With sesame, the roaster decides the product long before the press tonnage does

Decide first

Pick the route before the machine — here's the quick read

Roasted and cold are not two settings on one machine. They build different aromas, run different cycles, use different press classes, and sell into different markets. Choose the lane first.

Step by step

The sesame line from clean seed to bottled oil

1. Step 1

   1 · Clean to impurities <0.1%

   Vibrating screen + air aspirator + magnetic separator + destoner. Target impurities <0.1%, stones <0.05%. At a 1000-seed weight of 2.5-4 g, dust and grit show up as dark specks in finished oil.

2. Step 2

   2 · Set the route: roast 180-200°C or stay ≤60°C

   Roasted: drum or wok roaster 180-200°C, 15-25 min, until amber-brown — sesamol forms here from sesamolin. Cold: skip roasting, keep ≤60°C end-to-end. Log roast temperature and time per batch.

3. Step 3

   3 · Load the hydraulic press by a fixed rule

   Batch 80-100 kg per barrel. Roasted cycle 40-60 min at 80-100°C on 200-325 ton; cold cycle 60-90 min at ≤60°C on 355-500 ton. System pressure 60 MPa, 2.2 kW motor — the same hydraulics across the range.

4. Step 4

   4 · Filter to the clarity the market needs

   Plate-frame 200-300 mesh right after pressing, then settle 24-48 h. Add a 1-5 μm bag filter for retail clarity, or a 0.22 μm sterile filter for cosmetic grade. Target FFA <0.5%, peroxide <5 meq O₂/kg.

5. Step 5

   5 · Bottle in dark glass with N₂

   100-250 ml dark glass, nitrogen-flushed headspace O₂ <2%. Sesamol and sesamin (0.4-1.0% combined) then deliver 12-24 months shelf life at ambient. Label route, variety, and batch.

Key parameters

Real sesame numbers to size the line

Every figure below comes from the production spec, not a generic catalog. Use them to sanity-check any quote.

Avoid rework

Mistakes the press gets blamed for — but that belong upstream

• Vague roast control: 180-200°C × 15-25 min defines aroma, color, and sesamol formation. A drifting roast, not the press, is why aroma batches vary.
• Weak cleaning: at 2.5-4 g per 1000 seeds, dust and stones above 0.1% blind the filter and leave dark specks blamed on the press.
• Selling roasted oil under a cold-pressed claim: cold press means ≤60°C end-to-end (≤40°C for cosmetic). Mixing routes on one bottle breaks the claim.
• Sizing only the press: roaster, settling, filtration depth, and dark-glass filling must match its throughput, or the press waits on a bottleneck elsewhere.

A disciplined roast log and clean fine-seed feed remove most arguments about machine size that are really aroma and cleaning problems.

Why hydraulic

Why a hydraulic press suits sesame oil — and what stays constant across the range

Sesame is a small, high-oil seed (45-55% oil at a 1000-seed weight of only 2.5-4 g) sold almost entirely on flavor, color, and clarity, which is exactly where a hydraulic press earns its place: it applies a slow, even squeeze that protects the roasted aroma and amber color instead of the high-shear heat of a screw press. Across the range — from the 200-325 ton frames matched to roasted oil up to the 355-500 ton frames used for cold pressing — the hydraulic system is the same: 60 MPa system pressure driven by a 2.2 kW motor, mechanical high- and low-pressure relief valves rather than solenoid valves, and twin pressure gauges whose needles should always read together. What changes between models is frame strength and pressure stability; the core hydraulics are shared. So the route is settled first and the frame follows: a 200-325 ton frame suits the faster roasted cycle (40-60 min at 80-100°C, yield 40-50%), while a 355-500 ton frame absorbs the higher mechanical stress of the cold cycle (60-90 min at ≤60°C, yield 35-42%) without deforming over years of use. Because the product is premium and aroma-led, the press is only one node: a drifting roaster, a dusty fine-seed feed, or shallow filtration will show up in the bottle no matter how large the press. A correctly sized press keeps its frame true, holds pressure steady, presses out more oil at a gentle temperature, and protects the sesamol and sesamin that give the oil 12-24 months of shelf life — the real reasons sesame buyers pay a premium per bottle rather than per ton.

Project boundary

What to confirm before scoping Sesame Oil Press Process Guide

Sesame Oil Press Process Guide should not be quoted from an equipment name alone. Check feed lots, target oil, post-press handling, and packing rhythm in one scope before deciding which Sesame Oil Press modules stay. Factory sesame hot: ~30 kg/batch with 6 partitions on 325; cold uses 355–500. Do not use peanut 100 kg barrel loads.

When feed condition, moisture, impurities, batch weight, and product position are unclear, press tonnage and filter area become guesswork. Factory systems share 60 MPa and 2.2 kW motors; hot pure press is 30–40 min/barrel and cold pure press is ~2 h/barrel — cycle time matters more than brochure tonnage.

• Confirm whether feed is whole seed, kernels, pretreated material, or an existing semi-finished stream.
• Confirm whether the target is crude oil, filtered oil, bottled oil, drum ingredient oil, or a refining handoff.
• Hot cycle reference: pure press 30-40 min/barrel, ~1.5 h for 2 barrels with loading; cold pure press ~2 h/barrel, ~4.5 h for 2 barrels.
• Confirm batch rhythm, labor, changeover, retained samples, power (often 380V/50Hz/3ph), and site install conditions.

Factory model check

Match hot / cold models to factory hard data

Pin models to published factory specs before tonnage talk.

Hot 300/325: 300–325 ton, 60 MPa system, standard barrel Ø390×800 mm / max 100 kg, pure press 30–40 min/barrel, ~1.5 h for 2 barrels with loading, 2.2 kW motor. Cold 355/400/426/480/500: 370–630 ton, integrated frame, same 100 kg standard barrel, pure press ~2 h/barrel, ~4.5 h for 2 barrels with loading; optional Ø300 high-pressure barrel max 60 kg. Residual oil target ~≤5% (peanut hot often 6–8% measured).

• Standard barrel Ø390×800 mm, max ~100 kg crushed feed; optional Ø300 high-pressure barrel max ~60 kg.
• Cylinder material 27SiMn; cold frames are integrated molded steel; hot frames are typically H-type channel steel.
• Factory sesame hot: ~30 kg/batch with 6 partitions on 325; cold uses 355–500. Do not use peanut 100 kg barrel loads.

Equipment check

project scope needs to land in equipment interfaces

Once the route is clear, write the interfaces: how preparation feeds the press, how oil leaves the press, how filtration connects to tanks, and how packing receives finished oil.