Image

Electrohydraulic Controller for Offshore Winching

Jan. 28, 2015

Bosch Rexroth has released an upgrade to its DS1 electrohydraulic controller for offshore winching. The control unit, called the DS2R, uses proportional valve technology to provide several advantages over its predecessor.

The DS2R controller attaches directly to the hydraulic axial piston of the secondary control unit to aid in motion control. An A4VSO axial piston provides open-loop torque control or an A4VSG axial piston provides closed loop torque control.

A high-response proportional valve in the DS2R stabilizes the winch’s active heave compensator in wavy conditions at sea. The controller’s high dynamic response to the ship’s erratic movements helps compensate for waves that would otherwise move the winch cable. The upgrade includes a Rexroth AWXF swivel angle sensor to make heave compensation reliable in harsh open seas.

A DS2E version without the fitted Rexroth proportional valve and a DS2S version with a servo valve instead of a proportional valve are available. Both versions fulfil the very high dynamic requirements of offshore winching applications.

www.boschrexroth-us.com; 1-800-REXROTH (739-7684); 14001 South Lakes Drive, Charlotte, NC 28273; [email protected]

About the Author

Leah Scully | Associate Content Producer

Leah Scully is a graduate of The College of New Jersey. She has a BS degree in Biomedical Engineering with a mechanical specialization.  Leah is responsible for Machine Design’s news items that cover industry trends, research, and applied science and engineering, along with product galleries. Visit her on Facebook, or view her profile on LinkedIn

Sponsored Recommendations

Aug. 15, 2025
This latest creation isn’t just highly sensitive and dexterous, it's robust enough to survive impacts previous designs couldn't — all while integrating high-speed sensor networks...
Aug. 15, 2025
From plug-and-play to custom solutions, discover high-precision spur and planetary gearheads, as well as screw drives that perfectly match maxon electric motors with respect to...
Aug. 15, 2025
Take a peek inside the design journey of a dual-rotor drone suitable for confined-space inspection in industries such as sewer management, hydro power plants, oil & gas, and chemical...
Aug. 15, 2025
Explore extended capabilities for applications that demand a compact footprint and low weight, including a rigid speed-torque characteristic that optimizes control for precision...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!