Why Piston Filling Beats Time-Based Systems for Accuracy
In tube filling and sealing, accuracy is everything. Overfilling wastes expensive materials and cuts into profits. Underfilling risks regulatory non-compliance, customer complaints, and product recalls. For manufacturers of toothpaste, cosmetics, pharmaceuticals, and adhesives, filling precision is a non-negotiable requirement.
The SGF-40RF-Y features a piston filling system that delivers exceptional accuracy across a wide range of product viscosities . This positive-displacement technology is widely recognized as superior to time-based or flow-meter systems.
The Problem with Time-Based Filling:
Time-based filling systems operate on a simple principle: open a valve for a set time, and assume the volume dispensed is consistent. This assumption is often wrong. Factors that affect time-based systems include:
Pressure Changes: As the hopper empties, pressure drops, reducing flow rate and fill volume.
Viscosity Variations: Changes in temperature or batch consistency alter viscosity, affecting flow rate.
Pump Wear: Over time, pump components wear, reducing efficiency and changing flow characteristics.
The Piston Advantage:
Piston filling avoids these problems by mechanically measuring each dose before dispensing.
| Filling System | Measurement Method | Accuracy Factors | Best Applications |
|---|---|---|---|
| Time-Based | Measures time valve is open | Affected by pressure, temperature, pump wear | Thin liquids, non-critical applications |
| Flow-Meter | Measures volume passing through a meter | Can be affected by viscosity and flow profile | Moderate accuracy needs |
| Piston (SGF-40RF-Y) | Physically measures a specific volume in a cylinder | Independent of pressure, viscosity, or pump wear | High-viscosity, high-value materials |
The SGF-40RF-Y's piston filling system is designed for high accuracy and stable filling quantity, making it ideal for a wide range of products from toothpaste to adhesives . The system is easy to adjust for different filling capacities (50ml, 100ml, 200ml, 250ml as per customer demand) .
For manufacturers looking to automate their filling process with precision equipment, the SGF-40RF-Y's piston filling system represents a smart investment in quality and consistency.
