. Zero points are never lost. RMD-L-4015-20T is a drivetrain item with part number j4290zhzewl. The input voltage is 12 to 24 volts, and the current is normal at 8 amps and instantaneously up to 100 amps. The encoder uses an 18-bit magnetic encoder with model number 8148840. The control mode includes torque loop, speed loop, and position loop. The S-curve is enabled.

The fields of application adapted to exoskeleton robots, drones, pipeline robot and lidar. Power inspection robots, exoskeleton robots, pipeline robots, drone industrial testing, and industrial gimbals are also applicable.
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