It is definitely a very great choice to start vegetable oil processing business in Tanzania. There has rich raw materials for various vegetable oils, great demand for the high quality vegetable oils. And, now all you need is the high quality oil processing machines, including oil press and oil refining. In order to make your investment of oil production in Tanzania more reliable and profitable, a great way is to start small scale oil pressing plant since it requires low investment, simple equipment but high oil output.

HONG DE is one of the largest original oil processing machine manufacturer and exporter. We have built a lot of oil pressing project in Africa, such as Togo, Ghana, Malawi, Nigeria, Zambia, Tanzania and more. We have rich knowledge about the vegetable oil production industry in Tanzania.

Peanut is a kind of oil crop with high oil content. The residual oil in oilcake can be reduced to 6.5% by second pressing. The temperature of the whole process of cold pressing is required to be below 60℃, so that to guarantee the quality of cold pressed oil. When it comes to the extraction of oil from groundnut seed, there are two common oil extraction process: cold press and hot press. In order to improve the oil yield, hot press is usually adopted.

Cold Pressing Process: Peanut kernel → cleaning → crushing → oil pressing → filtering → cold pressed peanut oil
Hot Pressing Process: Peanut kernel → cleaning → crushing → cooking / steaming→ oil pressing → filtering → expeller pressed peanut oil

Screw type of oil press machines are the best choice for groundnut oil extraction. It uses friction and pressure in th epressing chamber to extract oil from groundnut. The residue or leftover of peanut oil production is known as peanut oil cake. Feel free to contact us if you interested to get more information and cost details about our groundnut oil machine. Tell us the kind of your oilseeds, desired output and cost budget, then we can offer your the most suitable equipment and send detailed price list!

These are our peanut oil machines based on mechanical pressing technology. They are featured of high capacity and low cost. The oil extraction performance of these machinery are excellent and they also have lots of improvement including easy operation and wide applicability. The peanut / groundnut oil making machinery we supply can be widely applied to extract oil from various oilseeds and nuts including cocoa beans, soya beans, sunflower seeds, palm kernel, cotton seeds, mustard seeds and so on.

Peanut Oil Manufacturing Process

For peanuts with shells, husking machine is needed to remove the shells.

• Peanut Cleaning

Screening machine, de-stone machine and magnetic separator are the common cleaning machine for pre-treatment of groundnut in oil extraction plant. They are adopted to remove certain impurities such as sand, stone, and metal, so that to improve the oil yield and production efficiency, and reduce wear rate of accessories. The immature, mildewed and broken peanuts should also be separated by the grading screen, which can be used to produce second grade peanut oil or be sold separately.

• Cooking / Steaming

Roasting temperature is the key factor to produce peanut oil with fragrance. Too low, the fragrance will be weak, too high, it is easy to burn. In most situation, 180℃~200℃ is suitable. In order to prevent over cooked, the seeds should be cooled immediately, and then be crushed in toothed roller crusher.

• Crushing (Optional)

Groundnut can be pressed as whole seeds in peanut oil making machine. But after crushing and flaking by use of roll crusher and flaking machine, the oil yield can be significantly increased. During the crushing process, the red skin of peanuts can be separated by wind selector, and to be used as raw material for medicine and chemical industry.

• Oil Extraction Process

Screw type groundnut oil making machine is used in this process. Pressing temperature: 135℃; Moisture content 1.5%~2%. The residual oil rate can be reduced to 2% with twice pressing process. The crude peanut oil will be filtered by plate and frame filter, and then be sent to the refining machine. The oilcakes can be further processed in solvent extraction workshop to extract the residue oil, or be sold to feed mill plant.

• Peanut Oil Refinery

In some cases, the expeller pressed oil is required to be refined to produce high quality edible oil.

Main Features:

Widely-used:it can be used to completely press more than 20 kinds of oil crops,such as peanuts,sesame,vegetable seeds,soybean,oil sunflower and flax by three stages pressing,low residual oil ratio.

Pure oil quality:the vacuum oil filtering is used to remove residue so as to ensure the pure oil quality and meet the standard of health quarantine.