1. Simple structure 2. Large air-absorption capacity 3. Easy maintenance 4. Huge capacity 5. ISO9001-2008

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1.Classifier Application:Spiral classifiers are widely used for distributing ore in the close circuit with ball mill, grading ore and fine slit in the gravity mill, grading granularity in the flow of metal ore-dressing and desliming and dehydrating in the washing.

2.Applicable scope:Classifier widely used in mineral processing plant to match with the ball mill and form a closed-circuit circulation to process mining sand. or used in gravity mine-selection plant for classifying sand and mine mud, and grading sand according to the particle size , disliming ,dewatering in the mine washing process. this machine has simple structure, reliable operation, convenient operation, etc. the classifier is a kind of classifying machine that adopt the principle of settling speed difference according to different material sizes and specific gravity. fine particles floating in the water overflow out ;the coarse ore grain sinks to the bottom of the chase which will be pulled to the upper by the spiral and discharging out.

3.Working Principle and Features:Spiral classifier is a kind of classifying machine that classifies big and small mineral granules. It works according to the fact that different granules (with various sizes and weight) sink at different speeds in liquids. It can filter powders grinded from mill and rotate the coarse materials to the feeding hole of the mill and discharge filtered fine materials though the overflow pipe.

4.Specifications of Spiral Classifier

Model	Spiral diameter(mm)	Spiral rotation speed(r/min)	Trough length(mm)	Motor power(kw)		Capacity(t/d)		Weight(t)
				For driving	For lifting	Return sand	Overflow
FG-7.5	750	6-10	5500	3.0	Manual	340-570	65	2.7
FG-10	1000	5-8	6500	5.5	Manual	675-1080	110	4.43
FG-12	1200	5-8	6500	5.5	1.5	1170-1870	155	8.7
FG-15	1500	4-6	8400	7.5	2.2	1830-2740	235	12.5
FG-20	2000	4-6	8400	11	2.8	3240-5400	400	20.5
FG-24	2400	3.6	9210	15	3.0	4650-7450	580	25.6
FG-30	3000	3.2	1250	22	4.0	11625	890	37.7
2FG-12	1200	5-8	6500	5.5×2	1.5×2	2340-3740	310	14.0
2FG-15	1500	4-6	8400	7.5×2	1.5×2	3660-5480	470	21.1
2FG-20	2000	3-5.5	8400	11×2	2.8×2	7780-11880	800	36.5
2FG-24	2400	3.6	9210	15×2	3×2	13600	1160	46.8
2FG-30	3000	2-3.2	12500	22×2	4×2	14600-23400	1785	73.0

Single Spiral Classifier For Mineral Processing