Winches
Compared to hydraulic systems, electrical motors controlled by a VLT® or VACON® drive provide substantial energy savings, low noise operation and no risk of hydraulic oil leaks. Drives enable excellent speed and tension control and load sharing with several motors driving the same winch.
Advanced mechanical brake control eases stress on both gear and brake, while automatic DC hold preheating keeps the motor dry in standby mode. Robust open-loop control eliminates the need for fragile encoders in open deck environments. To enhance reliability, use highly dynamic active heave compensation functionality, which actively lifts the cargo.
Danfoss Drives’ solutions for the marine and offshore industry have the highest number of class type approvals from nine authorities: DNV-GL, ABS, Bureau Veritas, Korean Register, CCS, RINA, Lloyds Register, RMRS and Class NK.
This gives you the best possible choice when selecting drives for your marine application.
Cranes
Variable speed drive control of cranes provides higher availability and productivity, compared to traditional hydraulic cranes. By using a drive, owners avoid overheating in the hydraulic oil system and typically benefit from a 15% shorter cycle time, due to faster movements.
The result is an environmentally friendly and efficient system characterized by:
- Elimination of hydraulic fluid leakages
- Only marginal losses in standby mode
- High efficiency during normal operation
AHC winch control for 3000m depths
VACON drives provide precise, reliable and robust winch control for subsea oil operations.
Products
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Designed for a broad range of demanding applications, focusing on higher power sizes and system drives.
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The VLT® AutomationDrive FC 301 / FC 302 is designed for variable speed control of all asynchronous motors and permanent magnet motors. It comes in a standard version (FC 301) and an advanced high dynamic version (FC 302) with additional functionalities.
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Well-suited to applications where air quality is critical, space is limited and efficient heat transfer is required. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB) and Inverter (NXI) configurations are available.
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Enter a new dimension of opportunities with this ultra-compact drive. As well as high power density, iC7-Marine gives you a powerful combination of intelligence and shaft performance, ready for the most challenging of applications.
Related applications
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To optimize crane and hoist performance, Danfoss offers flexible control strategies combined with energy efficiency, operating within stringent safety requirements.
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By running winches and cranes on an electric motor you can achieve energy savings, low noise operation and no risk of hydraulic oil overheating or leaks.
Case stories
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NETHERLANDS: The Telstar saves 20% on operating costs compared to traditional tugboats.
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NORWAY: VACON® Common DC Bus modules help provide precise, reliable and robust winch control.
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VLT® AutomationDrive FC 302 and VLT® Soft Starter MCD 500 provide quick and accurate control of high- and low-pressure seawater pumps on the remotely operated trencher laying HVAC subsea cables.
Contact us
For further information please contact us