Product Details Supplier Info More products

Bosch Rexroth worked with Barge Master BV to provide it with heave compensation to improve the safety of cranes operated at sea, such as those used on wind farms and drilling platforms.

Barge Master BV was encountering difficulty with floating cranes working in areas where waves crested at 30cm, as even swaying of two or three degrees resulted in the tip of crane moving by four to five metres. This made the load unstable and put the crew at risk.

The company worked with Bosch Rexroth to develop a heave compensation system, which Barge Master says reduces the manufacturing cost and operational costs of offshore projects.

The system’s moving platform compensates for roll yaw and heave. The crane is attached to the hull of the ship via three vertically affixed hydraulic cylinders, with joints that incorporate ball bearings. The remaining three degrees of freedom are frozen by connection rods that have limited mobility and allow the cylinder movements to compensate for the motion of waves. Finally, motion data is provided by sensors, and used to calculate target values for the movements that keep the platform stable.

According to both companies, this system can neutralise 95 per cent of motion.

Key information

  • It is expected by mid-2012 the C400 Barge Master will be completed.
  • It will be suitable for use with cranes weighing around 400 tons, and payloads of up to 160 tons.
  • The application window has been expended to floating cranes operating in waves of up to 150cm.

Bosch Rexroth

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.

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 33,700 associates generated sales revenue of approximately 5.6 billion euros in 2014.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 360,000 associates worldwide. The company generated sales of 49 billion euros in 2014. 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 subsidiary and regional companies in some 60 countries. Including its sales and service partners, Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2014, Bosch applied for some 4,600 patents worldwide. The Bosch Group’s strategic objective is to create solutions 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.”

View full profile