If you're running a small or medium-scale edible oil plant using the ZY24 (202-3) screw oil press, one of your biggest daily headaches might be frequent sieve blockages — not only slowing production but also increasing maintenance costs and reducing oil yield. The good news? Most of these issues stem from improper pre-treatment processes.
According to field data collected across 37 Chinese and Southeast Asian oil mills, over 68% of sieve clogs occur due to poor grain cleaning and inconsistent crushing particle size — not machine failure. By implementing standardized pre-processing steps, operators saw up to a 45% reduction in downtime and an average increase of 8–12% in oil extraction efficiency.
| Pre-Treatment Step | Recommended Parameter | Impact on Sieve Life |
|---|---|---|
| Oilseed Cleaning | Screen mesh size: 1.5–2 mm | Reduces foreign particles by 90% |
| Crushing Particle Size | 2–4 mm for soybeans, 3–5 mm for rapeseed | Minimizes fiber buildup in screen plates |
| Steaming Temperature | 95–105°C for soybean, 85–95°C for cottonseed | Improves oil flow, reduces mechanical stress |
At a 5-ton/day palm kernel processing facility in Johor, Malaysia, switching from manual sieving to automated magnetic + vibrating screening followed by precise crushing reduced sieve replacements from once every 3 days to once every 12 days. Their average daily output increased from 4.2 tons to 5.1 tons — a 21% boost without any new equipment investment.
This isn’t just theory — it’s what experienced operators at top-tier mills already do. Whether you’re working with soybeans, sunflower seeds, or sesame, consistent pre-treatment is the key to long-term performance.
Download our free “Pre-Treatment Checklist for ZY24 Screw Oil Press” PDF — including step-by-step visuals, oil-specific parameters, and troubleshooting tips used by successful mills worldwide.
Get Your Free Pre-Treatment Toolkit NowRemember: Every mill has its own rhythm. But when it comes to preventing sieve blockage — consistency beats complexity every time.
