German contractor Stefan Jodlbauer, from Engertsham near Passau, has put his first HD Hyundai HA30 articulated dump truck (ADT) to work in the toughest conditions, hauling six days a week through 500mm deep ruts.
In its first two weeks of operation, the machine contributed to the movement of 10,000 tonnes of fine loess soil on a site in Eholfing. This has been distributed over an area of around 15,000m2 and covered with topsoil.
The 30-tonne capacity HA30 was launched at bauma 2022, and Jodlbauer was one of the first in Germany to add the machine to its fleet. The contractor is primarily involved in demolition, earthworks and civil engineering.
“Tractors with trailers or four-axle trucks cannot do this work,” said the experienced muckshifter.
The ADT is loaded in eight cycles by an 18-tonne HD Hyundai excavator, and the two machines are maintained and supported by local HD Hyundai dealer Mörtlbauer Baumaschinen.
Operator Philip Müller has been particularly happy with the new machine, saying: “It is quiet, the transmission shifts smoothly, and the machine can get through everywhere. In difficult terrain and constantly fully laden, it consumes around 16-18 litres of diesel per hour, which is a good value.”
Jodlbauer was impressed by the performance, too, along with the ergonomic cabin and the tailgate, which allows full loading of the dump body. With optional integral body heating, the chance of material sticking to the bottom of the dump body has also been minimised.
The HA30’s compact chassis results in a very small turning radius and outstanding stability. Self-levelling hydro-pneumatic suspension on the front axle supports comfortable driving and facilitates steering in difficult ground conditions. The two rear axles work with a tandem bogie design, a single centre differential, and a double internal gear drive on each side of the dumper. Thanks to the extreme articulation angles that can be achieved, the four rear wheels maintain good contact with the ground even on difficult terrain.
The HA30 has near-perfect weight distribution, with a slanted rear frame providing stability through better load distribution for a low centre of gravity. The tandem bogie delivers high ground clearance and first-class traction, and the machine has an innovative transmission design for a shorter front end. This allows the articulation joint to be mounted close to the front axle for even weight distribution from front to back and across the front axle when steering.
The HA30A has a body capacity of 16.8m3, which increases to 17.8m3 with the tailgate. Body heating is optional. Wear plates are also available for transporting more abrasive material.
An eight-speed ZF automatic transmission with an integrated retarder delivers power to the wheels, and the torque converter, with lock-up in all gears, reduces fuel consumption. For greater construction site safety and fuel, AdBlue and a standard automatic lubrication system are accessible from the ground. The engine cover also tilts forward for access to filters and filling points, while the entire cab structure can tilt toward the rear of the dumper to allow access for repairs and maintenance.
