24×4 1.7/8″ Hole Pressing Worm Oil Expeller

An oil expeller pressing worm, also known as an oil press screw or pressing screw, is a critical component of an oil expeller machine used in the extraction of oil from various seeds, nuts, and kernels. It’s a cylindrical shaft-like part with a helical or spiral structure that fits inside the barrel or cage of the expeller.

Here’s a breakdown of its description:

• Material: Typically made from high-quality alloy steel or stainless steel to withstand high pressure and friction during the oil extraction process.
• Design: The worm is characterized by a helical or spiral structure with varying pitches and thread profiles depending on the type of seeds or nuts it processes. This design allows for the gradual compression and extraction of oil as the seeds or nuts are fed into the expeller.
• Function: The pressing worm’s primary function is to compress and grind the raw material, creating pressure inside the expeller barrel. This pressure forces the oil to be released from the seeds or nuts, while the residual material (often referred to as cake or meal) is expelled through the small gaps between the worm and the barrel.
• Size and Dimensions: The size and dimensions of the pressing worm can vary depending on the capacity and design of the oil expeller machine. They can range from a few inches to several feet in length, with varying diameters and pitch sizes.
• Maintenance: Regular cleaning and maintenance of the pressing worm are essential to ensure efficient oil extraction. Over time, due to continuous use and exposure to friction and pressure, the worm might experience wear and tear, requiring replacement or refurbishment.
• Compatibility: The design and specifications of the pressing worm are crucial as they need to match the specific requirements of the seeds or nuts being processed. Different seeds or nuts might necessitate different screw configurations to optimize oil extraction.

In summary, the pressing worm in an oil expeller plays a crucial role in the mechanical extraction of oil by exerting pressure and friction on seeds or nuts to release oil while separating the extracted oil from the solid residue. Its design, material, and compatibility are essential factors in ensuring efficient oil extraction.