Grizzly Feeder

Grizzly Feeder - FG Series

The Nesans FG Series Grizzly Feeders are engineered for heavy-duty feeding and pre-screening applications in primary crushing circuits. Designed to handle high-impact loads and large feed sizes, the FG Series combines rugged construction with precise vibratory motion to ensure a consistent and regulated flow of material to crushers or secondary processing equipment.

The feeder tray features a two-zone design: a solid pan section for initial material loading and impact absorption, followed by a grizzly bar section that screens out fines and bypasses smaller material before it reaches the crusher. This reduces wear on downstream equipment and improves overall plant performance and efficiency.

Mounted on high-compression springs and driven by twin vibro motors, the FG Series delivers powerful linear motion to move coarse material smoothly while maintaining separation efficiency. With options for replaceable liners, adjustable grizzly spacing, and chute protection, it’s a durable, low-maintenance solution tailored for demanding quarry and mining environments.

Applications:

Hard Rocks Quarried Stone Mineral Ores Recycled Concrete Clay and Brick Crushing

How It Works

The Nesans FG Series Grizzly Feeders work by combining vibratory force and a dual-section deck design to regulate the flow of large feed material while removing fines early in the process. Material enters the feeder from a hopper or bin and is first met by a solid pan section that absorbs impact and begins moving the material forward via linear vibrations generated by twin unbalanced vibro motors.

As the material progresses along the feeder, it reaches the grizzly section, which consists of heavy-duty bars spaced to allow finer particles to fall through. These fines are discharged through the spacing between the bars, bypassing the primary crusher and reducing wear, energy consumption, and unnecessary load. The oversized material continues toward the discharge end and into the crusher or next stage of processing.

Supported by robust coil springs, the entire structure vibrates efficiently while isolating the base frame from dynamic forces. The result is controlled, efficient feeding and pre-screening, ensuring smoother operation, extended equipment life, and improved downstream performance.