Net Weight Fillers

Net weight fillers place each container on a load cell and stop the fill when the target weight is reached. They are preferred where product is sold by weight, for high-value products, and for large containers such as pails and drums where volumetric methods are less practical.

How it works

Net weight fillers dispense product directly onto a scale positioned under the fill head, adding product until the target weight is reached rather than measuring volume. This approach compensates automatically for density variation between batches. It is common where fill accuracy by weight is more meaningful than by volume.

Common applications

• Filling products with variable density or consistency
• Packaging foods sold by weight
• Filling viscous or aerated products where volume is inconsistent
• Dosing chemical or industrial products requiring weight-based accuracy

Typical products and containers

Advantages

• Compensates for product density variation batch to batch
• Well suited to viscous, aerated, or inconsistent products
• Provides a verifiable weight record for quality checks
• Reduces giveaway associated with volumetric overfilling

Buying considerations

• Confirm scale accuracy and resolution meet your target fill weight tolerance.
• Consider cycle time impact, since weight-based filling can be slower than volumetric methods.
• Evaluate vibration and environmental factors that could affect scale readings.
• Check compatibility with your container shapes and sizes on the weighing platform.
• Assess integration needs with checkweighing or labeling systems downstream.