NEW I N I NDUSTRY
Liebherr introduces new crawler and all-terrain cranes The new 800 t LR 1800-1.0 extends the Liebherr range of crawler cranes in the class below 1,000 t, particularly for industrial work such as power plant construction and jobs in the petrochemicals industry – all of which generally require luffing jibs and derrick systems. The LR 1800-1.0 has been designed to achieve maximum lifting capacities for these applications whilst ensuring low-cost transport around the world. According to Liebherr, the concept for the boom system is completely new – three lattice sections are telescoped for transport. This principle has been designed and improved for the standard configuration with an 84-m main boom and 84-m luffing jib. The large lattice sections are located at the bottom section of the main boom, while the medium ones at the top section of the main boom and at the bottom section of the luffing jib. The small lattice sections are installed at the upper section of the luffing jib. The standard length can be extended to the maximum length of the boom system, which is 102 m for the main boom plus 102 m for the luffing jib. The LR 1800-1.0 is powered by a 455 kW Liebherr V8 diesel engine, which complies with the Stage V exhaust emissions standard. The basic machine is designed with a 3 m transport width and a maximum transport weight of 45 t, resulting in reduced transport costs. The weight of the crawler travel gear (60 t) can be reduced to a transport weight of less than 45 t by removing the tracks. The base plates have a standard width of 2 m to keep the ground pressure as low as possible. The LR 1800-1.0 also features the VarioTray innovation. After raising the lattice boom with a large derrick ballast, part of the ballast can be unbolted quickly and easily. Only a small proportion of the ballast is generally required for hoisting work with the boom in steep position, thereby avoiding the tiresome stacking and unstacking of ballast slabs. A hydraulically adjustable folding frame allows the ballast radius to be adjusted to up to 23 m. Therefore a fixed guiding frame is no longer required for a large radii. The ballast takes the form of 10 t Liebherr standard slabs, meaning that it can be used universally on other Liebherr crawler crane models. The LR 18001.0 operates with a maximum of 230 t of slewing platform ballast, 70 t of central ballast and up to 400 t of derrick ballast. In addition, the new Liebherr LTM 1230-5.1 all-terrain crane is the successor to the LTM 1200-5.1, designed with an increased boom length and lifting capacity. Featuring lattice extensions, the maximum hook height has been increased by 10 m to 111 m. The Liebherr LTM 1230-5.1 is an ideal crane for steep gradients and large hook heights, such as when erecting tower cranes or during maintenance work for wind turbines. There is a wide range of lattice jibs for the new LTM 1230-5.1. The 11.5- to 22 m-long folding jib can be mounted at an angle of 0°, 20° or 40°. It can be supplied with a hydraulic adjustment system as an option, which allows it to luff with a full load between 0° and 40°. The pivot point for the folding jib can be raised using up to three straight 7-m lattice sections acting as telescopic boom extensions. A fixed jib of up to 43 m in length can be achieved with an additional TF adapter (connection between the telescopic boom and the fixed jib), a reducer section and a headpiece. Existing lattice extensions are used for this purpose. This jib is generally hydraulically adjustable between 0° and 45° and thus can be used like a luffing jib. The existing parts can be used to assemble
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LEFT: The new Liebherr LR 1800-1.0 crawler crane, introduced at the company’s customer days in June, is designed to deliver maximum lifting capacities for industrial applications. BELOW: Liebherr has also unveiled its new five-axle LTM 1230-5.1 all-terrain crane.
a particularly powerful jib of up to 39 m in length, which is ideal for steep working positions. The maximum ballast for the LTM 1230-5.1 is 72 t, the same as its predecessor; but thanks to its VarioBallast, which can be adjusted from 4.8 to 5.7 m, the lifting capacity at great radii has been significantly increased compared to the LTM 1200-5.1 and also the LTM 1220-5.2. The LTM 1230-5.1 is equipped with the VarioBase technology, allowing the crane to have an asymmetrical support base – with the width being 7.4 m at the front and 8.1 m at the rear. It is also now possible to deliver high lifting capacities, particularly at the rear working area over the 8.1 m wide supports – calculated in real-time by the Liccon controller. The LTM 1230-5.1 features the Liebherr single-engine concept. It is powered by a six-cylinder 400 kW Liebherr diesel engine, with torque of 2,516 Nm. The engine complies with the Stage V exhaust emissions standard. The EcoMode also makes the vehicle significantly more comfortable and quieter due to the low engine speed. n Website: www.liebherr.com