LHM Mobile Harbour Cranes
LHM 420 AKR 2
Table Of Contents 1 Product Range ................................................................. 4 2 Structure Overview................................................. 6 3 Modularity Redefined ......................................... 7 4 Applications ..................................................................... 8 5 Practical Solutions .................................................. 14 6 Undercarriage ..............................................................
1 Product Range Through many years of experience and technology strictly orientated towards customer requirements, a range of products has been created which sets new standards in innovation, quality, mobility and flexibility. The LHM’s extreme flexibility makes it a universal allrounder and key asset for handling everything, from containers to bulk goods, general cargo and even heavy lifts up to 208 tonnes.
LHM 120 Radius: 30 m Max. capacity: 42 t LHM 180 Radius: 35 m Max. capacity: 64 t LHM 280 Radius: 40 m Max.
2 Structure Overview Liebherr mobile harbour cranes use the most advanced design, engineering and production technology and consist of the following main constructional groups: Optimized boom lengths (for practical applications) Closed tower design (with weatherproof access to tower cab) Tension luffing cylinder (for more safety during operation) Tower extension 4.
3 Modularity Redefined The Liebherr mobile harbour crane concept as a whole is characterized by an outstanding modularity regarding customer and port requirements. The undercarriage is a patented Liebherr mobile harbour crane chassis where the number of individually mounted sets of four wheels each can be easily adapted to comply with the most stringent quay load restrictions. Alterna-tively, the basic undercarriage concept can be replaced by a portal or a barge.
4 Applications The range of Liebherr mobile harbour cranes is suited exactly to the demands of the ship, port and transport industries. Liebherr offers an optimum solution for every type of vessel, for every cargo and every size of port or stevedore. Container Handling Due to strikingly short acceleration times of all crane motions, which are precisely and accurately monitored by the Litronic® control system, Liebherr emphasize their peak position in container handling.
LHM 550 Portuaria Lirquen 9
Bulk Handling The optimised interaction between powerful hydrostatic transmission and advanced Liebherr electronics ensures short, productive working cycles in bulk handling. Independent of whether using a motor grab or a four-rope grab, all important handling parameters such as the volume to be lifted with each grab, the opening/closing and hoisting speeds, simultaneous functions, winch synchronisation etc. are optimized using specially developed Liebherr electronics.
LHM 180 TMB 11
Project Cargo and Heavy Duty General Cargo Safety and precision are the most important criteria when lifting heavy goods. The hydrostatic drive concept in connection with closed hydraulic circuits guarantees immediate system reaction times for rapid and safe working cycles. Depending on the type, Liebherr mobile harbour cranes can lift up to a maximum of 208 tonnes. The endurance and stability required especially for this kind of cargo handling has been strongly considered as a basic concept.
LHM 600 RHB 13
5 Practical Solutions Liebherr develops and produces special designs and solutions to meet particular requirements outside the norm, supplemented by a wide variety of lifting appliances and equipment.
LPS The Liebherr Portal Crane LPS is an efficient combination of space-saving portal undercarriage (mounted on rails) and a flexible mobile harbour upper carriage. Customer-specific requirements such as permissible quay and rail loadings, track gauges, clearance heights are individually adapted. Particularly on narrow quays, individual portal solutions permit railway trains and road trucks to travel below the portal.
6 Undercarriage – The Ultimate Travelling System Varying design and construction methods of quays and terminals throughout the world have led Liebherr to a unique undercarriage design. Having turned away from a fixed axle concept, individually mounted sets of four wheels each enable movement in all directions. Individual Wheel Sets Tyres During steering operation all driven wheel sets are individually controlled and steerable.
Outstanding Mobility Liebherr mobile harbour cranes are characterised by their outstanding mobility. Due to the system of independent and individually steerable wheel sets (no additional infrastructure e.g. rails or power supply are required) and a very short undercarriage not only are the smallest turning circles possible but also longitudinal and diagonal movements of up to 135°.
Hydraulic Load Distribution The modular undercarriage concept allows further reduction of quay loads by installing additional wheel sets to comply with the most stringent quay load restrictions. During travelling hydraulic suspension guarantees optimum pressure distribution on uneven ground and avoids overloading of the individual wheel sets and of the quay structure.
X-shaped Support Base The operational position of the crane can be adapted to the quay requirements on the basis of an X-shaped stabiliser arrangement (quadratic and rectangular support is possible) and different sizes of supporting pads depending on the condition of the quay. A special Liebherr feature is the very solid propping system with four swing-out arms forming a cruciform propping configuration.
7 Slewing Platform The slewing platform is designed to house the diesel-hydraulic power pack, the winches, the counterweight, the slewing gears and the electric control cabinet. Machinery House The front part of the slewing platform contains the diesel-hydraulic power pack. This machinery house is sound insulated and fully protected against any kind of corrosion using Glass-Fibre Reinforced Plastic (GFRP). Winch Frame The winches are located within the rear part of the slewing platform.
Machinery house – diesel engine and splitter gearbox 21
Electric Switch Compartment Cooling and Ventilation System Situated on the right side of the slewing platform is the electric switch compartment, containing the in-house designed Liebherr Litronic® crane control system (VMECAN-Bus 2-line). The cooling system for the engine water and the engine charge as well as the hydraulic oil cooler are situated outside on top of the slewing platform (for working conditions above 50°C).
Drive Concept - Advantages Of Liebherr Hydrostatic Power Transmission The Liebherr hydrostatic drive is undeniably the most reliable and high performing drive system for every mobile harbour crane due to rapid achievement of high performance, long-term durability, low maintenance costs and a series of operation-specific advantages such as outstanding acceleration and deceleration. This means higher turnover in shorter periods and proven savings for the customer.
8 Tower and Boom Tubular Tower Design The submerged-arc welded pipe construction, a torsionally rigid design, is part of a unique stress-flow system absorbing all static and dynamic demands and distributing the load as best as possible onto the slew ring bearing. The spiral staircase is well lit with handrails and kickplates, leading to the tower cabin. Access to the upper tower platform and rope pulleys is also gained through this route.
Cable drum and reel Tubular tower design: interior view Tension luffing cylinder 25
9 Driver Comfort The tower and optional slewing platform cabin are fully equipped allowing the operation of all crane functions including travel and supporting options. The design of the tower and the slewing platform cabin was driven by the needs for visibility, comfort and operability.
Optimal forward mounting of cabin 27
10 Environmental Record With its headquarters located in an environmentally protected area, ecological issues have always been high on the agenda for Liebherr-Werk Nenzing. The implementation of economy software, bio-degradable oils and special noise insulation throughout its mobile harbour crane range are just a few examples of Liebherr’s ecological awareness.
Liebherr-Werk Nenzing 29
11 Production and Transportation A clearly defined company strategy guarantees that only top quality products are developed and built in the most modern production facilities. Liebherr-MCCtec Rostock Fully Assembled Transportation In order to further expand its position in the international maritime market Liebherr has established an additional production site for mobile harbour cranes in Rostock’s harbour district on the German Baltic Coast in 2006.
Fully assembled transportation 31
12 Liebherr Service Worldwide Over 10,000 mobile harbour, ship, offshore and gantry cranes as well as reachstackers are serviced by Liebherr’s maritime division. The worldwide network of customer service centres guarantees the supply of spare parts and service throughout the entire lifetime of all machines. Competence On Site Reliable Partnership Speed and reliability have always been part of our service.
Spare parts depot Rostock 33
The Liebherr Group – Partner For The Future Today, Liebherr is among the leading manufacturers in the fields of hoisting technology and materials handling equipment. The name Liebherr stands for products and services. It has become a synonym for ideas and innovations. Liebherr – A Family Enterprise In family-operated companies, ownership merges with active entrepreneurship. This results in characteristic principles. Liebherr is both a family business and a corporation.
Mastering Key Technologies In view of the high quality that Liebherr demands of its products, mastering key technologies internally and keeping core competencies in-house has always been of great importance to the company. Therefore, Liebherr develops and produces crucial components, such as the entire propulsion and control technology, themselves. Further examples are hydraulic components, slip ring elements, and diesel engines.
Sunderland Killarney Rostock Nenzing Manufacturing Head Offices Sales and Service Stations Representative Offices Liebherr India Private Limited D-16/3 MICD, Ground Floor TTC Industrial Area, Turbhe Navi Mumbai – 400 703 India Phone +91 22 4126 7500 Fax +91 22 4126 7599 Liebherr-Russland 1-ya Borodinskaya Str. 5 Office 302 121059 Moscow Russian Federation Phone +7 495 502 1734 Fax +7 495 933 7223 Liebherr-Machine Ticaret Limited Sikereti Cumhuriyet Mah. E-5 Yanyol No.
