025 — Direktlink
12.06.2013, 15:26 Uhr
Menzitowoc
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Fortsetzung von Posting Nr. 024:
Another local manufacturer, Construct Engineering, has been making the Humma 20t articulated pick-and-carry crane for some time. Its reaction to the current demand has been to increase production to two units per month, although the availability of components sometimes affects this. Its crane differs from the norm in using airbag suspension. The crane is a hand-built niche market machine, and has had success in the mining industry, which has requirements that go well beyond the standard specification of a crane. Construct has no plans to develop other models, further increase production or significantly alter the current design. It also markets a unique design for an all terrain forklift conversion of the crane, and has built one of these units.
Bei diesem Hersteller scheint es mit den Knicklenker-Kranen seit damals besser zu laufen. Er firmiert heute unter DRA Engineering und hat inzwischen drei Modelle im Angebot: den HUMMA 20-25, HUMMA UV25-25 und HUMMA UV35-25.
Während der XCMG Kran ARC20 mit einem besonders kurzen Ausleger mit nur 3,5 m Frontüberhang für genehmigungsfreie Straßenfahrt punkten wollte, sind die Ausleger bei den HUMMA-Kranen besonders lang.
Generell scheinen die DRA-Krane der HUMMA-Serie mehr auf einen Einsatz abseits der Straße abzuzielen, als die Franna´s. Liegt wohl auch am Standort von DRA in Westaustralien mit den großen Bergbauregionen in der Nähe.
Terex Franna
There is only one reason for so many competitors emerging in the pick-and-carry crane market in recent years: the Terex Franna has been an overwhelming success. Despite ramping up its production year after year, it has been unable to significantly reduce lead time.
It has not rested on its laurels, and the popular 20t AT-20 model is now in its Series III update. The prototype was seen at the 2007 CICA crane conference, with the first production machine on show at CICA 2008 in Melbourne. Updates on the prototype included a one-piece engine cover, joystick control, improved hydraulic flow (up 20%), an adjustable centre pivot joint, an in-dash colour display with dash layout similar to other Franna models and integrated Bluetooth hands-free communications. A change since the prototype is that the engine cover will now be a one-piece fibreglass unit rather than of steel construction.
Terex Franna expects to produce around 360 units in 2008, and has expanded its subcontractor base to achieve this. The company believes that having a machine designed and built in Australia still counts for a lot in the Australian market, and promoted the crane accordingly at the 2008 Melbourne crane conference.
Der letzte Satz , dass der Kunde auf “Made and engineered in Australia” setzt, scheint sich ja inzwischen bestätigt zu haben. Die beiden Chinesen (Zoomlion und XCMG) sind auf dem Rückzug. Übrig geblieben sind Terex-Franna mit drei Modellen und DRA Engineering mit der HUMMA-Baureihe.
Chris Logan of Gleason Cranes has recently taken on the franchises for R&B (Toa) mini crawler cranes (1.5-2.9t), Ormig pick and carry cranes (5.5-60t) and Cometto speciality trailers. He sees an application for the Ormig in Australia, in restricted applications where the lack of mobility and short boom length are not a detriment, but where the heavy construction and high lift capacities are an advantage. To date the five units sold (10t and 25t units) have gone to mining companies.
Another importer is Pace Cranes, which imports the Italian-made Valla yard crane range.
Australian Mining Logistics is importing cranes from India's Action Construction Equipment.??
Efforts to introduce overseas pick-and-carry crane designs have had no great success. These designs are suited to low-speed operation on industrial, mining and large construction sites. It has proven difficult to change Australian preferences for traditional pick and carry designs.
A tracked competitor
A successful new competitor to the Franna has come from an unexpected quarter: the Liebherr LTR1100 hydraulic crawler crane. The crane’s appeal comes from the way it bridges the gap between the Franna-style pick and carry crane and lower capacity lattice boom crawlers. While the Liebherr doesn’t have the mobility of the Franna to allow it to be used as a taxi crane, its dimensions, weight and speed of rigging and de-rigging mean that it is readily transportable, and can be considered for short-term work. Its hydraulic boom gives it significant advantage over a lattice boom crawler crane on some sites, and in some instances this means that it can do away with the need for a tractor crane, Franna or even a truck crane or rough terrain crane.
Queensland developer Matton Developments once hired lattice boom crawler cranes for its projects. Rising hire costs and a shortage of cranes forced the company to look at buying its own crane. It formed Master projects to buy the crane, then hire it to Matton and third party users. A Liebherr LTR1100 was chosen. This lifts and walks tilt-up panels, as the lattice boom crane did. However it is also suitable for lifting steelwork, where normally a smaller telescopic boom crane would be used. Because it does not have the height of an A-frame, it can often walk inside a building and telescope the boom through the roof when erecting steelwork, giving the operator a direct view of the work. With its capacity and boom length, it also has an advantage over tractor cranes and Franna-style cranes in that it can stand in one position and slew to move building materials, where the smaller cranes would have to walk with the load.
The Liebherr LTR1100 is also represented in fleets serving the mining and civil construction markets. Following the success of the Liebherr, Mantis and Ormig telescopic boom crawler cranes have also been introduced to the Australian market.
At the opposite end of the hydraulic boom crawler crane market, the Linmac LCC crawler cranes remain popular though they are long out of production, and this is in part due to their good pick and carry chart. The introduction to the Australian market of the Maeda MC-405C with a 500kg pick and carry chart was well received in the Australian market, though it doesn’t match the capabilities of the Linmac mini crawler crane.
Bisher waren mir Linmac Miniraupenkrane auch unbekannt, aber die Firma Queensland Mini Crane vermietet solche Geräte. Es gab mindestens einen LCC29 und LCC45 mit 2,9 bzw. 4,5 t Traglast.
In one shape or another, Australians are not going to give up their love affair with the pick and carry crane. The main question for the future is how many of them will be made in Australia.??
Gruß Christoph
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Mal was ganz Anderes: Marion Walking Dragline aus Constructor (Holzbaukasten)
Dieser Post wurde am 12.06.2013 um 15:27 Uhr von Menzitowoc editiert. |
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