Challenges and Solutions for Air Pulse Dispensers! What are the 3 major Σ functions that solve dispensing problems?

2025/07/07

There are many challenges in handling liquid materials on the production floor. Troubles encountered during the production process can sometimes have a significant impact on work efficiency and quality. Here, we introduce the 3 Major Σ Functions, developed to prevent these troubles and achieve efficient production.

Table of Contents

What are the 3 major Σ functions?

The 3 major Σ functions are technologies essential for precision dispensing in air-pulse dispensers, which are equipped in the SuperΣ series. Specifically, they refer to the following three functions.

1. Automatic fluid head compensation function
2. Automatic dripping prevention function
3. Automatic low-level warning function

1. Automatic fluid head compensation function

As the liquid level (i.e., head height) drops, the force pushing the liquid out weakens.
When the liquid in the syringe decreases, the height of the liquid level inside drops. This reduction in height weakens the force (pressure) applied to the liquid, resulting in a decrease in the discharge volume.

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The automatic fluid head compensation function detects changes in the fluid head, automatically detects the position of the fluid head, and adjusts the discharge amount accordingly. Without this function, the discharge amount decreases as shown in the graph below, making high-precision dispensing difficult.
The automatic fluid head compensation function maintains a constant discharge amount at all times, enabling high-precision dispensing.

Tips

The larger the syringe size, the greater the effect of the hydrostatic head.

2. Automatic dripping prevention function

The automatic dripping prevention function automatically adjusts the vacuum pressure according to the remaining amount of liquid, preventing dripping from the nozzle tip and the inclusion of air, which significantly contributes to improving productivity and quality.

During dispensing, dripping and air entrapment can cause quality degradation and work defects.
When such problems occur, the following troubles may arise:

Liquid drips from the nozzle tip, causing uneven finishes
Air entrapment leads to unstable discharge volume
Dispensing lines stop or require rework, reducing production efficiency

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If you have an automatic dripping prevention function...

Achieves stable dispensing without air intake at the nozzle tip even when the liquid level decreases

Automatically adjusts vacuum pressure to
maintain stable quality

Tips

What is the vacuum function that helps prevent dripping?
The vacuum function is a feature that prevents dripping by pulling the liquid, which would otherwise drip due to its own weight, in the opposite direction.

3. Automatic low-level warning function

Running out of material is one of the troubles most to be avoided on the production floor.
When material runs out, it not only interrupts work but also leads to lower product quality and delays in the entire production line, resulting in significant costs and time loss. In particular, if work continues without noticing that the material has run out, it may lead to irreparable defective products or delivery delays to customers.

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However, there is a limit to manual confirmation of the remaining amount, and it is difficult to accurately predict the timing of material depletion.
The automatic remaining amount warning function solves these issues.

Accurately grasp the hydrostatic head position
High-precision sensing and monitoring of the remaining amount of liquid material in the syringe.

Precise detection just before running out of material
Accurately detects the remaining amount just before the material runs out and provides a two-stage warning to prevent work interruptions and troubles caused by running out of material.

Tips

The low-level warning is particularly effective when it is difficult for the operator to visually check the remaining amount in the syringe, such as in environments using yellow LEDs or when using a temperature control block.

Full-Function Digital Control Dispenser SuperΣCMⅣ

The Super Σ series products equipped with the 3 Major Σ Functions are as follows.
Please consider them as your partner in solving production floor challenges.