راهنمای تجهیزات معدنی: What Equipment Should You Use for Screening and Classifying Granular and Powder Materials? A Complete Guide to Linear Vibrating Screens

Compared with the circular vibrating screen, electromagnetic vibration screen, and rotary vibrating screen, the linear vibrating screen has the characteristics of high screening accuracy, simple structure, easy maintenance, low energy consumption, low noise, good sealing, reduced dust pollution, and long screen mesh life. It has been widely used in the screening and grading of granular and powder materials in industries such as chemical, food, metallurgy, mining, building materials, grain, abrasives, fertilizers, and coal. The equipment generates a vibratory force through the exciter, causing the screen box to move back and forth in a straight line. The material is lifted and moved forward on the screen surface, with particles smaller than the screen holes passing through the mesh to become the undersize material, and particles larger than the holes discharged from the end of the screen, achieving material screening and grading. Why choose a linear vibrating screen? First, it has high screening accuracy and can effectively separate granular and powder materials of different particle sizes. Second, it has a simple structure and is easy to maintain, reducing long-term operating costs. Third, it consumes low energy and produces little noise, improving the working environment. Fourth, it has good sealing, reduces dust pollution, and meets environmental protection requirements. Fifth, the screen mesh has a long service life and can be equipped with multiple mesh structures to suit different material properties. Linear vibrating screens are mainly used for screening and grading granular and powder materials in industries such as chemical, food, metallurgy, mining, building materials, grain, abrasives, fertilizers, and coal. The users who need linear vibrating screens include equipment procurement and operation departments of chemical plants, food factories, metallurgical plants, mining enterprises, building material plants, grain processing plants, fertilizer plants, coal enterprises, as well as EPC contractors of bulk material processing production lines, equipment distributors and stockists, and overseas industrial project purchasers. When should you choose or replace a linear vibrating screen? - When high-precision screening and grading of granular or powder materials are required; - When the old screening equipment has poor accuracy, high dust pollution, high noise, or a high failure rate; - When a new bulk material processing production line requires screening equipment; - When export projects require adaptation to overseas voltage and high-efficiency screening conditions, a linear vibrating screen should be prioritized. How to choose a linear vibrating screen? Step 1: Confirm the screen surface area and choose between 2.25–27 m² according to the processing capacity. Step 2: Confirm the screen mesh size and choose between 0.25–5.0 mm according to the material particle size and grading requirements. Step 3: Confirm the screen structure and select woven, slit, perforated, rubber, polyurethane screens, or wire mesh based on material characteristics. Step 4: Confirm the maximum feed size, ensuring ≤250mm. Step 5: Confirm the processing capacity and select 4.5-846 t/h according to the production line requirements. Step 6: Confirm motor power and select 3×2 to 45×2 kW based on processing capacity and screen specifications. Step 7: Confirm the installation foundation, which must be on a solid concrete base and fixed with anchor bolts. Step 8: Confirm environmental protection and automation configuration, which can be equipped with a dust removal system and central control system.

Linear vibrating screen specifications and performance parameters table

Model	Screen area (m²)	Screen hole size (mm)	Structure	Maximum feed size (mm)	Processing capacity (t/h)	Motor power (kW)	Weight (kg)
ZK1022	2.25	0.25-5.0	Woven, slit, perforated, rubber, polyurethane screens, or wire mesh	≤250	4.5-90	3×2	2215
ZK1230	3.6	0.25-5.0	Same as above	≤250	7.2-144	4×2	2693
ZK1237	4.5	0.25-5.0	Same as above	≤250	9.0-180	5.5×2	3118
ZK1445	6.3	0.25-5.0	Same as above	≤250	12.6-252	7.5×2	4040
ZK1645	7.32	0.25-5.0	Same as above	≤250	95.0-280	7.5×2	4572
ZK1845	8.1	0.25-5.0	Same as above	≤250	16.2-324	11×2	5436
ZK2045	9	0.25-5.0	Same as above	≤250	16.2-324	11×2	5969
ZK2060	12	0.25-5.0	Same as above	≤250	24.0-480	15×2	7558
ZK2445	10.8	0.25-5.0	Same as above	≤250	21.6-432	15×2	7439
ZK2460	14.4	0.25-5.0	Same as above	≤250	28.8-576	15×2	9235
ZK3045	13.5	0.25-5.0	Same as above	≤250	27.0-540	15×2	9659
ZK3060	18	0.25-5.0	Same as above	≤250	17.5-525	22×2	11062
ZK3645	16.2	0.25-5.0	Same as above	≤250	37.8-756	22×2	12289
ZK3652	18.9	0.25-5.0	Same as above	≤250	43.2-846	22×2	13409
ZK3660	21.6	0.25-5.0	Same as above	≤250	43.2-846	22×2	14309
ZK3675	27	0.25-5.0	Same as above	≤250	54.0-1080	30×2	17100

General technical parameters table

Parameter	Specification
Type	Linear vibrating screen
Screen area	2.25–27 m²
Screen hole size	0.25–5.0 mm
Screen structure	Woven, slit, perforated, rubber, polyurethane screens, or wire mesh
Maximum feed size	≤250 mm
Processing capacity	4.5–846 t/h
Motor Power	3×2–45×2 kW
Weight	2215–25400 kg
Core Advantages	High screening accuracy, simple structure, easy maintenance, low energy consumption, low noise, good sealing, reduces dust pollution, long screen service life
Application Industries	Chemical, food, metallurgy, mining, building materials, grain, abrasives, fertilizers, coal

Dimension Diagram and Key Dimensions

`[Image:/images/linear-vibrating-screen-dimension-drawing.webp]`

Material Table

Component	Standard Material	Optional Material	Description
Screen Box/Frame	High-strength carbon steel	Stainless steel, wear-resistant steel plate	Carries materials and vibration load, requires high rigidity
Screen Mesh	High manganese steel, polyurethane	Stainless steel, rubber, woven mesh	Core wear parts, high wear and corrosion resistance
Exciter	40Cr/42CrMo forging	Alloy steel	Quenching and tempering treatment, withstands high-frequency vibration
Drive Shaft	40Cr/45# steel	Alloy steel	Quenching and tempering treatment, smooth transmission
Vibration-damping Spring	Helical spring	Rubber spring	Support and vibration damping
Bearing	Self-aligning roller bearing	Double-row cylindrical roller bearing	Withstand heavy load and vibration impact
Motor	Full 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

The linear vibrating screen needs to be installed on a solid concrete foundation, which should withstand the equipment's own weight and the dynamic load during screening operations; during installation, ensure the foundation's level meets requirements, and anchor bolts are tightened according to torque specifications; after positioning the equipment, adjust the level to ensure the screen box is horizontal, securely connect the vibrator to the screen box, maintain proper tension on the screen mesh, and install the vibration-damping springs vertically; after installation, perform a no-load test run to check if the screen box vibration is stable, and for any abnormal vibration or noise, confirming that amplitude and vibration direction meet requirements; during the load test run, gradually increase the feed amount, observe screening effectiveness 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 for online monitoring and automatic control.

Application Scenario Table

Industry	Application	Recommended Configuration	Key Requirements
Chemical Industry	Screening and grading of granular and powder materials	ZK1022–ZK3675	Good sealing, anti-contamination, high screening accuracy
Food Industry	Screening and grading of grains and food raw materials	Stainless Steel Linear Vibrating Screen	Hygienic, easy to clean, anti-contamination
Metallurgical Industry	Screening and grading of ores and sintered ores	ZK1845–ZK3675	Wear-resistant, high-temperature resistant, large processing capacity
Mining Industry	Screening and grading of ores and sand	ZK1645–ZK3675	Large processing capacity, wear-resistant, high screening efficiency
Building Materials Industry	Screening and grading of cement, sand, and gypsum	ZK1230–ZK3060	Good sealing, dustproof, high screening accuracy
Fertilizer Industry	Screening and grading of fertilizer raw materials and finished products	Stainless Steel Linear Vibrating Screen	Corrosion-resistant, pollution-proof, high screening accuracy
Coal Industry	Screening and grading of coal powder and coal blocks	ZK2045–ZK3675	Wear-resistant, explosion-proof, large processing capacity
Grain Industry	Screening and grading of grains and flour	Stainless Steel Linear Vibrating Screen	Sanitary grade, easy to clean, high screening accuracy

Note

The linear vibrating screen is suitable for screening and grading granular and powder materials. The screen surface area is 2.25-27 m², the screen mesh size is 0.25-5.0 mm, the maximum feed size is ≤250 mm, processing capacity is 4.5-846 t/h, and motor power is 3×2 to 45×2 kW. The equipment features high screening accuracy, simple structure, easy maintenance, low energy consumption, low noise, good sealing, reduced dust pollution, and long screen life. For explosive environments, explosion-proof motors need to be selected. It is recommended to use high manganese steel, wear-resistant alloys, or polyurethane screens for highly abrasive materials.

## Technical FAQ

1. What is a linear vibrating screen?

Compared with shaking screens, electromagnetic vibration screens, and rotary vibrating screens, linear vibrating screens have high screening accuracy, simple structure, easy maintenance, low energy consumption, low noise, good sealing, reduced dust pollution, and long screen life. They are widely used in chemical, food, metallurgy, and mining industries.

2. What is the working principle of a linear vibrating screen?

The linear vibrating screen uses the excitation force generated by the exciter to make the screen box reciprocate in a linear direction. The material is lifted and moved forward on the screen surface, particles smaller than the screen holes pass through the screen as undersize material, and particles larger than the screen holes are discharged from the end of the screen, achieving material screening and grading.

3. What are the models of the linear vibrating screen?

Linear vibrating screen models include ZK1022, ZK1230, ZK1237, ZK1445, ZK1645, ZK1845, ZK2045, ZK2060, ZK2445, ZK2460, ZK3045, ZK3060, ZK3645, ZK3652, ZK3660, ZK3675, etc.

4. What are the screen surface area and screen mesh size of the linear vibrating screen?

Screen area 2.25-27 m², screen mesh size 0.25-5.0 mm, varies according to the model.

5. What is the processing capacity and motor power of the linear vibrating screen?

Processing capacity 4.5-846 t/h, motor power 3×2 to 45×2 kW, varies according to the model.

6. What are the types of screen mesh structures for the linear vibrating screen?

Screen mesh structures include woven, slit, perforated, rubber, polyurethane, and wire mesh, and can be selected according to material characteristics.

7. What is the maximum feed size of the linear vibrating screen?

Maximum feed size ≤250 mm.

8. What are the wear parts of the linear vibrating screen?

Screen mesh, vibrator, vibration damping spring, bearing, etc., of which the screen mesh is the core wear part. It is recommended to use high manganese steel, polyurethane, or stainless steel.

9. What are the common faults of the linear vibrating screen?

Screen mesh damage (due to strong material abrasiveness or insufficient tension), vibrator overheating (poor lubrication or overload), spring failure (fatigue or breakage), abnormal vibration (vibrator imbalance or loose anchor bolts), and decreased screening efficiency (screen mesh blockage or uneven feeding).

10. Does the linear vibrating screen need a foundation?

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

11. What is the difference between a linear vibrating screen and a circular vibrating screen?

The linear vibrating screen uses a dual-shaft vibrator to make the screen box vibrate in a linear direction, and the material moves in a straight line on the screen surface. It is suitable for dehydration, desliming, and grading of fine materials. The circular vibrating screen uses a drum-style eccentric shaft vibrator to make the screen box move in a circular motion, suitable for grading and screening medium-to-coarse materials.

12. Can the linear vibrating screen be used in the mining industry?

Yes. It is suitable for screening and grading ores and sand in the mining industry, with large processing capacity, wear resistance, and high screening efficiency.

13. Can the linear vibrating screen be customized?

The screen surface area, sieve hole size, screen structure (woven/slotted/perforated/rubber/polyurethane/mesh), motor power, motor configuration (explosion-proof motor), dust removal system, central control system, etc. can be customized.

14. How is the sealing of the linear vibrating screen?

The linear vibrating screen uses a sealed structure design, which can effectively reduce dust pollution and meet environmental protection requirements.

15. How to maintain the linear vibrating screen?

Regularly check the wear condition of the screen mesh and replace it in time; regularly check the exciter and bearing lubrication, and refill or replace the grease; regularly check the state of the vibration-damping springs and replace any failed springs in time; regularly check whether the foundation bolts and connecting bolts are loose; regularly clean accumulated material and foreign objects from the screen mesh and screen box.

16. Does the linear vibrating screen comply with RoHS and REACH?

Standard equipment complies with RoHS and REACH regulations and does not contain SVHC high concern substances. Specificities should be based on the product test report.

17. How to choose the model of a linear vibrating screen?

Choose the model according to the processing capacity corresponding to a screen surface area of 2.25-27 m²; choose the screen hole size of 0.25-5.0 mm according to the material particle size and grading requirements; select the screen structure according to material characteristics; choose a processing capacity of 4.5-846 t/h according to production line capacity requirements; select motor power from 3×2 to 45×2 kW based on processing capacity and screen surface specifications.

18. How does the linear vibrating screen work together with a screw conveyor or elevator?

The linear vibrating screen is responsible for material screening and grading, the screw conveyor is responsible for horizontal or inclined transport, and the elevator is responsible for vertical transport. The three can form a complete bulk material handling production line, achieving integrated material transport, lifting, screening, and grading operations.

19. What is the lifespan of a linear vibrating screen mesh?

The lifespan of the screen mesh depends on the abrasiveness of the material, screen hole size, and screen material. Manganese steel or polyurethane screen meshes can last hundreds of hours when processing medium hardness materials; for highly abrasive materials, higher-grade wear-resistant materials should be selected.

20. What special requirements does a linear vibrating screen have in the food industry?

It is recommended for the food industry to use stainless steel linear vibrating screens to ensure hygiene level, ease of cleaning, and contamination prevention, in compliance with food safety production requirements. The screen mesh can be selected as stainless steel woven mesh or perforated plate.

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.

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