Auxiliary Equipment

Apron Feeder

CAPACITY

200-800 t/h

FEED SIZE

≤500 mm

Application areas：The BLG Series apron feeder is designed for continuous and controlled feeding in mines, quarries, aggregate plants and mineral processing facilities. It is typically installed beneath a hopper or storage bin to feed crushers and other downstream equipment

Applicable materials：Suitable for limestone, granite, iron ore, copper ore and other coarse or abrasive bulk materials within the specified feed-size range.

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Technical Parameters

Model	Chain plate width (mm)	Chain plate length (mm)	Max feed size (mm)	Motor power (kw)	Capacity (tph)
BLG-0840	800	4000	≤500	7.5	200-250
BLG-1040	1000	4000	≤500	11	250-350
BLG-1240	1200	4000	≤500	15	400-500
BLG-1540	1500	4000	≤500	18.5	600-800

Frequently Asked Questions

An apron feeder is a heavy-duty material handling device that uses overlapping steel pans (aprons) mounted on two parallel chains to convey bulk materials from a hopper or bin to a crusher or processing unit at a controlled rate. Its main advantages are: exceptional durability for handling large, sharp, and highly abrasive materials; the ability to handle very heavy surges from direct dumping by excavators or trucks; accurate feed rate control; and reliable operation in harsh outdoor mining environments.

An apron feeder is generally preferred when the material is coarse, dense, abrasive, wet or difficult to handle, or when the feeder must withstand heavy hopper loads and impact feeding conditions. It is also suitable when a stable, low-speed and adjustable feed rate is required. For the BLG Series, the maximum feed size must not exceed 500 mm.

The feed rate is controlled by adjusting the chain travel speed via a variable speed drive (VSD) on the drive motor. The feed rate (t/h) is a product of the pan width, material layer depth (controlled by the skirt board height), and chain speed. For precise metering, the apron feeder can be integrated with a weightometer and PLC system to maintain a target tonnage automatically.

The service life of the pans and chains depends on material abrasiveness, feed size, hopper load, operating hours and maintenance conditions. Regular inspection of chain tension, pan condition, sprockets and drive components helps prevent unexpected downtime. Inspection and replacement intervals should follow the equipment manual and actual site conditions.

Apron feeders are large, heavy machines — typical installations require a reinforced concrete pit or elevated steel structure to accommodate the inclined or horizontal pan conveyor beneath the feed hopper. The structure must be designed to handle both the static weight of the feeder plus material load and the dynamic impact forces from material dumping. Xingaonai provides detailed foundation load drawings, anchor bolt layouts, and installation guidance as part of the equipment delivery package.