The variety chooses the route; work the line out from there

Decide first

Match variety to route to machine — the quick read

Step by step

How to choose the route in four questions

1. Step 1

   1 · Identify the variety

   High-oleic (>80% oleic) or regular linoleic (~65% linoleic)? The variety is the first filter: high-oleic justifies a cold press and a premium claim; regular linoleic is a commodity oil that runs faster hot.

2. Step 2

   2 · Name the oil color and taste promise

   Cold pressing protects a pale color and clean taste — but only if the feed is clean kernels with low residual hull. Hot conditioning (100-110°C) improves oil flow and shift output but produces deeper color that usually goes to refining.

3. Step 3

   3 · Calculate shift output from real cycles

   Hot cycle is 30-40 min/barrel; cold cycle is ~2 h/barrel — both at 100 kg/barrel. A cold line produces far less oil per shift than a hot line of the same barrel count, so plan output from these cycles, not a brochure throughput claim.

4. Step 4

   4 · Plan the post-press finish

   Both routes carry 600-1200 ppm wax, so any clear bottle needs winterization (5-8°C, 24-48 h). Cold-pressed premium usually stops at dewax + polish-filter; hot-pressed commodity usually adds full refining before bottling.

Key parameters

Route numbers that decide output and price

Avoid rework

Route mistakes that cost yield, price, or brand

• Sizing a cold line on a hot-line throughput figure: a ~2 h/barrel cold cycle produces a fraction of a 30-40 min hot cycle's shift output — the plant ends up short of capacity.
• Calling hot-pressed oil cold-pressed: hot conditioning at 100-110°C produces a fragrant, practical oil, but it is not cold-pressed — mislabeling risks brand and compliance problems.
• Mixing high-oleic and regular linoleic without changeover: the >80% oleic premium oil loses its identity and shelf-life claim when blended with ~65% linoleic commodity oil.
• Forgetting that both routes still need dewaxing: 600-1200 ppm wax clouds any clear bottle regardless of hot or cold pressing.

The route is a commercial decision driven by variety and market, not a knob on the press. Decide it first, then everything else sizes correctly.

Why it matters

Why route selection outranks press tonnage for sunflower

For many oilseeds the route is a minor preference, but for sunflower it is the decision that defines the whole business. The reason is that sunflower comes in two genuinely different products. High-oleic sunflower carries more than 80% oleic acid and a 12-18 month shelf life, which makes it a premium frying and salad oil that buyers pay extra for — and that premium only holds if the oil is pale, clean-tasting, and cold-pressed. A cold press on the 355-500 series, crushing at ambient temperature and running about 2 hours per 100 kg barrel, protects exactly those qualities. Regular linoleic sunflower, at roughly 65% linoleic acid, is a commodity cooking oil where the buyer wants volume and price; flavor is secondary; conditioning at 100-110°C and hot-pressing on the 300/325 series at 30-40 minutes per barrel gives far more oil per shift. That cycle-time gap — roughly 2 hours versus 35 minutes for the same barrel — is why you cannot size a cold line on hot-line numbers, and why a plant that picks the wrong route either starves its premium brand of quality or starves its commodity line of capacity. Both routes still carry 600-1200 ppm wax, so both still need winterization for any clear bottle; the route does not remove the dewaxing step, it only changes the color, taste, and throughput around it. Choose the variety and the market first, let those choose hot or cold, and only then compare press tonnage.

Route proof

Cold or hot pressing should be chosen from the selling promise

• Choose cold pressing when the buyer can recover slower output through lighter oil, high-oleic identity, or premium bottle price.
• Choose hot pressing when stable shift output, standard cooking oil, crude bulk sale, or refinery handoff matters more.
• If both products are planned, separate tanks, filter settings, batch records, and changeover cleaning should be included.

Route evidence

Route selection should compare product value against operating speed

• Cold pressing can support light color and premium labels, but it should be justified by seed quality, bottle price, and buyer channel.
• Hot pressing can support stable shift output and standard oil, but it may require stronger filtration, dewaxing, or refining for retail products.
• For a dual route, the quote should include tank separation, filter changeover, operator records, and how cake from each route is handled.

Project boundary

What to confirm before scoping Sunflower Cold Press vs Hot Press Route Selection

Sunflower Cold Press vs Hot Press Route Selection 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 Sunflower 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

Pin models to published factory specs before tonnage talk.

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

Route needs to land in equipment interfaces

Once the route 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.