Liebherr's flexible new mining dragline lifts 30 tonnes

Liebherr has launched its new machine, the LMD 1200, built specifically to extract raw materials in demanding mining applications. A variable boom system for dragline operation, easy relocation within the mine, and the steel construction ensure flexibility in extreme weather conditions. 

Features of the LMD 1200 mining dragline 

Developed for applications with draglines for wet or dry mining, the boom system can be configured flexibly depending on the operating conditions to achieve optimum working performance. The maximum lifting capacity of 30 tonnes with a working radius of 40 metres meets the requirements of large mining projects.

The LMD 1200 can be equipped with a dragline of up to 12.25 cubic metres and can dig to depths of up to 25 metres. The Liebherr twin hydraulic motors automatically adjust the speed of the winches to the required digging force. This system ensures even and optimum filling of the dragline and significantly increases handling capacity. 

The fairlead of the LMD 1200 consists of a pivoting roller head with rope pulleys and guide rollers, as well as the bearing and an automatic positioning unit. This leads to a wear-reducing spooling of the grab rope onto the rope drum. The large rope diameter and standard grooving significantly extend the service life of the ropes. The new rope lock allows for the rope to be changed quickly and reduces downtime.

Increase mobility improves uptime for operators 

The combination of engine power and reduced hydraulic pressure enables efficient operation with both low fuel consumption and high handling capacity. The integrated tank with a capacity of 1000 litres and an 8270-litre additional tank allows the LMD 1200 to run continuously for up to one week without refuelling. The core components include a high proportion of Liebherr's own developments, which increases the availability of parts and thus the operational readiness.

Mobility is apparent across the machine's design — the LMD 1200 can be relocated within the mine, and with the boom lowered, which saves time and money. The entire mining dragline can be assembled or disassembled within a week. 

Prioritizing operator comfort 

Driver comfort was prioritized when designing the LMD 1200. The spacious cabin features a noise-optimized design with a clear overview of the working area. Cameras on the machine extend the operator's field of vision and allow a safe all-round view as well as monitoring of the winding of the ropes on the winches. 

As well, tinted safety glass protects operators from the sun, and the air conditioning system ensures a comfortable working climate. The orthopaedic driver's seat can be heated, cooled, or ventilated as required. The cabin is equipped with a second driver's seat to train new operators in the field. A lighting concept for the boom, cabin, and access ways to the machine ensures visibility when working at night.