Size the Right Press for Your Daily Volume
Enter how much raw material you need to process per day — get the required hourly capacity (with a practical buffer) and the machine class to look at. We recommend classes, not model numbers: exact capacity always depends on your seed.
⚙️ Press Capacity & Machine Sizing
How to read the recommendation
We add a 20% buffer on top of the raw division — presses need warm-up, cleaning and feed-rate variation, and running a press at 100% rated capacity all day shortens worm life. Capacity ratings also differ by seed: the same press does fewer kg/h on sesame than on peanut.
| Required kg/h (with buffer) | Machine class to look at |
|---|---|
| under 30 kg/h | Small cold press class — shops, farm use, premium cold oil |
| 30 – 100 kg/h | Single screw press class — small commercial mills |
| 100 – 300 kg/h | Multi-stage / bar-cage class — full-time oil mills |
| over 300 kg/h | Production line (multiple presses + prep equipment) |
Also estimate your output with the yield calculator and profitability with the ROI calculator.
A worked example
Suppose you need to process 500 kg of seed per day over an 8-hour shift. That is about 62–63 kg/hour, so you would look for a press rated at or a little above that on your specific seed — not at its headline maximum, which is usually quoted for an easy, dry seed. Rated capacity falls with harder or wetter seed and with a tighter setting for lower residual oil, so sizing a press right at your required rate leaves no margin. As a rule, choose a press comfortably above your target so real-world conditions do not leave you short.
What changes real capacity
A press rarely hits its datasheet number in daily use. Real throughput depends on the seed (oil content, hardness), its moisture (too wet or too dry both hurt), the choke setting (pushing for lower residual oil slows the press), and wear on the worm and cage over time. That is why this tool sizes to a target rate rather than promising a fixed output, and why the honest move is to confirm capacity with the maker on your seed and settings before buying.
Frequently Asked Questions
How do you calculate the capacity of an oil press?
Work back from your daily target: divide the seed you must process by the working hours to get the required kg/hour, then choose a press rated comfortably above that on your seed. Rated capacity falls with harder, wetter seed and tighter settings.
Why add a 20% buffer?
Presses warm up, get cleaned, and feed rate varies with seed flow. Running at 100% rated capacity all day also wears the pressing worm faster. Sizing with headroom keeps daily targets realistic.
Does capacity depend on the seed?
Yes, significantly. The same press can rate 100 kg/h on peanut but noticeably less on small oily seeds like sesame. Always confirm capacity for your specific seed.
Should I buy one big press or two smaller ones?
Two units give redundancy — one press down doesn't stop the mill — and let you run half-capacity in low season. One big unit costs less per kg/h. It depends on your downtime tolerance.
What else do I need besides the press?
Seed cleaning, a roaster (for hot pressing), filtration, and possibly refining — see the full line on our products page or ask for a layout suggestion.