Leak Test Fixture Design: Key Factors for Improving Efficiency and Stability

Leak Test Fixture Design – The Key to Efficiency and Stability

Published: May 12, 2025

In leak testing, the fixture is not only the key connection between the equipment and the workpiece, but also a core factor that affects testing efficiency, repeatability, and accuracy.
A well-designed fixture system = faster test cycles + more stable test data + lower false detection rates.

Wafu Brothers has been specializing in leak testing solutions for 16 years, improving production line efficiency and product yield through professional fixture design.

Five Key Advantages of Our Fixture Design

✅ Quick Clamping for Improved Cycle Time

Equipped with pneumatic clamping and quick-lock systems, allowing single-person operation. Fast loading/unloading, suitable for both automated and manual stations.

✅ High Repeatability to Eliminate Human Error

Three-in-one design: locating pins + guide pillars + stopper blocks to ensure consistent clamping precision and test stability.

✅ Reliable Sealing for More Accurate Testing

Custom O-rings, dual sealing grooves, and high-finish sealing surfaces provide strong pressure resistance and prevent false leakage.

✅ Universal Design Compatible with Various Products

Modular fixture replacement or sliding adjustment structures support multi-spec use with one fixture, reducing cost.

✅ Safe and Easy Maintenance, Worry-Free Operation

Quick-release sealing rings, clamping system limit protection, and interlock sensors ensure both operator and equipment safety.

Recommended Material Selections

Material Type	Characteristics	Application Scenarios
Aluminum Alloy	Lightweight, moderate strength, low cost	Electronic components
Stainless Steel	High strength, corrosion and heat resistant	Medical/New Energy products
POM/Nylon	Non-scratch surface, lightweight, easy to machine	Precision, scratch-prone products