This equipment is designed for a range of oil-bearing materials including sunflower seeds, sesame seeds, and palm (typically palm kernel). Different models can also handle other oilseeds and nuts such as rapeseed, soybean, and peanuts—check model specifications for exact compatibility.
Yes — the machine operates as a cold press, meaning it extracts oil with minimal external heating. Built-in temperature control and monitoring help keep outlet temperatures within the cold‑pressed range (commonly below about 60–65°C) to preserve flavor and nutrition.
Oil yield varies by seed type, pre-treatment and machine model. Typical cold-press extraction rates range roughly: sunflower 30–45% (of seed weight), sesame 35–50%, and palm kernel depending on kernel quality. Final yields depend on seed moisture, grind size and number of press passes.
Capacities depend on the model and are available for small lab-scale to industrial lines. Typical ranges: small units 1–50 kg/h, medium 50–300 kg/h, and larger industrial systems 300–1000+ kg/h. Contact the supplier for exact model capacities.
Some pre-treatment is recommended for best results: cleaning to remove stones and impurities, adjusting moisture content (generally around 6–8% for many oilseeds), and optionally dehulling or coarse crushing. Palm (FFB) requires different pre-treatment; palm kernels should be separated and dried.
Cold presses are usually used for palm kernel oil rather than crude palm oil from fresh fruit bunches. Processing FFB typically requires specialized sterilization, threshing and a screw press/expeller designed for palm mill scale. Confirm with the manufacturer if your intended palm feedstock is FFB or palm kernel.
Food-contact parts are typically made of stainless steel (SS304 or SS316 depending on model and customer requirements) to ensure hygienic operation and corrosion resistance.
Cold-pressed oil often contains fine solids and water. Typical clarification methods include settling tanks (sedimentation for 24–48 hours), simple cloth or mesh filters, and plate/leaf or vacuum filtration for finer clarification. Some suppliers offer integrated filtration modules.
Power consumption depends on machine size and capacity. Small units may use a few hundred watts to a few kilowatts; medium/industrial machines typically require several kW to tens of kW. Exact electrical, air and water requirements are model-specific and provided in the technical datasheet.
Residual oil in the pressed cake depends on seed type and press efficiency. Cold-pressed cake typically still contains some oil (often 6–15% for many seeds). If very low residual oil is required, a follow-up solvent extraction or additional pressing stages may be used.
Regular maintenance includes cleaning oil-contact surfaces after use, removing residues from the press chamber, routine lubrication of bearings and gears, and inspection/replacement of wear parts (screws, rings, gaskets). Follow the supplier's maintenance schedule to ensure long life and safe operation.
Yes. Typical safety features include emergency stop buttons, safety guards over moving parts, overload protection on motors, and electrical protections. Operators should follow safety guidelines and wear appropriate PPE.
Most manufacturers/suppliers offer installation assistance, operator training, operation manuals, and after-sales service including spare parts supply. Service terms vary—confirm warranty period and support options when ordering.
Yes. Manufacturers commonly offer different models and customization (capacity, materials, automation level, integrated filtration or heating units). For large-scale production, modular or turnkey processing lines can be provided.
Many suppliers can provide certifications such as CE, ISO and food-safety related documentation upon request. Sample processing is often available—send a representative seed sample to the supplier so they can run a test and provide oil yield and quality data.
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