There is no list price for an industrial oil press, and the quoted figure is rarely the largest number in the decision. Connected load accumulates for every operating hour, machine weight decides how the press reaches the floor, and an incompatible electrical supply can add a cost item larger than the difference between two quotations. This guide covers what moves the price, why power supply is the specification that determines whether a machine can be installed at all, what an importer has to arrange, and what certification does and does not cover.
Industrial oil presses are quoted per enquiry, so a buyer comparing suppliers has to reconstruct the cost picture from specifications rather than from prices. Three of the figures that matter most — connected load, machine weight, and the electrical supply a press is built for — are published, and they are worth reading before any quotation arrives. Every machine figure below comes from our product pages.
What moves the price, and what accumulates after it
The quoted figure moves with the pressing method, the rated capacity, the automation level, and how much of the surrounding line the quotation covers. Those four are the ones buyers usually ask about, and sizing capacity for your own line is covered in our commercial buyer's guide rather than repeated here.
What is compared less often is what accumulates after purchase. Electricity is the most predictable of those costs, and it can be read directly off published specifications.
| Machine | Rated capacity | Connected load | kW per kg/h | Machine weight | Dimensions (W×L×H) |
|---|---|---|---|---|---|
| Twin-pod(safe type) Oil Press | Sesame 30 kg/h | 2.9 kW | ≈0.10 | 950 kg | 88×120×148 cm |
| Twin-pod(factory) Oil Press | Not published | Not published | — | Not published | 90×100×148 cm |
| Cold Press 15kg | Roasted sesame 15 kg/h | 5.6 kW | ≈0.37 | 300 kg | 97×83×140 cm |
| Cold Press 30kg | Roasted sesame 30 kg/h | 7.3 kW | ≈0.24 | 350 kg | 120×85×132 cm |
| Cold Press 100kg | Roasted sesame 100 kg/h | 9.2 kW | ≈0.09 | 480 kg | 168×104×145 cm |
Capacity, load, weight and dimensions as published on our product pages, July 2026. Weight figures are machine weight; crated weight is not published. The kW per kg/h column is arrived at by dividing published load by published capacity — it is not a manufacturer efficiency rating, and because ratings are feedstock-specific it is indicative rather than a like-for-like comparison. Where a figure is not published we have said so rather than estimating it.
The column worth pausing on is kW per kg/h, because it does not fall in a straight line with size. Within the continuous range it improves sharply as capacity rises — roughly 0.37 at 15 kg/h against roughly 0.09 at 100 kg/h — so the largest machine draws about a quarter as much electricity per kilogram processed as the smallest. The batch hydraulic press then sits at roughly 0.10, close to the largest continuous machine and well ahead of the small ones, though that particular comparison crosses two pressing methods and two feedstock ratings and should be treated as indicative. What holds firmly is the pattern inside the continuous range: electrical running cost per kilogram is not a matter of buying the biggest machine available, and the smallest continuous models are the most expensive to run on this measure.
Weight belongs in the same calculation for a different reason. The published range runs from 300 kg to 950 kg, a spread of more than three times across presses that occupy similar floor space, and it is paid for once — in lifting equipment, rigging and floor loading at the destination. For the Twin-pod(factory) press the weight is not published at all, so it has to be requested before shipping can be planned.
Power supply: the specification that decides whether installation is possible
This is the item most often discovered late, and it can determine whether a machine can be installed at all rather than how well it runs.
The presses above are built for 380V three-phase. That is the standard industrial supply in Korea, where they are manufactured, at 60 Hz — and it is the combination rather than the voltage that is unusual. Across much of Asia, 380V three-phase is common at 50 Hz, so for buyers in those markets the voltage matches and only the frequency differs. Elsewhere neither does. North American industrial facilities typically run 480V at 60 Hz. The European and wider international standard is 400V at 50 Hz, having moved from a 380V nominal designation in 2003, so some older European installations still sit at 380V while the current standard does not. Japan supplies 200V three-phase and is divided by region, 50 Hz in the east and 60 Hz in the west. Taken together, 60 Hz markets — the Americas, Korea, the Philippines and Saudi Arabia among them — account for around 30 percent of the global market, and the remaining 70 percent run at 50 Hz.
Two consequences follow, and they are not equivalent. A voltage difference can usually be handled with a transformer, which is a budgetable cost. A frequency difference is a different class of problem, because it changes the running speed of an induction motor rather than the voltage across it, and resolving it means a frequency converter, a motor specified for the destination supply, or a drive rated for it. Neither remedy appears in a machine quotation, and both are ordinarily the buyer's to arrange.
| What to confirm | Why it matters | How to confirm it |
|---|---|---|
| Voltage at your site, line-to-line | Determines whether a transformer is needed | Measure at the disconnect; do not rely on a national figure |
| Frequency, 50 Hz or 60 Hz | Changes motor speed, not only voltage | Utility supply documentation for the site |
| Phase configuration | Affects measured voltage and available load | Site electrical drawings |
| Available capacity at the panel | Connected load has to be supported alongside existing plant | Electrician's assessment against the machine's kW figure |
| Motor and drive rating as built | Some drives accept a wide input range, many do not | Request the nameplate rating from the manufacturer in writing |
| Who supplies conversion equipment | It is rarely inside a machine quotation | Confirm scope explicitly before ordering |
Nominal national figures are a starting point only. Actual site supply varies with transformer tap settings, load and local grid conditions, and should be measured before equipment is specified.
We do not publish a figure for supplies other than 380V, so whether a given press can be built or adapted for another market's supply is a question to put to us directly rather than something to infer from this page. Ask for the motor and drive rating in writing, and treat any conversion equipment as a separate line item until its scope has been confirmed.
Shipping, installation and what the importer arranges
Published dimensions and weights are what shipping planning is built on. Every press listed above keeps its largest dimension under 1.7 m, so the binding constraints are usually weight and access at the destination rather than the size of the machine. A 950 kg press and a 300 kg press need different lifting arrangements to reach the same floor.
| Item | Typically arranged by | What to settle before ordering |
|---|---|---|
| Export packing and crating | Manufacturer | Crated dimensions and gross weight in writing |
| Freight and insurance | Depends on Incoterms | Which Incoterm applies, and where the handover point is |
| Customs clearance and duties | Importer | HS classification and duty rate for your market |
| Inland transport and rigging | Importer | Access route, lifting equipment, floor loading limit |
| Electrical connection | Importer | Confirmed supply, panel capacity, licensed installer |
| Commissioning and operator training | To be agreed | Whether it is included, remote, or on site |
| Spare and wear parts | To be agreed | Which parts are consumable, lead time, how they are ordered |
| Service in your market | To be agreed | Who attends, response expectation, and what is chargeable |
Arrangement responsibilities vary by contract and Incoterm. This table sets out what to settle in writing rather than a description of any particular arrangement.
The last three rows deserve as much attention as the freight. Over the operating life of a production machine, parts lead time is usually a larger cost than the original price difference between two suppliers, because it converts directly into days when the line is not producing. Ask which parts are treated as consumable, what the normal lead time is to your market, and how a repair is initiated and charged. Those answers are worth having before ordering rather than after a failure.
Certification: what it covers and what it does not
Certification marks are often listed as though they were interchangeable proof of quality. They are not, and for an importer the distinction is practical: each mark answers a different question, and none of them answers whether a machine may be placed on your market.
Our certifications include CE marking, ISO 9001 and ISO 14001, together with the Korean INNO-BIZ designation for technology-innovative small and medium enterprises. Each covers different ground. CE marking indicates conformity for the European Union and EEA, and it is declared per product rather than held as a company credential — so if it bears on your purchase, ask which models the declaration covers. ISO 9001 and ISO 14001 certify quality and environmental management systems at the manufacturing site, which is a statement about process rather than about any individual machine's approval status. INNO-BIZ is a Korean government designation and carries no product-approval meaning outside Korea.
What follows is that market access has to be checked separately, in the destination market, against the requirements that actually apply there. Electrical safety, machinery safety and food-contact suitability are commonly separate regimes with separate marks, and they differ by country and sometimes by state or province. So the question to resolve before importing is not which marks we hold but which marks your market requires — and we would rather answer a specific requirement accurately than have a general list of certifications assumed to cover it.
National Engineering has manufactured oil presses since 1970, holds more than 50 patents including Korean Patent No. 10-1614082 for its hydraulic oil press, registered in 2016, and Korean Patent No. 10-2449471 for its cold press, registered in 2022, and has exported to more than 100 countries.