ROV Buoy

syntactic foam

Syntactic Foam

  • Specification: Customized
  • Density: 0.08~0.7g/cm3
  • Depth: 0~11,000m
  • Applications: ROV, AUV, Offshore wind farm, Offshore energy
  • Features:
    1. Density adjustable: According to different working depths, different product densities are deployed.
    2. Excellent machinability: The excellent machinability allows it to be formed by machining according to the designed shape and size.
    3. Environmentally friendly: The material is non-toxic, harmless, and odorless, and does not pollute the environment.
  • Description: We have low-density buoyancy material for shallow water and medium-density syntactic foam for deepwater. We’ll recommend you the right buoy according to the operating environment of ROV. 

Data Sheet

Data sheet

Why ROV can float in water?

The reason why ROV can float in water is the adoption of ROV buoy. The density of ROV buoy is lower than the density of water, it can counteract the weight of parts on ROV, like the frame and the instruments.

There are two categories in common use. One is lightweight foam for shallow water, like PU foam and PVC foam. Another one is syntactic foam buoyancy for deep water. The buoyancy material for China’s new deep-sea manned submersible Fendouzhe is low density syntactic foam.

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Brief Introduction of Solid Buoyancy Material.

Currently, solid buoyancy materials mainly include polyurethane foam materials, copolymer foam materials, composite foam materials, and syntactic foam materials.

  • Polyurethane foam: The cost of pontoon material made of polyurethane foam material can be well controlled, but it is mainly used in water with a depth of fewer than 100 meters on the surface and below the water surface. When used underwater, this foam material must be completely covered by other materials to ensure that it is completely isolated from water, because this foam has water absorption. If it is in direct contact with seawater for a long time, the material will absorb water under the action of water pressure.
  • Copolymer foam: Cross-linked copolymer foam is a hard closed-cell foam that can withstand the static pressure of seawater without the need for a complete enclosure. This foam is usually processed into blocks or sheets, but before processing and testing, many key factors must be considered. The low-density foam of this copolymer material is suitable for short-term applications. If used in a continuous hydrostatic pressure load environment for a long time, this material will undergo plastic creep, deformation and volume reduction, so it will reduce buoyancy. The density of the material ranges from 0.04 to 0.4g/cm3, and the maximum working depth can reach 600m.
  • Syntactic foam: It is a new type of solid buoyancy material. The advantage of this material is that it can maintain sufficient strength in the case of extremely low density, and has the characteristics of high compressive strength, low creep, and low water absorption. This makes it possible to provide buoyancy and protection for the equipment in the deep sea.