KUKA KR 6 R900 (Agilus)

The KUKA KR 6 R900 sits in the Agilus family, KUKA's line of small, quick six-axis arms. It carries 6 kg out to a 901 mm reach and holds ±0.03 mm repeatability, the accuracy band small-part assembly cells look for. That combination puts it squarely in fast pick-and-place and machine tending work.

At 52 kg the arm is light enough to mount on the floor, on a wall, or from the ceiling, so you can orient it around the fixtures. That flexibility helps when you're packing an arm into a tight work envelope. Speed is the Agilus selling point, and this size class is where it shows.

In its bracket it lines up against the FANUC LR Mate 200iD, the tabletop benchmark for tending and assembly. Both target the same dense, small-part cells, so the choice often comes down to controller preference and cell layout rather than class. If you're already running KUKA's KR C4 compact platform, staying in-family keeps programming and spares consistent.

The body carries an IP54 rating, a figure worth checking against your cell's environment before you finalize the layout.

Beyond assembly it takes on light material handling, the quick, repetitive transfer a small fast arm does well. Its main trade-off is payload: at 6 kg you size the gripper and part budget carefully before committing. For most tending and handling cells that limit is fine, and the speed is what earns the arm its place on the line.