Double Mass Feeder
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Sub-Resonant Tuning Principle: Delivers massive feeding capacity with extremely low power consumption by leveraging natural frequency mechanics.
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High Head-Load Compensation: Automatically maintains a constant, stable feed rate even under heavy silo pressures and material loads.
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Dynamic Energy Efficiency: Requires up to 60% less motor horsepower compared to direct-drive single-mass vibratory feeders.
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Low Maintenance Architecture: Designed with minimal moving parts and enclosed exciters to drastically reduce wear and lifecycle upkeep costs.
1. Product Overview
The Double Mass Vibrating Feeder (also known as a two-mass sub-resonant vibratory feeder) is a highly efficient material handling solution engineered for continuous and precise volumetric regulation of bulk solids. Utilizing a two-mass mechanical spring system, this equipment operates close to its natural resonant frequency, magnifying small exciter forces into stable trough displacement. Widely deployed in mining, aggregate production, coal handling, and heavy chemical sectors, it sits beneath large storage hoppers and silos, effortlessly handling heavy material drop impacts and deep head loads where direct-drive single-mass systems often bog down or stall.
2. Detailed Description
This industrial feeder consists of a driving mass (the exciter assembly) and a driven mass (the feeding trough), dynamically connected by a series of heavy-duty steel coil or rubber shear springs. The primary motor generates a small alternating force, which is amplified through the sub-resonant spring network to vibrate the trough linearly. A standout feature of the two-mass tuning system is its automatic load-compensation capability: as the head-load inside the hopper increases, the spring system compresses slightly, shifting the natural frequency closer to the operating frequency to automatically maintain a constant feed rate. The structural trough can be fitted with replaceable wear-resistant steel or polymer liners to resist abrasive friction, while variable frequency drives (VFD) allow for real-time automated dosage adjustments.
3. Why Choose Us
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Exceptional Energy Savings: By letting the tuned spring network do the heavy lifting, the system draws minimal electrical power, drastically reducing annual facility utility expenses.
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Unwavering Material Flow: The load-compensating resonance guarantees that feed rates do not diminish when the silo is completely full, eliminating downstream starvation bottlenecks.
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Extended Component Longevity: Dynamic force isolation prevents high-frequency vibrations from transferring to the supporting structures, safeguarding your plant foundation from fatigue cracking.
4. Specifications & Technical Data
| Technical Parameter | Specification Detail |
| Feeding Principle | Two-Mass Sub-Resonant Vibration |
| Max Feeding Particle Size | ≤ 300 – 600 mm |
| Processing Capacity Range | 50 – 1,500 t/h |
| Trough Width Range | 600 – 2,400 mm |
| Trough Length Range | 1,200 – 4,500 mm |
| Motor Power Configuration | 1.5 – 22 kW |
| Tuning Ratio | 0.85 – 0.92 (Sub-resonant range) |
| Speed Regulation Method | VFD / Variable Frequency Speed Control |
| Total Structural Weight | 1.5 – 12 Tons |
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