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Spiral Grader:, 1 simple structure, 2 reliable working conditions, 3 exported over 30 countries - details see: https://www.machineto.com/hot-selling-spiral-grader-with-ce-certified-used-in-ore-dressing-plant-10315091

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Spiral grader with CE certified

Spiral grader is the main equipment in mineral dressing plants, used to grade solid particle of different density and speed in liquids. With grinders, it can form a closed circuit, which is used to do the pre-grading and check grading, and granule declining and dehydrating in ore washing. It's divided to single spiral and double spirals; According the difference of spiral's depth in overflow surface, it's divided to high weir type and sinking type.
Check the bolt of each component before using, make clear its degree of tightness, lift the screw shaft, run under zero load, shift the lifting handle, drop down slowly, make the deposit in sink active, finally work, and then the bearing shafts in both axle heads shall be filled up with grease oil regularly.

Application of the mineral spiral grader Spiral graderis widely used in classifying:

lClassify ore sand and fine sludge in gravity ore separation plant

lForm a closed circulation with the ball grinder for ore-sand separation in the ore

separation plant

lRemove sludge/water at the ore separation process

lClassify the ore pulp according to granularity during the metal ore separation process

Working Principle of themineral spiral grader Spiral grader is consists of water channel, gearing, spiral department, lifting gear, lower support, ore discharge valve. Different solid granularities have different gravity and thus have different dropping speed. The fine ore granularities floating in the water will overflow and the big ones will sink to the bottom and discharge from the upper part by spiral pushing. It can filter the granularities from the machine and then spin the rough particles to charging part by spiral vane and discharge the fine granularities from the overflow pipe. The base of the machine adopts a channel steel and the body adopts welded steel plate. The water inlet of spiral axle and axle head adopt pig iron cover for wear proofing and long life operation. The lifting equipment has two types, manual control and electric control.

Advantages and performances of themineral spiral grader Spiral grader has the following advantages:

lSimple structure, reliable working conditions and convenient operation.

lLight in weight, rust and corrosion resistant

lHigh recovery, high efficiency, and precise separation

lStrong adaptability to fluctuation of feeding amount, density, size and grade

lSimple installation and Minimal maintenance requirements.

lLow operating cost and long operating life

Mineral spiral grader in our workshop

Mineral spiral grader in our customer site

Technical Parameters of themineral spiral grader

Kind	Type	Spiral Diameter (mm)	Water trough length (mm)	Spiral rotation speed(r/min)	Capacity(t/d)		Motor Power(kw)
					Sand return	Overflow	Drive	Hoist
High weir type	FG7.5	750	5500	6~10	340~570	65	3.0	Manua
	FG10	1000	6500	5.0~8.0	675~1080	110	5.5	Manua
	FG12	1200	6500	5.0~8.0	1170~1870	155	5.5	1.5
	FG15	1500	8400	4.0~6.0	1830~2740	235	7.5	2.2
	FG20	2000	8400	4.0~6.0	3240~5400	400	11	2.8
	FG24	1400	9210	3.6	4650~7450	580	15	3.0
	FG30	3000	12500	3.2	11650	890	22	4.0
	2FG12	1200	6500	5.0~8.0	2340~3740	310	5.5×2	1.5×2
	2FG15	1500	78400	4~6.0	3660~5480	470	7.5×2	1.5×2
	2FG20	2000	8400	3.0~5.5	7780~11880	800	11×2	2.8×2
	2FG24	2400	9210	3.6	13600	1160	15×2	3×2
	2FG30	3000	12500	3.2	14600~23400	1785	45	4×2
Sinking type	FC12	1200	8400	5~8	1170~1870	120	7.5	2.2
	FC15	1500	10500	4.0~6.0	1830~2740	185	7.5	2.2
	FC20	2000	12900	2.0~5.5	3895~5940	320	15	2.8
	FC24	2400	14200	2.5~4.0	4650~7450	455	18.5	4
	FC30	3000	14300	3.2	11625	705	30	4
	2FC15	1500	10500	4.0~6.0	2280~5480	370	7.5×2	1.5×2
	2FC20	2000	12900	3.0~5.5	6480~11800	640	11×2	3×2
	2FC24	2400	14200	3.67	9300~14900	910	18.5×2	4×2
	2FC30	3000	14300	3.2	23300	1400	45	4×2

Our after-sale service

Starting on the day of the received products, within a year, if there is quality problem can free replacement new products, if because of the improper use of your product damaged, we will solve the problem for you through online video.

About us lHenan Qunying Machinery Manufacture Co., Ltd.was founded in 1961, which is specialized in metallurgy, mining, building materials, chemicals, coal and electric power, providing crushers, ball mills, processing equipment, pelleting and sintering equipment, cement and building material equipment, coal washing equipment, mineral equipment and hoisting equipment.

lOur company has passed ISO quality certification,CE, quality system certificate and are also AAA grade reputable enterprise

lOur equipments have been exported to more than 100 countries all around the world andgain a good reputation both at home and abroad. We are an enterprise with good faith in China and foreign and the focus among industrial enterprises in China.

Certification of our company

Plants of our company

Production equipment of our company

Foreign customers of our company

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