Flaxseed quote guide: cold-chain spec before press tonnage

Flaxseed equipment quote moves fast when six fields are filled: 1) seed lot data (harvest date, oil 35-45%, FFA, peroxide at intake), 2) press temperature limit (≤40°C premium / ≤50°C mainstream), 3) press class + cadence (200-355 ton × 1-2 days/week aligned to sales velocity), 4) post-press chain (1-5 μm bag filter + N₂ jacketed tank ≤15°C + ≤14-day hold), 5) packaging (100-250 ml dark glass + N₂ flush + cap torque 8-12 lb-in), 6) cake plan (feed / lignan nutraceutical) + compliance (organic, non-GMO, FDA, EFSA).

Six required fields

What turns an inquiry into a fast flaxseed proposal

  • Seed lot: harvest date, storage history (≤15°C cool/dark?), oil 35-45%, FFA, peroxide. Old or warm-stored seed disqualifies premium positioning.
  • Press temperature limit: ≤40°C (premium retail, peroxide <3 at bottling) or ≤50°C (mainstream cold-pressed, peroxide <5).
  • Press class + cadence: 200 ton (<500 kg/month) or 355 ton (500-3000 kg/month), pressing 1-2 days/week aligned to sales.
  • Post-press chain: 1-5 μm bag filter (N₂-purged), 200-1000 L jacketed tank ≤15°C + N₂ blanket O₂ <2%, ≤14-day hold.
  • Packaging: 100-250 ml dark amber/violet glass, inline N₂ flush, cap torque 8-12 lb-in, refrigerated logistics for premium.
  • Compliance + cake: organic / non-GMO / FDA / EFSA + cake plan (feed / SDG nutraceutical extraction).

Site data

Attachments that prevent rework

  • Workshop drawing: m² × ceiling, drainage, fire exits. Cold-storage room location for tank and finished bottles.
  • Utility readings: 380V/50Hz available kW (40-80 kW for 200-355 ton press), water (jacket cooling), N₂ supply (cylinder bank or generator).
  • Existing equipment: press, filter housing, storage tank, bottling line — capacity, age, condition.
  • Seed COA: oil content, moisture, FFA, peroxide, lignan, harvest date, lot number.
  • Brand positioning: premium nutritional retail, ingredient supply, contract pressing — drives temp spec and cold-chain investment.

Project boundary

What to confirm before scoping Flaxseed Quote Guide | Seed Lot, ≤40-50°C Spec, N₂ Storage, Dark Glass, Cold Chain

Flaxseed Quote Guide | Seed Lot, ≤40-50°C Spec, N₂ Storage, Dark Glass, Cold Chain 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 Flaxseed Oil Press modules stay. Factory cold-press page lists this oilseed — prioritize 355–500 (370–630 ton), pure press ~2 h/barrel.

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.
  • Factory cold-press page lists this oilseed — prioritize 355–500 (370–630 ton), pure press ~2 h/barrel.
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

Equipment check

project scope 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.

Front-end input

Record feed form, daily volume, moisture, and sorting needs so pretreatment is not left to operators.

N₂, light protection, short shelf life

ALA oxidizes fast: closed filtration, N₂ tanks (O₂ <2%), dark glass 100–250 ml, plan batches for ~3–6 months refrigerated shelf life.

Delivery data

Prepare space, power (often 380V/50Hz/3ph), labor, target package, local rules, and acceptance method before quotation.

Prepare pre-pricing data →

Questions on this page

What is the minimum data set for a same-week flaxseed quote?

Six fields: 1) seed lot data + harvest date, 2) press temperature limit (≤40 or ≤50°C), 3) press class + monthly cadence, 4) cold-chain spec (filter + tank ≤15°C + N₂ + ≤14-day hold), 5) packaging spec (dark glass + N₂ + cold logistics?), 6) compliance + cake plan. With these, a layout proposal returns within 3-5 working days.

Can flaxseed be pressed without N₂ and refrigeration?

Yes, but shelf life drops from 6-12 months to 1-3 months — peroxide rises above 20 meq O₂/kg within 90 days at 25°C with O₂ exposure. Acceptable for ingredient supply with fast-turnover B2B sales. Not acceptable for premium retail brands; consumers reject rancid flaxseed oil immediately. Cold chain (N₂ + ≤15°C + dark glass) is non-negotiable for retail.

Related guides

Keep planning your flaxseed project

Talk through your flaxseed line scope

Send feed condition, target output, post-press destination, and site constraints — we reply with a workable scope.

Shandong Shengshi Hecheng Machinery Co., Ltd.
No. 5888, Yineng Street, Development Zone, Qingzhou, 262500, Weifang, Shandong, China
+86 199 0636 5856
gavin@hydraulic-oil-press.com