Four models are being given their first showing at Bauma by Man Wolffkran. The new 180B completes Wolffkran’s approved line of derricking cranes. A top slewing crane with derricking jib, it has been designed for general site handling of precast concrete sections, site-mixed concrete or steel girders. At its maximum radius of 55m it can lift 2t. Maximum load capacity is 18t. As standard, it comes with the stored programmable control CC 90, limiting slewing and radius, monitoring operational data, and giving self-diagnosis of errors. A mobile remote monitoring system is optional.
Also new from Wolffkran is the 5520 FL-6K, a compact tower top designed to replace standard tower tops without additional mechanical adjustments beyond welding two bracing brackets onto the counterjib. In effect, it is Wolff’s first flat-top tower.
Wolffkran’s new Pekazett 2011 HSM quick erection crane has a hook height of 18m, a footprint of 3.2m by 3.2m, and a load capacity of 1100kg at 20m and 750kg at its maximum radius of 24m. It is assembled with a single lifting cylinder, with no hydraulic leads or cylinders in the upper tower or jib.
Linden-Comansa, pioneer of the flat-top, or topless, cantilever tower crane, has a new addition to its 1000 series of modular cranes. The LC-1060 closes the gap between the 1000 and the 2000 series models, having a 60m maximum radius and more than 150tm capacity. It can also be upgraded just by substituting a few modules. Linden-Comansa is also showing its first luffing jib range, the LCL series. The first two models have capacities of 200tm and 300tm. Further models will follow, the company says.
Aiming to open up new markets for luffing cranes, to satisfy those users who consider erection complexities to be an impediment, the LCL series also features a newly developed folding 6m cross base, which is transported in a single package. This cross base is designed to be used on any Comansa tower and, the manufacturer claims, it can be “assembled, levelled and ready in a matter of minutes”. The new base permits the LC-1000 family an enhanced free-standing height of 65m with standard mast sections.
BKT, another strong proponent of the flat-top tower, is showing the BK 412-10, which has a hook height of 51m and operates up to a radius of 75m, and the luffing model BN 75-8 which lifts 4t at 17m with a 40m jib.
At Bauma Liebherr is showing top-slewing and fast-erecting towers, as well as new two-speed hoisting gear for its tower cranes, with performance ratings ranging from 22kW to 65kW. Liebherr describes this continuously variable drive principle, with Litronic frequency-converter control system, as “genuinely unique”. The company claims: “It boosts crane operation productivity by reducing the electric motors’ power requirement by 20% at unchanged maximum load carrying capacity.” Liebherr’s top-slewing cranes will from now on feature this driveline, which also increases lowering and hook return speeds, as standard.
Liebherr will again be promoting its teleservice option, which was launched at Intermat in Paris last year and has since been sold on 25 towers in the field.
Peiner, sharing a stand with parent company Noell Service & Maschinentechnik, will be showing its SMK range of self-erecting cranes and the SMH hydraulic version, as well as its SK range in city, giant and luffing versions. It will also be demonstrating the ABK 92 truck mounted tower, developed with GIS-Munsters. It can be erected in seven minutes, lifts 1.5t at 42m, and has a maximum capacity of 6t.
Potain is showing on its stand four saddle jib models, with the Potain K masts, and various self-erecting cranes, including new HD models and new transport modules. Also on show are two models launched at Intermat in Paris last year: the MD 345 which lifts 2.6t at 75m; and the compact MR 90 luffing jib crane, which lifts 2.1t at 40m.
