[Open Box] 6-Axis Desktop Robotic Arm, Assembled

Brand: SainSmart SKU: 101-20-127*SEC Variants ID: 39297849327695

Production Quality

Structure consists of different thickness of CNC machined PVC plates, making it a  durable and quality product guaranteed. The main joints utilize metal gear servos (MG966R and SG90), ensuring a reliable and smooth operation.

Motion Flexibility

Quality servos, precision structure, and 6 axis design allow an immense range of motion and flexibility within its reasonable limits.


Servos are completely programmable using any microcontroller and code. We provide a lot of source code on our wiki webpage(SainSmart Wiki)for the Uno R3, making this unit suitable for beginners! (Uno R3 and Shield are not included; purchase here UnoR3 and Shield)

All the parts are fully assembled, allowing for immediate programming and use.

Stem Education

Simulate this real palletizing robot arm and learn about the basic construction of a real robot arm. A fun STEM educational experience in mechanical engineering and electronics.

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Open Box items are final sale with 6-month warranty. No exchange or return.

SainSmart 6-Axis Desktop Robotic Arm

SainSmart 6-Axis desktop robotic arm is an educational and great kit for both beginners and professionals to learn robotics, electronic and programming. Based on the operation of the Uno R3 controller board, you can design lots of motion for the robotic arm, just release your imagination. The Uno R3 controller board also can be replaced to Raspberry Pi Zero according to your need. In a word, this kit is full of possibilities to achieve your creativity.

Come with a fully assembled kit, you can enjoy the journey of programming right out of the box.

Learning While Playing

Learning Coding has never been so easy and fun, just follow our tutorial step by step, you can design a set of complete motion for the robotic arm. This is also a great kit for parents to cultivate their children’s interest in science and provide a good chance to learn coding with kids, enjoy the family time!

Excellent Quantity Control

Structure consists of different thickness of CNC machined PVC plates, making it a durable and quality product guaranteed. 6 axis design allow an immense range of motion and flexibility within its reasonable limits.

Simulate the real robotic arm

In order to help people to learn the basic structure of robotic arm, the SainSmart 6-Axis robotic arm is based on a realistic robotic arm design. What is more, it can simulate every movement like the real robotic arm. This really helps you to know how the robotic arm work.


This SainSmart robotic arm operates on six axes, meaning you can program it to move forward and back, up and down, and side to side. Compatible with the Arduino, it simulates a real palletizing robot arm structure with durable PVC material and a host of servos including four MG996 servos and two SG90 servos. The beauty of this arm is that it comes fully assembled, so little setup is required aside from the actual programming. See the video below for more details.


This video above is a demo of how to connect wires and program the robotic arm. 

The model is designed for a controller compatible with Arduino but you can also check out the
tutorial here for how to control it with Raspberry Pi (ZERO W) : http://bit.ly/2oDk8Oa

And the video below shows the web interface test.


MG996 Servo

  • Size: 40.7*19.7*42.9mm
  • Working torque: 9.4-13kg/cm
  • Respond rotation speed: 53-62R/M
  • Working temperature: -30~+60°C
  • Dead zone: 5us
  • Plug: JR, Futaba
  • Rotation angle: 180 degree
  • Analog servo
  • Working current: 100mA
  • Working voltage: 5-7.2V
  • Metal gear, coreless motor, two ball bearing
  • Operation speed: 0.17s/60degree(4.8V); 0.14S/60degree(6.0V)


SG90 servo

  • Size: 23*12.2*29mm
  • Weight: 9g
  • Working torque: 1.6kg/cm
  • Respond rotation speed: 0.12-0.13s/60degree
  • Working temperature: -30~+60 C
  • Dead zone: 5ms
  • Plug: JR, Futaba
  • Rotation angle: 180 degree
  • Analog servo
  • Working current: 100mA
  • Working voltage: 3.5-6V
  • Metal gear


    • 4x MG996R servo
    • 2x SG90 servo
    • 1x Structural Frame
    • Bearings
    • All necessary screws