Руководство по горному оборудованию: What Equipment Should You Use for Fine Particle Classification and Gravity Separation of Tungsten, Tin, Niobium and Manganese? A Complete Guide to High Frequency Screens and Shaking Tables

The high-frequency screen consists of components such as a vibrator, pulp distributor, screen frame, machine frame, suspension springs, and mesh. It is designed with high frequency, high vibration rate, and small amplitude, differing in principle from ordinary screening equipment. Because the high-frequency screen uses a high frequency, it disrupts the surface tension of the slurry and the high-speed vibration of fine particles on the screen surface, accelerates the high-speed vibration of high-density valuable minerals and fine particles on the screen surface, and increases the probability of particles smaller than the separating size coming into contact with the screen holes. This creates better separation conditions, allowing particles smaller than the separating size, especially heavy particles, to pass through the screen holes along with slurry as the undersize product. Shaking tables are used to separate metals such as tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, and iron (hematite, limonite) from mineral sands and slimes with particle sizes of 0.2–2 mm. They are one of the important pieces of equipment in gravity separation. Why choose these two pieces of equipment? Because the high-frequency screen effectively solves the problems of fine particles clogging the screen or low screening efficiency, making it particularly suitable for dewatering, desliming, and classification of fine particles. The shaking table offers stable separation, easy control, tolerance to variation in feed concentration, high enrichment ratio, high recovery rate, small footprint, low water consumption, simple structure, no power requirement, large processing capacity, easy installation, convenient operation, low investment, and quick results, making it widely used in gravity separation of rare and non-ferrous metals like tungsten, tin, niobium, and manganese. The high-frequency screen is mainly used for classification, dewatering, and desliming of fine particles, as well as for handling fine particles in mineral processing plants, coal washing plants, and building material industries. Shaking tables are mainly used for gravity separation of metal minerals such as tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, and iron, and for separation of mineral sands and slimes. Users who need these two pieces of equipment include mineral processing plants, mining enterprises, rare metal recycling companies, gravity separation plants, EPC contractors for mineral processing equipment, equipment distributors and stockholders, and overseas mining project buyers. When should these two pieces of equipment be selected or replaced? When processing fine particles requiring high screening efficiency, the high-frequency screen is preferred. When separating metals such as tungsten, tin, niobium, and manganese with a requirement for high enrichment ratio and recovery rate, the shaking table is preferred. When old equipment is inefficient, has poor separation performance, or a high failure rate, it needs to be replaced; when a new concentrator or gravity separation production line requires high-efficiency screening and re-election equipment, high-frequency screens and shaking tables should be prioritized. How to choose a high-frequency screen? Step 1: Confirm the screen surface area; select 4.5-8.1 m² according to the processing capacity. Step 2: Confirm the feed concentration; ensure it is within the 30%-40% range. Step 3: Confirm the processing capacity; select 15-48 t/h according to the production line capacity requirements. Step 4: Confirm the power; choose 0.72-2.2 kW based on the screen surface specifications. Step 5: Confirm the installation foundation; it must be installed on a solid concrete foundation and fixed with anchor bolts. How to choose a shaking table? Step 1: Confirm the incoming particle size; ensure it is within the 0.2-0.074 mm range. Step 2: Confirm the processing capacity; select 0.5-12 t/h according to the production line capacity requirements. Step 3: Confirm the stroke and stroke rate; select 10-30 mm and 240-360 strokes/min according to material characteristics. Step 4: Confirm the deck size and transverse incline; select 152×1825×4500 mm and 0-8° according to processing capacity and separation requirements. Step 5: Confirm motor power; select a 1.1 kW motor. Step 6: Confirm the installation foundation; it must be installed on a solid concrete foundation and fixed with anchor bolts.

High-Frequency Screen Specifications and Performance Parameters Table

Model	Screen Surface Area (m²)	Screening Concentration (%)	Processing Capacity (t/h)	Power (kW)
GPS-4	4.5	30%-40%	15-25	0.72
GPS-5	5.2	30%-40%	20-30	1.1
GPS-6	6	30%-40%	24-36	1.5
GPS-8	8.1	30%-40%	32-48	2.2

Shaking Table Specifications and Performance Parameters Table

Model	Stroke (mm)	Stroke Rate (strokes/min)	Transverse Incline (°)	Feed Particle Size (mm)	Feed Concentration (%)	Washing Water Volume (t/h)	Deck Size (mm)	Motor (kW)	Processing Capacity (t/h)	Weight (kg)	Dimensions (mm)
L-S Type (6-S)	10-30	240-360	0-8	0.2-0.074	15-30	0.4-0.8	152×1825×4500	1.1	0.5-12	1012	5454×1825×1242

General Technical Parameters Table

Parameters	High-Frequency Screen	Shaking Table
Type	High-Frequency Vibrating Screen	Gravity Mineral Jigging Table
Structure Composition	Exciter, pulp distributor, screen frame, frame, suspension spring, screen mesh	Bed surface, frame, transmission mechanism, slope adjustment mechanism
Core Advantages	High frequency, high vibration rate, small amplitude, not easy to clog, high screening efficiency	Stable separation, easy to control, high enrichment ratio, high recovery rate, low water consumption, no power required
Applicable Scenarios	Fine particle material classification, dewatering, desliming	Gravity separation of metallic minerals such as tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, iron, etc.

Dimension Drawing and Key Dimensions

`[Image: /images/high-frequency-screen-and-shaking-table-dimension-drawing.webp]`

Material Table

Component	Standard Material	Optional Material	Description
High-Frequency Screen Frame/Frame	Carbon Steel	Stainless Steel	Supports equipment weight and vibration load
High-Frequency Screen Mesh	High Manganese Steel, Polyurethane	Stainless Steel	Core wear part, wear-resistant and corrosion-resistant
High-Frequency Screen Exciter	40Cr/42CrMo Forging	Alloy Steel	Quenching and tempering, withstands high-frequency vibration
Shaking Table Bed Surface	Fiberglass, Wood	Aluminum Alloy, Stainless Steel	Wear-resistant surface, good separation performance
Shaking Table Frame	Carbon Steel	Stainless Steel	Bearing equipment self-weight and operational load
Shaking table transmission mechanism	40Cr/45# steel	Alloy Steel	Quenching and tempering treatment, smooth transmission
Bearing	Self-aligning roller bearing	Double-row cylindrical roller bearing	Capable of withstanding heavy load and vibration
Motor	All-copper coil motor	Explosion-proof motor	Standard three-phase asynchronous motor
Control box	Carbon steel/Stainless steel	Rainproof and dustproof type	Optional variable frequency speed control

Installation method

Both the high-frequency screen and shaking table need to be installed on a solid concrete foundation, which must withstand the equipment's self-weight and dynamic load during operation; during installation, ensure the foundation level meets the requirements, and anchor bolts are tightened according to torque specifications; the high-frequency screen needs to ensure the suspension springs are installed vertically, the vibrator is securely connected to the screen frame, and the screen tension is appropriate; the shaking table needs to ensure the table surface level and lateral inclination meet sorting requirements, the transmission mechanism is securely connected to the table surface, and the stroke and stroke rate adjustments are flexible; after installation, a no-load test run should be conducted to check whether the high-frequency screen vibration is stable and sound-free, and whether the shaking table movement is smooth and free of sticking; during the load test run, gradually increase the feed amount, observe the screening or sorting 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 optionally installed to achieve online monitoring and automatic control.

Application scenario table

Industry	Application	Recommended configuration	Key requirements
Mining plant	Fine particle material classification, dewatering, desliming	High-frequency screen GPS-4–GPS-8	High screening efficiency, not easy to clog
Tungsten, tin, niobium, manganese ores	Heavy separation of metal minerals such as tungsten, tin, niobium, manganese, etc.	L-S Type Shaking Table (6-S)	High enrichment ratio, high recovery rate, stable separation
Rare metal recovery	Recovery of tantalum-niobium, monazite, xenotime, and other minerals	L-S Type Shaking Table (6-S)	High recovery rate, large processing capacity
Iron ore concentration	Hematite, limonite separation	L-S Type Shaking Table (6-S)	Good separation effect, strong adaptability
Coal mine	Dehydration and de-sludging of fine coal slurry	High-frequency screen GPS-4–GPS-8	Large processing capacity, high screening efficiency
Building materials industry	Classification of fine materials	High-frequency screen GPS-4–GPS-6	High screening efficiency, stable operation

Note

High-frequency screens are suitable for classification, dehydration, and de-sludging of fine materials, with feed concentration 30%-40% and processing capacity 15-48 t/h; shaking tables are used for separating tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, iron, and other metal minerals at particle sizes of 0.2-2 mm and ore slurry, feed concentration 15%-30%, processing capacity 0.5-12 t/h. Explosion-proof motors are required in explosive environments. For highly abrasive materials, it is recommended to use high manganese steel or polyurethane screens. The shaking table surface is recommended to be made of fiberglass or wear-resistant aluminum alloy.

## Technical FAQ

1. What is a high-frequency screen?

A high-frequency screen is composed of a vibrator, slurry distributor, screen frame, machine frame, suspension springs, and screen mesh. It adopts high frequency, high vibration frequency, and small amplitude design, mainly used for classification, dehydration, and de-sludging of fine materials.

2. What is the working principle of a high-frequency screen?

Due to the use of high frequency, the high-frequency screen disrupts the surface tension of the slurry and the high-speed vibration of fine particles on the screen surface, accelerating the high-speed vibration of high-density useful minerals and fine particles on the screen surface, increasing the probability that materials smaller than the separation size will come into contact with the screen holes, thereby creating better separation conditions, allowing materials smaller than the separation size, especially dense particles and slurry, to pass through the screen holes as the undersize product.

3. What are the models of the high-frequency screen?

The high-frequency screen models are GPS-4, GPS-5, GPS-6, GPS-8.

4. What are the screen area and processing capacity of the high-frequency screen?

The screen area is 4.5-8.1 m², with a processing capacity of 15-48 t/h, depending on the model.

5. What is the power of the high-frequency screen?

The power is 0.72-2.2 kW, depending on the model.

6. What is the feed concentration for the high-frequency screen?

The feed concentration is 30%-40%.

7. What are the wear parts of the high-frequency screen?

Screen panels, exciters, suspension springs, bearings, etc., with the screen panel being the main wear part. It is recommended to choose high manganese steel or polyurethane material.

8. What are the common faults of the high-frequency screen?

Screen panel damage (due to strong material abrasiveness or insufficient tension), exciter overheating (poor lubrication or overload), spring failure (fatigue or breakage), abnormal vibration (exciter imbalance or loosening of anchor bolts), reduced screening efficiency (screen hole blockage or uneven feeding).

9. Does the high-frequency screen require a foundation?

Yes. It needs to be installed on a solid concrete foundation, which must support the machine's weight and the dynamic load during vibrating screening operations, and be fixed with anchor bolts.

10. What is a shaking table?

The shaking table is used for separating metallic minerals from tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, iron (hematite, limonite) with particle sizes of 0.2-2 mm and mineral slimes. It is one of the important gravity separation devices.

11. What is the working principle of the shaking table?

The shaking table drives the bed surface to perform asymmetric reciprocating motion through a transmission mechanism, while lateral water flow washes the bed surface. Materials on the bed surface are subjected to the combined effects of gravity, inertia, friction, water flow impact, and buoyancy, and are stratified according to density and particle size, then discharged longitudinally and laterally along the bed surface, thereby achieving separation.

12. What are the models of the shaking table?

The shaking table models include L-S type (6-S).

13. What are the stroke and strokes per minute of the shaking table?

Stroke is 10-30mm, strokes per minute are 240-360, which can be adjusted according to the characteristics of the material.

14. What is the feed particle size and capacity of the shaking table?

Feed particle size is 0.2-0.074mm, processing capacity is 0.5-12t/h.

15. What is the motor power and weight of the shaking table?

Motor power is 1.1kW, weight is 1012kg.

16. What are the bed surface dimensions and overall dimensions of the shaking table?

Bed surface dimensions are 152×1825×4500mm, overall dimensions are 5454×1825×1242mm.

17. What are the wear parts of the shaking table?

Bed surface, transmission mechanism, bearings, etc., among which the bed surface is the core wear part. It is recommended to use fiberglass or wear-resistant aluminum alloy.

18. What are common faults of the shaking table?

Bed surface wear (due to high abrasiveness of materials), transmission mechanism jamming (due to poor lubrication or foreign object obstruction), abnormal vibration (bed surface imbalance or loose anchor bolts), poor separation effect (improper stroke or stroke rate adjustment or uneven feed).

19. Does the shaking table require a foundation?

Yes. It needs to be installed on a solid concrete foundation, which should bear the equipment’s self-weight and operational dynamic load, with anchor bolts for fixation.

20. How to choose between a high-frequency screen and a shaking table?

The high-frequency screen is suitable for grading, dewatering, and desliming of fine-grained materials, with high screening efficiency and low likelihood of clogging; the shaking table is suitable for gravity separation of metal minerals such as tungsten, tin, niobium, manganese, chromium, titanium, lead-zinc, gold, and iron, with high enrichment ratio and recovery rate. When selecting equipment, the material properties, processing capacity, and sorting requirements need to be comprehensively considered. The two can also be used in combination: first use the high-frequency screen for grading fine materials, and then use the shaking table for gravity separation, forming a complete mineral processing workflow.

Technical FAQ

What determines screen capacity?

Feed rate, bulk density, moisture, particle-size distribution, deck area and required separation cut all affect capacity.

Do I need washing or only dry screening?

Choose washing when clay or adhered fines affect product quality. Confirm water source, recycling and discharge treatment.

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.

Long-tail keywords: high frequency screen and shaking table, screening equipment selection, mining machinery RFQ, mineral processing equipment supplier