Deciding between a robot arm for the workbench and a robot arm for the factory floor can feel like comparing two tools that happen to share a name. In the industrial robotics cobots category, the Yanmis 6DOF Mechanical Arm Claw Kit and the FANUC M-16IB/20 sit at opposite ends of both price and purpose. The Yanmis lists for $78.90 and is aimed at teaching and DIY demonstrations; the FANUC lists for $1,800.00 and is a used 2005 industrial arm. The right choice depends on whether you need a learning tool or a mechanical workhorse.
Quick Verdict
If you want a low-cost, hands-on platform to learn how a robotic arm moves, assembles, and grips, choose the Yanmis 6DOF Mechanical Arm Claw Kit. If you are building an industrial robotic cell, the FANUC M-16IB/20 is the arm to build around.
Price and Spec Comparison
| Product | Listed Price | Price Bar | Best For |
|---|---|---|---|
| Yanmis 6DOF Mechanical Arm Claw Kit | $78.90 | Desktop teaching, DIY builds | |
| FANUC M-16IB/20 Industrial Robot Arm | $1,800.00 | Industrial retrofits, 20 kg payload tasks |
Where Each Product Wins
Yanmis 6DOF Mechanical Arm Claw Kit wins on price and accessibility. At its listed price, you get a complete kit with six servo motors, a 2 mm aluminum plate frame, and a disc-shaped chassis that lets the manipulator turn left and right smoothly. The listing describes it as an educational kit for adults, with a focus on mechanical skills. It's a ready-to-build educational platform, not an industrial loader.
FANUC M-16IB/20 wins on industrial capability. The arm's nameplate identifies the model, type, and serial number, and the listing describes it as a used industrial robot arm sold as arm only. It comes from FANUC's industrial line and is built for production-scale payloads.
Product Notes
Yanmis 6DOF Mechanical Arm Claw Kit

The Yanmis 6DOF Mechanical Arm Claw Kit is a hands-on entry point if you want to see a robot arm in action without a large investment. It uses six servo motors to demonstrate forward/back, up/down, and left/right gripping. The chassis is a disc form, and the steering joints use imported cup bearings, which keeps rotation smooth and centered. It is sold as a new, standard-packaged kit for adults, and assembly is required - so you get a real building project. The main limitation is that it is designed for college teaching and DIY production, not for industrial workloads. If you need to move heavy parts, this is not the arm for that. But as a classroom or hobby platform, it is a practical way to develop mechanical skills.
FANUC M-16IB/20 Industrial Robot Arm

The FANUC M-16IB/20 is the only one of the two that is meant for production-scale payloads, provided you can source the missing controller and cabling. This used 2005 arm is listed with model M-16IB/20, type A05B-1216-B202, and serial number R05476983. Its nameplate specifications include a 20 kg payload and six axes; the unit weighs 220 kg without the controller and 486 lbs per the listed dimensions. The arm shows cosmetic wear, paint loss, and signs of prior industrial use, and it is explicitly sold as arm only - no controller, teach pendant, or cables are included. For a buyer who already has the FANUC controller and accessories for this generation, this arm offers a heavy-duty foundation. The catch is that it is not plug-and-play: without the missing components, the arm won't run on its own.
Final Choice by Use Case
For classroom demonstrations or a first robot arm project, the Yanmis 6DOF Mechanical Arm Claw Kit is the practical pick. You get a complete kit that you assemble yourself, and the supplier describes it as a teaching/demonstration tool. For an industrial robot arm with genuine payload capacity, the FANUC M-16IB/20 is the stronger candidate - but only if you already own or can obtain the matching controller, teach pendant, and cables. The arm's design gives it a real place in a production line. If you need a complete, working robot right now, neither option is that: the Yanmis needs assembly, and the FANUC needs its missing electronics.