Rice Milling Line: Which Cleaning Machines You Need Before Husking

In a rice mill, cleaning is the stage nobody wants to spend money on and everybody notices when it is missing. Paddy that reaches the husker with stones in it damages rubber rolls; paddy with immature grains in it produces brokens that cannot be sold at full price.

Stage 1 — receiving and pre-cleaning

Paddy comes in with straw, rope, dust and sand. An air-screen cleaner removes the coarse and fine material by size and air, and protects everything after it.

What goes wrong if you skip it: straw wraps shafts, screens blind over, and the whole line loses capacity within days of harvest.

Stage 2 — destoning

Paddy is harvested close to the ground, so stones and mud balls are normal. A paddy destoner uses a vibrating deck and air to float paddy and sink stones.

What goes wrong if you skip it: stones reach the husker and damage rubber rolls; stones reach the whitener and score the stones and the screen; stones end up in the bag and the customer finds them.

Stage 3 — gravity separation

This is where immature, shrivelled and insect-damaged paddy is removed by density. It is the stage that decides head rice recovery: light paddy becomes brokens, and brokens sell at a discount.

A double-deck gravity separator is common in rice plants because it combines light-fraction removal with density grading in one pass. Smaller plants often use a single-deck unit.

What goes wrong if you skip it: lower head rice yield, more brokens, and a mill that cannot explain why the same paddy gives different results on different days.

Stage 4 — magnet and dust control

Tramp iron from harvest machinery and from your own conveyors must be caught before the husker. Dust must be captured at every transfer point: rice dust is fine, it travels, and it is a real fire and health risk.

Where our machines fit

We supply the cleaning side of the rice line — gravity separators, destoners, elevators, conveyors and bagging equipment — and we are honest about the boundary: huskers, whiteners and polishers are a different speciality. If you are building a complete mill, we will tell you where our scope ends rather than pretend it does not.

What to send us

Paddy variety, incoming contamination, target tonnes per hour, and whether you are building new or adding to an existing mill. With those we can propose the cleaning section and its capacity, and flag where your existing equipment is the real bottleneck.

Talk to us about your rice line.