---- Offshore Cranes with AHC system
--Precise lifting equipment suitable for harsh marine environments
The offshore AHC (Active Heave Compensation) cranes are designed for oil and gas platforms, replenishment, wind farm installations, and subsea operations.
Affected by the undulation of the waves, the engineering vessel will sway with the waves during offshore operations. The sway of the hull directly leads to the instability of the hook of the underwater crane, increasing the difficulty of offshore operations and affecting the underwater installation work.
The offshore AHC cranes adopt the technology of the active wave heave compensation method and a hydraulic or electric drive system. It reduces the weight and center of gravity and minimizes the impact of wave undulations on the lifting equipment. In this way, it can cope with harsh marine environments and ensure the operations' precision, stability, and safety.
From small lifting equipment for offshore SOVs to large lifting equipment for subsea lifting, YFM cranes serve as the guardians of offshore engineering operations. Their modular design concept combines low power consumption with high performance.
What is the active wave compensation technology?
Active Heave Compensation (AHC) technology: It can automatically adjust according to the ship's movement, minimizing the load swing and ensuring precise positioning.
The wave compensation system is composed of active and passive components.
The passive part (pneumatic elastic device) offsets the static load. It includes a passive oil cylinder, an oil-gas separator, a pneumatic pressure control unit, and a cylinder.
The active part offsets the dynamic motion. It includes an active oil cylinder, a hydraulic control unit, a power station, an electrical control unit, and a motion sensor (MRU), which measures the ship's motion.
Key Features and Advantages
✔ Active Heave Compensation (AHC) technology
✔ Loads ranging from 5 tons to over 100 tons can be customized.
✔ High-strength weather-resistant materials
✔ Anti-collision system
✔ Overload protection system
✔ Emergency stop function
✔ Remote monitoring and control
✔ Optional electro-hydraulic/diesel-hydraulic drive
✔ Customizable configurations - knuckle boom, telescopic, or pedestal-mounted designs are available
✔ Compensation speed ranges from 0 to 120M/Min
✔ Compensation accuracy of ±5CM
✔ Compensation distance of ±2M or more
✔ Working area from 50 to 3000M underwater
Application fields
- Oil and gas platforms
- Offshore wind farms
- Subsea operations - Deployment of ROVs, pipeline laying, and installation of underwater structures.
- Marine engineering construction - Lifting of heavy modules and vessel support.
Why choose the YFM offshore Active Heave Compensation (AHC) crane?
✅ Proven performance - Trusted by leading offshore operation operators worldwide.
✅ Reduced downtime - Low-maintenance design enables continuous operation.
✅ Compliance with international standards - Certified by CCS, DNV-GL, ABS, LR, BV, etc.
Apply for a quotation now! Enhance your offshore lifting capabilities with our high-performance Active Heave Compensation (AHC) cranes. Contact our sales team for detailed specifications, pricing, and customized solutions!
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