Gulf Construction Online - Bauer to reveal latest machines at Intermat

Germany and the Middle East

Bauer’s flagship MC 128 crane.

Bauer to reveal latest machines at Intermat

01 March 2012

THE Bauer Maschinen Group – whose machines have helped lay the foundations of numerous landmarks in the Gulf region – will showcase its latest innovations at one of the world’s leading exhibitions for equipment and techniques for the civil engineering and construction next month (April 16 to 21).

The German ground engineering equipment specialist will put the limelight on its latest range of foundation cranes, represented by the model MC 64 and the fully relaunched drilling rig BG 30 at Intermat 2012 in Paris, France.

“Overall, Bauer will exhibit a broad spectrum of its specialist foundation equipment, showcasing new and innovative ideas, plant and equipment at the major international trade fair,” says a company spokesman.

The series of MC foundation cranes comprises the models MC 32, MC 64, MC 96 and the flagship MC 128. Powered with diesel engines from 194 kW to 709 kW, their lifting ranges vary from 32 tonnes to 200 tonnes. The MC cranes are also equipped with two winches, each with a line pull capacity from 16 to 35 tonnes.

“These cranes have been developed for use as base carriers for BC trench cutters, diaph-ragm wall grabs and numerous other applications in special foundation construction such as dynamic compaction (BDC),” says the spokesman.

The core product line of Bauer, however, is the BG rotary drilling line. The BG family will be represented at the show with a BG 30, says the spokesman.

BG 30 drilling rig.

“The BG 28 mounted on a BS 80 base carrier has been our best-selling model since 2004. Relaunching the BG 28-BS 80 as BG 30-BS 95 rotary drilling rig is an excellent demonstration that even best-selling models can be improved and suitably adapted to make them fit for new challenges and applications,” he says.

The spokesman points out that new and stringent European and US exhaust emissions regulations require new generations of diesel engines and emissions management technologies. “Since the beginning of 2011, new diesel engines have to meet Stage IIIB (EU) – Tier IVi (US EPA) emissions standards,” he says. “This current phase of tightening regulations requires substantial changes in diesel engine technology, as the new exhaust gas emissions limits can only be achieved by exhaust after-treatment devices. Diesel engines must only be operated with ultra-low-sulphur diesel fuel with a maximum sulphur content of 15 ppm.”

The exhaust after-treatment and increase in cooling capacity require more space on the upper carriage, which has been taken into account in the new design of the base carrier BS 95.

As exhaust emissions regulations are not, however, uniformly applied throughout the world and ultra-low-sulphur diesel fuel is not yet available in every country, Bauer will still be offering current Stage IIIA/Tier III diesel engines in regions outside Europe, the US and Japan.

The main winch has also been redesigned and mounted at the rear of the upper carriage. Increased line pull of 274 kN in the first layer and a wide winch drum (two-layer operation for great drilling depths) are impressive features of the redesign.

The counterweight design concept has also been completely redesigned. Stackable hori-zontal counterweight slabs offer numerous advantages over vertically mounted counter-weight elements such as low deadweight (4.9 or 1.8 tonnes) for easy and safe assembly and flexible configuration for different applications, the spokesman says.

The rig will be exhibited with a Bauer torque multiplier system BTM (DKS), which is mounted below the rotary drive and which reverses the rotation direction of the rotary drive. The system allows the construction of cased CFA piles. This double rotary head system, where a long casing and a continuous flight auger are installed at the same time, is also ideal for the construction of high quality secant pile walls.

Other member companies of the Bauer group will also be represented at Intermat to reinforce the group’s reputation as a “one-stop shop” in the foundation engineering sector. Klemm Bohrtechnik will demonstrate its competence in small bore drilling rigs by exhibiting two of its KR series anchor drills. MAT Mischanlagentechnik will be present as a specialist for mixing, pumping and desanding; while ABS Trenchless, will promote its compact machinery for trenchless rehabilitation of underground lines and sewers.

A range of machines from the group was recently employed by Bauer Spezialtiefbau, its specialist foundation engineering company, in the construction of a pedestrian tunnel for the mixed-use Nation Towers development in Abu Dhabi, UAE. The tunnel, completed late last year, links the shopping complex and other components of the building to a purpose-built beach club.