Zipper Slip Tester

Meet the standard:

ASTM D2061 BS 3084

JIS S3015  DIN 3419

Product Introduction:

In many applications, such as on bags, clothing, or footwear, it is important that a closed zipper remains closed and does not slide open unintentionally when subjected to tension or minor forces during use. A Zipper Slip Tester (or more accurately, a tester for slider holding or locking strength) quantifies the force required to cause the slider to move along the closed zipper chain.

The tester provides a standardized and objective way to measure this resistance, which is a critical performance characteristic for ensuring the security and reliability of zippers in their intended applications.

The instrument is used in laboratories for:

Measuring the force required to cause a closed zipper slider to slip or its lock to disengage.

Evaluating the effectiveness of slider designs and locking mechanisms.

Quality control during zipper manufacturing to ensure consistent slider holding/locking strength.

Research and development of more secure zipper sliders.

Ensuring zippers meet the security and performance requirements for specific end products.

Benchmarking the performance of different zipper sliders and types.

Product Advantages:

Provides objective, quantitative data on the force resisting unintentional slider movement.

Essential for evaluating the security and reliability of closed zippers.

Helps prevent zippers from inadvertently opening under tension during use.

Standard compliant test methods (ASTM D2061. BS 3084) are available for assessing slider holding/locking strength.

Useful for quality control, product development, and material comparison of zipper sliders.

Allows for testing under controlled tensile loading conditions.

Product Features:

Based on typical Zipper Slip (Slider Holding/Locking Strength) Testers:

Clamping fixtures designed to securely hold sections of the closed zipper chain above and below the slider position.

Mechanism to apply a controlled tensile force to the zipper chain, pulling the sections of the closed chain apart in a longitudinal direction. This might involve a weight system or a motorized test stand with a moving crosshead.

Force sensor (load cell) to accurately measure the applied tensile force.

Mechanism to detect slider movement or disengagement of the locking mechanism. This could be visual observation by the operator, a displacement sensor that detects when the slider starts to move, or analysis of the force data for a sudden drop indicating disengagement.

Digital display showing the applied force and the recorded force at which slip or disengagement occurred.

(For motorized testers) Automated control system for setting the speed of force application and automatically stopping the test upon detecting failure.

(For motorized testers) Data acquisition capabilities to record force data throughout the test.