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Open pageHow to Choose a Hydraulic Oil Press Model: 300, 325, 355, and 500 Series
Published: March 15, 2026Category: Technical Knowledge
Many buyers ask for the largest tonnage they can afford, but hydraulic oil press selection should start from raw material, process, and real daily output. A model that fits the project usually performs better than a machine that only looks bigger on paper.
Do not judge by model number alone
Check batch size, cycle time, hot or cold press, raw material hardness, and planned working hours. These factors decide whether a model is actually suitable.
Quick guidance by series
300 and 325 series are positioned primarily for hot pressing after cleaning, crushing, and roasting or heated conditioning. Do not select them as the default cold-press route.
355, 400, 426, 480, and 500 series are the direct hydraulic cold-press range: clean the material, use low-temperature drying only when necessary, crush it, and press it directly without default high-temperature conditioning between crushing and pressing.
Within the 355-500 range, compare barrel configuration, actual load, complete cycle, material behavior, and required product quality rather than assuming a result from model number alone.
Questions to answer before buying
Which oilseed will be your main product? Is the project retail or bulk? How many batches per day are required? Will the line be expanded later?
Do not forget supporting equipment
Pretreatment, filtration, filling, spare parts, and operator training affect results just as much as the press model.
Quote, purchase, and FAT/SAT boundaries
Before issuing a purchase order, define the raw material, process route, barrel, utilities, exclusions, buyer responsibilities, trial method, and acceptance criteria in the quotation and contract. FAT confirms the agreed factory configuration and witnessed protocol; it does not prove site output under different material or utilities. SAT is separate and starts only after the buyer provides the agreed site, utilities, operators, and representative material. No capacity, oil recovery, service, or commissioning result is fixed unless it is expressly written and verified under the agreed conditions.
Conclusion
The best hydraulic oil press model is the one that matches your material, process, and sales plan together. Good selection reduces both cost and future adjustment work.