Heave Compensation Systems

FET’s Dynacon product line manufactures a range of Heave Compensation Systems tailored to mitigate vessel motion and protect deployed packages according to our client’s specific requirements and applications. We offer three types of heave compensation control systems:

  1. Passive heave compensation includes manually adjusted controls.
  2. Active Over Passive adds an electro-hydraulic power unit that actively supplements the auto-passive system.
  3. Active Type heave compensation includes a monitoring package and control system that optimizes its performance.

Passive Type

  1. Requires no electronics,
  2. Simple to operate,
  3. Accumulator / Cylinder circuit,
  4. Large heave capable with low input effort,
  5. >99% up time.
  6. Applicable for crane, multiple sheave heave compensators

Active over Passive Type

  1. PLC based control,
  2. Utilizes compressor to adjust pressure in accumulators,
  3. Active on the gas side loop,
  4. Passive on the hydraulic loop,
  5. Applicable for crane, multiple sheave heave compensators,
  6. >97% up time

Active Type

  1. Computer based control, (Scantrol)
  2. Controls hydraulic pump or electric drive motors directly,
  3. Acts as a remote control,
  4. Easily retrofittable,
  5. Performance is directly related to the power level of the system,
  6. Applicable for direct pull winches, traction winches,
  7. >97% up time

Dynacon will assist you in determining the best method of compensation for your application. The importance of a properly sized hydraulic power unit that has sufficient horsepower and flow dynamics is critical to maximize the performance of an active heave system.

Dynacon is an authorized Scantrol active heave compensation OEM.

CTD Motion Compensated Cranes Model 1075

  • 3,400 kg safe working load
  • +/- 1.25 meters of vertical compensation range
  • 5.5 meters overboard reach

CTD Motion Compensated Cranes Model 630

  • 1,800 kg safe working load
  • +/- 1.25 meters of vertical compensation range
  • 7.0 meters overboard reach

Flying Sheave Heave Compensator Model 501

  • 9,000 kg safe working load
  • +/- 2.75 meters of vertical compensation range
  • 1.2 meter sheave tread diameter

Flying Sheave Heave Compensator Model 1160

  • 15,900 kg safe working load
  • +/- 3.5 meters of vertical compensation range
  • 1.2 meter sheave tread diameter

Contact us for up-to-date price and delivery

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