CKE1800 Kobelco crane - load chart, specs & dimensions (2017 - 2026)

Swing System

Swing unit is powered by hydraulic motor driving spur gears through planetary reducers (2 sets). The swing system provides 360° rotation. The swing parking brake is a spring-set, hydraulically released multiple-disc brake mounted on the swing motor. The swing circle features a single-row ball bearing with an integral internally cut swing gear. Additionally, the swing lock is a manually operated, four-position lock for transportation. The swing speed is 2.6 min⁻¹ {rpm}.

Lower Structure

The lower structure consists of a steel-welded carbody with axles. Crawler assemblies are designed with a quick disconnect feature for individual removal as a unit from the axles. Crawler belt tension is maintained by hydraulic jack force on the track-adjusting bearing block. The carbody weight is 20.0 tons. The crawler drive features an independent hydraulic propel drive built into each crawler side frame. Each drive consists of a hydraulic motor propelling a driving tumbler through a planetary gear box, with the hydraulic motor and gear box built into the crawler side frame within the shoe width. Crawler brakes are spring-set, hydraulically released parking brakes built into each propel drive. The steering mechanism utilizes a hydraulic propel system that provides both skid steering (driving one track only) and counter-rotating steering (driving each track in opposite directions).

Hydraulic System

Four variable displacement piston pumps are driven by heavy-duty pump drive. Two of the variable displacement pumps are used in the main hook hoist circuit, auxiliary hook hoist circuit, third hoist circuit, and each propel circuit. One of the other two pumps is used in the boom hoist circuit, and the other is used in the swing circuit. Control: Full-flow hydraulic control system for infinitely variable pressure to front and rear drums, boom hoist brakes, and clutches. Controls respond instantly to the touch, delivering smooth function operation. Cooling: Oil-to-air heat exchanger (plate-fin type). Filtration: Full-flow and bypass type with replaceable element. Electrical system: All wiring corded for easy servicing, with individual fused branch circuits.