In the production of plastic bottles for pesticides, chemicals, and food, a single micro-leak can lead to product loss, contamination, and brand damage. This is why an leak tester has become a non-negotiable component of modern blow molding machine.

How Does a Leak Tester Work?

The most common method is Pressure Decay Testing. After the bottle is deflashed and cooled, it enters the leak testing station. A high-precision probe seals the bottle neck and injects compressed air to a set pressure. The system then monitors the pressure for a fraction of a second. If even a tiny drop in pressure is detected, the bottle is identified as defective.

Key Benefits of Leak Tester:

• 100% Inspection: Unlike manual spot-checking, an online tester checks every single bottle without slowing down production.
• Automatic Rejection: Defective bottles are automatically kicked off the conveyor, ensuring only perfect containers move to the labeling or packing stage.
• Early Warning: If the system detects a series of leaks, it alerts operators to check the machine’s parameters (like parison temperature or mold cooling), preventing mass production waste.

For blow molding machine, leak testers have evolved from an optional quality inspection tool into a core component ensuring efficient, high-quality, and intelligent production. This represents a crucial leap in blow molding production, moving from simply “making products” to “making excellent products.”

FAQ:

Q: What is the maximum bottle size a leak tester can handle?

A: Bestar offers modular leak testers suitable for everything from 100ml bottles to 200L large drums.

Q: Does the leak tester slow down my production cycle?

A: No. Modern leak testers are designed to match or exceed the speed of the blow molding machine, ensuring a seamless flow.

Q: Can it detect leaks in the handle area?

A: Yes, as long as the handle is part of the sealed internal volume of the container, any leak will cause pressure drop that the sensor can detect.

Q: Is it easy to switch between different bottle sizes?

A: Yes, the testing heads and conveyor rails can be adjusted or swapped quickly, making it ideal for factories with multiple product lines.

About Suzhou Bestar Blow Molding Machinery Co., Ltd:

Beier Group and Bestar company are same owner And Bestar has been established for more than 19years. Bestar provides customers high efficiency, innovative, energy saving blow molding machinery solutions. Bestar blow molding machines sold to more than 60 countries.

Series blow molding machine is used for blowing 100ml-1250L HDPE PE PP products like milk bottles, daily chemical packaging bottles, jerry cans, pesticide bottles / medicine bottles and stacking barrels.

Please write your machine inquire Email, Phone Number and Company Name here, we will respond within 12h. Or you can directly contact us: Email: sales@bestarmachinery.com or at Whatsapp/Wechat +86 18862609888.