SOLINTAL LRD, a new project in Poland, alongside Acciona

For Solintal LRD, the collaboration in this innovative project is a further step in its recognition as a company specialising in the design and development of operations for the public works sector on an international scale.

Work has been carried out on the modification of 3 Volvo A35D and A35E articulated dumpers, over 11 metres long, 3 metres wide and about 4 metres high, originally with a 20 m3 capacity box.

Solintal LRD, a leading engineering company in the design, manufacture and maintenance of machinery and integral solutions for industry, has developed, together with the Polish subsidiary of Acciona, Mostostal Warszawa, a solution for the transport of concrete segments of up to 14 tonnes each, which will be placed in the tunnel of the S-19 motorway in Poland.

For its development, work has been carried out on the modification of two Volvo A35D model articulated dumpers and another A35E model, more than 11 metres long, 3 metres wide and nearly 4 metres high, originally with a 20 m3 capacity box. In this line, a lightweight structure has been designed in order to leave the permissible load capacity of 28,000 kg intact and to reduce the unladen weight of each of the three truck units by almost 2,000 kg.

In addition, the retrofitting has front and rear protection against the hypothetical case of a dowel moving in the event of a truck collision or improper lashing. In this case, the protections are calculated to support the segments and especially not to collide with the operator's cab, always preserving the safety and health of the equipment involved.

The machine has been designed and manufactured in accordance with Royal Decree 1644/2008, which transposes the European Directive 2006/42/EC on machinery into the Spanish regulatory framework. This, with the aim of carrying out the operations required for the construction of the work and guaranteeing, at the same time, the safety conditions of the machine itself. Thanks to this modification, stability and safety are enhanced in the transport of segments, and sliding forces are reduced.

Thoroughness, a key element in the development of Solintal

Specifically, this innovative solution allows the parties involved to carry out the work of transporting voussoir segments inside the construction site, removing the bucket from the truck along with its hydraulic drive elements, such as hoses, hydraulic cylinders and auxiliary components of the box, and eliminating the function of tipping the box.

The attachment installed on the truck is designed with a curvature for loading segments with an outer radius of 7 325 mm, 600 mm thick and a maximum width of 2 033 mm. This curvature of the attachment makes the segments much more stable and stable.

The construction of the S19 is considered one of the most technologically advanced infrastructure projects in Poland. For Solintal LRD, the collaboration in this innovative project is a further step in its recognition as a company specialising in the design and development of operations for the international public works sector. In short, an action at the forefront of market needs to respond to the great challenges of the sector internationally.