POLYGON MACHINE
Polygonmachine PGF Series Grizzly Screens
Polygonmachine PGF Series Grizzly Screens
Polygonmachine PGF Series Grizzly Screens are designed for the toughest pre-screening applications, efficiently separating fines and oversize material before primary crushing. Built for continuous operation under extreme conditions, these grizzly screens handle heavy loads and abrasive feed materials with outstanding durability and reliability.
They are ideal for use in mining, quarrying, and aggregate production, ensuring consistent feed flow and protecting crushers from oversized rock and debris.
Technical Specifications
| Model | Grizzly Area (mm) | Capacity (tph) | Power (kW) | Grizzly Bar Spacing (mm) | Feed Size (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| PGF-1240 | 1200×4000 | 150–250 | 22 | 75 | 600 | 11,000 |
| PGF-1550 | 1500×5000 | 200–350 | 30 | 90 | 800 | 14,500 |
| PGF-1850 | 1800×5000 | 300–450 | 37 | 100 | 900 | 18,000 |
| PGF-2050 | 2000×5000 | 400–550 | 45 | 100 | 1000 | 21,000 |
| PGF-2460 | 2400×6000 | 500–700 | 55 | 125 | 1200 | 26,500 |
Key Features
Heavy-Duty Grizzly Design:
Welded steel construction with thick, abrasion-resistant liners provides exceptional durability under impact from large feed materials.
Efficient Vibration Mechanism:
Twin unbalanced motors or eccentric shaft drives deliver powerful linear motion for high-capacity material separation.
Adjustable Grizzly Bars:
Customizable spacing between bars (typically 60–125 mm) allows for flexibility in separating fines and oversize materials.
High Load Bearing Structure:
Designed to support large feed volumes directly from excavators, loaders, or dump trucks without additional hoppers.
Wear-Resistant Components:
Replaceable manganese steel or Hardox grizzly bars ensure long life and low maintenance costs.
Integrated Feed Control:
Smooth material flow reduces crusher wear and increases overall plant efficiency.
Low Vibration Transmission:
Isolation mounts and heavy-duty frames minimize vibration transfer to foundations or structures.
Simple Maintenance:
Easy access to vibration motors and liners ensures quick servicing and reduced downtime.
Performance
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Feed Size: Up to 1200 mm
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Grizzly Bar Spacing: 60–125 mm (adjustable)
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Separation Efficiency: Up to 90%
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Operating Inclination: 10°–20° adjustable
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Energy Consumption: 0.4–0.6 kWh/ton
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Noise Level: <80 dB(A)
Applications
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Primary Feed Separation: Removing fines before primary jaw or impact crushers.
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Mining: Handling run-of-mine (ROM) ore and overburden.
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Quarrying: Scalping large rocks from blasted material.
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Recycling: Sorting mixed construction and demolition debris.
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Industrial Feed Preparation: Suitable for cement, steel, and aggregate industries.
