Spiral Separator
Spiral separator is widely applied to mineral separating of size 0.3 – 0.02 mm, such as ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphate, tungsten ore, tin, tantalum, niobium ore and other non-ferrous metals, precious metals and non-metallic minerals.
Machine Details Show
Spiral Separator Working Prinicple
A spiral chute works under the force of water flow, gravity, inertial centrifuge, and friction. The slurry is pumped to the top of the spiral, and it enters a feed distributor that evenly distributes the feed to each spiral concentrator. The design and shape of the spiral make it work when combined with gravitational acceleration. As the slurry travels the spiraling path down the spiral, mineral grains settle and start sorting according to size, density, and to a lesser extent shape. Low-density particles are carried with the bulk of the water toward the outside of the spiral, while particles with the greatest density migrate toward the inside of the spiral.
Main Features
- Reasonable structure and small occupation area;
2. High recovery, high efficiency, and precise separation;
3. Light in weight, rust and corrosion-resistant;
4. Simple installation and Minimal maintenance requirements;
5. Low operating cost and long operating life;
6. Reliable running with minimal operator attention;
7. Strong adaptability to fluctuation of feeding amount, density, size, and grade.
Spiral Chute Technical Data
| Model | 5LL-1500 | 5LL-1200 | 5LL-900 | 5LL-600 | 5LL-400 |
|---|---|---|---|---|---|
| Outside dia（mm） | 1500 | 1200 | 900 | 600 | 400 |
| pitch（mm） | 540,720 | 900,720,540 | 675,540,405 | 450,360,270 | 240,180 |
| Pitch Dia Ratio | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.6,0.45 |
| Lateral slope | 9° | 9° | 9° | 9° | 9° |
Maximum starts per column | 4-2 | 4-2 | 4-2 | 3 | 2 |
| Feeding Size(mm) | 0.3-0.03 | 0.3-0.03 | 0.3-0.03 | 0.2-0.02 | 0.2-0.02 |
| Feeding Density(%) | 25-55 | 25-55 | 25-55 | 25-55 | 25-55 |
| Capacity（T/H） | 8-6 | 4-6 | 2-3 | 0.8-1.2 | 0.15-0.2 |
| Dimension (mm) | 1560*1560*5230 | 1360*1360*5230 | 1060*1060*4000 | 700*700*2600 | 460*460*1500 |
| Weight (Kg) | 800 | 600 | 400 | 150 | 50 |
Our Machines In Clients’ Mine Site
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Frequently Asked Questions
Q: What is the smallest gold particle size this concentrator can recover?
A: It can recover gold particles as fine as 0.004mm, with a recovery rate of approximately 97% for this size fraction.
Q: How often do I need to clean out the concentrate?
A: The cleaning-up cycle is typically 1–4 hours for vein gold and 2–6 hours for placer gold, depending on the grade of your ore.
Q: Does this machine require chemicals?
A: No. The centrifugal concentrator uses only water and electricity. It is a completely physical separation process with zero chemical pollution.
Q: Can I use this concentrator for tailings re-processing?
A: Yes. It is widely used to recover fine gold from old tailings, grinding circuit discharges, and flotation concentrates where fine gold has not been fully captured.
Why Choose Hengcheng for Your Gold Recovery Project?
With over 25 years of experience in mineral processing equipment manufacturing, we specialize in designing customized gravity separation circuits for alluvial gold, rock gold, and complex ores. Furthermore, we provide a full package of services—from engineering consultation and ore testing to on-site installation, commissioning, and personal training. Therefore, you can rely on us from the very beginning of your project to the final operation.
