FLG Series Mineral Processing Spiral Classifier
The single type classifier is available in two versions: traditional and advances versions. The advanced version is equipped with an automatic lifting device at the sand feedback end. It lowers the sand discharge to an appropriate position at the bottom of the tank wall for discharge. In this case, there is no need for a scoop therefore saving 1-1.5 kwh of energy while at the same time reducing the maintenance cost (no scoop maintenance). Additionally, wearing of the big and small gears is significantly reduced. The absence of the scoop also enables the mill to run smoothly, ensuring operation efficiency, reduced power consumption while maintaining high performance and milling capacity.
This product has a simple structure, facilitates reliable working conditions, and is convenient to use. In operation, the fine ore flows in the water while the coarse ore sinks in the water. This is made possible because different grains have different sedimentation rates and different gravity. This makes them drop at different speeds. Filtering can be carried out and the coarse materials are sent to the feeding mouth while the fine materials are discharged by spiral pushing through the pipe.
The base of the machine is made up of a channel steel material while the body has a welded steel plate. The spiral axle is made of cast iron in order to ensure durability. The spiral classifier is fitted with lifting equipment which may either be manually or electrically controlled.
Spiral classifier application: 1. Separation of fine particles and liquid from coarse particles 2. Separate light particles from heavy particles 3. Separation of the particles into a number of products graded according to size 4. Separation of liquid from solid particles
Technical Parameters of Spiral Classifier
| Type | Model | Spiral diameter (mm) | Rotary speed of spiral (r/min) | Tank | Capacity | Drive motor power (kw) | Lifting motor power (kw) | Weight (t) | |||
| Length (mm) | Width (mm) | Inclination (°) | Overflow (t/24h) | Sand return (t/24h) | |||||||
| High weir type with single helix | FLG-5 | 500 | 8.5-15.5 | 4500 | 555 | 14-18 | 32 | 143-261 | 1.1 | Manual | 1.6 |
| FLG-7 | 750 | 4.5-9.9 | 5500 | 830 | 14-18 | 65 | 256-564 | 3 | Manual | 2.9 | |
| FLG-10 | 1000 | 3.5-7.6 | 6500 | 1112 | 14-18 | 85 | 473-1026 | 5.5 | Manual | 4.4 | |
| FLG-12 | 1200 | 6 | 6500 | 1372 | 14-18 | 155 | 1170-1600 | 5.5 | 1.5 | 9.4 | |
| FLG-15 | 1500 | 2.5-6 | 8265 | 1664 | 14-18 | 235 | 1140-2740 | 7.5 | 2.2 | 11.7 | |
| FLG-20 | 2000 | 3.6-5.5 | 8400 | 2200 | 14-18 | 400 | 3890-5940 | 11/15 | 3 | 21.5 | |
| FLG-24 | 2400 | 3-5 | 10515 | 2900 | 14-18 | 580 | 6800 | 18.5 | 4 | 33.5 | |
| FLG-30 | 3000 | 2-4 | 12500 | 3200 | 14-18 | 890 | 11650 | 22 | 4 | 37 | |
| High weir type with double helix | 2FLG-12 | 1200 | 6 | 6500 | 2600 | 14-18 | 310 | 2340-3200 | 5.5×2 | 1.5×2 | 15.8 |
| 2FLG-15 | 1500 | 2.5-6 | 8265 | 3200 | 14-18 | 470 | 2800-5480 | 7.5×2 | 2.2×2 | 22.1 | |
| 2FLG-20 | 2000 | 3.6-5.5 | 8400 | 4280 | 14-18 | 800 | 7780-11880 | 15×2 | 3×2 | 36.4 | |
| 2FLG-24 | 2400 | 3.67 | 9130 | 5100 | 14-18 | 1160 | 13600 | 30 | 3×2 | 45.9 | |
| 2FLG-30 | 3000 | 3.2 | 12500 | 6300 | 14-18 | 1785 | 23300 | 45 | 4×2 | 73 | |
| Sinking type with single helix | FLG-10 | 1000 | 6-7.4 | 8400 | 1112 | 14-18 | 75 | 473-1026 | 5.5 | Manual | 6 |
| FLG-12 | 1200 | 5-7 | 8400 | 1372 | 14-18 | 120 | 1170-1630 | 7.5 | 2.2 | 11 | |
| FLG-15 | 1500 | 2.5-6 | 10500 | 1664 | 14-18 | 185 | 1140-2740 | 7.5 | 2.2 | 15.3 | |
| FLG-20 | 2000 | 3.6-5.5 | 12900 | 2200 | 14-18 | 320 | 3890-5940 | 11/15 | 3 | 29.1 | |
| FLG-24 | 2400 | 3.64 | 11130 | 2600 | 14-18 | 455 | 6800 | 18.5 | 4 | 37.3 | |
| FLG-30 | 3000 | 3.2 | 14300 | 3200 | 14-18 | 705 | 11650 | 30 | 4 | 43.5 | |
| Sinking type with double helix | 2FLG-12 | 1200 | 6 | 8400 | 2600 | 14-18 | 240 | 1770-2800 | 7.5×2 | 1.5×2 | 19.6 |
| 2FLG-15 | 1500 | 2.5-6 | 10500 | 3200 | 14-18 | 370 | 2280-5480 | 7.5×2 | 2.2×2 | 27.5 | |
| 2FLG-20 | 2000 | 3.6-5.5 | 12900 | 4280 | 14-18 | 800 | 7780-11880 | 11×2 | 3×2 | 50 | |
| 2FLG-24 | 2400 | 3.67 | 11130 | 5100 | 14-18 | 910 | 13700 | 37 | 3×2 | 65.3 | |
| 2FLG-30 | 3000 | 3.2 | 14300 | 6300 | 14-18 | 1410 | 23300 | 45 | 4×2 | 84.9 |
Manufacturer is a professional manufacturer of complete set mineral beneficiation equipments, stone crushing equipment, sand production equipments, coal and mineral powder equipment, rotary kiln and dryer equipment, products widely used in mineral processing, metallurgy, building materials, chemicals, electricity, petroleum, coal, transportation, fertilizer, gas industry etc.
In the last three decades, we always persist on the philosophy of "scientific and technological innovation, quality first, users first”, science and technology as guide, constantly develop new products, improve product quality and perfect after-sales service, our plant successfully applied ISO 9001:2008 quality certificate and manage to design 10 to 2,000 t/d mineral beneficiation equipment series production lines, our flotation machine is successfully applied to energy chemical group; products are welcomed by more than 20 provinces, municipalities and autonomous regions, and exported to south America, south Asia, Africa and other regions, products quality, technical supporting and after sale service are highly praised by users both home and abroad.
We welcome friends all over the world to visit our plant, persist on the mutual benefits and developments!
In order to give you a responsible quotation of Spiral classfier, you can inform us the following information: 1. What's the material you are going to deal with? 2. What's the granularity of the material? 3. What's the granularity of the final products are you going to achieve? 4. What's the producing capacity per hour?




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Step 1
Payment and order readiness
Minimum order: 1 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
25 days
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Step 3
Packaging and dispatch
Packaging details are available on request.
Final packing, freight, and delivery dates are confirmed before dispatch.
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