Earthmoving & soil compaction

CASE CONSTRUCTION Equipment operators and customers from Europe are honing their skills at the controls for the return of the Case Rodeo operator competition, which follows an inaugural European championship last year. Competitors will have to show off their skills in a range of machines, from skid steers and backhoe loaders to larger hydraulic excavators and wheeled loaders, and demonstrate technical skill, safe working practice and productive capability.

Chinese construction equipment manufacturer LiuGong Machinery announced first quarter earnings of US$93.35 million (¥612 million; ?66.03 million) from a net profit of $905.58 million (¥5.94billion; ?640.59 million) total sales revenue.

One of the most notable developments in the loading and hauling sector though again comes from Liebherr, with the long awaited launch of its ADT range.

Volvo Construction Equipment says that its all-new F-Series ADTs will meet the tough Tier 4 Interim/Stage IIIB emissions legislation as well as delivering performance improvements over previous models.

With the Tier 4 interim/Stage IIIB emissions requirements due next year, further upgrades will be required for all wheeled loaders sold in Europe and North America.

The introduction of the latest emissions standards in North America and Europe are requiring major design rethinks for earthmoving machines such as ADTs, Mike Woof reports. With the introduction of the Tier 4 Interim/Stage IIIB emissions legislation, major changes are being made to off-highway machines. One of the machine types most affected by this legislation will be the articulated dump truck (ADT) and designers have faced major challenges in developing solutions that retain what are now seen as key oper

In the earthmoving sector, much development is being seen in excavators and wheeled loaders used for digging and loading, Mike Woof reports

Although construction projects in Dubai and Abu Dhabi demand large volumes of aggregates, many quarries in those regions are being closed by authorities. Much of the demand is being met by quarries in the Emirate of Fujairah which are fast becoming the regions' 'bread basket' for gabbro aggregates.

Dealing with nuisance dust is an issue for almost every quarry and for those operating in the tropical paradise of the Caribbean, it is no different. One Trinidad-based quarry operator has recently tackled the problem and is seeing benefits for its workers, neighbours and its machine service life too.

Caterpillar's new 390DL excavator is said to delivers higher performance and increased durability over the 385C model it replaces. Power comes from an 18.1litre Cat C18 ACERT diesel, which delivers 390kW and features advanced electronic control, precise fuel delivery and refined air management. Upgrades to the 390DL's implement hydraulics allow the excavator to deliver greater digging and lifting forces than its predecessor. Increased breakout force promotes faster trenching and loading cycles plus stronger