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Humanoid Lower Leg Joint Linear Actuator-5000N

Basic Properties
Place of Origin: CHINA
Brand Name: SENINTER
Certification: CE ROHS
Model Number: F5000
Product Summary
This linear actuator is designed for linear joints on humanoid robot limbs. It integrates drive system, transmission structure, force sensing and position feedback as a single unit, equipped with large-lead planetary roller screw, four-point contact bearing, high-performance frameless torque motor, ...

Product Details

Maximum Thrust Force: 5000N
Stroke: 100mm
Maximum Linear Speed: 300mm/s
Overall Dimension: 53mm*243mm
Rated Voltage: DC48V ±10%
Comm Protocol: CAN FD / EtherCAT
Product Description


This linear actuator is designed for linear joints on humanoid robot limbs. It integrates drive system, transmission structure, force sensing and position feedback as a single unit, equipped with large-lead planetary roller screw, four-point contact bearing, high-performance frameless torque motor, high-precision inductive encoder and high-precision tension force sensor.

  • High Thrust Density

    It provides a maximum thrust of up to 8 kN with compact and lightweight dimensions, meeting the weight reduction demands of humanoid robots.

  • Dual Full Closed-Loop Sensing

    Position and force dual closed-loop control enables precise flexible motion, landing buffering and external force detection.

  • Highly Integrated Monolithic Structure

    The motor, screw, sensors and bearings are entirely encapsulated inside the cylinder, simplifying wiring layout and improving overall assembly efficiency.

  • Superior Dynamic Response

    The combination of frameless torque motor and large-lead screw delivers fast extension and retraction, suited for high-dynamic gaits including walking, running and jumping.

  • Shock Resistance & Durability

    The planetary roller screw paired with heavy-load bearings withstands impact loads from robotic gaits, extending the service life of the whole actuator.

Humanoid Lower Leg Joint Linear Actuator-5000N




Micro actuators are deployed for joint driving of dexterous robotic fingers.
This high-thrust linear actuator is customized as the drive unit for humanoid robot shank linear joints, supporting stable walking and standing posture control.

The servo electric cylinder is a modular unit with integrated servo motor and lead screw assembly. It transforms the rotary output of the servo motor into precise linear displacement, representing a groundbreaking new generation solution for high-accuracy linear motion systems.
Humanoid Lower Leg Joint Linear Actuator-5000N


No. Specifications Data
1 Size 53mm*243mm
2 Max. Force 5000N
3 Max. Speed 300mm/s
4 Stroke 100mm
5 Weight 1.4kg
6 Integrated Brake Without
7 Network Communication CAN FD/EtherCAT
8 Rated Voltage DC48±10%
9 Pressure Sensor Yes
10 Internally Integrated Drive Controller Yes


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