Liquid/Paste/Granules? The Core Logic of Filling Equipment Selection.
Liquid/Paste/Granules? The Core Logic of Filling Equipment Selection
As an equipment manufacturer with 20 years of experience in the filling industry, HZPK Packaging Machinery focuses on three key material categories to help you select the optimal equipment and avoid the risks of incorrect purchases or operational inefficiencies.
1. Liquid Filling:
For highly fluid liquids such as water, oils, and alcohols, peristaltic pump fillers are the ideal solution. These machines utilize hose-squeezing technology for quantitative delivery, suitable for low-viscosity liquids (e.g., dilute solutions or concentrated juices), with accuracy errors ≤±0.5%.
Critical Notes:
Highly corrosive liquids (e.g., acids/alkalis) require acid- and alkali-resistant pump heads paired with PTFE hoses.
For liquids with viscosity >5,000cPs, upgrade to gear pump-driven systems.
2. Paste Filling:
High-viscosity pastes like creams, toothpaste, and sauces demand piston fillers. Driven by pneumatic cylinders, these machines handle viscosities up to 500,000cPs and feature anti-drip back-suction functions.
Key Considerations:
Pastes containing particles (e.g., chili sauce) require enlarged valve ports and stirring hoppers.
Temperature-sensitive pastes (e.g., chocolate) necessitate constant-temperature hoppers.
3. Granule Filling:
For granular/flaky materials such as grains, tea, and spices, weighing fillers excel. Equipped with high-precision gravity sensors, they dynamically compensate for drop errors, ensuring bag weight deviations <±1%.
Optimization Tips:
Irregular particles (e.g., nuts) are best processed with vibration plates + multi-head weighers.
Fragile granules (e.g., puffed snacks) require reduced drop heights and buffer chutes.
HZPK Recommendation: Equipment selection must integrate material properties, production capacity, budget, and packaging formats.
Contact us today to rapidly identify the perfect packaging solution for your needs!
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