6DOF Robotic Arm Kit High Torque 25KG Metal Gear Digital Motor Mechanical Arm DIY Assembly with Wireless Serial Control 624G Structure (Unassembled)

Product Specifications
Color: As shown
Material: Metal
Servo Controller: Digital
Servo Dimensions: 40 x 20.5 x 40.5 mm
Weight: 62g ±5%
Operating Voltage: 4.8–7.2V (Peak: 8.2V)
Output Drive: Metal gears + dual bearings
No-load Speed: 0.145–0.185 sec/60°
Stall Torque: 25.5 kg·cm
Pulse Width: 500–2500 µs
Rotation Angle: 180°
Dead Band: 5 µs
Neutral Position: 1500 µs
Output Shaft: 25T
Output Shaft Hole: M3
No-load Current: 220–280 mA
Stall Current: 2250–2850 mA
Waterproof Rating: Splash-proof (light water resistance)
Housing: Aluminum alloy (red) + Plastic (black)

Product Features
1. High-torque 25kg digital metal servo for powerful performance
Equipped with six 25.5 kg·cm high-torque digital metal-gear servos (operating voltage 4.8–7.2V). Features a metal gear and dual-bearing structure with a no-load speed of 0.145–0.185 sec/60°; capable of easily gripping heavy objects—ideal for DIY robot and robotic arm projects.
2. All-metal servo body + aluminum alloy housing for durability and heat dissipation
The servo body combines aluminum alloy (red) and plastic (black) to balance strength and weight. Each servo weighs only 62g (total assembly weight approx. 624g), ensuring excellent heat dissipation during prolonged operation and long-lasting durability.
3. Bluetooth wireless control + independent 6-axis operation; supports both programmed and manual modes
Includes a dedicated Bluetooth controller app for the 6-axis robotic arm (interface as shown), allowing independent control of the gripper, upper arm, forearm, middle arm, and left/right rotation. Supports speed adjustment, position saving, and motion playback; ideal for learning Arduino programming and manual teaching (teach-and-playback).
4. 180° wide-angle rotation with precise control (deadband of only 5µs)
Each servo supports a 180° rotation range with a pulse width of 500–2500µs (1500µs midpoint) and a deadband of just 5µs, ensuring accurate positioning. Features a metal 25T output shaft and M3 mounting hole for a secure, slip-free connection.
5. DIY assembly kit; assembled dimensions: 18 × 8.7 × 19.5 cm
Supplied as a kit of parts requiring self-assembly of the six servos and structural components, offering a complete hands-on building experience. The finished unit is compact—suitable for desktop display, educational demonstrations, maker competitions, and advanced projects for robotics enthusiasts.

Target Audience: Ages 16+

Package Contents:
Nano mainboard ×1
Nano expansion board ×1
Bluetooth module ×1
Metal digital servos ×6
5V step-down module ×1
Aluminum alloy frame ×1
Thickened base plate ×1
Cables/Wiring
Screws and fasteners