What are the common oil presses in small peanut oil processing plants?

As a common edible oil variety, peanut oil is widely used in small processing plants. Choosing a suitable oil press is crucial to ensuring oil quality and improving production efficiency. The following are several types of oil presses commonly used in small peanut oil processing plants and their characteristics:Small-scale peanut oil processing plants require reliable and efficient machinery to maximize oil extraction while balancing operational costs and product quality. Three primary types of oil presses are widely used in such facilities: screw oil presses, hydraulic oil presses, and integrated pretreatment-pressing systems. Each type offers unique advantages tailored to different production scales, budgets, and market demands.

1. Screw Oil Presses: Continuous Efficiency for Small and Medium Scale Production

The first common oil press in small peanut oil processing plants is screw oil presses, also known as expeller presses. Due to its high degree of automation and continuous operation, it has become the mainstay press of many small peanut oil processing plants.These machines employ a rotating screw shaft to generate mechanical pressure, gradually squeezing oil from peanut kernels. Designed for moderate daily outputs, models such as the YZYX Series can process 5–20 tons of peanuts per day, achieving an oil yield of 35–45%, depending on kernel quality. Their compact design, low energy consumption, and minimal labor requirements make them ideal for cost-conscious operations. However, the crude oil extracted may contain residual solids, necessitating additional filtration steps to meet market standards for clarity and purity. The YZYX series single screw oil press machine produced by Henan Glory Company is suitable for small edible oil processing plant or small cooking oil processing plants. This series of single screw oil press machine can be widely used for pressing peanut oil, soybean oil, rapeseed oil, sunflower oil, cottonseed oil and so on.

Screw oil press

2. Hydraulic Oil Presses: Precision and Purity for Premium Markets

The second common oil press in small peanut oil processing plants is hydraulic oil Press. Automatic hydraulic oil press machine is a kind of small scale oil press machine, usually used at home or mini oil mill. Hydraulic oil presses are favored by producers prioritizing oil quality over production speed. These machines use hydraulic pressure to compress peanut meal in batches, resulting in a slower processing rate of 1–5 tons daily but a higher oil recovery rate of 40–48%. The gentle pressing action preserves the natural flavor and nutrients of peanuts, making hydraulic presses ideal for cold-pressed or premium-grade oils. The extracted oil typically contains fewer impurities, reducing the need for extensive post-processing. Compared with screw oil press, Henan Glory Company 's hydraulic oil press is environmental protection and energy saving. There is less noise during operating. It is physical pressing without heating, no addition of any chemical substances. However, their batch-based workflow and reliance on manual operation may limit scalability for expanding businesses. Hydraulic presses are best suited for niche markets where oil purity and artisanal production methods add value to the final product.

Hydraulic oil press

3. Integrated Pretreatment and Pressing Systems: Streamlined Workflows

The third common oil press in small peanut oil processing plants is integrated pretreatment and pressing systems. Modern small-scale plants increasingly adopt combined systems that integrate preprocessing steps—such as cleaning, shelling, and roasting—with oil pressing. For instance, the 6YL Series combines a screw press with vibrating screens, crushers, and roasting machine. Preheating peanuts at 120–130°C before pressing enhances oil fluidity, improving extraction efficiency by 3–5% while enriching the oil’s aroma. These systems minimize manual handling, reduce processing time, and ensure consistent quality. Although the initial investment is higher compared to standalone presses, integrated units eliminate bottlenecks caused by fragmented workflows, making them a cost-effective choice for plants aiming to scale up production without compromising on output standards.

Integrated pretreatment and pressing systems

For small peanut oil processing plants, the choice of oil press significantly impacts profitability and product appeal. These are the common oil presses in small peanut oil processing plants. Screw presses provide a balance of speed and affordability, hydraulic presses cater to quality-focused markets, and integrated systems deliver comprehensive efficiency. By aligning equipment selection with operational needs and market trends, small-scale producers can carve out a competitive edge in both local and specialty markets. As a professional manufacturer of cooking oil processing machine, Henan Glory Company has overseas warehouses in Nigeria. It can directly provide you with common oil presses in small peanut oil processing plants. Looking forward to your inquiry.