Liebherr has introduced a new dragline for wet or dry mining applications.
The LMD 1200 (Liebherr Mining Dragline) is equipped with a boom system that can be configured to suit the operating conditions to achieve optimum performance.
The LMD 1200 delivers a maximum lifting capacity of 30 tonnes with a working radius of 40 metres meets the requirements of large mining projects.
Thanks to its robust steel construction, the LMD 1200 mining dragline is reliable and designed for continuous use in extreme weather conditions, which ensures high availability and a long service life.
The LMD 1200 can be equipped with a dragline of up to 12.25 cubic metres and can dig to depths of 25 metres.
The Liebherr twin hydraulic motors automatically adjust the speed of the winches to the required digging force to ensure even and optimum filling of the dragline and significantly increases the handling capacity. In combination with the powerful swing gear, this results in shorter working cycles and higher productivity.
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The LMD 1200’s fairlead 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 extend the service life of the ropes. The new rope lock allows for the rope to be changed quickly and so reduces downtimes.
Mobility concept
The drive train is functionally harmonized thanks to specially developed hydraulic components
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 1,000 litres and an 8,270-litre additional tank allow the LMD 1200 to run continuously for up to one week without refuelling.
The mobility concept of the LMD 1200 enables it to be driven and relocated within the mine with the boom lowered. The result is a reduction in time and in the production-intensive mining industry. The entire mining dragline can be assembled or disassembled within a week – a clear advantage considering the large size and operating weight of 360 tonnes.
Operator comfort
When developing the LMD 1200, great importance was attached to a high level of driver comfort. The spacious cab is deisgned to reduce noise and offers an excellent overview of the working area. Cameras on the machine extend the operator’s field of vision and enable a safe all-round view as well as the monitoring of the winding of the ropes on the winches.
Tinted safety glass offers sun protection and air conditioning system ensures a comfortable working climate. The orthopaedic driver’s seat can be heated, cooled or ventilated as required. The cab is equipped with a second driver’s seat for practical training of new operators. A well thought-out lighting concept for the boom, cab and access ways to the machine ensures optimum visibility when working at night.
