42 K.1 (FU) Liebherr crane - load chart, specs & dimensions (2004 - 2017)

The new operating support

The new operating support has been modified with respect to safety and functionality. The inner and outer towers are now positively clamped to ensure noiseless operation.

Compact and quick to transport.

The new 42 K.1 fast-erecting crane is an extremely compact piece of equipment. During road transport, it has the lowest overall length of all cranes in its class. It is transported on the road as a complete, ready-to-erect unit, ensuring that it can be used soon after arrival at the site. The 90° steering angle of the steered axle allows optimum manoeuvrability on the building site. Depending on where it is to be used, the crane can be transported on slow-speed or high-speed axles.

Rapid, user-friendly erecting.

The entire erecting linkage is new. The 42 K.1 is now erected by means of two double arms. This well-designed erecting linkage allows the 42 K.1 to lift itself automatically from its axles to its support spindles. Only one person is needed to erect the crane ready for use within a very short time. The crane is erected at the touch of a button from the control panel or a radio remote control.

Highly adaptable.

The 42 K.1 fast-erecting crane is ideal for the widest possible range of construction tasks. In addition to seven hook heights, it offers the time-tested 30° angled jib position and the 45° obstacle-avoidance position. These features make this crane extremely adaptable and cost-effective. The outstanding adaptability of the 42 K.1 fast-erecting crane makes it ideal for the widest possible variety of construction tasks. The 42 K.1 integrates hook heights of 12.0 m, 15.0 m, 17.0 m and 20.0 m. Tower sections can be inserted to provide additional hook heights of 22.0 m, 24.0 m and 26.0 m. Because the retracted hook height is just 12.0 m, this fast-erecting crane can also be used without difficulty beneath overhead wires and other obstacles. This is a crucial advantage in practical applications. Depending on your requirements, working radii of 25.5 m, 30.0 m, 33.0 m and 36.0 m are available. The 30° angled jib position and the 45° obstacle-avoidance position allow you to operate the crane while avoiding virtually any obstruction. This outstanding adaptability is another factor that ensures your financial success.

Perfect down to the smallest detail.

Tried and tested details such as the Quick Connection system, automatic ballast slab centring, jib guy rods and the optimised operating support help to ensure that this new fast-erecting crane is ready for action in no time. This is where you benefit from many years of experience in the construction industry.

Straightforward ballasting.

Interaction of the hoisting and erecting winches ensures rapid and straightforward ballasting. The erecting winch moves the tower to a very large working radius for ballasting. The ballast slabs are positioned with the hoisting winch. The new semi-automatic ballasting device, in conjunction with centring of the 32 TT ballast slabs, gives you discernable time advantages. The ballast slabs can be lifted from all sides of the truck, with a working radius for ballasting of up to 5 m. Operation of the semi-automatic ballasting tongs is remarkably simple. They are simply placed in position on the ballast, released by hand, and the remainder of the process is automatic. Automatic centring means that re-alignment of the individual ballast slabs is not required. Ballast slabs from many Liebherr fast-erecting cranes can also be used with this crane – a further benefit that helps to reduce crane fleet costs.

Quick climbing.

42 K.1 crane hook heights can be adapted to suit site requirements by inserting three 2 m tower sections, thus enabling the 42 K.1 fast-erecting crane to reach hook heights of 22.0 m, 24.0 m and 26.0 m. The tower sections are inserted from below by means of the quick climbing device. The tower section is bolted to the inner tower and telescoped upwards using the erecting hook block. To minimise costs in the crane park, tower sections from 35 K and 40 K models can also be used with the new 42 K.1 fast-erecting crane: an additional building block in Liebherr’s modular system.

The Quick Connection system.

The tower is locked to and released from the slewing platform by an automatic Quick Connection system. As an additional safety precaution, wedges are then driven in with a hammer to secure the spring-loaded taper pins. The inner tower is locked fully automatically to the outer tower.

Automatic rope re-reeving

This crane is equipped with Liebherr’s patented automatic rope re-reeving system. The crane operator only needs to press a button on the control panel or the remote control to switch from double to quadruple hoisting rope reeving or back again. This permits an optimal hoisting speed for the given task. Automatic rope re-reeving offers you crucial time advantages in your work.

The hoisting and erecting winches

The hoisting and erecting winches have separate drives. For continuously variable hoisting and lowering speeds from 0 to 50 m/min, hoisting gear with a frequency converter is available as an option. Precise positioning of the load to an accuracy of a few millimetres is guaranteed. Liebherr manufacture these drives itself.

The EDC slewing gear

The 42 K.1's standard equipment includes patented EDC slewing gear. Electronic monitoring allows the crane operator to reverse the slewing gear by applying the power in the opposite direction. Continuously variable working speeds, automatic damping to prevent load oscillation, and electronic wind-load regulation are critical advantages for safe operation on the building site. The electronic control system permits extremely sensitive, jolt-free slewing movements, allowing you to position your loads safely, precisely, and accurately.

The trolley travel gear

The trolley travel gear has an impressively sensitive movement, with two speeds. A more powerful drive is not required for the 30° angle jib position.