KUKA KR 300 R2500

The KUKA KR 300 R2500 is a six-axis industrial arm rated to move 300 kg, and KUKA frames it for heavy parts and tooling. Its 2496 mm reach opens a broad work envelope for shifting large components across a cell. That puts it firmly in the high-payload tier, where the work is moving mass rather than chasing speed.

Repeatability comes in at 0.06 mm, which is tight for an arm hauling this kind of load. A rigid arm structure is what holds that repeatability steady under bulky tooling, and it's the trait to lean on when the end effector is large. The robot itself weighs 1120 kg, so it needs room and a plan in the cell layout.

That mass, together with the loads it swings, means a reinforced foundation is part of the install, which the record calls out directly. Careful leveling at commissioning protects the accuracy the arm is capable of. It mounts on the floor or from the ceiling, giving cell designers a choice in how heavy parts route through the station.

On the line it lands in palletizing and general material handling, stacking and moving loads lighter arms can't take. It also runs press tending, loading and pulling parts around heavy stamping equipment. Cycle times ease as the load nears the 300 kg ceiling, so it's worth sizing the payload with headroom.

For lighter transfer duty it covers machine tending around large equipment as well. On a heavy arm that runs continuously, keep reducer wear and gearbox backlash checks on a steady preventive maintenance schedule.