MOS system on sea

High-speed Sweeper MOS Systems

High-speed sweeper MOS systems

The Lamor and Egersund Group Marine Offshore Sweeper system, MOS, is an innovative, vessel mounted oil spill recovery system that comes in sweeping widths ranging from 15 to 50 meters. The unique design allows operation in waves up to 3 m and at towing speeds up to 4.5 knots. The MOS can be operated from supply/offshore supply vessels, fishing vessels, coast guard vessels, and stand-by vessels.

“The sweep systems are excellent for recovering spilled oil and concentrating the oil in the apex with high efficiency ”

How it works

A multi-barrier system, the MOS consists of numerous deflectors organized in a herringbone pattern. This creates hydrodynamic currents that concentrate oil into the recovery channel and guide the contained oil to a skimmer and pump in the apex of the sweeper. Water flow is reduced by a bottom net, increasing the concentration of recovered oil before reaching the skimmer inlet. It is rapidly deployed and ready to use in less than 30 minutes ensuring a fast response to emergency incidents. Containerized systems are available for easy transportation and protected storage. The system has enhanced maneuverability and wave conforming characteristics compared to other conventional booms and is very cost-effective in contrast to systems that need two boats to function. The MOS Sweeper, when combined with an additional skimmer, pump, and ParaVane, is a complete single vessel oil containment and recovery system that can chase, collect, skim and pump oil. There are several systems options, including a brush skimmer addition and a variety of pumps to select from that can be equipped to the Sweeper system.


  • Single vessel advancing system
  • Recover all types of oil
  • Modular system

Scenarios of use

  • Near shore
  • Harbors
  • Off shore

Related equipment

Technical Specifications
Item ID397440
Sweeping width25 m / 82 ft
Length50 m / 164 ft
Weight1400 kg / 3090
Skimming speed2,3 m/s / 4,5
Oil Encouter Rate
(in 1mm oil layer)
208 m3/h / 916
Wave Heights0-3 m / 0-10
Optional SkimmerVarious
Optional Pump115-280 m3/h /
506-1,233 gpm
Optional Paravane25/50
Optional ReelH 2240 or U
Collector Pool
MOS 25

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