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Mustard oil mill plant

Expellers, cookers and filtration for mustard, built for the way Indian mills actually run the seed — cold for a kachi ghani brand, or warm when the yield has to come first.

38%Oil content of the seed
2 presses, one after the otherHow the presses are set up
6Machines for this crop
See the full process line
Mustard

Why this crop is different

Crushing Mustard

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.

  • Mustard needs little preparation: cleaning and magnetic separation to protect the worms, then conditioning to even out moisture before the first press.
  • If you are crushing for a kachi ghani brand rather than for yield, say so when you enquire: the cooker and the press settings change.

Process flow

How a mustard oil line works

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.

Mustard line: pressed twice, one after the otherMustard 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.MUSTARD1Seed cleaner2Destoner3Cracker4Kernel and husk separatorHusk goes to huskprocessing5Seed storage siloClean the seed6Boiler7Pre-pressSingle chamberOptiflow 45SteamPre-press (1st pressing)8Final pressDouble chamberOptiflow 30Final press (2ndpressing)9Meal coolerCool the cakeOPTIONAL10Batch hopper and weighing machine ×311Bagged mealWeigh and bag the mealMEAL12Vibro sifter13Paver chain conveyorSolids return to the press14Settling oil tankSeparate the oil from the solids15Filter press16Filtered oil tankFilter the oilOILTo storage orpackagingOil goes down to the oil sectionSeedCake / mealOilSteamIllustrative 3D views. Not to scale. Key machines shown. Conveyors and elevators are listed in the steps.Mahadev International© All rights reserved. oilseedmachinery.com
Swipe sideways to see the whole drawing.Open the full drawing

The line, step by step

Clean the seed

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.

  1. 1
    Seed cleaner

    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.

  2. 2
    Destoner

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

  3. 3
    Cracker

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

  4. 4
    Kernel and husk separator

    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

  5. 5
    Seed storage silo

    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

Pre-press (1st pressing)

The warmed seed gets its first squeeze. This takes most of the oil and leaves a cake that still holds some.

  1. 6
    Boiler

    Makes the steam that heats the cooker.

  2. 7
    Pre-press

    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

Final press (2nd pressing)

The cake from the first press is warmed and squeezed again, to recover the oil still left in it.

  1. 8
    Final press

    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

Cool the cake

Optional

Cake leaves the press hot. A cooler brings it down before bagging so it stores well. Not every line needs this.

  1. 9
    Meal cooler

    A slowly turning drum with air drawn through it cools the warm meal, so it stores safely in bags.

Weigh and bag the meal

The meal is weighed into bags. It is valuable in its own right, usually as animal feed.

  1. 10
    Batch hopper and weighing machine ×3

    Holds the meal and weighs out each batch into a bag.

  2. 11
    Bagged meal

    The pressed seed, sold as animal feed or sent on for further processing.

Moved between machines by: Screw conveyor

Separate the oil from the solids

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.

  1. 12
    Vibro sifter

    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.

  2. 13
    Paver chain conveyor

    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

  3. 14
    Settling oil tank

    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

Filter the oil

The oil is pushed through filters until it runs clear, then stored.

  1. 15
    Filter press

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

  2. 16
    Filtered oil tank

    Stores the clear oil after filtering.

Moved between machines by: Pump

The oil ends here: To storage or packaging

All process lines

The line

Machines for Mustard

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.

Oil expellers

Optiflow 40 screw press

Heavy-duty double-chamber screw press for multi-oilseed application

Crushing capacity10–11 TPD final press · 13–14 TPD pre-press
Motor power30 kW × 960 rpm
MustardGroundnutSoybeanSunflower
View details
Oil expellers

Optiflow 50 screw press

Heavy-duty double-chamber screw press for multi-oilseed application

Crushing capacity11–12 TPD final press · 14–15 TPD pre-press
Motor power50 HP × 960 rpm
MustardGroundnutSoybeanSunflower
View details
Seed cookers

Oilseed cooker

High-performance vertical-mounted seed conditioner

Capacity100 TPD (MCH-500) · 200 TPD (MCH-1000)
Motor power15 HP (MCH-500) · 30 HP (MCH-1000)
GroundnutSesameSunflowerMacadamia
View details
Expeller accessories

Crammer feeder

Smart feeding that prevents bridging in the feed hopper

FitsOptiflow presses and others on request
MustardGroundnutSoybeanSunflower
View details
Expeller accessories

Cake breaker

Better cooling, easy conveying and consistent packaging of cake

FitsOptiflow presses and others on request
MustardGroundnutSoybeanSunflower
View details

See the full catalogue · Spare parts finder

What it earns

What a Mustard line produces in a day

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 content varies by seed, variety and growing region, so the figure above is only a typical starting point. Enter the number from your own lab report or purchase contract if you have one.

Prices are example rates; replace them with your local market prices. Machine capacity is rated per 24 hours.

Seed pressed11.5 tper day
Oil4,046 L3.70 t per day
Cake7.63 tper day
Oil sales₹607,000
Cake sales · 26% of 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.

The line this needs

StageDutyMachineUnits

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.

Get a project proposal for this

Machine list, layout and power load for your numbers.

What an oil mill costs to set up

Where we deliver

Growing regions we supply

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.

RajasthanMadhya PradeshUttar PradeshHaryanaPunjab

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