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spiral classifier for mineral processing Descriptions We produce high weir type, single and double spiral, and immersed single and double spiral classifiers. Our spiral classifiers are widely used in the distribution of ore in closed circuits with ball mills, grading ore and fine slit in gravity mills, grading granularity and flow of metal ore-dressing, and de-sliming and dehydrating in washing. This product features simple structure, reliable working conditions and convenient operation. Because different grains have different specific gravity and sedimentation rates in liquid, this product allows the fine ore to flow in the water, while coarse ore sinks to the bottom. This classifier can filter materials and send coarse materials to the feeding mouth and discharge fine materials from the pipe. The seat of the machine features channel steel material, while the body is armor plated and the spiral axle is made of cast iron for durability. The machine's lifting equipment can be used manually or electronically. Technical Specifications ModelSpiral diameter (mm)Spiral rotation speed (r/min)Trough length (mm<=)Motor power(kw<=)Dimensions(mm<=)Weight (t)<=For drivingFor liftingLengthWidthHeightFG-3 300 12-30 3000 1.1 --- 3850 490 1140 0.7 FG-5 500 8-12.5 4500 1.1 --- 5430 680 1480 1.6 FG-7 750 6-10 5500 3 --- 6270 980 1820 2.7 FG-10 1000 5-8 6500 5.5 --- 7590 1240 2380 4 FC-10 8400 7.5 --- 9600 1240 2680 6 FG-12 1200 4-6 6500 7.5 2.2 8180 1570 3110 8.5 FC-12 8400 7.5 2.2 10370 1540 3920 11 2FG-12 6500 15 4.4 8230 2790 3110 15.8 2FC-12 8400 15 4.4 10370 2790 3920 17.6 FG-15 1500 4-6 8300 7.5 2.2 10410 1880 4080 12.5 FC-15 10500 7.5 2.2 12670 1820 4890 16.8 2FG-15 8300 15 4.4 10410 3390 4080 22.1 2FC-15 10500 15 4.4 12670 3370 4890 30.7 FG-20 2000 3.6-5.5 8400 11-15 3 10790 2530 4490 20.5 FC-20 12900 11-15 3 15610 2530 5340 28.5 2FG-20 8400 22-30 6 11000 4600 4490 35.5 2FC-20 12900 22-30 6 15760 4600 5640 48.7 FG-24 2400 3.67 9130 15 3 11650 2910 4970 25.7 FC-24 14130 18.5 4 16580 2930 7190 41 2FG-24 9130 30 6 12710 5430 5690 45.8 2FC-24 14130 37 8 17710 5430 8000 67.9 2FG-30 3000 3.2 12500 40 8 16020 6640 6350 73 2FC-30 14300 17091 8680 84.8