Case Study: Continuous Press Line with Filtration Boosts Scale-Up for Small Oil Mills

Why Small & Medium Oil Mills Are Switching to Continuous Press Lines with Built-in Filtration

For decades, small and medium-scale oil mills have relied on traditional batch-style pressing systems—efficient in theory but increasingly outdated in practice. These setups often result in inconsistent yields, higher labor costs, and subpar crude oil quality that demands intensive refining. But a new wave of innovation is transforming how these operators think about scale, efficiency, and sustainability.

The Real Problem: Inefficiency at Scale

According to industry data from the International Association of Edible Oil Producers (IAEOP), over 60% of small oil mills using intermittent presses report average extraction rates below 87%. That means up to 8% of potential oil is lost during processing—a significant loss when margins are tight. Moreover, manual operation leads to variability in temperature, pressure, and press time, which directly impacts both yield and purity.

How Integrated Filtration Changes Everything

Modern continuous press lines equipped with real-time filtration systems—like those developed by Qingping Group—capture residual oil trapped in soybean cake as it exits the press. This isn’t just incremental improvement; studies show this feature can boost total oil recovery to over 95%, especially when paired with optimized screw speed and hydraulic pressure control.

In one case study involving a 3-ton/hour facility in Vietnam, after upgrading to a fully automated system with integrated filtration, the mill saw:

• Oil yield increase from 84% to 95%
• Reduction in downstream refining energy use by 22%
• Operational downtime cut by 40% due to fewer manual adjustments

Smart Controls = Less Human Error, More Consistency

What sets today’s top-tier machines apart isn’t just hardware—it’s intelligence. Features like automatic alarm triggers for overheating or blockages, plus parameter memory functions that recall optimal settings across batches, allow even non-specialist staff to run complex operations reliably. For many small mills lacking dedicated engineers, this turns “expert-level” performance into everyday reality.

Trusted by Global Operators, Built for Local Needs

Qingping Group has collaborated with OEM partners in India, Brazil, and Southeast Asia to tailor these solutions to local feedstock and regulatory environments. Our global service network ensures quick spare parts delivery—even in rural areas—and our clients consistently cite reduced operational stress as a key benefit.