Kato NK5000

The Kato NK5000 is a 500-ton capacity truck crane, once the largest mobile crane in Japan before being surpassed by the Tadano AR5500M. Designed for heavy-duty lifting operations, it was widely used in major infrastructure and industrial projects. The crane’s high lifting capacity, advanced hydraulic system, and strong mobility made it one of the most powerful truck cranes in the country.

Built on a 12×4 carrier, the NK5000 is equipped with a high-performance Nissan Diesel RH10 engine, delivering 450 horsepower at 2,200 rpm. This engine provides the power needed for long-distance travel and on-site maneuverability. The crane’s hydro-pneumatic suspension system enhances stability, ensuring smooth operation on uneven terrain. With a maximum speed of 60 km/h and a minimum turning radius of 11.8 meters, the NK5000 offers excellent transportability despite its large size.

The crane features a multi-section telescopic boom, extending from 13.35 meters to 22.35 meters. It can lift 500 tons at a 3-meter radius with the shortest boom and 300 tons at a 6-meter radius when fully extended. For extended reach and complex lifting applications, the NK5000 is equipped with various heavy-lift jibs, ranging from 18 meters to 72 meters in length. Additionally, a super heavy-lift jib configuration provides extra lifting height for large-scale projects.

The NK5000 includes multiple hook block options for different load capacities, ranging from 500 tons with 28 sheaves to 12 tons with 2 sheaves. It also has a hydraulically adjustable boom elevation range of -1.8° to 83.5°, allowing for precise positioning of loads. The crane’s powerful winch system ensures smooth and efficient lifting operations, with a boom hoist system designed for quick extension and retraction.

To maintain balance and stability during lifting, the NK5000 is equipped with a counterweight system totaling 185 tons, which can be adjusted based on lifting requirements. The crane also features advanced safety systems, including an Automatic Crane Safety System (ACS) that prevents overloading and provides real-time load monitoring.

The Kato NK5000 was a landmark achievement in Japan’s crane industry, offering exceptional lifting power and transport efficiency. It was a preferred choice for heavy construction projects, including bridge construction, power plant installations, and large-scale infrastructure developments. Despite newer models surpassing its capacity, the NK5000 remains one of Kato’s most iconic truck cranes, reflecting the company’s commitment to innovation and reliability.