Meanwhile Life Longer Fully Automatic pet food /fish food processing line particles adjacent the screw will rotate along with screw's rotating, causing every particle adjacent the screw will rotate along with screw's rotating, causing every particles insides the chamber to posses different speed. Therefore, relative movement among particles creates heat which is necessary during manufacturing because of helping protein change properly, damage cold oil ,decrease plasticity, decrease oil, elasticity, resulting in high oil productivity.

The all-wet process uses raw coconut rather than dried copra, and the protein in the coconut creates an emulsion of oil and water.The more problematic step is breaking up the emulsion to recover the oil. This used to be done by prolonged boiling, but this produces a discolored oil and is not economical. Modern techniques use centrifuges and pre-treatments including cold, heat, acids, salts, enzymes, electrolysis, shock waves, steam distillation, or some combination. Despite numerous variations and technologies, wet processing is less viable than dry processing due to a 10-15% lower yield.
Proper harvesting of the coconut makes a significant difference in the efficacy of the oil-making process. Copra made from immature nuts is more difficult to work with and produces an inferior product with lower yields.
Life Longer Fully Automatic pet food /fish food processing line Conventional coconut oil processors use hexane as a solvent to extract up to 10% more oil than produced with just rotary mills and expellers. They then refine the oil to remove certain free fatty acids to reduce susceptibility to rancidification. Other processes to increase shelf life include using copra with a moisture content below 6%, keeping the moisture content of the oil below 0.2%, heating the oil to 130-150 °C (266-302 °F) and adding salt or citric acid.
Life Longer Fully Automatic pet food /fish food processing line Conventional coconut oil processors use hexane as a solvent to extract up to 10% more oil than produced with just rotary mills and expellers. They then refine the oil to remove certain free fatty acids to reduce susceptibility to rancidification. Other processes to increase shelf life include using copra with a moisture content below 6%, keeping the moisture content of the oil below 0.2%, heating the oil to 130-150 °C (266-302 °F) and adding salt or citric acid.
Jinan Joysun Machinery Co., Ltd. provide hydraulic oil expeller and scew oil press machine to extract the coconut oil forits customers. Big production capacity, automatic lifting, pressing and filtering are features of screw oil press machine, also a coconut oil production line is available too. Contatc us for detail.

Commercial fish feed

Manufactured feeds are an important part of modern commercial aquaculture, providing the balanced nutrition needed by farmed fish. The feeds, in the form of granules or pellets, provide the nutrition in a stable and concentrated form, enabling the fish to feed efficiently and grow to their full potential.

Modern fish feeds are made by grinding and mixing together ingredients such as fishmeal, vegetable proteins and binding agents such as wheat. Water is added and the resulting paste is extruded through holes in a metal plate. The diameter of the holes sets the diameter of the pellets, which can range from less than a millimetre to over a centimetre. As the feed is extruded it is cut to form pellets of the required length. The pellets are dried and oils are added. Adjusting parameters such as temperature and pressure enables the manufacturers to make pellets that suit different fish farming methods, for example feeds that float or sink slowly and feeds suited to recirculation systems. The dry feed pellets are stable for relatively long periods, for convenient storage and distribution. Feeds are delivered in bulk, in large bags—usually one tonne, or in 25 kilogram bags.

Twin-Screw Extrusion System

The twin-screw extrusion system consists of the twin-screw extruder, the pLife Life Life Longer Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing lineditioner as well as the accompanying machine control system. It is especially tailored to the needs of high-end feed pellet production, particularly the production of industrial fish farming

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Complete Extrusion System Flowchart:

SPH series high efficiency twin screw extruder introduction(real machine picture below:)

The extruder with an exchangeable and hydraulically adjustable die is an advancement of the Life Life Life Longer Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing line annular gap expander. The user-friendly and flexible plant is available in different sizes. Many parameters can be infLife Life Life Longer Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing line Fully Automatic pet food /fish food processing lineced to obtain an optimum product quality:

• Starch is modified by 90 %
• The device can be used for feeds for all animal species
• High water absorption capacity
• High fat contents of up to 30 % for high energy feed are possible
• Different product shapes are possible

Shaped fish feed

• Floating or very slowly sinking pellets for tilapia, carp, catfish
• Slowly sinking pellets for trout, salmon, and perch
• Water-stable pellets for crustaceans
• Rearing feed with a granular size of Φ 1.2 --- 12 mm