- 45+ Years of Leak Testing Expertise
With decades of experience in leak detection, our team has seen it all. We understand the challenges you face and design solutions built to deliver repeatable, reliable results - End-to-End Capability, One Partner
We deliver everything you need —sensors, fixtures, controls, seals, automation—in one fully engineered leak-test system, so you get a single accountable partner with a streamlined, efficient process.
Let's Build Your Leak Test Solution Together
When you work with CTS, you gain a dedicated partner invested in your success. Our applications team digs into your goals, process, and challenges—then engineers leak test solutions built to perform.
Cincinnati Test Systems delivers fully integrated, production-ready systems tailored to your part and process. From instrumentation and fixturing to data integration and validation, our team delivers solutions to ensure product quality, streamline operations, and accelerate time to market.

From Simple Integrations to Fully Engineered Systems
Choose the customization level you need—simple CTS instrument integration or a fully engineered custom solution—backed by our expertise in leak and functional testing.
Why Choose CTS for Your Integrated Test System?
- Proven Reliability & Validation
A leak test solution is validated by confirming requirements, calibrating instruments, performing Gage R&R, optimizing test limits, and completing on-site acceptance tests—all to ensure reliable, repeatable performance. - Flexible and Scalable to Your Needs
Whether you need a simple modular test or a fully integrated system, Cincinnati Test Systems offers flexible services for any scale and scope.
High-Performance Automation for Integrated Leak Test Systems
Our custom solutions go far beyond standard instrumentation. This Helium Hard Vacuum Leak Test System features a fully automated fuel rail robot, showcasing how CTS integrates robotics, automation, and advanced test methods into one seamless solution.
Leak Test Methods
CTS delivers a full range of leak test methods engineered to integrate seamlessly into your system — providing the sensitivity, speed, and efficiency your application demands.
Pressure Decay
Pressure decay testing is a fast, reliable method for detecting leaks by pressurizing a part and monitoring for pressure loss over time. The CTS team integrates this proven technology into custom-engineered systems that enhance accuracy, stability, and cycle time.
Mass Flow
Mass flow testing measures how much air passes through a part to identify leaks and verify flow performance. The CTS team designs mass flow solutions that integrate seamlessly with automation, fixtures, and controls for a complete, turnkey setup.
Tracer Gas
Tracer gas testing uses gases like helium or hydrogen to detect extremely small leaks with maximum sensitivity. CTS engineers develop custom tracer gas systems—complete with chambers, tooling, and automation—to meet even the most demanding applications.
Function Testing
Function testing verifies that a component or assembly performs as intended under real-world operating conditions. The CTS team integrates sensors, controls, pneumatics, and custom fixtures to ensure your product is tested accurately and efficiently.
Comprehensive Capabilities, Proven Performance
As your trusted partners, CTS starts every project with discovery—not assumptions. Then we design, build, and integrate leak test systems that deliver on your goals and performance requirements.
We have a comprehensive range of capabilities which anchor our services, including:
- Custom system design & integration
- CTS leak test instrumentation and optimization
- Customer part specific-fixture & sealing design
- Quality assurance - validation, calibration, traceability
- MES integration
- Lab testing and reporting for feasibility and cycle time verification
- Gage R&R, equipment variation
- Customer visits to CTS for run-off acceptance and training
- PLC/PC programming/support
Your Leak Testing Partner - From Start to Finish
Simplify your design-build process with one trusted source. CTS' leak test experts guide you through every step, delivering integrated test systems that work for you.
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Discovery & Requirements
We collaborate to define specs, cycle time, and integration needs.
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Proposal & Design
We prepare comprehensive proposals with clear scope and cost estimates, followed by detailed system designs + CAD models.
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Build & Integration
We assemble instrumentation, controls, fixtures, and integrate them into your production environment.
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Validation & Support (You have your own team)
We execute acceptance tests (e.g. Gage R&R), ship the system, and provide ongoing support and upgrades.
- Installation & Service
Our team commissions your system on-site, trains your operators—and keeps your equipment running at peak performance with responsive service and maintenance plans.
PLUS! Access Our Leak Test Lab Trial Services
Work with CTS’s state-of-the-art applications lab and expert manufacturing engineers to validate concepts, optimize test parameters, confirm leak test feasibility—and ultimately, get a better understanding of your leak test.
Frequently Asked Questions (FAQ)
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What types of custom solutions does Cincinnati Test Systems provide?
We design and build fully integrated leak test and assembly verification systems — from custom fixtures and automation interfaces to complete turnkey solutions.
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What does the process look like when developing a custom solution with CTS?
Our process typically includes application review, feasibility testing, concept design, engineering, build, and validation — all managed by a dedicated project team.
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Can CTS integrate its systems with my existing production line or automation equipment?
Yes. We design systems that easily connect with your PLC, robotic cells, or MES network, supporting a wide range of communication protocols such as Ethernet/IP and PROFINET.
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Can CTS help define the best test method for my application?
Absolutely. Our application engineers can conduct feasibility studies to determine whether pressure decay, mass flow, tracer gas, or another method will deliver the best results.
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What industries do you serve with custom leak testing solutions?
We work with manufacturers across automotive, EV battery, medical, HVAC, and industrial markets — anywhere precision leak testing is critical to quality and safety.
Let's Build your Leak Test Solution Together.
Schedule a consultation with one of our manufacturing experts to discuss your next project.
