Kato NK-70M

The Kato NK-70M is part of Kato’s line of compact truck cranes, specifically engineered for the 4.9-ton capacity class. Introduced to serve the needs of light and medium-duty lifting applications, particularly in urban and restricted-access job sites, this model combines practical reach, ease of mobility, and dependable hydraulic performance.

The crane is equipped with a three-section fully hydraulic telescopic boom that extends from 6.4 meters to a maximum of 14.7 meters. For extended reach applications, the NK-70M can also be configured with a 5.6-meter jib, resulting in a maximum boom plus jib length of 20.8 meters. The boom extension and retraction are achieved smoothly in approximately 24 seconds, thanks to the reliable telescoping cylinder and hydraulic control system.

The NK-70M’s hoisting mechanism is built for efficiency, offering a main winch rope speed of 75 meters per minute with three layers of rope winding. The auxiliary winch also delivers comparable performance, ensuring flexibility for dual-hook operations. Slewing is driven by a planetary gear reduction mechanism and a high-pressure double-acting hydraulic motor, providing steady rotation control during lifts.

The crane features a wide outrigger span of 3.75 meters for stable operation and is supported by a truck chassis typically configured with a diesel engine (details vary by region and production year). The engine provides sufficient power for both travel and crane operation, with smooth hydraulic pump drive ensuring responsive multi-function control.

Safety features include an automatic moment limiter (ACS system), boom angle indicators, hydraulic locks, and optional upgrades such as a crane cab heater and radio. The NK-70M is recognized for its compact carrier dimensions, making it particularly effective for jobs in tight quarters, such as residential construction, small commercial projects, and utility maintenance tasks.

Overall, the Kato NK-70M stands as a practical and reliable solution in the 4.9-ton class truck crane market, balancing lifting performance with maneuverability and user-friendly operation.