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A patented roller gin built for cotton breeders who cannot afford to lose a single seed. All-bearing transmission, integrated motor frame, anti-wrapping geometry and hand-lapped knife-and-roller fitting deliver clean lint separation with minimal seed damage — around 20 single-plant samples an hour, sample after sample, variety after variety.
Bench-top footprint of 490 × 330 mm — installs beside any laboratory workbench, no dedicated room required.
The AT003 is a laboratory-scale roller gin engineered for cotton breeding, seed multiplication and germplasm evaluation. Instead of high-speed saws, it separates lint from seed by friction and mechanical restraint — the gentlest method available — so that boll weight, lint percentage, seed index and fibre quality can all be measured from the same untouched sample.
The machine is manufactured to a patented design with all-bearing transmission and an integrated motor-and-frame layout. The result is a compact unit that runs with low vibration and low noise, stays safe in continuous hands-on operation, cleans out quickly between varieties and resists the fibre wrapping that plagues cheaper laboratory gins.
Its most critical parts — the ginning roller and the stationary knife — are hand-lapped on a precision lapping table. This manual fitting is what keeps the knife-to-roller clearance consistent at 1–2 mm, and it is the reason the AT003 achieves a low seed-cracking rate even on small, high-value breeding lots.
Anywhere a small quantity of seed cotton must be ginned without losing information, the AT003 is the right tool.
Ginning of segregating generations and advanced lines, providing clean lint and intact seed for every selection decision.
One plant in, one traceable sample out — about 20 plants per hour, so boll weight, lint percentage and seed index can be recorded genotype by genotype.
Routine pre-treatment for conventional, hybrid, mutation and molecular-marker breeding trials.
Sampling of foundation and certified seed lots to verify lint turnout and seed quality before release.
Demonstrating ginning theory, fibre–seed separation and lint-percentage measurement in crop-science courses.
Sample preparation for lint percentage analysis in cotton purchasing, grading and fibre-testing laboratories.
Roller ginning is a mechanical sorting action rather than an impact action. Five steps, no saw teeth, no cracking.
Seed cotton is fed through an anti-splash hopper that keeps fly and loose fibre inside the machine. Seed rolls down onto the rotating roller surface.
The leather-covered roller (surface condition 99.9%) has a high friction coefficient against cotton fibre, so the lint is drawn along with the roller as it turns.
The stationary knife bears on the roller with a precisely lapped clearance of 1–2 mm. A cotton seed is larger than this gap, so it cannot follow the fibre through.
Fibre is pulled continuously past the knife edge and leaves as clean lint, while the seed is held back and rolls away — the fibre and the seed are both recovered whole.
Lint and seed leave through separate paths. Because nothing is beaten or cut, the fibre length distribution and the seed coat remain as they were in the boll.
The USP points our customers confirm after months on the bench — and the reasons they order a second unit.
The core mechanism is patent-protected — a mature, proven structure, not an assembled prototype.
Every rotating part runs in bearings: steady motion, little wear, a long service life.
Integrated design — plug in and work, no alignment or belt adjustment, footprint only 490 × 330 mm.
Runs quietly in a laboratory environment, leaving seed-testing records undisturbed.
Fibre does not wind around the shaft or choke the machine — work continues without interruption.
Fast clean-out between varieties and batches — cross-contamination between samples is ruled out.
The critical mating faces are lapped by hand, holding roller-and-knife accuracy — hence the low seed-cracking rate.
No flying fibre at the feed point: less material loss and a tidy working surface.
All figures are nominal and may be refined for specific configurations; final data follow the technical documents supplied with each unit.
| Parameter | Value |
|---|---|
| Model | AT003 |
| Type | Laboratory roller gin (single-roller, stationary knife) |
| Ginning roller diameter × length | Φ115 × 205 mm |
| Roller surface condition | 99.9% |
| Net lint rate (gin turnout) | ≥ 98% of the seed cotton lint content |
| Lint output rate | ≥ original lint percentage of the seed cotton |
| Feed hopper | Anti-splash (fibre fly suppression) design |
| Throughput (single-plant samples) | approx. 20 plants/h |
| Motor | 0.37 kW, 1440 r/min |
| Overall dimensions | 490 × 330 × 740 mm |
| Knife-to-roller clearance | 1–2 mm (adjustable) |
| Net weight | 55 kg |
| Aspect | AT003 roller gin | Saw gin |
|---|---|---|
| Separation method | Friction against a roller, restrained by a knife | High-speed toothed saws |
| Seed condition | Whole seed, minimal cracking — suitable for re-sowing and seed-index work | Visible cracking and fibre damage possible |
| Fibre quality | Length and maturity preserved for testing | Fibre stressed by impact |
| Best sample size | Single bolls, small plot samples, breeding lines | Bulk commercial lots |
| Throughput | approx. 20 plants/h | Far higher output, in bulk weight |
| Cross-contamination risk | Very low — quick clean-out | Harder to purge between samples |
If your question is not answered here, write to us — we answer technical enquiries within one working day.
A saw gin pulls the fibre with high-speed toothed saws. It is fast and suits high-volume commercial ginning, but it stresses the fibre and can crack seed. The AT003 is a roller gin: the fibre is gripped by friction against a leather-covered roller and stripped past a stationary knife, so both the seed and the fibre stay intact. That is why roller gins are preferred for breeding samples and single-boll seed cotton.
Approximately 20 plants per hour. Breeding and seed-testing work is organised plant by plant, so the bolls from one plant are ginned as a single sample and boll weight, lint percentage and seed index stay traceable to that genotype. At about 20 plants an hour the AT003 matches the daily throughput of a breeding station or research group, with room to absorb peak season. For bulk commercial ginning, a high-capacity saw gin is the right tool.
Yes, cleaning is quick. The machine is designed for easy access, and the anti-wrapping structure prevents fibre building up around the roller shaft. A few minutes of brushing and wiping is enough to switch between varieties, which protects the integrity of your ginning data.
No. With all-bearing transmission and an integrated motor-and-frame design, vibration and noise are low. At 490 × 330 × 740 mm and 55 kg, it sits on or beside a standard laboratory bench and needs no dedicated machine room.
The roller is a serviceable wear part by design, with a long life under normal use. Replacement rollers, stationary knives and other spares are available from the manufacturer, and changing them requires only basic tools.
The clearance is the heart of roller ginning: seed must be blocked while fibre passes. Too wide and seed leaks into the lint; too narrow and fibre is damaged. The 1–2 mm setting can be fine-tuned to suit different seed sizes and varieties for the best ginning result.
The machine uses a 0.37 kW, 1440 r/min motor and runs on a standard single-phase supply (please refer to the technical documents supplied with the unit). No special electrical installation is required.
Yes. Roller ginning recovers both lint and seed almost completely, with minimal fibre loss and seed cracking. Lint output equals or exceeds the original lint percentage of the seed cotton, so the recovered fractions can be used directly for lint percentage, boll weight and seed index calculations.
Tell us your sample volume, seed-cotton type and destination country — we will confirm the configuration, lead time and delivered price.