KUKA KR4 R600-3 4kg Payload Handling Robot 601mm Reach 6-Axis Compact Overview This KUKA KR4 R600-3 4kg Payload Handling Robot 601mm Reach 6-Axis Compact is a industrial robot configured for assembly and handling and supplied ready for integration into new or existing production cells. It combines a 4 kg rated payload, with a 601 mm working reach, keeping motion stable and output consistent across long production runs. +/-0.02mm positioning accuracy supports demanding