OHF Hafen- und Flussbau GmbH based in Au am Rhein in Germany has over 20 years of experience as a specialist in the field of hydraulic engineering, from planning through to project hand-over, from reconstruction through to renovation and repair work. The company focuses on structural hydraulic engineering. In order to carry out these large-scale projects and challenging activities rapidly and with the required precision, OHF GmbH has not only a broad range of machinery but also extensive know-how, the necessary experience and highly-qualified personnel.

OHF GmbH has been an extremely satisfied customer of SENNEBOGEN since the company was founded and receives tailored and competent support from IBS GmbH which is based in Röthenbach near St. Wolfgang. One example of the expertise of OHF GmbH is the conversion of the ship container bridge in the oil harbour in Karlsruhe to accommodate 7,000 t ships. The oil harbour in Karlsruhe is used to load oil products from the refinery onto tankers. A SENNEBOGEN 660 HD dragline on a hydraulic stilt pontoon is a vital piece of equipment on this site. After the bridge has been strengthened, the SENNEBOGEN 660 positions the 18 t loading arms in the centre of the bridge and raises them with a high degree of precision.

Dolphins with a total length of 24 meters are rammed into the foundation of the harbour to fasten and guide ships. The SENNEBOGEN 660 with a 34.0 meter boom configuration is equipped with an MS 48 HFV vibrating drive hammer and a hammer guide for the dolphins. The 660 inserts the 22 t dolphins safely and precisely to a depth of 10.5 meters. This task requires lifting capacities of up to 32 t and is easily accomplished by this powerful and robust machine. Managers and drivers at OHF GmbH can look back on many years of experience with SENNEBOGEN draglines and are delighted with the new SENNEBOGEN 660. The company also operates four similar stilt pontoons with SENNEBOGEN machines.

The HD crawler crane product range from SENNEBOGEN includes 8 models with loads of 30 - 200 t and motor performance of 148 - 570 kW. With extensive expertise and experience spanning over many decades, the universal HD draglines from SENNEBOGEN combine power, stability and flexibility. With no superfluous overengineering, these machines offer maximum reliability and availability.