Centriflow Wet Rendering System
Unlock more value from your raw materials with the Alfa Laval Centriflow wet rendering system. Transform insects and meat, poultry or fish by-products into high-value fats and proteins for food- or feed-grade applications. Centriflow boosts yield, reduces steam consumption, and lowers your carbon footprint. Plus, it also helps you extract more, waste less and lift profitability.
Upcycle fresh raw materials on-site and retain more value in-house
- Higher fat yields, leaner proteins
- Reduce steam consumption
- Boost your sustainability credentials
- Maximize profitability by upcycling on-site
- Minimize reliance on third-party rendering companies
Increase high-quality fat yields and get higher-quality proteins from every batch. Compared to conventional systems, the Alfa Laval Centriflow Wet Rendering System can deliver about 10% more fat — while producing higher-quality proteins.
The gentle, low-temperature processing of this wet rendering system contributes to better colour, product stability and overall yield. Unlike other methods, it removes water through centrifugal separation and efficient evaporation — cutting steam use by up to 40%.
Compact, flexible and easy to scale, Centriflow makes it simple to upcycle raw materials on-site, reducing your reliance on third-party rendering companies.
Built for seamless integration. Proven to perform. Designed to deliver more.
Extract more fats, higher-quality proteins –and maximize returns
Alfa Laval combines deep industry expertise with proven animal by-product processing technology to support your success. Whether you’re designing a new plant, scaling up, upgrading, or optimizing operations, our experts help future-proof your processes. Unlock more. Waste less. Grow sustainably.
Meat processing
Unlock the full potential of your meat by-products. Recover high-quality proteins and fats for pet food, animal feed, and food ingredients – getting extra value out of every cut.
Get more value from every cut – whether you run a slaughterhouse or a rendering plant. Alfa Laval Centriflow helps you turn meat by-products into profit. This system produces high-purity fats, lard or tallow that are light in colour, low in odour, and low in free fatty acids—ideal for food- or feed-grade applications. It also delivers lean, low-moisture proteins that are easy to handle and attract higher value on the market.
Poultry processing
Generate more revenue from poultry by-products by extracting premium fats and proteins for pet food, animal feed, and food ingredients.
Turn poultry by-products into high-value products. Centriflow enables the efficient recovery of light-coloured, low-FFA poultry fats and high-quality proteins – ideal for applications like food-grade protein and oil as well as pet food and animal feed. Whether your goal is is reduce waste, boost revenue or meet strict product specs, Centrfilow helps you get more from your raw material.
Fish processing
Turn fish by-products into high-margin products such as omega-3 oils and proteins for pet food, animal feed, aquaculture feed, or even food ingredients.
Maximize returns from every catch. Whether you’re processing salmon, whitefish or pelagic species, Alfa Laval Centriflow helps you recover omega-rich oils and high-quality proteins — while cutting waste, energy use and water consumption. From raw material handling to final product finishing, Alfa Laval systems are built for reliability, performance, and easy integration into new and existing lines.
Insect processing
Increase your margins by extracting lipids and nutrient-rich proteins from insects.
Unlock more from every batch. Alfa Laval Centriflow efficiently extracts lipids and proteins from crickets, meal worms or black soldier fly larvae. Gentle heat treatment and hygienic design preserve product quality and nutritional value. From pilot to full-scale production, we help you fine-tune performance, scale confidently, and customize a solution to meet your needs.
How the Centriflow Wet Rendering System works
Alfa Laval Centriflow uses a gentle, low-temperature wet rendering process to maximize product quality and value from insects and meat, poultry, and fish by-products.
Raw material preparation
The raw material can be supplied through various methods. Before processing, it passes through a metal detector, if available, to check for contaminants. If the system detects metal, it rejects that portion to protect the grinder and downstream equipment. Once cleared, the raw material enters the grinder, where it is cut to the ideal size for efficient heating in the next stage.
Heating process
A pump transfers the product, now reduced in size, for heating to either: (1) an Alfa Laval Direct Steam Injection (DSI) Heater, or (2) an Alfa Laval Contherm scraped surface heat exchanger for indirect steam heating.
Separation
The preheated product enters a two- or three-phase decanter centrifuge, depending on the raw material. The decanter separates the product into a solid phase, a liquid phase (stick water) and fat/oil.
The stick water and fat are collected in separate buffer tanks, typically equipped with direct steam injection nozzles or heating jackets with agitators to maintain optimal conditions.
Fat clarification and stick water processing
The stick water, which still contains some fat, may undergo further clarification (optional) in a separator to remove residual fat. The fat from the buffer tank is also sent to a separator for further purification.
Stick water concentration and drying
An AlfaVap plate evaporator, concentrates the de-fatted stick water using:
- thermal vapor recompression (TVR)
- mechanical vapor recompression (MVR)
- waste heat from the dryer
The concentrated stick water is then mixed with decanter solids and sent to the dryer for final processing.
Final oil drying
The purified oil from the separator is often processed in a vacuum dryer, reducing moisture content to achieve the highest quality.
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