
FRP Spiral Chute
Unpowered fine gravity separation for mineral sands, iron, chrome, tin and tungsten.
Capacity 0.15–10 t/hFine particles separated cleanly by density
The 6-S shaking table is one of the most widely used gravity separators. Asymmetric reciprocating motion of the inclined deck and a thin film of wash water separate particles by density into concentrate, middlings and tailings, with clearly visible mineral bands that are easy to adjust.
| Parameter | 6-S 7.6 coarse-sand deck | 6-S 7.6 fine-sand deck | 6-S 7.6 slime deck | 6-S 4.08 | 6-S 1.95 | 6-S 0.5 |
|---|---|---|---|---|---|---|
| Deck area (m²) | 7.6 | 7.6 | 7.6 | 4.08 | 1.95 | 0.5 |
| Deck length (mm) | 4500 | 4500 | 4500 | 3000 | 2100 | 1100 |
| Width, drive end (mm) | 1850 | 1850 | 1850 | 1320 | 1050 | 500 |
| Width, concentrate end (mm) | 1550 | 1550 | 1550 | 1100 | 850 | 430 |
| Max. feed size (mm) | 2 | 0.5 | 0.074 | 2–0.1 | 2–0.074 | 2–0.074 |
| Capacity (t/h) | 1–1.2 | 0.5–1 | 0.3–0.5 | 0.4–1.5 | 0.3–0.8 | 0.05–0.2 |
| Feed density (% solids) | 20–30 | 18–25 | 15–20 | 10–30 | 10–30 | 10–30 |
| Stroke (mm) | 16–22 | 11–16 | 8–16 | 6–30 | 12–28 | 9–17 |
| Strokes per minute | 220 | 250 | 280 | 210–320 | 250–450 | 280–460 |
| Water consumption (t/h) | 0.7–1 | 0.4–0.7 | 0.4–0.7 | 0.3–1.5 | 0.2–1 | 0.1–0.5 |
| Motor power (kW) | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
Data from the product catalogue; may be adjusted to the ore. Final figures are confirmed in the quotation.
Slurry is fed at the upper side of the deck while wash water flows across it. The deck moves forward slowly and returns quickly: heavy minerals travel along the riffles to the concentrate end, while light minerals are washed to the tailings side, forming a fan of mineral bands.

Unpowered fine gravity separation for mineral sands, iron, chrome, tin and tungsten.
Capacity 0.15–10 t/h
Roughing of coarser heavy minerals; common for placer gold, alluvial tin and tungsten.
Capacity 1.5–25 t/h
Centrifugal force recovers fine gold and fine heavy minerals.
Capacity ≤80 t/hOur engineers recommend a flowsheet and equipment set based on your ore.