Peanut oil press FAQ: route, yield, aflatoxin, and quote data
Peanut hard data: kernel oil 44-56%, moisture 5-8%, shell 30-40%. Hot route 160-180°C roast + 80-100°C press → yield 40-48%. Cold route ≤60°C → yield 35-42%. Aflatoxin B1 <20 μg/kg (EU) / <20 ppb (US FDA). Cake protein 45-50%.
Peanut press FAQ with hard data: kernel oil 44-56%, hot roast 160-180°C, cold ≤60°C, yield 40-48% hot / 35-42% cold, residual oil 6-10%, aflatoxin B1 <20 μg/kg, 100 kg/barrel, 200-300 mesh filter.
Feed and preparation
Pods (shell 30-40%) or shelled kernels? Moisture 5-8%? Damaged/moldy kernels removed (aflatoxin risk)? 1000-kernel weight 400-700 g.
Route data
Hot: roast 160-180°C → press 80-100°C → 300-325 ton → yield 40-48%. Cold: ≤60°C → 355-500 ton → yield 35-42%, premium positioning.
Scope boundary
Press-only or full line? Shelling, roasting, 200-300 mesh filtration, settling tank, cake pulverizer (cake 45-50% protein), nitrogen-flushed bottling.
Core decisions
Three decisions that drive every peanut quote
Peanut hydraulic pressing process clip
Use this clip to understand hot pressing, barrel loading, hydraulic pressing, and oil discharge rhythm.
Post-press handoffConfirm crude oil and cake routing together
Filtration, storage, and cake collection after pressing directly affect layout and quotation scope.
Pods vs kernels
Pods need a shelling stage (drum sheller + grading screen, target shell residue <2%). Shelled kernels skip that stage. Mixing them on one line without grading destabilizes the press.
Hot vs cold route
Hot route: roast 160-180°C, press at 80-100°C, yield 40-48%, smoke point 230°C refined. Cold route: ≤60°C end-to-end, yield 35-42%, FFA <0.5%, smoke point 160°C unrefined.
Press class by route
Hot peanut: 300-325 ton, 14 partitions, 100 kg/barrel (390 × 800 mm), 30-45 min/cycle. Cold premium: 355-500 ton, 60-90 min/cycle, residual 8-10% (vs 6-8% hot).
Hard data
Numbers a peanut inquiry should already know
- Oil yield: 40-48% hot, 35-42% cold (kernel oil content 44-56%). Residual cake oil 6-8% hot, 8-10% cold.
- Cake protein: 45-50%. Defatted meal sells as feed (poultry/aquaculture) or food-grade peanut flour.
- Aflatoxin B1 limit: <20 μg/kg (EU 1881/2006), <20 ppb (US FDA). Pre-press kernel inspection + UV sorting + lab test per batch.
- Standard barrel: 390 × 800 mm, ~100 kg kernel load. Model 325 uses 14 partitions to hold pressure across each cake during the 30-45 min cycle.
- Smoke point: 230°C refined peanut oil (high-heat frying), 160°C unrefined cold-pressed (salad/finishing).
Quote inputs
Send these to skip the first three rounds of clarification
- Feed: pods or kernels, kernel grade, moisture %, aflatoxin test result if available.
- Route: hot (160-180°C roast) or cold (≤60°C), with target yield and final smoke-point grade.
- Capacity: kg/shift or barrels/day. One model 325 = ~2 barrels per 1.5 h including load/unload.
- Existing equipment: roaster (wok / drum), settling tank, plate-frame filter — keep, replace, or extend?
- Cake plan: feed grade, food-grade flour (defatting + grinding), or local resale.
Project boundary
What to confirm before scoping Peanut Oil Press FAQ | Hot 160-180°C / Cold ≤60°C, Yield 40-48%, Aflatoxin <20 μg/kg
Peanut Oil Press FAQ | Hot 160-180°C / Cold ≤60°C, Yield 40-48%, Aflatoxin <20 μg/kg should not be quoted from an equipment name alone. Check feed lots, target oil, post-press handling, and packing rhythm in one scope before deciding which Peanut Oil Press modules stay. Listed on the factory hot-press page — discuss 300/325 first.
When feed condition, moisture, impurities, batch weight, and product position are unclear, press tonnage and filter area become guesswork. Factory systems share 60 MPa and 2.2 kW motors; hot pure press is 30–40 min/barrel and cold pure press is ~2 h/barrel — cycle time matters more than brochure tonnage.
- Confirm whether feed is whole seed, kernels, pretreated material, or an existing semi-finished stream.
- Confirm whether the target is crude oil, filtered oil, bottled oil, drum ingredient oil, or a refining handoff.
- Hot cycle reference: pure press 30-40 min/barrel, ~1.5 h for 2 barrels with loading; cold pure press ~2 h/barrel, ~4.5 h for 2 barrels.
- Confirm batch rhythm, labor, changeover, retained samples, power (often 380V/50Hz/3ph), and site install conditions.
Factory model check
Match hot / cold models to factory hard data
When discussing Peanut Oil Press FAQ | Hot 160-180°C / Cold ≤60°C, Yield 40-48%, Aflatoxin <20 μg/kg, pin models to published factory specs — not tonnage alone.
Hot 300/325: 300–325 ton, 60 MPa system, standard barrel Ø390×800 mm / max 100 kg, pure press 30–40 min/barrel, ~1.5 h for 2 barrels with loading, 2.2 kW motor. Cold 355/400/426/480/500: 370–630 ton, integrated frame, same 100 kg standard barrel, pure press ~2 h/barrel, ~4.5 h for 2 barrels with loading; optional Ø300 high-pressure barrel max 60 kg. Residual oil target ~≤5% (peanut hot often 6–8% measured).
- Standard barrel Ø390×800 mm, max ~100 kg crushed feed; optional Ø300 high-pressure barrel max ~60 kg.
- Cylinder material 27SiMn; cold frames are integrated molded steel; hot frames are typically H-type channel steel.
- Listed on the factory hot-press page — discuss 300/325 first.
Equipment check
project scope needs to land in equipment interfaces
After Peanut Oil Press FAQ | Hot 160-180°C / Cold ≤60°C, Yield 40-48%, Aflatoxin <20 μg/kg is clear, write the interfaces: how preparation feeds the press, how oil leaves the press, how filtration connects to tanks, and how packing receives finished oil.
Front-end input
Record feed form, daily volume, moisture, and sorting needs so pretreatment is not left to operators.
Filtration, tanks, and peanut cake
Define pneumatic/plate-frame filtration, tanks, retained samples, and cake offtake before press count. Factory hot lines often use multi-layer paper filters.
Delivery data
Prepare space, power (often 380V/50Hz/3ph), labor, target package, local rules, and acceptance method before quotation.
Questions to confirm next
Clear these up first
Hot route: roast 160-180°C × 20-30 min, press at 80-100°C, yield 40-48%, smoke point 230°C refined → mainstream edible oil. Cold route: ≤60°C, yield 35-42%, FFA <0.5%, smoke point 160°C → premium bottled oil. Choose by product, not by marketing language.
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