The 3ARM® Spider 300R is a high-capacity electronic rope balancer built for rail-mounted systems, delivering ergonomic lift assist and zero-gravity handling of loads up to 300 kg. Designed for extended production lines, it enables smooth manual positioning, precise load control, and endless rotation along the rail path.
Featuring self-balancing technology, adjustable lifting speeds, and intuitive programming, the Spider 300R operates as a robust industrial manipulator. Its customizable software and compatibility with multiple end effectors make it ideal for heavy-duty material handling, assembly processes, and manufacturing ergonomics improvement.

The 3arm Smart Lift Spider 300R is an electronic rope balancer designed to be mounted on rail systems for manually handling loads up to 300kg.

SPIDER 300R


SPIDER 300R
The 3arm Sspider features make this rope balancer unique.