Ireland's fishing industry is worth billions, but here's something most people don't realise: nearly half of what's caught ends up as "waste." On fishing vessels off our coast, time is money. Crews work under pressure to process their catch before it spoils, often throwing valuable by-products overboard or stockpiling them in cramped holds.
It doesn't have to be this way.
Global fish consumption keeps climbing, with people recognising the health benefits of omega-3 fatty acids. Yet for every fish fillet that reaches the food shelf, there's the head, bones, fins, organs and skin. In Ireland's fish factories and on our trawlers, these discarded parts traditionally meant one thing: waste.
The numbers tell the story. On a large fishing vessel that spends weeks at sea, storing raw fish remains takes up enormous space. Space is currency when you're operating on limited deck room. And on land, fish processors face the same challenge—how do you handle volume efficiently without losing floor space?
The same issue is emerging in seaweed processing, an increasingly valuable sector for Ireland. From nutritional supplements to industrial applications, demand is growing fast—but only if processors can efficiently utilise the entire plant rather than discarding parts as waste.
Here's where it gets interesting: those "waste" components contain valuable raw materials. Fish oil, fish meal, protein concentrates, seaweed extracts and bioactive compounds—products with real market value across food, agriculture, cosmetics and animal feed industries.
Vogelsang's RedUnit system does something clever. It combines grinding and pumping into one compact unit, turning solid fish and seaweed remains into a pumpable suspension that's easy to store, transport and process further.
Here's how it works:
Stage one: Fish residues or seaweed enter via a hopper and hit the XRipper twin-shaft grinder. Built from special steel in a monolithic block, it's incredibly robust. It handles tough, stubborn materials and shreds them to a precise, consistent size.
Stage two: If finer consistency is needed, the RotaCut macerator steps in, processing the mass to an even smoother pulp.
Stage three: The result is a pulpy suspension free from large foreign bodies—no risk of blockages damaging downstream pumps. An integrated progressing cavity pump (CC series) then transports it safely to storage or further processing.
For Irish vessels working weeks at sea, this is game-changing. The compact design means less storage footprint. For land-based processors, it's equally valuable—and it retrofits easily into existing facilities.
The RedUnit's clever design does more than squeeze materials into tanks. It uses gravity to move mass between levels, cutting unnecessary pumping and energy waste. It also features an automatic low-level sensor: when material runs out, the system shuts down. When it's topped up again, everything restarts.
You're only using energy when you actually need it.
Result? Lower energy bills, fewer maintenance headaches and higher plant uptime.
Vogelsang has equipped the RedUnit with an intelligent control unit that speaks the language of modern manufacturing. Everything connects via the platform-independent OPC UA protocol, no time-consuming installations, no compatibility headaches.
Plug it in. It works. All components and technical values display on a touchscreen. For Irish fish processors and seaweed producers looking to modernise operations and track efficiency in real time, it's a straightforward upgrade.
Irish fish processing contributes significantly to employment and export earnings. Seaweed processing is emerging as an exciting growth sector, with nutritional and industrial applications gaining traction. Both sectors share the same challenge: handling organic material efficiently while maximising value extraction.
The RedUnit addresses this head-on. It transforms what's historically been waste into a manageable product. It saves space on vessels and factory floors. It cuts downtime. It opens revenue streams from by-products that were previously discarded.
For Irish operators competing in global markets, efficiency and sustainability aren't nice-to-haves anymore, they're competitive advantages.
Fish consumption worldwide continues to increase as does seaweed products. Ireland's fishing fleet and processing facilities are positioned to meet that demand. But doing it efficiently—really efficiently—means rethinking how we handle the whole catch, not just the fillet.
Vogelsang's RedUnit makes that rethinking practical. It's a compact, intelligent, energy-conscious system built for exactly this challenge.
For Irish fish and seaweed processors looking to reduce waste, reclaim floor space and unlock value from by-products, it's worth a serious look.
Interested in learning more about the RedUnit for your operation? Get in touch with Vogelsang Ireland.