2-Ring High-Gradient Separator: Ore-Testing Guide

The double-ring pulsating high-gradient magnetic separator is a highly efficient magnetic separation device specifically designed for the separation of weakly magnetic minerals and the purification and impurity removal of non-metallic materials. Its separation ring diameter ranges from 1000mm to 2000mm, handling capacity is 4-55t/h, rated excitation power is 25-72kW, rated background field strength is 1.0T, feed particle size is 0.01-2mm, matching motor power is 4.5-16.5kW, and machine weight is 8,000-51,000kg. This equipment is widely used in ferrous metals (recovery of specular hematite, hematite, limonite, magnetite, ilmenite, manganese ore, etc.), non-ferrous metals (separation of wolframite, garnet, and other minerals), rare metals (recovery of tantalite-columbite, lepidolite, monazite, xenotime, columbite, and other minerals), as well as non-metallic industries (purification and impurity removal of quartz, feldspar, kaolin, refractory materials, etc.). Why choose the double-ring pulsating high-gradient magnetic separator? Because it adopts a double-ring structure and pulsating mechanism, it can effectively solve the problems of low recovery and poor separation effect of traditional magnetic separators when processing fine weakly magnetic minerals; the high-gradient magnetic media generates an extremely high magnetic field gradient, which can effectively capture fine weakly magnetic minerals; the pulsating action can effectively eliminate the mechanical embedding of non-magnetic minerals, improving the concentrate grade; the equipment has a large processing capacity, strong adaptability, and stable operation, meeting the needs of mineral processing plants and purification plants of different scales. This equipment is mainly used for the recovery and separation of weakly magnetic minerals, purification and impurity removal of non-metallic minerals, purification of refractory materials, and recovery of rare metal minerals. The target users of this equipment include mineral processing plants, mining enterprises, non-metallic mineral processing enterprises, refractory material manufacturing enterprises, rare metal recycling companies, mineral processing equipment EPC contractors, equipment dealers and inventory holders, and overseas mining project purchasers. When should one choose or replace a double-ring pulsating high-gradient magnetic separator? When there is a need to recover or separate weakly magnetic minerals (such as hematite, limonite, ilmenite, wolframite, etc.); when purification and impurity removal of quartz, feldspar, kaolin, refractory materials, etc., is required; when the old magnetic separator has low recovery, poor concentrate grade, or insufficient processing capacity; when a new mineral processing plant or purification plant needs to install efficient magnetic separation equipment. When export projects require adaptation to overseas voltage and high-efficiency magnetic separation conditions, priority should be given to selecting the double-ring pulsating high-gradient magnetic separator. How to choose a double-ring pulsating high-gradient magnetic separator? Step 1: Confirm the material properties and select the corresponding model based on the material type, magnetic strength, and feed particle size (0.01-2mm); Step 2: Confirm the processing capacity and select the corresponding model within the range of 4-55t/h according to production line requirements; Step 3: Confirm the diameter of the separation ring and choose 1000-2000mm based on processing capacity and site space; Step 4: Confirm the rated excitation power and select 25-72kW based on the material's magnetic properties and processing capacity; Step 5: Confirm the rated background field strength and set it at 1.0T according to separation requirements; Step 6: Confirm the matching motor power and choose 4.5-16.5kW according to the separation ring specifications; Step 7: Confirm the installation foundation, which needs to be installed on a solid concrete foundation with anchor bolts; Step 8: Confirm environmental protection and automation configuration, optionally equipped with a dust removal system and central control system.

Double-Ring Pulsating High-Gradient Magnetic Separator Models and Parameter Table

Model	Separation Ring Diameter (mm)	Rated Excitation Power (kW)	Processing Capacity (t/h)	Rated Background Field Strength (T)	Feed Particle Size (mm)	Matching Motor Power (kW)	Machine Weight (kg)
SSS-1-1000	1000	25	4-10	1.0	0.01-2	4.5	8000
SSS-1-1200	1200	35	10-20	1.0	0.01-2	6.6	12000
SSS-1-1500	1500	45	20-35	1.0	0.01-2	8.4	21000
SSS-1-1750	1750	63	30-50	1.0	0.01-2	13.5	38000
SSS-1-2000	2000	72	40-55	1.0	0.01-2	16.5	51000

General Technical Parameter Table

Parameter	Specification
Series	SSS-1
Type	Double-Ring Pulsating High-Gradient Magnetic Separator
Separation Ring Diameter	1000–2000 mm
Rated Excitation Power	25–72 kW
Processing Capacity	4–55 t/h
Rated Background Field Strength	1.0 T
Feed Particle Size	0.01–2 mm
Matching Motor Power	4.5–16.5 kW
Machine Weight	8000–51000 kg
Core Advantages	Double-ring structure, pulsating mechanism, high-gradient magnetic medium, high recovery rate, good concentrate grade, large processing capacity
Applicable Scenarios	Recovery and separation of ferrous metals, non-ferrous metals, and rare metals; purification and impurity removal of non-metallic minerals

Dimension drawings and key dimensions

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Material table

Component	Standard material	Optional material	Description
Sorting ring	Stainless steel	Wear-resistant alloy	Supports magnetic medium, needs corrosion and wear resistance
Magnetic medium	Magnetic-conducting stainless steel brush	Special alloy	Generates high magnetic field gradient to capture fine weakly magnetic minerals
Excitation coil	Copper wire / Aluminum wire	Superconducting material	Generates background magnetic field, requires good heat dissipation
Iron yoke / Frame	Carbon steel	Stainless steel	Forms the magnetic circuit, supports the equipment's own weight
Pulsating mechanism	Carbon steel / Stainless steel	Wear-resistant alloy	Generates pulsating water flow to eliminate mechanical impurities
Drive shaft	40Cr / 45# steel	Alloy steel	Quenched and tempered, ensures stable transmission
Bearing	Self-aligning roller bearing	Double-row cylindrical roller bearing	Supports heavy load and impact
Motor	Motor with full copper coil	Explosion-proof motor	Standard three-phase asynchronous motor
Control Box	Carbon steel / Stainless steel	Rainproof and Dustproof Type	Optional Variable Frequency Speed Regulation

Installation Method

The double-ring pulsating high-gradient magnetic separator must be installed on a solid concrete foundation, which should withstand the equipment's own weight (up to 51 tons) and dynamic loads during operation; during installation, ensure the foundation is level and anchor bolts are tightened according to torque requirements; after positioning the equipment, adjust the level to ensure the separation ring is parallel to the drive shaft; the magnetizing coil must be correctly wired to ensure the cooling system operates normally; the pulsating mechanism needs to be connected to a water source and piping to ensure a stable pulsating water flow; the magnetic medium should be loaded according to design requirements to ensure a uniform magnetic field gradient; after installation, conduct a no-load test run to check whether the separation ring rotates smoothly, with no abnormal vibration or noise, and confirm the magnetizing coil and pulsating mechanism operate normally; during a load test run, gradually increase the feed rate, observe the separation effect and motor current, ensuring it does not exceed the rated current; a dust removal system should be equipped to reduce dust pollution; a central control system can be equipped for online monitoring and automatic control.

Application Scenarios Table

Industry	Application	Recommended Configuration	Key Requirements
Ferrous Metals	Recovery of pseudobrookite, hematite, limonite, siderite, ilmenite, and manganese ore	SSS-1-1000–SSS-1-2000	High recovery rate, good concentrate grade, large processing capacity
Non-Ferrous Metals	Separation of wolframite, garnet, and other minerals	SSS-1-1000–SSS-1-1750	Good separation effect, strong adaptability
Rare Metals	Recovery of tantalite-columbite, lepidolite, monazite, phosphor-yttrium ore, and tantalum ore	SSS-1-1200–SSS-1-2000	High recovery rate, large processing capacity
Non-Metallic Minerals	Purification and impurity removal of quartz, feldspar, kaolin, and refractory materials	SSS-1-1000–SSS-1-1750	Good impurity removal effect, no damage to material
Refractory Materials	Purification and impurity removal of refractory materials	SSS-1-1000–SSS-1-1500	Good iron removal effect, improves product purity

Note

The dual upright ring pulsating high-gradient magnetic separator is suitable for the recovery and separation of weakly magnetic minerals as well as the purification and impurity removal of non-metallic minerals. The diameter of the sorting ring is 1000–2000 mm, processing capacity is 4–55 t/h, the rated background magnetic field strength is 1.0 T, and the feed particle size is 0.01–2 mm. The maximum weight of the equipment can reach 51,000 kg, and the foundation load-bearing capacity must be ensured to meet requirements. In explosive environments, an explosion-proof motor should be selected. For highly abrasive materials, it is recommended to use wear-resistant alloy sorting rings and magnetic media.

## Technical FAQ

1. What is a dual upright ring pulsating high-gradient magnetic separator?

The dual upright ring pulsating high-gradient magnetic separator is a high-efficiency magnetic separation device specially designed for the sorting of weakly magnetic minerals and the purification and impurity removal of non-metallic materials. It adopts a dual upright ring structure and pulsating mechanism, effectively separating fine weakly magnetic mineral particles.

2. What is the working principle of a dual upright ring pulsating high-gradient magnetic separator?

The device generates a background magnetic field through excitation coils. The magnetic media produces a high-gradient magnetic field in the magnetic field, capturing fine weakly magnetic mineral particles. The pulsating mechanism generates a pulsating water flow to eliminate mechanical inclusions of non-magnetic minerals. The rotating sorting ring carries the adsorbed magnetic minerals to a non-magnetic area for discharge, achieving the separation of magnetic and non-magnetic minerals.

3. What models are available for the dual upright ring pulsating high-gradient magnetic separator?

The models of the dual upright ring pulsating high-gradient magnetic separator are SSS-1-1000, SSS-1-1200, SSS-1-1500, SSS-1-1750, and SSS-1-2000.

4. What is the sorting ring diameter of the dual upright ring pulsating high-gradient magnetic separator?

The diameter of the sorting ring is 1000–2000 mm, varying according to the model.

5. What is the processing capacity of the dual upright ring pulsating high-gradient magnetic separator?

The processing capacity is 4–55 t/h, varying according to the model. SSS-1-1000 is 4–10 t/h, and SSS-1-2000 is 40–55 t/h.

6. What is the rated excitation power of the dual upright ring pulsating high-gradient magnetic separator?

The rated excitation power is 25–72 kW, varying according to the model.

7. What is the rated background magnetic field strength of the dual upright ring pulsating high-gradient magnetic separator?

Rated background magnetic field strength: 1.0T.

8. What is the feed particle size of the double-ring pulsating high-gradient magnetic separator?

Feed particle size: 0.01-2mm, suitable for separating fine weakly magnetic minerals.

9. What is the motor power of the double-ring pulsating high-gradient magnetic separator?

Motor power: 4.5-16.5kW, depending on the model.

10. What is the machine weight of the double-ring pulsating high-gradient magnetic separator?

Machine weight: 8,000-51,000kg, depending on the model. SSS-1-1000 weighs 8,000kg, and SSS-1-2000 weighs 51,000kg.

11. What materials is the double-ring pulsating high-gradient magnetic separator suitable for?

Suitable for the purification and impurity removal of ferrous metals (pseudo-hematite, hematite, limonite, siderite, ilmenite, manganese ore), non-ferrous metals (wolframite, garnet), rare metals (tantalum-niobium ore, spodumene, monazite, xenotime, columbite), and non-metals (quartz, feldspar, kaolin, refractory materials).

12. What are the wear parts of the double-ring pulsating high-gradient magnetic separator?

Sorting ring, magnetic medium, excitation coil, pulsating mechanism, bearings, etc. Among them, the magnetic medium and sorting ring are the core wear parts. It is recommended to use magnetic stainless steel filaments or wear-resistant alloy materials.

13. Does the double-ring pulsating high-gradient magnetic separator need a foundation?

Yes. It needs to be installed on a solid concrete foundation capable of supporting the equipment's weight (up to 51 tons) and operational dynamic loads, with anchor bolts for fixation.

14. What are common faults of the double-ring pulsating high-gradient magnetic separator?

Magnetic medium blockage (feed particle size too large or pulp concentration too high), excitation coil overheating (poor cooling or overload), abnormal pulsating mechanism (insufficient water pressure or pipe blockage), sorting ring wear (high material abrasiveness), bearing overheating (poor lubrication or overload).

15. What is the difference between the double-ring pulsating high-gradient magnetic separator and ordinary magnetic separators?

The double-stator-ring pulsating high-gradient magnetic separator adopts a double-stator-ring structure and pulsating mechanism. The magnetic medium generates a high-gradient magnetic field, which can effectively capture fine weakly magnetic minerals and eliminate mechanical inclusions of non-magnetic minerals, resulting in higher recovery rates and concentrate grades. Ordinary magnetic separators are mainly used for separating strongly magnetic minerals and are less effective when processing fine weakly magnetic minerals.

16. Can the double-stator-ring pulsating high-gradient magnetic separator be customized?

The diameter of the separation ring, excitation power, magnetic medium material, motor configuration (explosion-proof motor), cooling system, pulsating mechanism parameters, and central control system can be customized.

17. How should the double-stator-ring pulsating high-gradient magnetic separator be maintained?

Regularly inspect the wear of the separation ring and magnetic medium, and replace or clean them promptly; regularly check the excitation coil cooling system to ensure proper heat dissipation; regularly inspect the water pressure and pipelines of the pulsating mechanism to prevent blockages; regularly check bearing lubrication and replenish or replace grease as needed; regularly inspect whether the foundation bolts and connecting bolts are loose.

18. Does the double-stator-ring pulsating high-gradient magnetic separator comply with RoHS and REACH?

Standard equipment meets the requirements of RoHS and REACH regulations and does not contain SVHC substances of very high concern. Specific compliance should be based on the product test report.

19. How to select the model of the double-stator-ring pulsating high-gradient magnetic separator?

Determine applicability based on the type and magnetic properties of the material, select models within the 4-55 t/h range according to production line capacity requirements, choose a separation ring diameter of 1000-2000 mm based on processing volume and site space, select a rated excitation power of 25-72 kW according to material magnetic properties and processing volume, and select a supporting motor power of 4.5-16.5 kW according to the separation ring specification.

20. How to use the double-stator-ring pulsating high-gradient magnetic separator in coordination with non-metallic purification and impurity removal equipment?

The double-stator-ring pulsating high-gradient magnetic separator can be used alone for the purification and impurity removal of non-metallic minerals or can be used in combination with high-gradient magnetic separators, flotation machines, gravity separation equipment, and other devices to form a complete mineral processing or purification process, improving product purity and recovery rate.

Technical FAQ

Which test data improves equipment selection?

Provide feed assay, particle-size distribution, slurry density, liberation size and target recovery or concentrate grade.

Can one machine handle every ore?

No. Mineral properties and process conditions change the required separation method, size and configuration.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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