Five Fingers Left Hand with Servo Robot Hand - Robot Pi Shop
Five Fingers Left Hand with Servo Robot Hand - Robot Pi Shop
Five Fingers Left Hand with Servo Robot Hand - Robot Pi Shop
Five Fingers Left Hand with Servo Robot Hand - Robot Pi Shop

Robot Pi Shop

Five Fingers Left Hand with Servo Robot Hand

$49.99

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Five-Finger Left Robotic Hand with High-Torque Servo Motors

The Five-Finger Left Robotic Hand is a servo-driven mechanical hand designed for robotics, bionic hand experiments, educational projects and DIY robotic systems.

Constructed from acrylic and aluminum alloy, the hand uses high-torque anti-block servo motors and a mechanical tie-rod linkage system to control finger movement.

Multiple mounting points make it easy to integrate the hand with robotic arms and custom mechanical structures.

Technical Specifications

  • Product Type: Five-Finger Robotic Hand
  • Hand Configuration: Left Hand
  • Drive System: Servo Motor
  • Servo Type: Anti-Block High-Torque Servo
  • Control Method: PWM
  • Main Materials: Acrylic & Aluminum Alloy
  • Approximate Hand Dimensions: 165 × 90mm
  • Mechanical Design: Tie-Rod Linkage
  • Mounting: Multiple DIY Mounting Holes

Servo Specifications

  • Maximum Torque: Approx. 17kg·cm at 8.4V
  • Operating Voltage: 6–8.4V DC
  • Recommended / Default Voltage: 7.2V
  • Speed: Approx. 0.18 sec/60° at 8.4V
  • Rotation Range: Approx. 220°
  • Angular Range: Approx. ±110°
  • Servo Dimensions: Approx. 40 × 20 × 40.5mm
  • Gear Material: Copper / Metal Gear
  • Control Signal: PWM
  • PWM Pulse Range: Approx. 600–2400µs
  • Output: Dual-Axis Output Shaft
  • Design: Low Backlash

Five-Finger Mechanical Design

The robotic hand uses individual mechanical finger structures designed to reproduce basic human-hand gripping movements.

The tie-rod linkage helps transfer servo rotation into finger movement while providing a practical range of motion for robotic manipulation.

Possible gripping movements include:

  • Power Grip
  • Precision Grip
  • Pinch Grip
  • Lateral Grip
  • Object Holding
  • Basic Finger Gestures

Actual grip performance depends on servo positioning, object shape, surface friction and the control system used.

PWM Servo Control

The hand uses standard PWM-controlled servo motors, making it possible to control the finger positions from common development platforms.

Compatible controllers can include:

  • Arduino
  • ESP32
  • Raspberry Pi with suitable PWM control hardware
  • STM32
  • Servo Controller Boards
  • Other PWM-Capable Microcontrollers

Each servo requires an appropriate PWM control signal and sufficient external power.

Power Requirements

The servos operate from approximately:

6–8.4V DC

For best performance, use a dedicated external servo power supply capable of providing sufficient current for multiple servos operating simultaneously.

Do not power the complete robotic hand directly from an Arduino, ESP32 or Raspberry Pi power pin.

The controller and servo power supply should normally share a common ground when using standard PWM control.

Expandable Control System

For more advanced robotics projects, additional external sensors may be integrated into the control system, such as:

  • Flex Sensors
  • Force / Pressure Sensors
  • Position Sensors
  • Encoders
  • Current Sensors

These sensors are not necessarily included with the robotic hand and require additional electronics and programming.

Mounting & DIY Integration

Multiple mounting holes allow the robotic hand to be integrated into:

  • Robotic Arms
  • Humanoid Robots
  • Bionic Robot Projects
  • Research Platforms
  • Custom Mechanical Structures
  • Educational Robotics Systems

Applications

Ideal for:

  • Robotics Research
  • Bionic Robotics
  • Humanoid Robots
  • Robotic Arms
  • Gripper Development
  • Human-Robot Interaction
  • Educational Robotics
  • University Projects
  • Servo Control Experiments
  • DIY Robotics
  • Automation Prototypes
  • Prosthetic Research & Educational Prototyping

Important Notes

  • This is the left-hand version.
  • Servo operating range is approximately 6–8.4V DC.
  • Maximum specified servo torque is approximately 17kg·cm at 8.4V.
  • Torque rating is a servo specification and does not represent the actual gripping force of the complete hand.
  • Use a dedicated external power supply for the servos.
  • Do not power multiple high-torque servos directly from a microcontroller board.
  • Raspberry Pi GPIO cannot directly supply servo power.
  • Additional sensors such as force sensors, encoders or flex sensors are not included unless specifically stated.
  • This product is intended for robotics, research, education and prototyping; it is not a certified medical prosthetic device.

Package Includes

1 × Five-Finger Left Robotic Hand with Servo Motors

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