For farms, factories and contract mills: screw presses for rapeseed, flax, pumpkin, hemp and over 50 other oilseeds. From compact table presses to industrial systems - CE certified, available from stock.
Turnkey premium systems from 500 to 5,000 kg/h for cooperatives, contract mills and the food industry. Engineering, pressing, filtration and control — from a single source. Made in Germany.
What is a seed press?
A seed press (screw press) presses oilseeds using mechanical pressure - without solvents, without heating. The result: native, cold-pressed oil with full flavor, maximum ingredients and a long shelf life. Ölwerk seed presses are designed for professional continuous operation: robust steel construction, easy maintenance, replaceable press heads.
During cold pressing, the temperature of the oil is limited to a maximum of 27°C (EU Regulation 1169/2011). This protects heat-sensitive fatty acids, vitamins and flavors. Cold-pressed oil can be declared as “native cold-pressed” — a crucial marketing advantage in direct sales.
Max. pressing temperature: 27°C
Declaration: “natively cold-pressed”
Yield: 75–90% of the oil content
Farmers with their own rapeseed or flax cultivation, manufacturing companies for direct marketing, organic companies with Demeter or EU organic certification, loam mills for regional customers, cooking oil manufacturers and cosmetics companies with a need for special vegetable oils.
Typical entry: 5-30 kg/h
Professional operation: 50-200 kg/h
Industry: from 200 kg/h
Screw presses work continuously - ideal for continuous operation and consistent quality. Hydraulic presses (batch presses) achieve higher yields with very soft seeds (grape seed, argan), but are slower. Ölwerk screw presses are the standard technology for commercial manufactories and clay mills.
Operation: continuous
Throughput: constant & automatic
Cleaning: simple, CIP-capable
Models & prices
All Ölwerk seed presses are Made in Germany, CE certified and ready for immediate use. Choose the capacity to suit your throughput and oil type - upgrade and expansion possible at any time.
| Model | Type | Capacity | Types of oil | Use | Price (net) |
|---|---|---|---|---|---|
| OW100s-inox base | Table press | 5-15 kg/h | All oilseeds | Entry level, Demo, catering | from € 990 |
| OW500s-inox yard | stand press | 20-40 kg/h | Rapeseed, flax, pumpkin, hemp | Farm press, direct marketing | from € 2,490 |
| OW510s-inox Pro | Professional screw press | 50-100 kg/h | All oilseeds + olive | Manufactory, contract mill | from € 6,900 |
| OW5500s-inox Industrial | Industrial press | 150-250 kg/h | All raw materials | Contract mill, organic operation, export | from € 18,500 |
| OW7500s-inox Plus | Large press with CIP | 300–500 kg/h | All raw materials + special | Industry, cooperatives | on request |
All prices plus statutory. VAT free delivery in Germany. Assembly and commissioning on request.
Which seeds can I press?
Ölwerk seed presses process almost all oil-containing seeds. Oil content, shell hardness and viscosity determine the pressing temperature and the optimal pressing screw diameter. We will help you choose the right configuration for your seeds.
The most pressed oilseeds in Germany. Rapeseed: 40-45% oil content, easy to press, slightly cloudy - plate filter recommended. Sunflower: 40-55%, mild aromas, very high yield. Linseed oil: 35–45%, sensitive to oxidation - quick processing and N₂ filling are important.
Rapeseed oil content: 40–45%
Sunflower: 40–55%
Flax: 35–45%
High-price seeds with direct marketing prices of €8–25/100ml. Pumpkin seed oil: intensely green, gentle pressing without heat generation. Black cumin oil: very valuable, low oil content (25–35%). Hemp oil: good Omega 3/6 ratio, sensitive to oxidation.
Pumpkin seed: 35–50%
Black cumin: 25–35%
Hemp: 28–35%
High value nuts (€15-40/100ml direct sales) require careful de-shelling and even preheating. Sesame: 45-55% oil content, good yield, intense aroma. Moringa: 30–40%, sought-after beauty oil with a very high market price.
Walnut: 50–65%
Sesame: 45–55%
Moringa: 30–40%
Exotic oilseeds for cosmetics and pharmaceuticals. Often with very low oil content (8-18%) and special ingredients. Argan: Manual work is often required when peeling. Camelina: easy to press, high omega-3 content - growing interest from the food industry.
Argan: 30-55% (after peeling)
Camelina: 28–40%
Neem: 20–30%
Technology & Structure
The principle is simple - the execution determines quality, yield and maintenance effort. Ölwerk presses are designed for continuous operation in manufactories and contract mills.
The seeds are fed into the auger via a feeding funnel. Optional: electrical preheating (30–50°C) for better flowability for hard seeds such as pumpkin seeds.
The press screw compacts the seeds progressively - the pressure increases from stage to stage. The oil comes out through the press basket and the press cake leaves the press at the end.
The fresh oil contains turbidity and suspended particles. A pre-filter or a settling tank separates coarse particles - the basis for the subsequent fine filtration.
Plate filters or membrane filters produce clear, long-lasting cooking oil. The connected filling station fills bottles or canisters in batches with a quantity counter.
Material: hardened steel (12.9). Press basket: perforated stainless steel cylinder with a gap width of 0.2–0.5 mm depending on the type of oil. Screw diameter: 45-120mm depending on the model. Interchangeable for different types of oil.
Electric motor 0.75–11 kW depending on model. Speed control via frequency converter. Digital display for temperature and power. CE-compliant control cabinet. Optional: PLC control with batch documentation.
Dry cleaning between types: 20–30 min. CIP cleaning (cleaning-in-place) with full system. Maintenance interval: every 200-500 operating hours depending on seed hardness. Spare parts from stock, typical MTBF: >5,000 h.
ROI & profitability
The value of a seed press lies in the added value: instead of selling raw materials, you sell high-quality cooking oil. The price range between oilseed and finished cold-pressed oil is 5-15 times.
Price range between oilseed and premium oil depending on the variety. Contract pressing for neighboring companies: 0.80–1.50 €/kg weight.
Rapeseed
0.60 €/kg ⇒ 4-6 € oil (~7×)
Pumpkin
3.50 €/kg ⇒ 25-40 € oil (~10×)
Black cumin
5.00 €/kg ⇒ 15–25 € oil (~12×)
Time until the system is fully amortized — depending on pressing capacity, contract pressing orders and direct marketing.
OW 100 · Farm press
< 1 harvest season
OW 400 · 500 · 510
1–2 years
OW 5500 · 7500
1–2 years at full capacity
The press cake (oil meal) contains 8-15% residual oil and is valuable animal feed or fertilizer. Additional additional revenue.
Rapeseed cake
0.20-0.40 €/kg (animal feed)
Pumpkin cake
up to 1.50 €/kg (premium)
Linseed cake
0.30-0.60 €/kg
Advanced
A seed press is the heart of it - discover the right additional components for your complete oil mill.
Plate filters, chamber filters, membrane filtration - clear, long-lasting oil after pressing. From stock, Made in Germany.
View filter technology →Complete turnkey systems from 50 to 2,000 kg/h - raw material acceptance, press, filtration, filling from a single source.
View oil mills →Handcrafted manufacturing systems with pressing system, multi-stage filtration and filling station — for direct marketers and contract mills.
Discover the factory →Rent an oil press for a season instead of buying it - ideal for getting started and for seasonal production without tying up capital.
Rent a press →A seed press is the key machine in every oil mill. Here you will find complete knowledge about screw presses, processes, seeds, pressure characteristics, yield and economic efficiency.
A seed press - in technical terms Screw press or Expeller — is a continuously operating press machine. A screw conveyor transports the seeds into a pressing chamber, which reduces the cross section through conical taper. Pressures of 800-1,500 bar blast the oil out of the oil cells. Press residue remains as press cake.
When cold pressed, the outlet temperature remains below 40-60°C. Receives: Tocopherols (vitamin E), polyphenols, carotenoids, typical aroma of the variety. Yield 5–15% under hot pressing, but marketable as “native oil” with a high market price.
The press spindle is the most wear-active component. Service life typically 10,000-20,000 operating hours. oelwerk offers interchangeable spindles for OW 100/400/500/510. Conical outlet nozzles can be exchanged for different seed dimensions.
Vegetable oil market Germany: approx. 4.3 million t annually; Rapeseed oil dominates > 60%. Direct marketers are growing: cold-pressed cooking oil achieves 8-20 €/liter, refined oil under 2 €/liter. UFOP counts around 800 decentralized oil mills in Germany.
1 kg of rapeseed (0.30 €) produces approx. 350 ml of cooking oil (3-6 €) and 650 g of press cake (0.30 €). Crude oil value: approx. 6-10x raw material value. Typically 50-500% higher added value for direct marketers.
EU Regulation 178/2002 (Basic Food Law), 852/2004 (Hygiene), 1169/2011 (Labeling). For B2B often IFS Food or BRCGS mandatory. Organic according to EC Organic Regulation 2018/848. s-inox stainless steel is standard for CIP capability.
With good maintenance, machines last > 20 years.
Mechanical pressing: 0.15–0.3 kWh per liter of oil. Solvent extraction: 1-2 kWh + hexane. Decentralized cold pressing is one of the most ecologically efficient forms of oil processing.
Compact answers about screw presses, seeds and economic efficiency.
The complete OW series from the oelwerk shop. Stainless steel s-inox / w-inox, Made in Germany. All models available immediately from stock. Net prices.
| Parameters | OW 100 s-inox | OW 400 w-inox | OW 500 s-inox | OW 510 s-inox | OW 5500 s-inox | OW 7500 s-inox |
|---|---|---|---|---|---|---|
| Class | Farm mill / Hobby | Farm mill / Hobby | Direct marketing | Manufactory | Industry | Large industry |
| Seed throughput (typ.) | up to 25 kg/h | up to 14 kg/h | up to 25 kg/h | up to 14 kg/h | on request | on request |
| Daily output (24 h) | up to 600 kg | up to 336 kg | up to 600 kg | up to 336 kg | on request | on request |
| engine power | on request | on request | on request | on request | 5.5 kW | 7.5 kW |
| Material | Stainless steel (s-inox) | Stainless steel (w-inox) | Stainless steel (s-inox) | Stainless steel (s-inox) | Stainless steel (s-inox) | Stainless steel (s-inox) |
| Processable seeds | 50+ | 50+ | 50+ | 50+ | 50+ | 50+ |
| Press spindle exchangeable | yes | yes | yes | yes | yes | yes |
| Digital temperature control | yes | yes | yes | yes | yes | yes |
| Award | German Innovation Award | — | — | — | — | — |
| Delivery time | Immediately available | Immediately available | Immediately available | Immediately available | Immediately available | Immediately available |
| Price (net) | 3.599 € | 3.799 € | 5.990 € | 6.990 € | 25.000 € | 24.980 € |
All models can be ordered in oelwerk Shop. Note: Exact seed rates depend on the seed and seed moisture (rapeseed, sunflower, linseed, walnut, etc. vary). For a project-specific design with specific quantity values, use the inquiry form below.
Which seeds provide how much oil? Mechanical cold pressing in comparison (% oil of seed weight).
Standard seeds · Late lines · Premium seeds
All models can be ordered in the oelwerk shop. Made in Germany, stainless steel s-inox / w-inox. Net prices.
| Model | Class | Throughput | Processable seeds | Material | Delivery | Price (net) |
|---|---|---|---|---|---|---|
| OW 100 s-inox | Farm mill / Hobby | up to 14 kg/h | 50+ seeds | stainless steel s-inox | immediately | 3.599 € |
| OW 400 w-inox | farm mill / hobby | up to 14 kg/h | 50+ seeds | stainless steel w-inox | immediately | 3.799 € |
| OW 500 s-inox | Direct marketing | up to 25 kg/h | 100+ seeds | Stainless steel s-inox | immediately | 5.990 € |
| OW 510 s-inox | Manufactory | up to 25 kg/h | 100+ seeds | Stainless steel s-inox | immediately | 6.990 € |
| OW 5500 s-inox | Industry | on request | 50+ seeds | stainless steel s-inox | immediately | 25.000 € |
| OW 7500 s-inox | large industry | on request | 50+ seeds | stainless steel s-inox | immediately | 24.980 € |
Net prices plus VAT VAT. Shipping DE free of charge. Assembly and commissioning on request. Data source: oelwerk-Shop 2026.
Briefly describe your project - we will respond with specific key data and an offer.
