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CRANES & LIFT

UPLIFTING INTRODUCTIONS FROM BAUMA 2O19

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here were many key introductions from big players in the crane segment at bauma 2019. Here are a few of the highlights.

Liebherr mobile crane

Liebherr’s LTM 1110-5.1 is a 110-tonne mobile crane with a 60-metre telescopic boom and is designed for variable axle loads. This five-axle crane achieves axle loads of 12 tonnes with 13.1 tonnes of ballast, but can also be driven with a gross weight of less than 48 tonnes with a maximum axle load of 10 tonnes. With its maximum ballast of 28.7 tonnes, it remains below an axle load of 15.5 tonnes. A quick-change system for the ballast slabs ensures maximum flexibility for modifications. The variable support base VarioBase delivers particularly high load capacities with its widened rear supports. Liebherr calls it VarioBase Plus. Although the new LTM 1110-5.1 has a lightweight construction that achieves a gross weight of 48 tonnes with axle loads of less than 10 tonnes, its 60-metre telescopic boom and maximum ballast of just 28.7 tonnes enable it to rival the performance of similar mobile cranes on the market. Even in countries where mobile cranes with a 12-tonne axle load are permitted on the roads, crane operators have for some time been demanding cranes which can be driven with 10 tonnes per axle by simply removing the ballast. This version delivers major benefits for road licensing and route approval procedures. The ability to carry up to 13.1 tonnes of counterweights with an axle 38

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weight of 12 tonnes on a 5-axle crane means that operators can complete the vast majority of crane jobs at low cost without having to transport additional ballast. The rear supports have a double-stage design and achieve a support width of 8.3 metres, 1.3 metres wider than the front supports. This increases the capacity over the rear supports even more. Liebherr calls the combination of the trapezoidal and variable support base VarioBase Plus. With a length of 60 metres, the telescopic boom on the LTM 1110-5.1 is one of the longest in its crane class. In addition, a 10.8- to 19-metre folding jib is available which, as an option, can also be adjusted hydraulically between 0 and 40 degrees. Two 7-metre lattice sections can also be installed to extend the telescopic boom to achieve the maximum hook height. This means that the new 110-tonne mobile crane achieves the same system length as the LTM 1130-5.1. A 2.9-metre erection jib and a runner, which can be swung to the side, round off the equipment list. A six-cylinder Liebherr diesel engine in the undercarriage offers 400 kW / 544 bhp and torque of 2,516 Nm. The engine meets Stage V emissions requirements and can be built to comply with Tier 4 Final requirements for North America. The new ZF-TraXon gearbox is used to transmit power to the crane’s axles. As with its predecessor, the AS-Tronic, the 12 gears are changed automatically. ECOdrive is a new feature and Hillstart Aid makes starting on gradients easier. Liebherr has continued its single-engine strategy on the new crane

with a mechanical driving unit for the superstructure. This reduces weight from the predecessor models, allowing for a longer boom and more ballast with an axle load of 12 tonnes. ECOmode for crane operations reduces fuel consumption and noise.

Grove rough-terrain cranes

Grove showed two new rough-terrain models at bauma. The GRT8100 has a 100-t capacity and 47-m five-section main boom which provides better reach and greater versatility. The crane also features the Manitowoc Crane Control System (CCS) with its user-friendly interface. Other features include a tilting cab and impressive load charts. With a full complement of boom extension and insert options, the GRT8100 has reach of 77 metres. Both 10- and 17-metre manual and hydraulic offsettable extensions are available as well as a heavy-duty 3-metre jib that

Terex RT 100US

Liebherr LTM 1110-5.1 can be offset to 40 degrees. The GRT655L is a smaller, 51-tonne-capacity crane. It has a 43-metre, five-section boom, which the company says gives it a reach advantage of 8 metres over the closest-competing model. This longer boom gives it a maximum working radius of 36 metres and an 80 percent greater chart capacity than competing cranes at that radius. Grove also offers a regular boom version of the crane, the GRT655, with a total main boom length of 34.8 metres.

Terex rough-terrain crane

The Terex RT 100US (RT 90 in Europe) rough-terrain model offers a five-section, fully hydraulic boom that extends to 47 metres. A 17-metre bi-fold jib further enhances the reach and versatility of the crane. Maximum capacity is 95 tons. Designed for easy operation, the Terex RT 100US features a control system with integrated

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Heavy Equipment Guide May 2019, Volume 34, Number 5  

Heavy Equipment Guide May 2019, Volume 34, Number 5  

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