KARP MACHINERY — Screening, Conveying & Mixing Solutions

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Square Gyratory screen
The Ultimate Large-Scale Screening Solution

Engineered with a unique gyratory reciprocating motion to deliver exceptional screening efficiency for bulk materials. Achieve high throughput and zero vertical vibration for maximum mesh longevity and purity.

98% Efficiency

Optimized particle separation.

12-Month Mesh Life

Minimum vertical stress.

Dust-Free Design

Fully enclosed structure.

Industrial Gyratory Screen

The Gyratory Screen is a precision sieving machine that utilizes a dead-axle driving unit to create a reciprocating horizontal movement. This unique motion ensures materials stay in constant contact with the mesh, effectively reducing dynamic loads and preventing particle damage while maximizing output.

Extended Mesh Longevity: No vertical vibration means the screening mesh lasts 6–12 months, significantly reducing replacement and maintenance costs.
Gyratory Reciprocating Motion: Significantly improves material distribution across the entire screen surface for higher effective utilization and efficiency.
Automated Self-Cleaning: Integrated cleaning units under each layer prevent mesh blinding, extending the operating period and ensuring consistent flow.
Zero Dust Pollution: The fully enclosed structure ensures a clean working

SCREENING AREA

2.8 – 40.0 m2

POWER RANGE

5.5 – 11.0 kW

SCREENING LAYERS

1 – 4 Layers

FEEDING SIZE

< 50 mm

Specifications

Technical Parameters

Based on our PXZS series, these specifications offer reliable, heavy-duty performance for large-scale industrial screening.

Model

Screening Area (m2)

Layers

Frequency (r/min)

Power (kW)

PXZS1224

1.2 × 2.4

1 – 4

1450

5.5

PXZS1236

1.2 × 3.6

1 – 4

1450

5.5

PXZS1530

1.5 × 3.0

1 – 4

1450

7.5

PXZS1836

1.8 × 3.6

1 – 4

1450

7.5

PXZS2040

2.0 × 4.0

1 – 4

1450

11.0

Material Suitability: Ideal for powders, granules, pellets, and bulk solids across chemical, food, and mining industries.

Photo Gallery

Real photos of our finished machines, component details, and on-site customer installations cases

Gyratory screen
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How It Works

Working Principle

The Gyratory Screen operates through a unique gyratory reciprocating motion that simulates the gentle action of manual sifting. By combining eccentric horizontal rotation at the inlet with linear motion at the outlet, the machine ensures that materials are evenly spread and effectively stratified across the entire screen surface. This low-frequency operation allows fine particles to pass through efficiently while protecting particle integrity and preventing mesh clogging through an integrated automatic cleaning device.

Eccentric Gyratory Motion

The machine uses an eccentric drive mechanism to generate a controlled, horizontal gyratory motion. This circular path ensures material is consistently distributed across the large square screening surface.

Even Material Spreading

Upon entering the inlet, material spreads rapidly and evenly across the mesh. This uniform movement maximizes the utilization of every square inch of the screen area, significantly increasing throughput.

Precise Stratification

As material travels along the horizontal path, fine particles smaller than the mesh aperture (down to 100$\mu m$) pass through efficiently. The gentle 3D motion prevents particle breakage, making it ideal for fragile materials.

High-Efficiency Discharge

Oversize material is moved in a continuous reciprocating path toward the outlet for rapid discharge. The optimized screen inclination of 5° ensures a smooth, non-clogging flow for 24/7 continuous operation.

Applications

Serving Diverse Industries

Our Gyratory Screens are engineered for high-precision screening across key industrial sectors:

Fertilizer Production

Precise grading for granulated fertilizers.

Chemical Industry

High-efficiency screening for resins and additives.

Quartz & Silica Sand

Preferred for high-precision industrial sand classification.

Metallurgy & Mining

Reliable processing of metal ores and ceramsite.

Refractory Materials

Durable screening for abrasive grits and sands.

Grain Processing

Massive capacity grading for grains, salt, and sugar.

Building Materials

Grading of cement, lime, and crushed aggregates.

Abrasives Industry

Accurate classification for high-hardness materials.

COMPLETE POWDER PROCESSING LINES

Integrated Powder Processing Systems

Integrated solutions for feeding, conveying, screening, mixing and semi-automatic powder packaging applications.

Related Products

Other Product Recommendations

High-Precision Tumbler Screening Machine

Laboratory Test Sieve Shaker

Trommel Screen

Project References

Installation Cases

Proven performance across international projects in demanding operational environments.

Integrated vacuum conveyor, metal detector, and rotary vibrating screen for maltodextrin powder processing.

Linear vibrating screen for marshmallow grading and sugar powder separation.

Quartz sand screening line with three gyratory sifters for 20–150 mesh classification.

Service & Support

After-Sales Support

Fast response and long-term technical support for global customers.

Installation Support

Remote & on-site guidance

Technical Assistance

24/7 engineer response

Spare Parts Supply

Fast delivery for standard parts

Get In Touch

Request for Quotation

Tell us about your requirements and our engineering team will respond within 24 hours.

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