Premium High-Oleic Cooking Oil
Peanut oil (groundnut oil) is one of the world's most valued edible oils, prized for its high smoke point, neutral flavor, and high oleic acid content. With global annual production exceeding 6 million metric tons, peanut oil processing serves both premium cooking oil and industrial markets.
Huatai's peanut oil production lines deliver complete EPC solutions covering every stage — from raw peanut cleaning and dehulling, through pre-pressing and solvent extraction, to fully refined peanut oil. Because peanuts contain 45-55% oil, pre-pressing before extraction is essential for optimal efficiency.
We offer flexible capacities from 20 TPD for small-scale processors to 1,000 TPD for large industrial operations. Each line is custom-engineered based on your peanut variety, target oil quality, and site conditions.
Peanut Oil Production Steps
From raw peanut oil to refined oil — a fully integrated process.
1. Cleaning
Raw peanuts pass through magnetic separators, vibrating screens, and destoners to remove foreign materials including stems, shells, stones, dust, and metal fragments.
2. Dehulling
Peanuts are dehulled using a combination of cracking mills and aspirators to separate hulls from kernels. Hull removal improves oil quality and reduces wear on downstream equipment.
3. Cracking & Flaking
Dehulled peanut kernels are cracked into 4-6 pieces and flaked to 0.30-0.40 mm thickness using smooth-roll flaking mills to rupture oil cells and maximize extraction efficiency.
4. Conditioning
Flakes are conditioned with steam in a vertical cooker to adjust moisture and temperature (typically 90-110°C), improving oil fluidity and reducing viscosity for pressing.
5. Pre-pressing
Conditioned flakes are pre-pressed in a continuous screw press to remove 60-70% of the oil. The resulting press cake with 12-18% residual oil proceeds to solvent extraction.
6. Solvent Extraction
Pre-pressed cake is extracted with hexane in a continuous chain or loop extractor using counter-current percolation, reducing residual oil in meal below 1.0%.
7. Miscella Evaporation
Miscella (oil-solvent mixture) is evaporated in two stages and stripped under negative pressure to recover solvent and produce crude peanut oil.
8. Refining
Crude peanut oil is refined through degumming, neutralization, bleaching, and deodorization to produce clear, stable, fully refined peanut oil with free fatty acid below 0.1%.
9. Winterization (Optional)
For premium cold-chain applications, peanut oil is winterized to remove waxes and high-melting triglycerides, ensuring clarity at low temperatures.
Key Equipment Systems
Each system is designed and manufactured in-house under ISO 9001 quality management.
Pretreatment System
Magnetic separator, vibrating screen, destoner, dehuller with aspirator, cracking mill, flaking mill, and vertical conditioning cooker. Designed for continuous operation with automatic moisture and temperature control.
Pre-pressing & Extraction
Continuous screw pre-press with hardened worm shaft and cage bars, followed by chain-type or loop-type extractor with counter-current hexane percolation, DTDC, and miscella evaporation system.
D.T.D.C. System
Multi-stage desolventizer-toaster-dryer-cooler for peanut meal processing. Removes residual solvent, toasts meal to denature anti-nutritional factors, and controls final moisture for optimal feed quality.
Evaporation System
Negative pressure multi-stage evaporation with first evaporator (rising film) and second evaporator (falling film) followed by disc-and-donut stripping column. Saves up to 30% steam versus conventional designs.
Refining & Winterization
Complete continuous refining line with degumming, neutralization, vacuum bleaching, and deodorization. Optional winterization section for cold-stable premium peanut oil.
Technical Highlights
Engineering innovations that deliver superior performance and lower operating costs.
High-Oil Pre-Pressing Technology
Our pre-press achieves 60-70% oil removal from peanuts before extraction, reducing hexane consumption by 50% and steam usage by 35% compared to direct extraction of high-oil seeds.
Continuous Refining with PLC Control
Fully automated continuous refining line with PLC-based process control. Real-time monitoring of temperature, pressure, flow rates, and oil quality parameters ensures consistent product quality.
Premium Cold-Stable Oil Production
Optional winterization system removes waxes and high-melting triglycerides, producing crystal-clear peanut oil that remains stable at refrigeration temperatures for premium retail markets.
China's Leading Grain & Oil Machinery Manufacturer
Henan Huatai Intelligent Equipment Group was founded in 1988 and has grown into one of China's major grain and oil machinery manufacturing enterprises. We integrate research and development, engineering design, equipment manufacturing, on-site installation and commissioning under one roof.
Our 100,000㎡ manufacturing campus in Hua County, Henan Province houses modern production lines with CNC machining centers, automated welding systems and comprehensive quality testing laboratories. As an ISO 9001 certified manufacturer, every piece of equipment undergoes rigorous inspection and factory acceptance testing before shipment.
We specialize in complete EPC turn-key projects covering the full spectrum of edible oil processing — from oilseed pretreatment and solvent extraction through to refining, fractionation and by-product utilization.
38+
Years of Experience
100,000 m²
Modern Factory
70+
Countries Served
22
Global Offices
Get Your Customized Peanut Oil Plant Solution
Tell us your target capacity and target product specifications. Our engineers will prepare a tailored proposal within 48 hours.