Apron Feeder

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Product Details

Heavy-Duty Reciprocating Chute Feeder

The Reciprocating Chute Feeder (often utilized in similar applications as a heavy-duty Apron Feeder) is a robust mechanical feeding device installed directly beneath raw ore storage bins and hoppers. Its primary function is to transport large, heavy, and lumpy materials evenly and continuously into receiving equipment, most commonly a primary Jaw Crusher.

Unlike vibrating feeders that rely on high-frequency shaking, the chute feeder utilizes a powerful mechanical eccentric shaft to push and pull the bottom trough back and forth (oscillating stroke). This positive-displacement action makes it exceptionally reliable for moving wet, sticky, or clay-heavy ores that would otherwise pack and stall a standard vibratory feeder.

As a general engineering rule, the width of the feeding trough is designed to be 2 to 2.5 times the maximum particle size of your raw feed. For example, our highly popular 980×1240 model comfortably handles boulders up to 350mm, perfectly matching the intake demands of a standard PE-400×600 Jaw Crusher.

Heavy duty reciprocating chute feeder and apron feeder for primary crushing

Core Advantages in Mining Operations

Unstoppable Feeding Force: The mechanical reciprocating motion physically forces the material forward. It is highly resistant to jamming, even when dealing with high-moisture, sticky raw ores.
Massive Load Bearing: Designed to sit directly underneath huge raw ore bins, the thick steel trough supports immense vertical head-load pressure from tonnes of rock without warping.
Adjustable Feed Rate: The stroke length (the distance the trough pushes forward) and the oscillation frequency can be adjusted to precisely meter the tonnage of rock entering your crusher, preventing choke-feeding.
Simple & Rugged: With fewer complex electrical components than vibrating feeders, the reciprocating chute feeder offers decades of reliable service in harsh metallurgical, coal, and chemical environments.

Technical Specifications

Model	Inlet Size (mm)	Max Feed Size (mm)	Oscillation Stroke (mm)	Frequency (times/min)	Capacity (t/h)	Power (kW)	Weight (kg)
400×400	400 × 400	100	12	18.2	25 - 30	2.2	535
600×500	600 × 500	200	10 - 50	38.9	10 - 50	4.0	1054
980×1240	980 × 1240	350	20 - 50	23.7	36 - 90	7.5	1676

Essential Maintenance & Care

Because this machine bears the full static load of the ore bin, proper lubrication is vital to the lifespan of the equipment. Daily attention ensures maximum plant uptime.

1. Lubrication Management:

Ensure injected grease is free of dust and debris, and seals remain intact.
Regularly lubricate rotating bearings, roller bearings, all drive gears, and the movable sliding surfaces of the trough.

2. Daily Operational Inspections:

Wheel Hoops: Newly installed wheel hoops must be checked frequently for loosening during the initial break-in period.
Temperature Monitoring: If bearing oil temperature rises abnormally, stop the machine immediately and troubleshoot the friction source.
Acoustic Checks: Listen for sharp impact sounds from the rotating gears during operation. This indicates gear misalignment or broken teeth requiring immediate shutdown.
Housekeeping: Remove dust and rock buildup on the base frame plane to prevent the mechanical stroke from stalling or binding.

Frequently Asked Questions (FAQ)

Q1: What is the difference between this and a Vibrating Feeder?

A: A Vibrating Feeder uses high-frequency motors to "bounce" the rock forward. It is great for dry, hard rocks. A Reciprocating Chute Feeder uses an eccentric motor to physically push and pull a steel plate under the rock. It is a slower, high-torque movement that is vastly superior for wet, sticky, or clay-bound ores that would absorb vibration and get stuck.

Q2: Can I place a massive raw ore bin directly on top of it?

A: Yes. Unlike vibrating feeders which can be dampened by heavy head-loads, reciprocating feeders are specifically designed to sit flush under heavy silos. The mechanical push-pull action has the raw power to slide the material out from under thousands of tonnes of static pressure.

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