Walnut Oil Processing Plant: How to Choose the Right Equipment and Process?

Walnut is a premium oilseed crop with an oil content of 65%–70%. Walnut oil extracted from kernels is highly nutritious and enjoys stable market demand. For investors planning to build a Walnut Oil Processing Plant, the choice of suitable Oil Pressing Equipment and Walnut Oil Production Process is critical to product quality and profitability.

Currently, walnut oil processing mainly relies on pressing process, which is divided into Cold Pressing and Hot Pressing.
▸Cold Pressing:Pressed below 60°C without high-temperature treatment, this method preserves the natural flavor and nutrients of walnuts. The oil can be consumed after simple filtration. However, the oil yield is lower, production costs are higher, making it more suitable for high-end nutrition-oriented markets.

▸Hot Pressing:Through high-temperature cooking, the oilseeds are heated before pressing. This significantly improves oil yield and production efficiency while producing a stronger flavor. The trade-off is partial nutrient loss and deeper oil color.

When it comes to pressing equipment selection:
▸Screw Press Machine: With high automation and efficiency, it is ideal for large-scale production, especially for factories focusing on output and cost control.

▸Hydraulic Press Machine: Featuring static pressing, it produces oil with better quality and flavor but with lower efficiency, making it suitable for small-scale plants that prioritize premium oil quality.

In conclusion, both Cold Pressing and Hot Pressing processes, as well as Screw Press and Hydraulic Press equipment, have their own advantages and limitations. Enterprises should make decisions based on production scale, market positioning, and target consumers.

As a leading Edible Oil Processing Equipment Manufacturer, QIE GROUP provides customized Walnut Oil Production Line solutions, from process design to equipment configuration, helping clients build efficient, high-quality walnut oil brands.