Advanced Spiral Chute Separator
Sandreck’s spiral chute is the best equipment for mining and beneficiation, offering advantages including a small footprint, low water consumption, a simple structure, and ease of operation.
- Tungsten/tin ore roughing and concentrating
- Iron ore roughing and concentrating
- Gold tailings re-selection
- Quartz sand iron removal
Sandreck's Premium Spiral Gravity Separator
Sandreck spiral gravity separator is a sand-and-gravel re-selection device used in the mining industry. In addition to simple operation, our spiral chute also offers good processing performance, including stable ore dressing, clear ore separation, high processing capacity, high efficiency, and a high ore dressing enrichment ratio.
Sandreck Spiral Chute Advantages
Sandreck spiral chute adopts an imported fiberglass skeleton and advanced technology, improving acid and alkali corrosion resistance by 3 times.
The integrated intelligent tailings system of our spiral chute improves work efficiency, while the concentrate recovery rate exceeds 20%.
The slurry flow and velocity of the Sandreck spiral chute are dynamically balanced to ensure stable sorting, with a fluctuation rate of less than 5%.
The spiral chute trough cross-section is designed using fluid simulation to generate a short surface, achieving efficient sorting.
The pre-selection and selection of our spiral chute dual modules can be customized according to the different types of ore required.
The Sandreck spiral chute takes up little space, does not require a complex control system, and can be operated by a single machine, reducing energy consumption by 25%.
Application of Gravity Spiral Chute
Spiral chutes utilize gravity, centrifugal force, and fluid friction to separate light and heavy minerals, making them suitable for the gravity separation of fine and ultra-fine minerals (0.02–2 mm). They are primarily used to process placer and lode deposits containing rare and precious metals—such as tungsten, tin, gold, zircon, ilmenite, rutile, and monazite—as well as ferrous metal ores such as hematite, magnetite, and manganese, thereby effectively removing slimes and gangue impurities.
Additionally, spiral gravity separators are widely employed in recovering heavy minerals from coastal and riverbed sands, as well as in the secondary recovery of valuable metals from mine tailings, coal washing rejects, metal slag, and crushed electronic waste. They are extensively used in small-scale processing plants and mobile field equipment, serving as an ideal solution for roughing and scavenging operations on low-grade, fine-grained ores.
More About Our Company
- Technical Parameters
Model | BLL-2000 | BLL-1500 | BLL-1200 | BLL-900 | BLL-600 | BL-400 | |
| Spiral Outer Diameter (mm) | 2000 | 1500 | 1200 | 900 | 600 | 400 | |
| Pitch(mm) | 1200 | 900,675 | 900,720,540 | 675,540,405 | 450,360,270 | 240,180 | |
| Pitch to Diameter Ratio (pitch/diameter) | 0.6 | 0.48,036 | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.6,0.45 | |
| Lateral Inclination Angle (°) | 9° | 9° | 9° | 9° | 9° | 9° | |
| Number of Screw Heads Installed | 3 | 4 | 4 | 4 | 2 | 2 | |
| Feed Size(mm) | 2.00-0.04 | 0.8-0.037 | 0.3-0.03 | 0.3-0.03 | 0.2-0.02 | 02-0.02 | |
| Feed Concentration (%) | 30-55 | 30-55 | 25-55 | 25-55 | 25-55 | 25-55 | |
| Production Capacity (t/h) | 7-10 | 6-8 | 4-6 | 2-3 | 0.8-1.2 | 0.15-02 | |
| Dimensions | Length(mm) | 2120 | 1600 | 1360 | 1060 | 700 | 460 |
| Width(mm) | 2120 | 1600 | 1360 | 1060 | 700 | 460 | |
| Height(mm) | 5600 | 5300 | 5230 | 4000 | 2600 | 1500 | |
The spiral chute is mainly used for fine and micro-fine ores with particle sizes ranging from 0.02 mm to 2 mm, and is ideal for roughing and scavenging heavy minerals.
It can process tungsten, tin, gold, titanium, iron, zircon, hematite, manganese ore, and coastal placer minerals, and also recycle valuable metals from mine tailings and waste electronic slag.
Spiral chute occupies smaller floor space, consumes less water and power, needs no driving motor, and can process larger ore volume, while its separation precision is slightly lower than that of gravity shaking table.