Peanut · 325 hot / 355–500 cold · yield 45–55%

Pick the press frame for the route — the hydraulics are the same across the range

Every peanut press from model 300 to 500 shares one 60 MPa system and a 2.2 kW motor. What changes is frame strength and pressure stability. So the model follows the route and barrel rhythm, and the line is built of matching modules around it.

How a peanut hydraulic oil press fits a working line: model ladder 300/325 hot vs 355-500 cold, same 60 MPa / 2.2 kW hydraulics, plus shelling, roasting, filtration, storage, and cake modules.

Hot-route workflow with real hard data

Roast 160-180°C → moisture to 3-5% → 300-325 ton hydraulic press at 80-100°C → 100 kg/barrel, 30-40 min → plate-frame filter 200-300 mesh → crude oil clarity target: sediment ≤0.1%, moisture ≤0.2%.

Press family matched to route temperature

Hot peanut lines: 300-325 ton, 80-100°C, higher throughput. Cold premium: 355-500 ton, ≤60°C, lower yield but premium positioning. Do not use cold-press claims for hot-route oil.

Batch references with real numbers

Standard barrel 390 mm × 800 mm loads ~100 kg. Model 325 uses 14 partitions. Hot cycle: 30-40 min/barrel. Cold cycle: 60-90 min/barrel. Residual oil hot 6-8%, cold 8-10%.

Aflatoxin control and food safety

Aflatoxin B1 limit <20 μg/kg (EU) / <20 ppb (US). Damaged/moldy kernels must be removed by color sorter or manual picking. Test every batch. One contaminated batch can destroy an entire export shipment.

Model ladder

Which press frame fits which peanut route

300 / 325 — hot route

Matched to roasted hot pressing at 80-100°C. Faster 30-40 min cycle per 100 kg barrel, oil yield 40-48%, residual oil 6-8%. Highest throughput per hour — the workhorse for bulk edible peanut oil.

355 / 400 / 426 — cold route

For lower-temperature ≤60°C pressing where frame stiffness absorbs higher mechanical stress over a 60-90 min cycle. Oil yield 35-42%, residual oil 8-10%. Suits premium and cleaner-kernel projects.

480 / 500 — heavy cold / scale-up

The stiffest frames for sustained cold pressing or multi-press scale-up. Same 60 MPa hydraulics; the larger frame holds pressure steady and stays true over years of high-stress cold cycles.

What stays constant

The hydraulic facts that are the same on every model

60 MPa
System pressure
Same across 300-500; frame strength differs, not the hydraulics.
2.2 kW
Pump motor
Same drive; relief valves are mechanical, not solenoid.
390×800
Standard barrel (mm)
~100 kg load; model 325 uses 14 partition plates.
200-300
Filtration mesh
Plate-frame filter right after pressing for clear crude oil.

Supporting modules

The modules that turn a press into a peanut line

Line rhythm

Roasting into hydraulic pressing on a peanut line

The handoff from roaster to press is where real hourly output is won or lost.

  • Shelling and cleaning: removes shell (30-40% of pod), stones, and damaged kernels before the press — sized to match press throughput.
  • Roasting: flat-bottom woks or drum roasters at 160-180°C for the hot route; the roaster, not the press, often sets hourly rhythm.
  • Filtration and settling: 200-300 mesh plate-frame filter plus settling tanks keep crude oil clear and sediment ≤0.1%.
  • Storage and cake: crude-oil tanks plus a cake route (protein 45-50%) for feed, food-grade flour, or re-pressing.

A line runs at the speed of its slowest stage. Matching shelling, roasting, filtration, and cake handling to the press is what actually protects throughput and yield.

Project boundary

What to confirm before scoping Peanut Hydraulic Oil Press Line: Model Ladder 300-500 and Supporting Modules

Peanut Hydraulic Oil Press Line: Model Ladder 300-500 and Supporting Modules 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 Hydraulic Oil Press Line: Model Ladder 300-500 and Supporting Modules, 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).

60 MPa
System pressure
High-low dual pump, ~60 MPa continuous
2.2 kW
Motor power
380V / 50Hz / 3 phase
300/325
Hot series
Pure press 30–40 min/barrel · ~1.5 h for 2 barrels
355–500
Cold series
370–630 ton · pure press ~2 h/barrel · ~4.5 h for 2 barrels
  • 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 Hydraulic Oil Press Line: Model Ladder 300-500 and Supporting Modules 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

They share the same 60 MPa hydraulic system and 2.2 kW motor. The difference is frame strength and pressure stability: 300/325 suit the faster hot cycle (30-40 min, 80-100°C), while 355-500 absorb the higher mechanical stress of the cold cycle (60-90 min, ≤60°C) without deforming over time.

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