Xinjiang, Yunnan and other Chinese walnut regions supply gift-box oils and farm brands. Shell cracking quality and oxidation control dominate project risk. 355–500 cold only for premium positioning. Plan impact cracker + grader before press count. Gift cartons and cold-chain dispatch optional but common.
How to choose a hydraulic walnut oil press in China: local market, business model (shop / batch mill / bulk), recommended press class, and data to send before a quote.
Xinjiang, Yunnan and other Chinese walnut regions supply gift-box oils and farm brands. Shell cracking quality and oxidation control dominate project risk.
355–500 cold only for premium positioning. Plan impact cracker + grader before press count. Gift cartons and cold-chain dispatch optional but common.
Hydraulic walnut pressing: batch identity, hot or cold route, cake value, scalable by adding presses.
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.
Hydraulic Walnut Oil Press in China: Buyer Guide for Shop, Mill, and Export 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.
When discussing Hydraulic Walnut Oil Press in China: Buyer Guide for Shop, Mill, and Export, 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).
After Hydraulic Walnut Oil Press in China: Buyer Guide for Shop, Mill, and Export 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.
355–500 cold only for premium positioning. Plan impact cracker + grader before press count. Gift cartons and cold-chain dispatch optional but common.
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