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Servo-controlled gravity feeding scale for dosing and weighing of granular and powder materials
The servo gravity feed bagging scale uses a servo-driven feeding system instead of the traditional dual-cylinder setup. This upgrade delivers faster response, steadier operation, and higher weighing accuracy while eliminating fluctuations caused by air-pressure instability.
The weighing structure adopts three high-precision load cells arranged at equal angles around the scale’s center of gravity. This layout prevents uneven force distribution which is a common issue in multi-sensor systems, and ensures consistent, high-accuracy measurement during every filling cycle.
This servo-controlled gravity feeding scale is widely used in fertilizer and chemical production. It has been applied across a broad range of products, including compound fertilizer, DAP, MAP, urea, oxalic acid, ammonium sulfate, potassium fertilizer, water-soluble fertilizers, and other granular or powder materials that require automated dosing and packaging.
| Machine dimensions (L×W×H) | 950×900×1650mm (including feeding diverter and flow control gate) |
| Applicable materials | Free-flowing powders, granular materials, and micro-granules (gravity feeding without bridging) |
| Weighing range | 20-50kg/bag |
| Capacity | Single scale: 500–800bags/hr Double scale: 800–1200bags/hr (depending on material flowability and bulk density) |
| Accuracy | Static ±0.1% Dynamic ±0.2%, Class X(0.2) |
| Power supply | AC 220V/380V ±5%, 50 Hz±1%, three-phase four-wire |
| Peak power | 3kW |
| Air supply | 0.5–0.7MPa, 140Nm³/h, inlet pipe diameter 1inch |
| Operating temperature | -5°C to 40°C, dew point -40°C |
Specifications are subject to change without prior notice.
Product images may differ from the actual model configuration.