How to choose a suitable commercial oil press machine?
In the oilseed processing industry, commercial oil press machines have become indispensable equipment due to their high efficiency and versatility.
This article provides a technical breakdown of four mainstream types—hydraulic, fully automatic, peanut-specific, and semi-automatic models—analyzing their specifications, working principles, and ideal applications to guide businesses in selecting optimal equipment.
Technical comparison of commercial oil press machines
The hydraulic oil press (6YZ series) operates at 55MPa ultra-high pressure with electric heating, offering batch processing capacities ranging from 2-4kg to 7-18kg. Its integrated separator reduces impurities to <0.3%, making it ideal for high-value seeds like sesame.
The fully automatic screw press (6YL series) achieves continuous production with vacuum filtration, delivering up to 350kg/h throughput and 5-8% higher oil yield than semi-automatic models.
For peanut processing, the ZY-150 model features a dual-stage cold-press mechanism (125mm + 80mm screws) that preserves heat-sensitive nutrients like vitamin E, boosting yield to 48%.
Key data highlights:
- The 6YZ-260 hydraulic press processes 10kg of sesame in 25 minutes.
- The 6YL-125 automatic model handles 300kg/h of rapeseed.
- Semi-automatic machines (40-60kg/h) support diesel power, ideal for off-grid operations.
Working principles & material compatibility
Hydraulic presses use 1,600–3,000kN piston pressure and 70–100°C preheating for low-temperature extraction, ideal for nuts with >40% oil content (e.g., almonds, sesame). Automatic screw presses employ progressive spiral compression with triple filtration, reducing residual oil in rapeseed cakes to <6%.
The peanut-specific ZY-150 model combines coarse (125mm screw) and fine (80mm screw) pressing stages. Tests show optimal performance at 5–8% moisture content and 110°C, processing 200kg peanuts in 45 minutes.
Application scenarios & selection guide
- Startups: opt for the 6YL-80 automatic press with 80–120kg/h capacity, paired with a centrifugal filter for a compact production line.
- Large factories: combine the 6YL-125 (bulk processing) and 6YZ-320 (premium sesame oil) to achieve 8+ tons/day throughput.
- Case study: an Angolan client using the ZY-150 for soybeans achieved 5 tons/day by adjusting screw clearance to 0.8mm and maintaining 95°C preheating, cutting energy costs to 0.12kWh/kg.
Key considerations for buyers
When investing in a commercial oil press machine, prioritize material testing (oil yield, cake residue, temperature stability) which reduce maintenance costs by 30%. Always verify certifications (CE, ISO) and after-sales support for long-term ROI.
For tailored solutions or quotes, contact us to explore how our commercial oil press machines can optimize your production line!