Submerged Spiral Classifier



Classifier—the spiral of overflow end is completely immersed below liquid level

【 Capacity 】:

50~1410 t/d


An automatic elevating apparatus is added to the discharge opening. The scoop in ball mill is eliminated bringing more stable operation.


Submerged spiral classifier with the spiral of overflow end completely immersed below liquid level is applied in classifying ore with particle size 0.15~0.07mm

【Product Structure】

structure-Submerged Spiral Classifierstructure-Submerged Spiral Classifier

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Spiral classifier working principle: Fine ore pulps are fed into water tank through feeding opening located in the center of settling zone. Beneath the inclined water tank is the ore pulp classification zone where ore pulps are stirred by low-speeded impellers. Fine ore particles are lifted up and then spilled out the overflow opening; coarse ore particles precipitate down to tank bottom and are discharged via discharge opening.

【Technical Parameters】

Type Model Rotating Speed of Spiral (r/min) Capacity of Sand Return (t/d) Capacity of Overflow (t/d) Spiral Diameter (mm) Spiral Length (mm) Slope of Water Tank Drive Motor Model Drive Motor Power (kW) Lifting Motor Model Lifting Motor Power (kW) Weight (kg)
SubmergedSingle Spiral Classifier FLC-1000 2.5~7.4 160~700 50-260 Φ1000 8397 14 ~18 Y132M2-6 5.5 Manual driven 5225
FLC-1200 5~7 1150~1640 120 Φ1200 8400 Y160M-6 7.5 Y90L-4 1.5 9583
FLC-1500 2.5 ~6 1140~2740 185 Φ1500 10500 Y100L1-4 2.2 14226
FLC-2000 3.6~5.5 3240~5940 320 Φ2000 13000 Y160L-4 15 Y100L2-4 3 27753
FLC-2400 3.6 6800 455 Φ2400 14130 Y200L1-6 18.5 Y112M-4 4 32467
FLC-3000 3.2 11650 705 Φ3000 14300 Y200L-4 30 Y112M-4 4 43500
SubmergedDouble SpiralsClassifier 2FLC -1200 3.8 ~6 1770~2800 240 Φ1200 8040 Y160M-6 7.5X2 Y100L1-4 2.2X2 19610
2FLC-1500 2.5 ~6 2280~5480 370 Φ1500 10500 27450
2FLC-2000 3.6,5.5 7780~11880 640 Φ2000 12900 Y200L2-6, Y200L-4 22;30 Y100L2-4 3.0X2 50621
2FLC-2400 3.67 13700 910 Φ2400 14130 Y25S-4 37 Y112M-4 4.0X2 65283
2FLC-3000 3.2 23300 1410 Φ3000 14300 Y225M-4 45 Y112M-4 4.0X2 84900

【Successful case】

High Weir Spiral Classifier

Tanzania is located in southern Africa and is subordinate savanna climate. The air humidity is bigger, a lot of equipment are eliminated due to the rust. In a gold processing plant in Tanzania, the demand of ore separation is not particularly big, but the ore particle size is much more strict, Xinhai chose the submerged spiral classifier for customer according to the geographical location and customer needs, the hierarchic flooding size is equal or lesser than 0.015 mm, the classification results meets customer demand, recovery rate increase by 11%.