Rice Milling Line

Short answer: A rice milling line removes the husk and bran from paddy and grades the white rice into whole grains and brokens. The configuration depends mainly on paddy moisture and impurity, the head rice yield you need, and whether you sell bulk rice or polished, sorted rice in retail packs.

How it works

1. Pre-cleaning and destoning — a cleaner removes straw, dust and light matter; a destoner takes out stones of similar size to the grain.
2. Husking — rubber-roll huskers strip the husk, which is aspirated away and collected.
3. Paddy separation — a separator returns unhusked paddy to the husker and passes brown rice forward.
4. Whitening — abrasive and friction whiteners remove the bran layer. Larger mills use two or more passes so each stage removes less and the grain heats less.
5. Polishing — an optional water polisher gives a clean, glossy surface.
6. Grading and sorting — length graders separate whole grains from brokens; a colour sorter can reject chalky, yellow or foreign grains.
7. Weighing and packing — finished rice goes to bins and bagging scales.

Which configuration fits

Form	Suits	Watch out for
Compact combined mill	Local markets, starter mills	Fewer adjustments; yield is more sensitive to paddy quality
Multi-pass whitening	Commercial mills with steady supply	Needs more height, elevators and floor area
With colour sorting and polishing	Retail and export packs	Higher compressed air demand and more maintenance points

If you need germ-retained or lightly milled rice, the whitening setup is chosen differently — tell us early.

What we need from you to quote

• Paddy variety, moisture range and impurity level (samples are best)
• Target output, stated on paddy intake per hour or per day
• Head rice yield target and degree of milling
• Plans for husk, bran and broken rice
• Building dimensions, height and power supply
• Bag sizes and packing method

Where it sits in a line

Paddy usually comes from dryers or storage silos. Within the line, a grain optical sorter handles the final quality grading. After packing, an in-line checkweigher verifies bag weights, and small retail packs can be made on a VFFS packaging machine or a vacuum packaging machine for vacuum bricks.