Kato KA-4000

The Kato KA-4000 represents one of the most powerful and versatile entries in Kato’s lineup of all-terrain cranes. Designed for heavy-duty lifting in a variety of industrial and infrastructure applications, this 400-ton class crane delivers a high level of performance through its strong lifting chart, flexible configurations, and robust mobility features. It is purpose-built to handle demanding tasks such as bridge construction, wind turbine installation, and large-scale plant work.

At the heart of the KA-4000 is a four-section fully hydraulic box-type telescopic boom, which spans from 13.2 meters to 40.2 meters. The boom is engineered with precision, offering a smooth hoisting motion between -1.2° and +83°, and achieves full elevation in just 122 seconds. This robust boom structure is complemented by Kato’s advanced hydraulic system that ensures reliable operation and consistent lifting performance even under high loads.

For extended reach and specialized lifting, the KA-4000 offers two types of jib configurations: the heavy tilt jib (HT Jib) and the heavy lift jib (HL Jib). The HT jib comes in 9-meter and 16-meter lengths with offset angles ranging from 8° to 45°, capable of lifting up to 65 tons at a 12-meter radius. For more complex or high-reach tasks, the HL jib spans from 18 to 63 meters and includes an 8.55-meter extension section. With the HL configuration, the crane can achieve an impressive maximum lifting height of 118.6 meters and a working radius up to 95 meters—well suited for tall structures or long-reach lifting.

The crane’s winch system is another strong point, consisting of hydraulic motors with built-in reducers and disc brakes, delivering a line speed of up to 160 meters per minute on five rope layers. These powerful winches support precise and efficient hoisting across a range of operating conditions.

To support the massive lifting capability, the KA-4000 is equipped with a carefully engineered counterweight system. Multiple configuration options are available depending on job site requirements, with selectable counterweight packages including 20t, 47.5t, 75t, 95t, 115t, and the full 135t setup. Combined with a selection of hook blocks ranging from 12 to 400 tons, the crane can be tailored for light or heavy lifts with ease.

The crane is powered by two independent diesel engines—one for the crane and one for the carrier. The upperworks are driven by a Nissan RF814 water-cooled V8 diesel engine producing 217 kW (295 PS) at 1950 rpm, while the carrier is powered by a more powerful Nissan RH10 V10 engine outputting 331 kW (450 PS) at 2200 rpm. Both engines are matched with large-capacity fuel tanks (300 liters each) for extended work cycles and long-distance travel.

Mobility is handled by a 7-axle chassis (KC-AL630YN), featuring hydro-pneumatic suspension and 445/95 R25 tires. The axle layout provides excellent weight distribution and maneuverability, with a maximum travel speed of 60 km/h and a minimum turning radius of 11.6 meters—impressive for a crane of this size. The axle configuration includes a combination of fixed and steerable axles to support tight navigation on constrained job sites.

Safety and operational comfort are top priorities in the KA-4000. Kato’s ACS (Automatic Crane Safety) system comes standard, providing real-time load monitoring, over-lifting prevention, automatic winch lockouts, and voice alarm alerts. Additional convenience and safety features include a boom-mounted camera, air-conditioned cab, and remote-controlled searchlight, all designed to enhance visibility and control during complex lifts.

With its exceptional lifting performance, flexible boom and jib combinations, and roadable 7-axle carrier, the Kato KA-4000 is a top-tier all-terrain crane suited for the most challenging projects. Whether operating in wind power installations or infrastructure megaprojects, the KA-4000 provides the reach, capacity, and reliability that heavy lift contractors require.