+86-18337191105 ZL-120 Fully and Semi-Automatic walnut oil press machine

1.Oil is extracted from a number of fruits, nuts and seeds for use is cooking and soap making or as an

ingredient in other foods such as baked or fried goods.

2.Oil is a valuable product with universal demand, and the possible income from oil extraction is

therefore often enough to justify the relatively high cost of setting up and running a small scale

oil milling business.

3.There are basically three methods of removing oil from the raw materials: solvent extraction, hot processing or cold processing.

1)Solvent extraction is not suitable for small-scale processing because of high capital and operating costs,

the risk of fire and explosions from solvents and the complexity of the process.

2) Equipment for hot or cold processing is available at different scales of operation from household to industrial scale.

3)Traditional methods of extraction are described below, followed by higher output manual machines and mechanized extraction.

Principle of extraction

Expellers are continuous in operation and work by grinding and pressing the raw material as it is carried

through a barrel by a helical screw.

The pressure inside the barrel, and hence the yield of oil.

Are adjusted useing a 'choke' ring at the outlet.