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Optilice 4 XL delousing

M/V VOLT Processor - Optilice 4 XL delousing treatment - (cooled or) lukewarm water

Our vessel VOLT Processor is equipped with a complete Optilice 4 XL delousing treatment system, with both lukewarm water and cooled water as an option (please note that the cooling unit will be installed later). In addition the vessel has built in several features that are unmatched by others.

We can provide delousing treatments to customers in Norway and UK. The vessel is classified for unrestricted navigation and has ballast water treatment system installed for international sailing.
The vessel VOLT Processor was delivered new from the yard medio 2018. It is the most modern specialised vessel in the world for delousing treatments. The Optilice 4 XL treatment system was delivered from Optimar in June 2018. The vessel is unique when it comes to technology and will provide safe operations for the fish, customers and crew.

The vessel  - specially designed for delousing treatments

The vessel is newbuilt in 2018 and it is designed around the Optilice 4 XL system. The capacities is optimised for purpose and operational needs are taken into the consideration in all aspects of the vessel.

Special features of the vessel:
  • Diesel-Electric system to power the propulsion and deck equipment. The same generators will support all operations onboard
  • Extreme maneuverability
  • Protection cages around all propellers
  • DP system
  • Ballast water treatment system installed. This will eliminate the risk of bringing live organisms from one zone to another
  • Sewage treatment system installed
  • Permanent magnet motor thrusters (reduced fuel consumption)
  • TIR 2 engines (less emissions)
VOLT Processor location 7
M/V VOLT Processor:
Length: 43 meter
Breadth: 12 meter
Draught: 2,5 meter
Work deck: 350 m2
Accommodation: 10 persons
Cranes: 4
Capstans: 6
Mooring winches: 2
VOLT Processor turning

The Optilice 4 XL system itself - the new generation

Experience from several earlier versions and other delousing systems has been used to create the new generation Optilice 4 XL delousing system. It is optimized with regards to animal/fish welfare and gentle treatment. 

It is also unique that the system has been designed to switch between using cooled water and lukewarm water for delousing. This will reduce the risk of the lice to develop resistance against one treatment method.

In short the Optilice 4 XL offers:
  • New and better design for fish welfare and hygiene
  • Higher capacity
  • Lower lifting height and more space for the fish
  • Improved distribution system between the treatment zones
  • Complete automatic washing of the entire system
  • Newly developed 16 inch pumping system for more gentle handling
  • New and even better louse filter solution
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2 lines Optilice 4 XL with minimum 200 tons per hour.
The actual throughput will be a decision taken by the operators and farmer together based on several factors.

Oxygen injection into the pen and the treatment system

The vessel is equipped with large Oxygen generators. To our knowledge this is the only delousing treatment vessel that can inject water enriched with oxygen to the pen where the fish are collected to be pumped onboard to the treatment system. This results in better welfare and a fish in better condition that is treated in the system.

This system also eliminates the need of oxygen bottles handling and therefore safer operations.

A major investment that we believe will benefit the fish, crew and farmer.
Oxygen generator - VOLT Processor

Digital Platform - extensive database - "big data"

Our treatment system is connected to Optimar Commander, a digital cloudbased platform. We have installed an extensive sensor package into our system to log as many variables as possible during the fish treatment. In addition we will register all known fish health data, weather, etc for each treatment to get a wider picture. This we do to build an extensive database of treatment results and use this as decision support for future treatments to achieve the best possible result for each treatment - based on unique knowledge.

Our customers can also follow the treatment process "live" on their computers, pads, phones etc. from any location. This will give better comfort for all involved parties since things can be continuously monitored and checked.

The treatment report generated from our system will be the most extensive in the industry.
VOLT Processor location 10

Great flexibility in fish handling 

Our system is designed with great flexibility to how the the fish can be loaded and discharged. 

The fish can be:

  • loaded at starboard side and discharged to the same pen on starboard side.
  • loaded at starboard side and discharged to a pen on port side.
  • loaded at stern and discharged at the bow on starboard side.

The system is designed so that the rigging can be done quickly. 

VOLT Processor location 2
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The crew onboard - competent and experienced

The performance of the vessel and Optilice 4 XL system is all about the crew performance - which is a result of their competence, experience and familiarisation - and the tools they have available.


Contact information

Chartering contact main office:
Call Robert Søviknes at +47 975 30 850 for availability or send e-mail to

Phone bridge: +47 45 37 51 85
Robert Søviknes

Do you need more information?

Please contact us