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Component library · 14 machines
Fourteen line components, documented in one place. Buy a single machine for a replacement or a plant upgrade, and get the interface drawing, the duty point and the spares list with it — not just a model number.
What this page is for
We build complete processing lines. That means every machine below has been selected, installed and commissioned as part of a real flow — and we know where it fails when the machine upstream of it is wrong.
A machine in your existing plant has reached the end of its service life and you need a like-for-like unit that bolts into the same footprint.
You are adding a degermination stage, a second sifting deck or a packing head to a line that already runs, and need the upstream and downstream interfaces matched.
One section of your line limits output. A single correctly sized elevator or aspirator can cost less than a new line and recover the throughput you already paid for.
Scoping a whole plant? Start at /solutions. A line's performance is decided by its flow sheet, not by fourteen individually correct machines.
We do not publish power ratings, capacities or dimensions we have not confirmed for your duty point. Every open figure is marked 〔TBC〕 until your material, throughput and site conditions are known.
How to specify
Send these five things and we can return a drawing, a duty point and a budget range.
Samples help. If you can send a small quantity of your actual raw material, we test against it rather than against a datasheet — 〔sample testing procedure TBC〕.
Machine library
Installed power, throughput, dimensions and weight for every machine are 〔TBC, confirmed per duty point〕. The text below describes function and selection logic, not a parameter commitment.
Intake & cleaning
The first screen in the flow removes oversize and fine impurities before they reach any mill. Screen configuration is set by your impurity profile, not by a standard deck — send the contaminant list and we match the top and bottom sieves. Undersized cleaning here shows up later as worn rolls and off-spec flour. 〔Screen area and deck count TBC〕
Tramp iron from harvesting and transport is the cheapest failure to prevent and the most expensive to ignore: one bolt through a roller mill destroys a roll pair. We place magnetic protection before every milling stage, not only at intake. Specify drum or plate type by the product stream and available headroom. 〔Magnet type and cleaning method TBC〕
Stones and dense impurities share the size of grain but not its specific gravity, so screening alone will not remove them. A destoner uses an inclined oscillating deck and controlled airflow to split the stream by density. For maize and wheat lines feeding roller mills, this stage protects the grinding gap and keeps the ash figure honest. 〔Air volume and deck slope TBC〕
Tempering is where wheat milling is won or lost: water is added and held for a controlled period so bran separates cleanly from endosperm rather than powdering into the flour. Maize conditioning for degermination follows a different logic — the goal is a tough bran and a workable germ, not extraction rate. Tell us the variety and we set the target moisture. 〔Target moisture and resting time TBC〕
Milling & grading
For grits and low-fat maize meal, the germ has to come out largely intact so the oil fraction stays recoverable and the finished grits keep their shelf life. The machine cracks rather than pulverises; rotor speed, clearance and screen selection are tuned to kernel hardness and size. This is the defining stage of a grits line and the reason a flour mill cannot be relabelled as one. 〔Rotor clearance and screen spec TBC〕
The break stage opens the kernel and lifts endosperm away from bran in graded steps, with corrugated rolls running at differential speed. Corrugation profile, roll gap and differential all change with grain hardness and the extraction you are targeting. A break system set for soft wheat will simply flatten hard wheat. 〔Roll dimensions, fluting and differential TBC〕
Smooth rolls reduce the purified middlings to finished flour fineness without tearing the bran into the product. Reduction is a sequence, not one pass: each grinding step is paired with its own sifting step. We size the number of passages from the flour specification you need to hit. 〔Passage count and roll pressure TBC〕
Sifting decides what goes forward, what returns for another pass and what leaves as by-product. Section count and sieve clothing are chosen per stream, which is why a "one size" sifter quietly caps a line's output. This is also the stage where multi-grade grits are split into the particle bands a local market actually buys. 〔Section count and sieve plan TBC〕
Air classification lifts light bran, husk and dust off the denser product stream at several points in the flow. Used with the plansifter it controls both product cleanliness and the fat/fibre figures buyers test for. Air volume is balanced to the stream — too much and you throw away saleable product. 〔Air volume and ducting layout TBC〕
Conveying & dust control
Vertical transfer looks like a commodity until it becomes the bottleneck: bucket size, belt speed and head shape all have to suit the material's bulk density and fragility. For grits we specify gentle discharge to hold granulation; for flour we prioritise sealed, cleanable casings. We confirm lift height against your building drawings before manufacture. 〔Lift height, capacity and discharge type TBC〕
Dust control is a safety and housekeeping requirement as much as a product one. Cyclones handle coarse separation at each aspiration point; pulse-jet units handle the fines. The ducting layout, filter media and extraction volume are engineered per line, and we flag where a classified-area approach is needed for your destination market. 〔Air volume, filter area and classification TBC〕
Packing & finishing
Packing is where most first plants underestimate labour. A 10 TPD line can produce faster than a manual packing station can close bags, and the whole line waits. We size weighing, filling and closing as one station against your bag formats and shift pattern. 〔Bag range and accuracy class TBC〕
Where flour fortification is required by the destination market, the dosing unit has to hold a tight inclusion rate at varying line throughput. We match the feeder to the premix and provide the calibration procedure with the handover documentation. 〔Premix, inclusion rate and local regulation TBC〕
Blending lets a mill hold a consistent product grade across variable wheat or maize lots, and lets you produce two commercial grades from one milling train. Batch versus continuous is chosen from your product mix and available floor space. 〔Batch size and mixing time TBC〕
Compatibility
We will not promise that a machine drops into a third-party line without checking. Before manufacture we confirm inlet/outlet positions, mounting, drive direction, power supply and the control interface against your drawings. Where a match is not possible we say so and propose the modification — or decline the order.
Machines supplied as part of a turnkey line are covered by the same whole-line warranty as the rest of the plant — 〔warranty term TBC〕. Standalone machines are quoted with their own scope, stated explicitly in the proposal. Documentation is listed on /certifications.
Component questions
Yes. Replacement, upgrade and debottlenecking orders are a normal part of what we do. You will still get an engineering review, because a machine quoted without its interfaces is a machine that may not fit.
We can supply wear parts against a confirmed drawing and material spec. Where we cannot verify compatibility, we will tell you rather than ship an approximate part. 〔Spare parts programme TBC〕
For a standalone unit we supply installation drawings and can provide commissioning supervision as a separate scope. 〔Installation and travel terms TBC〕
Enquiry
Tell us the machine, the duty point and what sits upstream and downstream. A processing engineer replies within two working days with a drawing scope and a budget range.
Or write to sales@grainprocessingline.com