7 Dof Robot Arm Metal Manipullator Mechanical Arm with 7pcs DT-3316 15kg Digital Servos for Arduino Robotic Education

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7 degrees of freedom mechanical arm, hard aluminum alloy material, black/yellow/blue/silver.

The seven-degree-of-freedom manipulator model developed by DOIT is able to control the movement and grabing of the robotic arm through the WiFi control unit. Mechanical arm 7 dof manipulator, six degrees of freedom mechanical arm, all metal mechanical arm, at the bottom of the joints are made of metal gear steering gear DT-3316, big strength, beautiful and practical structure, arm roughly dimensions as shown in the picture, the size will be small change owning to the different batchs.

DT-3316 servo parameters:

  • Dimension: 40mm x 19mm x 43mm   

  • Weight: 55g   

  • Operating Speed: 0.17sec / 60 degrees (4.8V no load)   

  • Operating Speed : 0.13sec / 60 degrees (7.2V no load)   

  • Stall Torque : 12 kg-cm (180.5 oz-in) at 4.8V   

  • Stall Torque : 15kg-cm (208.3 oz-in) at 7.2V   

  • Operation Voltage : 4.8 - 7.2Volts   

  • Gear Type: All Metal Gears   

  • Original box: NO   

  • Color: Black   

  • Connector Wire: Heavy Duty, 11.81" (300mm)       

Package Included:

  • 1 set robot arm structure

  • 7pcs DT-3316 servos

  • Free gift: metal servo horns

  • 1 set screws


  • For the convenience of transport, the robot arm is the bulk delivery. Please contact us to get the installation manual or visit our official wiki: wiki.doit.am.



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