Kato KR70H-L (SL700R)

The Kato SL-700R (KR70H-L) is a high-performance 70-ton rough terrain crane, developed for the Japanese domestic market and launched in November 2008. It is built on a 4-axle chassis, providing superior off-road capability and enhanced straight-line stability even before engaging its four-wheel drive mode. This configuration sets it apart from the export-focused Kato SR700L, which uses a 2-axle layout.

Powering the SL-700R is a common-rail diesel engine that complies with Japan’s 2006 special vehicle exhaust emissions regulations, ensuring eco-friendly operations. The engine delivers a maximum output of 272 kW at 2,000 rpm and a torque of 1,510 Nm at 1,600 rpm, supplying ample power for both driving and lifting operations. It is also equipped with a large 370-liter fuel tank, supporting extended on-site operations without frequent refueling.

The crane features Kato’s proprietary SUPERBOOM technology, a high-rigidity 6-section telescopic boom capable of reaching a maximum boom length of 44.5 meters and a lifting height of 45.5 meters. The boom has a maximum elevation angle of 84°, enhancing performance when lifting loads in close proximity to the crane’s chassis. The crane achieves its full rated capacity of 70 tonnes at a 2.5-meter radius, demonstrating strong lifting power in confined working zones.

To further expand its working envelope, the SL-700R supports the Super Luffing (SL) Jib system, available in 8.3 to 17.5-meter lengths. The jib can be offset up to 60°, and when combined with the main boom, provides a maximum lifting height of 62.7 meters—well-suited for urban or infrastructure projects requiring high vertical reach.

The SL-700R incorporates the latest in crane control systems with Kato’s ACS (Automatic Crane System), now upgraded with a large 8.4-inch color touchscreen display. The interface supports real-time load monitoring, operational diagnostics, and offers intuitive controls for both beginner and experienced operators. An external ACS display device is also included for ground-based monitoring during crane operation.

Further enhancing its usability, the crane is outfitted with a variety of standard and optional features, such as anemometer (wind speed monitor), remote-controlled searchlights, and outrigger floats compatible with aluminum decking, offering added flexibility and safety in setup.

In summary, the Kato SL-700R is a modern, high-capacity rough terrain crane that combines off-road performance, lifting efficiency, and advanced operator features in a compact and highly maneuverable package. Its SUPERBOOM and Super Luffing systems, combined with a robust engine and digital control interface, make it an ideal solution for demanding construction, energy, and industrial lifting applications.