How a hydraulic oil press works step by step: how it builds 60 MPa pressure, the role of the ram, barrel, carbon-steel separator plates, mechanical relief valve and two gauges, and why it suits cold-pressed premium oils.
When a press that used to run well starts giving less oil, the cause is almost always one of a handful of things. Here is the checklist, in the order worth checking, from free fixes to the few that need a part.
Filtering and refining are not the same thing, and most shops do not need both. Here is what each step removes, the four classic refining stages, and how to decide whether crude, filtered or refined oil fits the market you sell into.
A dual-barrel press is not a bigger machine — it is the same press with a second barrel on a sliding track, so one barrel loads while the other presses. Here is when that doubles your real output and when a single barrel is the smarter spend.
The frame and cylinder last for years; a few small parts wear on a predictable schedule. Here is the wear-parts list, a maintenance calendar, and what to keep on the shelf so a worn seal never costs you a production day.
Pressed oil isn't clean on its own. A buyer's guide to oil filtration — why you have to filter, plate-and-frame vs settling vs polishing filters, the 60–70°C rule, and how to match filtration to whether you sell fresh in-store or bottle a brand.
MPa, tonnage and cake surface pressure all appear on the spec sheet — but only one really separates one oil press from another. A buyer's guide to reading the numbers and not overpaying for the wrong machine.
Small, automatic hydraulic presses for sesame oil shops and Korean-style fresh-oil retail. Compare the KHOP-10KG, 15KG and 20KG — capacity, power and footprint — and find which fits your shop.
The 300 and 325 are our hot-press workhorses: 300/325 tons, a 60 MPa system pressure and a 2.2 kW motor. Here is what they press, how they differ, how fast they run and who should choose them.
Five cold-press models, 355 to 500, span 370–630 tons. They share one barrel and 60 MPa system pressure; what changes is pressing force.