Press

Content
, 2017-07-20

Focus on upgrade and retrofit of hydraulic systems

Upgraded hydraulic subsea cable laying equipment (Photo credit: Blue Offshore)

Bosch Rexroth upgrades hydraulic subsea cable laying equipment Blue Offshore

Following the demands of their customers to work with increased cable lengths, Blue Offshore, a rental company for specialized cable laying equipment, decided to upgrade the capacity of its existing equipment. Bosch Rexroth from Boxtel was approached, to increase the pulling force of the hydraulic cable tensioner and to upgrade and modernize the complete hydraulic installation.

"This was a challenging and evenly exciting job," says Remco Buskens, Sales Engineer Specialized Services at Bosch Rexroth. "The complete installation of Blue Offshore is based on hydraulic drive and control technology, and was thoroughly checked, serviced, modernized and upgraded. The subsea cables are stored in huge basket carousels for offshore installation, driven by hydraulic motors. Also the two rubber tensioner tracks that accurately guide the cables, are adjusted relatively to each other by means of hydraulic cylinders. To store an increased amount of cable, the height of the basket carousel had to be increased. The ‘cable guidance device’ in between the basket carousel and the tensioner is tilted by a hydraulic cylinder, as the angle of the cable changes when the amount of cable on the storage wheel in- or decreases. Powered by a dedicated 37kW hydraulic power unit, this complete installation can be defined as a stand-alone unit.”

Efficient service operations

“One way of getting such jobs done is to fully replace all old components with new ones” says Buskens about the extensive service project. “But it is far more cost efficient for our customer, to clean and repair as many hydraulic components as possible. Only those parts that had to be replaced were replaced, others have been brought back in their original state by our service engineers. To do so, we worked closely together with both our experienced team in Zwijndrecht and the technical engineers from Blue Offshore, with whom for example the revised manifolds have been thoroughly discussed.”

Increased pulling force

The increased cable length that is stored in the basket carousel will add up to an astounding 80 kilometers. To handle the bigger forces resulting from this increased size and weight of the basket carousel, the tensioner equipment was modernized and provided with a double set of revised hydraulic cylinders and new Hägglunds hydraulic motors, which are able to generate high torques at low rotations. “By applying these powerful motors from the Rexroth portfolio and replacing all hydraulic piping and hoses, we were able to increase the pulling force of the tensioner from 5 up to 10 tons!” Remco Buskens added. “As these ships mostly operate in demanding marine environments, reliability of the equipment is a very important issue. The hydraulic HPU that powers the compact Hägglunds motors of the tensioner, includes a highly reliable control and monitoring system, providing Blue Offshore with solid insights about the condition of the hydraulic equipment.”

Weblink

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, and Factory Automation to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 29,500 associates generated sales revenue of approximately 5 billion euros in 2016.

To learn more, please visit www.boschrexroth.com

The Bosch Group is a leading global supplier of technology and services. It employs roughly 390,000 associates worldwide (as of December 31, 2016). According to preliminary figures, the company generated sales of 73.1 billion euros in 2016. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT company, Bosch offers innovative solutions for smart homes, smart cities, connected mobility, and connected industry. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to create solutions for a connected life, and to improve quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. The basis for the company’s future growth is its innovative strength. At 120 locations across the globe, Bosch employs 59,000 associates in research and development.

Additional information is available online at www.bosch.com , www.iot.bosch.com , www.bosch-press.com , www.twitter.com/BoschPresse .

 

Search press releases


Contact

Vincent Stahlecker
 
5281 RV Boxtel NL
Phone: +31 411 651 682
Vincent.stahlecker@boschrexroth.nl




Related Articles

2017-08-23
Product Information

The ‘Next Generation Gangway’ at work in the Irish Sea

Barge Master and Bosch Rexroth’s motion compensated ‘Next Generation Gangway’ is in operation on the subsea-support walk-to-work vessel VOS Start from Vroon Offshore Services.


2017-06-22
Press Information

Highly wear resistant cylinder rod coating for industrial and civil engineering applications

The highly wear resistant Enduroq 1 coating is aimed at civil engineering and industrial applications. Enduroq 1 is based on a laser cladding technology developed in cooperation with the Fraunhofer institute, Europe's largest application-oriented research organization.