, , , , , , , ,

Cheap Leak and Seal Tester of Space Bags Strength

Testing the integrity helps ensure that the sample provides required product protection.


The pressure decay method is employed for testing. It involves internally pressurizing space bags or other sealed packages to ascertain their maximum durability.


Test Method

To begin, attach the space bag to the fixture and apply pressure to reach the desired level. Once pressurized, disconnect the air source and proceed to check the pressure. If a decrease in pressure occurs, it suggests that there is a leak in the space bag. The standard testing protocol includes three methods: A, B, and C.

Test Method A (Burst Test)—Place the package in the apparatus and increase the internal pressure until a failure occurs.

Test Method B1 (Creep Test)—Place the package in the test apparatus, internally pressurize to the specified pressure, and maintain that pressure for a specified time.

Test Method B2 (Creep to Failure)—Identical to Test Method B, except the pressure is held until the package fails.

Technical Features

☛The unit is controlled by a PLC (industrial-level stability) and operated through an HMI touch screen.

☛The tester is capable of performing three test modes: burst, creep, and creep to failure.

☛Test results are automatically recorded and stored.

☛Personalized sensitivity and threshold settings are available.

☛Restraining plates can be added if needed.

☛Program customization is possible.

☛Standard pressure is up to 600kPa (87 psi), and it can be adjusted as per user requirements.

☛Compatible with various fixtures to facilitate testing of different packaging forms, such as open packages (three-side-seal), closed packages, doy packs, tubes, sealed trays, cups, etc.

Main Parameters

Test Range                     0~-600KPa

Sample Width               300mm (standard)

Inflating Head               Φ4mm

Compressed Air            0.4~0.7MPa ( Prepared by user)

Power                              110~220V 50/60Hz


Jigs Available

The LSST-01 control unit can work with many standard and customize jigs for different applications and sample forms, such as sachet, bag, pouch, tube, bottle, doy pack, cell battery, jumbo bag, etc. Please contact our sales for a customized plan.



ASTM F2054 Standard Test Method for Burst Testing of Flexible Package Seals Using Internal Air Pressurization Within Restraining Plates

Shopping Cart