Retail / shop batch
One compact hydraulic press, visible oil quality, sells on freshness. Lowest capex.
Chile market
Chile exports walnuts and grows premium oil brands for domestic and export gourmet channels. Batch hydraulic fits export-facing small brands. 1–2 × 355–500 + polish filter + N₂ + dark glass. Document kernel grade halves vs pieces for price tiers.
Decide first
One compact hydraulic press, visible oil quality, sells on freshness. Lowest capex.
Clean/prep + 300/325 or 355–500 + filtration + optional fill. Fits retail bottles and export packs.
Screw/expeller when daily tons dominate over flavor and cold-press claims.
Quote pack
Project boundary
Hydraulic Walnut Oil Press in Chile 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 Walnut 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.
Factory model check
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).
Equipment check
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.
Record feed form, daily volume, moisture, and sorting needs so pretreatment is not left to operators.
High polyunsaturates: filter quickly, N₂ tanks, dark glass; shelf life often 6–12 months refrigerated.
Prepare space, power (often 380V/50Hz/3ph), labor, target package, local rules, and acceptance method before quotation.
1–2 × 355–500 + polish filter + N₂ + dark glass. Document kernel grade halves vs pieces for price tiers.
Related guides
Compare hydraulic batch press vs continuous screw (expeller) for walnut: oil quality, cold-press ability, capacity, residual oil, labor, and when each route wins. Use this before you request a quote.
Size walnut hydraulic capacity with real cycles: hot pure press 30-40 min/barrel (~1.5 h for 2 barrels with loading); cold ~2 h pure / ~4.5 h for 2 barrels. Example math for 1–5 t/day small mills.
RFQ checklist for walnut hydraulic oil press projects: seed form, kg/shift, hot/cold, filtration, cake path, power, country, and photos. Incomplete inquiries get catalog replies — complete packs get model counts and line scope.
2026 factory price bands for walnut hydraulic presses: hot 300/325 about US$2000-5000, cold 355 about US$4000-7000, large cold 400–500 about US$8000-15000+. What drives the quote and how to compare offers.
Include Walnut, kg/shift, hot/cold, and city in Chile.