• Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215
  • Robot Joint Module Motor Exoskeleton Joint Actuator M4215

Robot Joint Module Motor Exoskeleton Joint Actuator M4215

70mm Small size actuator, servo motor

  • Power :50w
  • Weight:0.8kg
  • Maximum rotational speed:2000RPM
  • Output torque after deceleration:10NM

USD: 308

ablity:Monthly Output200

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Product Description

OD 70mm Small size robot joint actuator servo motor is mainly used for Robot Arm, integrated harmonic reducer, encoder, dc motor and driver. The robot joint servo motor could be used in robot arm joint directly, help build robot joints quickly.

Product parameters

Parameter M4215E14B50L M4215E14B80LM4215E14B100L
Overall parameterMotor rated voltage36VDC±10%36VDC±10%36VDC±10%
Motor rated current2A2A2A
Output torque after deceleration10NM10NM10NM
Weight0.8KG0.8KG0.8KG
Speed range after deceleration0~40RPM0~25RPM0~20RPM
Reducer parameterReduction ratio5080100
Rated torque7NM10NM10NM
Peak start-stop torque23NM30NM36NM
Backlash<10 arc seconds< 10arc seconds< 10arc seconds
Design life8500hour8500hour8500hour
Motor parameterTorque0.5NM0.5NM0.5NM
Rated speed1500RPM1500RPM1500RPM
Maximum rotational speed2000RPM2000RPM2000RPM
Power50W50W50W
Resistance2.652.652.65
Inductance1.1mh1.1mh1.1mh
Rotary inertia0.9139x10-5 KG/M 20.9139x10-5 KG/M 20.9139x10-5 KG/M 2
Feedback signalMulti-turn absolute encoder (15 bit single-turn and 16 bit multi-turn)
Cooling modeNatural cooling
Position Control ModeMaximum input pulse frequency500KHz
Pulse instruction modePulse + direction, A phase +B phase(needs the controller supports AB pulses)
Electronic gear ratioSet up 1~65535 to 1~65535
Location sampling frequency2KHZ
Protection functionLock-motor alarm, over-current alarm
Communication interfaceCanopen (CAN Communication) /Modbus(485 communication)
EnvironmentAmbient temperature0~40°
Max. permissible temperature of motor85°
Humidity5~95%


Product Display


1. Isolation CAN communication (EasyCan protocol, simple,  quick start, rate 1M). Support contour position mode, and, periodic synchronization mode.

2. With 17(50/80/100) harmonic reducer

3. 24-bit multi-loop absolute encoder (single-loop 15 bits + multi-loop 9 bits)(battery required).

4. Multistage DD motor structure, large torque output.

5. Integrated servo, simplified wiring, ultra-small volume.

6. Low noise, low vibration, high speed positioning, high reliability.

7. FOC field oriented vector control, support position / speed closed loop.

8. can work at zero hysteresis given pulse state, following zero hysteresis.

9. CAN upper computer is provided to monitor motor status and modify parameters



  1. Isolated CANopen communication
  2. Built-in isolated power supply
  3. Low power consumption multi-turn absolute value built-in battery
  4. Automatic charging
  5. When the motor is powered, there is a charging circuit inside to charge the battery
  6. After the motor is not powered, the motor shaft is driven to rotate to wake up the encoder and continue to memorize the position the battery current consumption is only 0.07mA
  7. Battery power down alarm


Size & Interface

Application Cases

This series of joint module actuators can be applied to industrial robots, collaborative robot arms, bipedal and quadruped bionic robots, medical robots (surgery and rehabilitation robots, etc.),AGV vehicles, fruit and vegetable picking robot arms, camera head and so on.

With modular design, compact joint actuator, its weight, size, installation mode, appearance lamp compared with the traditional products have done a considerable optimization, mainly used in collaborative robot and and light robot, can meet the miniaturization, lightweight, modular needs to a large extent. This series robot joint motors can also be widely used in CNC machine, automated production, robot arms, humanoid robots, and large rotating platform.

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