High Weir Spiral Classifier

Introduction

Parameters

360° Panorama

Working Principle

Features

Detail

Introduction

High Weir Spiral Classifier is essential equipment in mineral processing industry, designed for pre-classification and inspection classification in grinding circuits. It features a high weir structure that allows overflow to carry fine particles while coarse materials sink and are returned to mill for further grinding. This equipment consists of a U-shaped tank, spiral screw, lifting mechanism, and transmission system. Spiral rotates continuously, promoting movement of coarse particles to discharge outlet. High weir height ensures clean separation of fine and coarse particles. It is widely used in concentrators and washing plants for metal ores, non-metal ores, and coal, offering high efficiency, energy-saving performance, and strong adaptability to various conditions.

Technical Parameters

Model	Spiral speed (r/min)	Return sand volume (t/d)	Overflow handling capacity (t/d)	Spiral diameter (mm)	Spiral length (mm)	Slope of sink	Drive motor model	Power (kw)	Lifting motor model	Power (kw)	Weight (kg)
FLG-300	7.7	30-80	10-30	Φ300	3900	14-18	Y100L1-4	2.2	manual	–	668
FLG-500	8	145-260	21-75	Φ500	4390		Y112M-6	2.2	manual	–	1600
FLG-750	7.8	100-455	31-165	Φ750	5500		Y132S-6	3	manual	–	2716
FLG-1000	6.7	473-1026	85	Φ1000	6556		Y132M2-6	5.5	manual	–	4000
FLG-1200	5,6,7	1145-1600	150	Φ1200	6500		Y132M2-6	5.5	Y90L-4	1.5	7943
FLG-1500	2.5,4,6	1140-2730	235	Φ1500	8265		Y160M-6	7.5	Y100L1-4	2.2	11827
FLG-2000	3.6,5.5	3240-5940	400	Φ2000	8700		Y160L-6/4	11,15	Y100L2-4	3	20814
FLG-2400	3.6	6800	580	Φ2400	9130		Y200L2-6	22	Y112M-4	4	24194
FLG-3000	3.2	11625	890	Φ3000	12500		Y200L-4	30	Y112M-4	4	42188

Model	Spiral speed (r/min)	Return sand volume (t/d)	Overflow handling capacity (t/d)	Spiral diameter (mm)	Spiral length (mm)	Slope of sink	Drive motor model	Power (kw)	Lifting motor model	Power (kw)	Weight (kg)
2FLG-1200	5,6,7	2290-3200	310	Φ1200	6500	14-18	Y132M2-6	5.5*2	Y90L1-4	1.5*2	15840
2FLG-1500	2.5,4,6	2240-5360	460	Φ2500	8230		Y160M-6	7.5*2	Y100L1-4	2.2*2	22903
2FLG-2000	3.6,5.5	6400-10800	750	Φ2000	8400		Y160L-4	15*2	Y100L2-4	3*2	34621
2FLG-2400	3.63	13600	1160	Φ2400	9130		Y200L2-6	22*2	Y112M-4	4*2	42460
2FLG-3000	3.2	23300	1785	Φ3000	12500		Y200L-4	30*2	Y112M-4	4*2	73030

360° panoramic view of the product

No pictures

Working Principle

High Weir Spiral Classifier works on principle of sedimentation. When mixed with water, ore pulp enters inclined tank of classifier. Due to different settling speeds of solid particles, fine particles float to top and overflow with water, while coarse particles settle at bottom. A spiral screw rotates continuously, lifting settled coarse particles to discharge port for recirculation or further processing. Height of weir ensures efficient separation, and adjustable speed of spiral allows flexible operation depending on material properties.

Features

Application

Granularity Controllable

The area of the settlement area is large, the height of the weir can be adjusted, the particle size can be adjusted, and the classification fineness is high

Easy To Operate

High degree of automation, using frequency conversion control technology

Low Failure Rate

Automatic lifting device, no dust pollution

Durable Wear Parts

The base is made of high-strength steel, the body is welded with steel plates, and special graded parts can be equipped according to requirements

dETAIL

Product Detail Show

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High Weir Spiral Classifier