FISH RENDERING MACHINES

WHAT IS FISH RENDERING?

Fish rendering is the process that converts fish waste into valuable products for animal feed. Waste products come mainly from fish processing plants. Parts of the body that can be processed: heads, particles of flesh, skin, bones, entrails, and liver. During processing, fish by-products are sterilized and dried for final moisture of about 10%. Low oil and moisture content ensure a long storage time. For the production of 1 kg of fish meal, 4 kg of fresh fish is needed. It is a perfect source of highly digestible protein with essential vitamins and minerals and long-chain omega-3 fatty acids.

Oil and proteins quality depends on the raw material used, the applied processing method, and equipment. Rendering is usually carried out on an industrial scale. It relies on drying and separating the bones and protein from fat. The main products coming from fish by-products plants are fish meal and fish oil. Seafood processing systems can be installed on land-based plants and on board fishing vessels. Taking into account the source of fishery by-products used for the production of high protein meal and oil can be divided into three types.

• Small, bony, and oily fish harvested such as horse mackerel, anchovy, menhaden, sandeel, capelin, blue whiting, and herring
• By-catches from other fish sources
• Offal and trimmings leftover from fish processed for human consumption

Raw fish is expensive to transport because it contains approximately 70% of water, and it has to be processed as soon as possible because it is easily becoming rotten. It can be stored only for a short time. Protein meal can be burned and destroyed, therefore utilization of good quality equipment is necessary. Disc dryer ensures high quality, reliability, easy operation, maintenance, continuous drying, and profitable operation for many years. Robust and heavy-duty design can withstand wear from sand, stones, and shells contained in the material. For meal plant energy efficiency, it is recommended to install a waste heat evaporator system that is able to save energy for about 30% to 40%. 

TG-Machines is specializing in designing and manufacturing machines for seafood rendering plants. Machines made by our company are known for their safety, high energy efficiency, and reliability. Our machines are made for products not intended for human consumption, TG-Machine's extensive experience in the fish meal production industry can fulfill specific needs and customized solutions for our customers. Produced equipment can be used for transportation, drying, cooling, handling, and grinding of material. High quality of the machines and satisfaction of our customers are very important factors for us. Our strategy focuses on high-quality product production and on the efficient utilization of energy and raw material.

WHAT IS FISH MEAL USED FOR?

Fish meal is a dried and sterilized powder, mainly made for animal feed. It is the best available product on the market, which delivers complete, balanced, and nutritious protein content. A valuable protein meal is used for feeding chickens, pigs, fishes, and shrimp. It is used as a protein supplement in compound feed. In 2010 56% of protein meal was utilized to feed fish farms, 20% for pigs feed, 12% poultry feed, 12% other utilization with fertilizer application.