Stranda Prolog is a specialist in bulk handling, from when the fish arrive at the harvest plant in various formats until finished chilled and ready for gutting. In addition, we have good solutions for manual gutting plus buffer and post chilling later in the process. Stranda has for decades been the driver and market leader in this segment to the industrialized part of global fish farming. We work closely with customers for find solutions that are efficient, precise, solid, hygienic and optimal for fish quality.
Fish handling at Stranda Prolog means to pump fish as gently as possible. This gives the best fish quality and economy.
We have a long experience in handling and transporting live or dead fish. The projects Stranda has delivered varies from relatively simple pump challenges to the most demanding regarding capacity, distance, and height. When fish are to be lifted more than 4-5 meters, the best technology is our vacuum/pressure pumps.
Our solutions are complete and adapted to customer needs.
After pumping, fish and water needs to be split. This can happen in a dewatering unit or over a grading table. Often it is an advantage to separate the fish in two size categories to make the stunning machines work as well as possible. We have solutions for water handling from dewatering and grading units. If desirable, we can return the water to where the fish is pumped from. Stranda has a long experience in this area and supplied numerous dewatering units and grading tables for different applications and capacities.
Cooling is far more efficient with live fish than dead fish, because the fish pump cold blood from the gills to the whole body. Low temperature is crucial to achieve top fish quality.
Stranda strongly believes that percussion stunning is the method that gives the best fish welfare, bleeding, product quality and longest pre rigor time. A long pre-rigor time simplifies further processing and improves yield. You also avoid broken spines and blood spots.
After stunning the fish may be automatically bled in the same machine or manually on the control table. Stranda has for many years supplied the whole reception and killing system for live fish to harvest plants and harvest vessels. In the past we have integrated third party stun and bleed solutions, but from 2021 we have our own stunning machine.
Stranda has developed and produced HeliX tanks since 1993. Our HeliX tanks are market leading and is used for bleed out and cooling after bleeding, as buffer storage after gutting and for maturation before fileting. Our Prolog tank system is a good alternative when indoor space is limited or challenges in regards to heights.
In a typical harvest plant delivery from Stranda Prolog we supply all the sections before the gutting machines included fish transport to the gutting section. For various reasons like extreme sizes, deviations in form and condition for some of the fish, a manual gutting line is needed.
Central vacuum from Stranda solves numerous logistic and hygienic challenges in a harvest plant or secondary processing plant and maximizes biproduct value. Stranda’s flexible and reliable vacuum systems collects biproducts from gutting machines, gutting tables and filet lines and send it to cyclones.
Our cyclone setups are customized to desired number of fractions with adapted vacuum capacity. In salmon harvest plants the most common is 3-4 biproduct fractions. We dimension the vacuum pumps with controls adapted to your piping system and production volume. The biproducts are either being pumped or sluiced out of the cyclones to maintain a set level inside.
The pipe system can be completely emptied, and we prepare the systems for CIP cleaning.
The control system has several modes and communication interfaces with other systems like processing machines, ensilage, CIP, etc. The operator runs the system from a local screen or from a control room.
Cleaning is crucial to create an efficient and secure operation of a fish factory. Where possible we facilitate CIP (Cleaning in Place) cleaning and supply the systems needed. Compared to manual cleaning, CIP is quicker and more efficient.
Stranda Prolog supplies software, digitalisation, and automation solutions for the seafood industry. Our engineers, automaticians and software developers have wide competence and understanding of harvest plants, support systems and technology for treatment, transport, and processing of fish.
The software developers engage in interdisciplinary cooperation with the other departments at Stranda Prolog to develop the best products both at machine and total system level.
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