Liebherr introduces its smallest mobile construction crane
Equipment

Liebherr introduces its smallest mobile construction crane

Liebherr recently launched MK 73-3.1, a mobile construction crane said to be the smallest in Liebherr’s mobile construction crane family.

Mobile construction cranes are predestined to be used as taxi cranes and with this in mind, the MK 73-3.1 is designed for one-man operation. This crane is ready for use in around 10 minutes. Additional transport vehicles are not required for the MK73-3.1. The electrically operated crane can be supplied with site power or powered by its integrated generator. The single-engine concept, familiar from Liebherr’s mobile cranes, and its ECO mode feature ensure reliable travel and economical operation on site, the company said.

For the MK 73-3.1, Liebherr has chosen proven technology in a compact form. The small mobile construction crane combines all the features of its big brother, the MK 88-4.1. With a total length of 13.80 m, a width of 2.75 m and a height of 4.0 m, it is compact. It offers a 6-tonne maximum load capacity.

Reach options. To meet the typical demands of densely built-up inner city construction sites with projecting edges, this mobile construction crane has been designed with long reaches in mind. With a jib length of 38.5 m, it offers a jib head load capacity of 2,000 kg with corresponding additional ballast. In a 45-degree luffed jib position, the crane reaches a lifting height of 51 m and has a maximum lifting capacity of 2,800 kg; up to 1,850 kg at the jib head.

Electric crane operation. Like the MK 73-3.1 operates electrically on site, either via site power supply or its integrated electric generator. This aims to have a quiet and emission-free presence. The small mobile construction crane is also designed for operation with 63 or 32 amps. Working speed is in no way restricted when using the 32 amp option.

Extensive features. Highlights include an adjustable lift cabin and modern camera systems—both load and undercarriage are always in view. Assistance systems such as the Micromove fine positioning mode ensure precise load handling. Five steering programmes with rear axle steering and half-sided support enable the crane to be used on particularly tight construction sites.

Additional options such as the load plus, load curve and trolley travel gear is also added. This enables up to 50% heavier loads to be lifted in a 45 degree luffed position.

Single-engine concept. The single-engine concept already used by the mobile cranes of sister company Liebherr-Werk Ehingen GmbH, has been adopted for the MK 73-3.1. The electric generator on the MK 73-3.1 mobile construction crane is operated by the travel motor in the undercarriage. The ECO mode also comes into play here.

The Liebherr Group is a construction equipment manufacturer.

Written from a news release.

Liebherr recently launched MK 73-3.1, a mobile construction crane said to be the smallest in Liebherr’s mobile construction crane family. Mobile construction cranes are predestined to be used as taxi cranes and with this in mind, the MK 73-3.1 is designed for one-man operation. This crane is ready for use in around 10 minutes. Additional transport vehicles are not required for the MK73-3.1. The electrically operated crane can be supplied with site power or powered by its integrated generator. The single-engine concept, familiar from Liebherr’s mobile cranes, and its ECO mode feature ensure reliable travel and economical operation on site, the company said. For the MK 73-3.1, Liebherr has chosen proven technology in a compact form. The small mobile construction crane combines all the features of its big brother, the MK 88-4.1. With a total length of 13.80 m, a width of 2.75 m and a height of 4.0 m, it is compact. It offers a 6-tonne maximum load capacity. Reach options. To meet the typical demands of densely built-up inner city construction sites with projecting edges, this mobile construction crane has been designed with long reaches in mind. With a jib length of 38.5 m, it offers a jib head load capacity of 2,000 kg with corresponding additional ballast. In a 45-degree luffed jib position, the crane reaches a lifting height of 51 m and has a maximum lifting capacity of 2,800 kg; up to 1,850 kg at the jib head. Electric crane operation. Like the MK 73-3.1 operates electrically on site, either via site power supply or its integrated electric generator. This aims to have a quiet and emission-free presence. The small mobile construction crane is also designed for operation with 63 or 32 amps. Working speed is in no way restricted when using the 32 amp option. Extensive features. Highlights include an adjustable lift cabin and modern camera systems—both load and undercarriage are always in view. Assistance systems such as the Micromove fine positioning mode ensure precise load handling. Five steering programmes with rear axle steering and half-sided support enable the crane to be used on particularly tight construction sites. Additional options such as the load plus, load curve and trolley travel gear is also added. This enables up to 50% heavier loads to be lifted in a 45 degree luffed position. Single-engine concept. The single-engine concept already used by the mobile cranes of sister company Liebherr-Werk Ehingen GmbH, has been adopted for the MK 73-3.1. The electric generator on the MK 73-3.1 mobile construction crane is operated by the travel motor in the undercarriage. The ECO mode also comes into play here. The Liebherr Group is a construction equipment manufacturer. Written from a news release.

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