The Kobelco SK135SR is designed for buyers who need the working capability of a 13- to 14-ton excavator while keeping rear swing compact. It is especially relevant for road work, utilities, civil engineering, foundations, site preparation and other jobs where a conventional excavator may need too much clearance behind the machine. For a used buyer, the main task is to identify the exact generation and specification before comparing price. SK135SR-3, SK135SR-5 and SK135SR-7 machines differ in operating weight, engine output, hydraulic equipment and emissions systems. Standard, long-carriage, crane, dozer, telescopic-arm and forestry versions can differ further. This guide explains where ...