Optiflow 30 screw press
Double-chamber screw press for multi-oilseed crushing

Why this crop is different
At its oil content mustard is comfortably a full-press seed, and most Indian mills take it in two passes — a first press, cake breaking, then a second press to bring the residual oil down. Kachi ghani mills work the seed cold for flavour and accept more oil left in the cake; expeller mills run warm through a cooker and chase the yield instead. Both routes use the same machines, set differently.
Process flow
Follow the seed from left to right. The numbers on the drawing match the steps below it, and every machine is explained in plain words.
Mustard goes through two presses in a row. The first takes most of the oil, and the second presses the same cake again to recover more.
Seed arrives from the field with dust, straw and stones in it. All of that is taken out first, because it wears the press and spoils the oil.

Shakes the seed over screens to take out dust, straw and anything larger or smaller than the seed.
Cyclone and blower: Sucks away the light dust and drops it in one place, keeping the air in the mill clean.

Removes stones, which are the same size as seed but heavier. One stone can damage the press.

Breaks the seed open between rollers, so the hard outer skin can come away from the soft kernel.

Shakes and blows the broken skins away from the kernels. Husk holds no oil, so it should not go to the press.
Husk goes to husk processing

Holds clean seed ready for pressing. A rotary valve at the bottom lets it out at a steady rate.
Moved between machines by: Bucket elevator, Screw conveyor
The warmed seed gets its first squeeze. This takes most of the oil and leaves a cake that still holds some.

Makes the steam that heats the cooker.

Oil expeller with cooker on top · Single chamber · Optiflow 45
A cooker sits directly on the press, so the seed is warmed by steam and drops straight in to be squeezed.
Moved between machines by: Bucket elevator
The cake from the first press is warmed and squeezed again, to recover the oil still left in it.

Oil expeller with cooker on top · Double chamber · Optiflow 30
A cooker sits directly on the press, so the seed is warmed by steam and drops straight in to be squeezed.
Moved between machines by: Bucket elevator
Cake leaves the press hot. A cooler brings it down before bagging so it stores well. Not every line needs this.

A slowly turning drum with air drawn through it cools the warm meal, so it stores safely in bags.
The meal is weighed into bags. It is valuable in its own right, usually as animal feed.

Holds the meal and weighs out each batch into a bag.
The pressed seed, sold as animal feed or sent on for further processing.
Moved between machines by: Screw conveyor
Oil leaves the press cloudy with bits of seed, called foots. These are sifted out and sent back to the press, and the oil moves on.

The oil from the press is cloudy with bits of seed, called foots. This vibrating screen lets the oil through and holds the bits back.

Carries the wet bits caught by the sifter back up, so they go through the press again and their oil is not wasted.
Solids return to the press

The oil rests here while the finer particles sink to the bottom, and a slow stirrer keeps the tank even.
Moved between machines by: Screw conveyor, Pump
The oil is pushed through filters until it runs clear, then stored.

Forces the oil through cloth-covered plates. The last fine solids stay on the cloth and clear oil comes out.

Stores the clear oil after filtering.
Moved between machines by: Pump
The oil ends here: To storage or packaging
The line
Taken from the catalogue: every machine listed here is rated for this crop. General-purpose conveying, filtration and spares suit every line and are listed separately.
Double-chamber screw press for multi-oilseed crushing
Heavy-duty double-chamber screw press for multi-oilseed application
Heavy-duty double-chamber screw press for multi-oilseed application
High-performance vertical-mounted seed conditioner
Smart feeding that prevents bridging in the feed hopper
Better cooling, easy conveying and consistent packaging of cake
What it earns
Set to mustard at 38% oil, the figure we publish for this crop. The tonnage, the hours and the three prices are yours to change — the rates shown are examples, not a quotation.
| Oil sales | ₹607,000 |
| Cake sales | ₹214,000 |
| Seed cost | −₹713,000 |
| Gross margin per day, before power and labour | ₹107,000 |
| Per month · 25 working days | ₹2,684,000 |
Worked out from the three prices on the left, which are examples. Put your own in before you trust this figure.
| Stage | Duty | Machine | Units |
|---|
Each machine is sized from the capacity we publish on its own page. Stages we do not publish a capacity for are sized to your layout.
Machine list, layout and power load for your numbers.
Where we deliver
Most of our mustard enquiries come from Alwar, Bharatpur, Kota, Agra and Hathras. We quote and commission across India, and export through our Ludhiana works.
Other crops
Three short steps. Our team replies on WhatsApp, by phone or by email, whichever you prefer.