Spiral Chute
DL / LL Series
Used for separating 0.3–0.02 mm fine material — placer gold, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphate, wolframite, tin, tantalum, niobium ores and other non-ferrous, rare and non-metallic minerals with a specific-gravity difference.
- Separation size 0.02–4 mm, covering coarse and fine duty
- Outside diameters 400–2000 mm across 6 models
- 1–4 threads with 3.5–5 turns
Key features
- Separation size 0.02–4 mm, covering coarse and fine duty
- Outside diameters 400–2000 mm across 6 models
- 1–4 threads with 3.5–5 turns
- Feed density 20–50%
- Simple structure, no power requirement, high throughput
- Small footprint, low water consumption, quick return on investment
Specifications
Spiral Chute — DL / LL Series
| Model | Outside diameter (mm) | Inside diameter (mm) | Pitch of screw (mm) | Rate | Gradient (°) | Number of threads | Number of turns | Max feed size (mm) | Mine density (%) | Capacity (L/h) | Area (m²) | Height (m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DL2000 | 2000 | 360 | 1200 | 0.6 | 9 | 2–4 | 3.5 | 0.04–4 | 20–40 | 15–45 | 5.7 | 6–8 |
| DL1500 | 1500 | 280 | 900 | 0.6 | 9 | 2–4 | 4 | 0.03–0.3 | 20–45 | 10–25 | 5.8 | 6–8 |
| LL1200 | 1200 | 220 | 720 / 540 | 0.6 / 0.4 | 9 | 2–4 | 4–5 | 0.03–0.3 | 30–50 | 4–6 | 2 | 5.23 |
| LL900 | 900 | 180 | 540 / 360 | 0.6 | 9 | 2–3 | 4–5 | 0.03–0.3 | 30–50 | 2–3 | 1.2 | 3.2–4.2 |
| LL600 | 600 | 120 | 390 / 360 | 0.4 | 9 | 1–2 | 4–5 | 0.02–0.2 | 30–50 | 0.8–12 | 0.5 | 2.6 |
| LL400 | 400 | 90 | 180 | 0.45 | 9 | 1–2 | 4–5 | 0.02–0.2 | 30–50 | 0.5–0.2 | 0.25 | 1.3 |
Selection note：The table above lists standard DL / LL parameters. Please provide mineral type, particle size and throughput when requesting a selection.
Applications
- Placer gold separation
- Ilmenite, chromite and zircon separation
- Rare metals: tungsten, tin, tantalum-niobium
- Monazite, rutile and similar minerals
- Tailings retreatment and gravity pre-concentration
Options & configuration
- Model chosen by outside diameter and throughput
- Thread count options: 1 / 2 / 3 / 4
- FRP or stainless-steel chute surface options
- Multiple units can be arranged in parallel as a separation bank
- Supporting equipment: ore feeder, distributor, concentrate launder
Need help choosing a model?
Tell us the material and the target capacity — we will recommend the model and the supporting equipment that fit.