Rich Source of Omega-3 ALA
Linseed oil (flaxseed oil) is a highly nutritional oil valued for its exceptional alpha-linolenic acid (ALA) content of 50-60%, the highest among vegetable oils. Global annual production exceeds 700,000 metric tons, serving both food and industrial (linseed oil, paints) markets.
Huatai's linseed oil production lines deliver complete EPC solutions covering every stage — from seed cleaning and flaking, through pre-pressing and solvent extraction, to refining. Because linseed contains 35-45% oil with high viscosity, careful temperature management is essential to preserve omega-3 content.
We offer flexible capacities from 10 TPD to 500 TPD. Each line is custom-engineered based on your target application (food-grade omega-3 oil or industrial drying oil), target ALA retention, and processing temperature profile.
Linseed Oil Production Steps
From raw linseed oil to refined oil — a fully integrated process.
1. Cleaning
Raw linseed passes through magnetic separators, vibrating screens, and destoners to remove foreign materials — stems, dust, stones, and metal fragments.
2. Conditioning
Linseed is conditioned with steam to 50-60°C in a vertical conditioner, adjusting moisture for optimal flaking. Low temperature preserves omega-3 ALA content.
3. Flaking
Conditioned linseed is flaked to 0.30-0.35 mm thickness using smooth-roll flaking mills to rupture oil cells for efficient extraction.
4. Cooking
Flakes are gently cooked in a multi-stage vertical cooker to 70-90°C, adjusting moisture to 4-5%. Controlled low temperature preserves heat-sensitive omega-3 fatty acids.
5. Pre-Pressing
Cooked flakes are pre-pressed in a continuous screw press to remove 55-65% of the oil, producing press cake for 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 is evaporated in two stages and stripped under negative pressure to recover solvent and produce crude linseed oil.
8. Refining (Optional)
For food-grade linseed oil, gentle refining through cold degumming, mild bleaching, and low-temperature deodorization preserves omega-3 ALA content. Industrial-grade oil may skip refining.
9. Packaging
Refined linseed oil is packaged under nitrogen to prevent oxidation. Food-grade oil is packaged in dark bottles with nitrogen flush to preserve omega-3 content.
Key Equipment Systems
Each system is designed and manufactured in-house under ISO 9001 quality management.
Pretreatment System
Magnetic separator, vibrating screen, destoner, vertical conditioner with low-temperature steam, flaking mill, and multi-stage vertical cooker for gentle processing.
Pre-pressing & Extraction
Continuous screw pre-press with controlled temperature, followed by chain-type or loop-type extractor with counter-current hexane percolation, DTDC, and miscella evaporation.
D.T.D.C. System
Multi-stage desolventizer-toaster-dryer-cooler for linseed meal processing, producing 32-38% protein meal for premium animal feed.
Gentle Refining
Cold degumming, mild bleaching with low-temperature activated earth, and low-temperature deodorization preserve omega-3 ALA content for food-grade linseed oil.
Nitrogen Packaging
Nitrogen-flush packaging system with dark bottles prevents oxidation of omega-3 fatty acids, extending shelf life of food-grade linseed oil.
Technical Highlights
Engineering innovations that deliver superior performance and lower operating costs.
Omega-3 Preservation Technology
Our low-temperature cooking (70-90°C) and gentle refining process preserves 95%+ of natural ALA content, producing premium omega-3-rich linseed oil for food and nutraceutical markets.
Dual Food & Industrial Output
Same plant can produce food-grade refined linseed oil (omega-3 supplements) or industrial-grade raw linseed oil (paints, varnishes, linoleum) with adjustable processing parameters.
Nitrogen Protection System
Integrated nitrogen-flush processing and packaging prevents omega-3 oxidation throughout production, extending shelf life of food-grade linseed oil to 18+ months.
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 Linseed Oil Plant Solution
Tell us your target application (food-grade or industrial) and target capacity. Our engineers will prepare a tailored proposal within 48 hours.