, 2016-11-09

Bosch Rexroth introduces a modular program for Hydraulic Power Units

The type approved Modular HPU concept reduces time to market and optimizes dimensions and footprint.

Including Lloyd’s type approval for Maritime & Offshore aggregates of 350 to 3,000 kW

  • Shorter time to market
  • High quality
  • Complies to latest ISO standards
  • Optimized dimensions and footprint
  • Condition monitoring options

Bosch Rexroth is launching a modular hydraulic power unit (HPU) program specially developed for the Maritime and Offshore market. These high-end power units cover a power range of 350 to 3,000 kW, and have obtained the type approval by Lloyd’s Register. The program starts with a "basic" unit which can be expanded using all kinds of options. Because all variants are included in the modular options matrix, a design can quickly be calculated complete with dimensions and weights. This gives Bosch Rexroth a lead in the world of hydraulic power units.

Pierre Wouters, responsible for detail engineering of HPU at Bosch Rexroth in Boxtel, explains how the idea for this remarkable modular concept was born. "Within the Maritime & Offshore sector, power units are nearly always unique," says Wouters. "This means that until now, each HPU was separately designed and drawn. However, the market more than ever now demands fast response times and so a power range of 350 to 3,000 kW was chosen based on market demands. The units can be configured using a list of options, enabling the system to be made more maintenance-friendly, more reliable and more efficient."

Generous options matrix

The Modular Hydraulic Power Unit (MHPU) program starts with a configured solution for standard applications. This takes account of the minimum functions demanded by the customer. The HPU can also easily be adapted to additional requirements. For instance, if one requires it to include an e-cabinet and/or starter cabinet configuration. A large number of options can also be supplied, such as double cooling pumps for situations requiring redundancy, but also a cleanliness measurement system or depth filtration kit. The MHPU can also be fitted with pulsation dampeners, as well as a number of other options. Efficient IE3 electric motors, which can drive one or more pumps, are employed for driving the pump units. The MHPU program means that based on the request, often a detailed quotation and a 3D drawing of the aggregate can be presented on the same day. All this including relevant information on dimensions and weight. Moreover, a Lloyd's Type Approval has been obtained for the entire MHPU program.

Industry 4.0

"What we are doing now is developing 'industry 4.0-like features'," continues Pierre Wouters. "That means that we fit the HPU with extra sensors and interfaces so that in the near future we can enable communication via the Internet between the MHPUs and the customer's technical department or with our headquarters."

Broad program

According to Pierre Wouters, the current program covers a large part of the market needs in the Maritime & Offshore sector. "Of course some parts will always remain that have to be designed separately," says Wouters. "The systems are designed for a design pressure of 350 bar and a maximum flow of 6,000 liters/min. The functional switch blocks behind the HPU are often tailor made so that we are still talking about ETO (Engineered To Order). But the fact that the units can now be compiled with literally just a few mouse clicks saves so much time, also in production. This partly contributes to a significant improvement of the delivery times and costs and will ensure that Bosch Rexroth can operate even more competitively in this market."

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 31.100 associates generated sales revenue of approximately 5.4 billion euros in 2015.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. 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 and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

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