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Friday, May 14, 2021
Home Features Tadano launches two truck-mounted cranes

Tadano launches two truck-mounted cranes

New HK 4.050-1 and HK 4.070-1 offer high manoeuvrability and numerous outtrigger and boom solutions for versatile lifting capacities in confined spaces

Tadano has introduced two new truck-mounted crane models which offer various lift capacities and radius configurations along wiht high manoeuvrability through clever outrigger solutions for versatile usage.

The new HK 4.050-1 and HK 4.070-1 truck-mounted crane models offer ease of handling and neatly remain within axle load limits in most urban and road environments, said a a statement from Tadano. The four-axle units are good for work sites where space is tight – from prefab home assembly, through garage setup projects, all the way to roofing and carpentry jobs, said the carne maker and added that the cranes deliver thanks to their compact dimensions. The 50 model is 11.11m long and 2.55m wide, while the 70 model is 11.8m long and 2.55m wide. Both cranes are less than 4m in height.

The HK 4.050-1’s boom can be extended to a maximum length of 35.2m. Together with the jib, this comes to a maximum system length of 44.2m with large lifting capacities. For example, the boom can lift 7.6t at a radius of 7m with the maximum main boom length and 4.2t at a radius of 20m.

The Tadano HK 4.070-1 features a main boom with a length of up to 41m. With a jib, the maximum system length is extended to 56.8m. The 70 model can lift up to 55.6t at a radius of 3m with a counterweight of 10.1t – at a radius of 8m, the capacity is a still-impressive 19.2t.

Tadano added that the cranes’ AML control software means that their lifting capacities are not subject to any compromises when using asymmetrical outrigger configurations. The AML crane control software unlocks the maximum lifting capacity as a function of the position of each outrigger and of the slewing angle. Regardless, the new HK models’ booms already have large lifting capacities, said the manufacturer.

The new Tadano truck-mounted cranes have a turning radius that is up to 2m smaller than that of their predecessors. This eliminates a number of manoeuvrs that would otherwise be necessary in tight spaces and makes others significantly shorter.  At the work site, both the HK 4.050-1 and the HK 4.070-1 perform better with their flexible H-style outriggers. To date, these are the only two truck-mounted cranes in existence to have this feature, said Tadano. H-style outriggers require much less space in comparison to swing-out outriggers at work sites and in addition make it possible to lift the chassis higher.

Since the outriggers on both models can additionally be positioned in an asymmetrical configuration, i.e., each outrigger base can be extended to an individual length, the Tadano HK units really shine at tight work sites. The crane design makes it possible to use five different individually selectable positions for each outrigger, ensuring that the cranes can adapt to local conditions.

Michael Klein, product marketing manager, who is overseeing the Tadano cranes’ launch, said:  “Building space keeps getting scarcer, so lots keep getting smaller and work sites keep getting narrower. Not to mention that construction keeps getting more and more expensive. Our cranes are a cost-effective alternative to the use of larger cranes at private building grounds, and their small size and intelligent asymmetrical outrigger system mean that they need very little space.

We use standard truck chassis from well-known manufacturers for our truck-mounted cranes. This means that the drivetrain is less expensive and easier to maintain for our customers. Basically put, the cranes are unbeatable when it comes to maintenance and servicing.”

Both the HK 4.050-1 and the HK 4.070-1 are available on Volvo and Scania chassis. The smaller model can also be installed on Mercedes and MAN chassis. The engines used in the superstructure are manufactured by Mercedes (HK 4.070-1) and Cummins (HK 4.050-1) and deliver 129kW for the 70 model and 101kW for its smaller sibling. Thanks to an innovative exhaust gas treatment system, the two engines conform to the EU Stage V emission standard. In addition, the superstructure and carrier engines on the 70 model can be fueled from the same side – a small detail that makes crane operators’ day-to-day work easier.

 

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