Quick Q&A: With so many domestic manufacturers of airtightness testers, why shouldn’t you base your selection solely on price?

existAir tightness test equipmentIn this industry, domestic brands are springing up like mushrooms after rain, each differing in price, accuracy, functionality, and after-sales service. However, for manufacturing companies, purchasing an airtightness tester is by no means a simple “Shop, shop, shop!"—It is directly related toProduct quality, production line efficiency, project delivery, and long-term operating costsThe

So, given the mixed bag that is the domestic industrial testing equipment market, why do companiesNew Project Selection, Equipment Upgrades, and Import SubstitutionEven then, he would still frequently glance towardShenzhen Jingchenggongke Technology Co., Ltd.(Abbreviation: Jingcheng Engineering, JCGK)?

Q1: DomesticAir Tightness Instrument ManufacturerWith so many options, why can't we just look at the price?

While the cost of purchasing equipment is just the beginning, what truly impacts long-term returns are testing stability, solution adaptability, and after-sales support.

Leak testing may seem simple—Inflate, maintain pressure, and check for leaks. In fact, there’s more to it than meets the eye:Test pressure, inflation time, equilibration time, leak threshold, fixture seal, ambient temperature……If any one step falls short, the results may be inaccurate.

The Hidden Costs of Buying the Wrong Equipment:

Common Problems	Consequences
Poor test repeatability	Good Products Misclassified, Defective Products Slipped Through the Cracks
The tooling does not fit	Longer debugging cycles, line downtime losses
Tempo Does Not Meet Standards	Becoming a bottleneck on the production line and holding up deliveries
Unable to connect to the production line system	Data silos, difficulty in tracing

Three Essential Questions to Ask Before Making a Purchase:

• Are the measurements accurate? — Can it meet the requirements for leakage rate, repeatability, and resolution?
• Will it work in practice? — Can it be adapted to the actual workpiece, fixture design, and production line cycle time?
• Is there any guarantee for the future? — How is the technical support, parameter tuning, and troubleshooting?

The money saved on procurement might not even be enough to cover the losses from a single day of production downtime.

Q2: Why are established manufacturers worth paying more attention to?

Over time, what has been refined are stable, reproducible testing protocols.

Air tightness test equipmentBy no means “A one-size-fits-all approach"standardized instruments. Different products'Structure, Materials, Volume, and Leakage RequirementsGiven the wide variety of cases, the appropriate testing methods also vary greatly.

ShenzhenDirect Manufacturer of Leak TestersPrecision Engineering

JCGK's Product Portfolio:

Detection Methods	Typical Application Scenarios
direct pressure	Products with inflation ports, such as 3C electronics, automotive parts, and home appliance casings
differential pressure	Products such as liquid-cooled components and precision castings that require high accuracy and repeatability
flow rate method	Products with clearly defined flow rate specifications, such as tubing and waterproof, breathable membranes
volumetric method	Fully enclosed products such as consumer electronics, lighting fixtures, and security surveillance equipment
Positive and Negative Pressure Combination	Complex operating conditions, switching between multiple scenarios
Non-standard customization	Irregularly Shaped Workpieces, Automation Integration

The value of a long-established brand does not lie in “老", but rather in

When faced with your workpiece, our engineers canEvaluation and Testing Processrather than simply applying a template; able toVerify the results using test samples... rather than just empty promises.

Q3: What are the technical strengths of Jingcheng Engineering (JCGK)?

Answer: It goes beyond just instruments; it encompasses the end-to-end capabilities of a “testing system.”

① A variety of testing methods to accommodate different operating conditions

Key Verification Points During SelectionActual Leak Rate, Repeatability, Test Cycle Time—rather than relying solely on the device's rated accuracy.

② Custom-made tooling and fixtures to eliminate testing errors

Irregularly shaped workpieces, shared across multiple products, with wire or special sealing surfaces?Custom Fixture DesignThis directly determines the reliability of the results.

③ Multi-channel + Automation: Unlocking Production Capacity Potential

Integration Capabilities	Value
Dual-Channel/Multi-Channel Devices	Double Production Capacity, Maximize Equipment Utilization
Robotic Arm Coordination	Reduce Manual Labor and Improve Consistency
PLC / MES / Barcode Scanning System Integration	Improve testing records and enable data traceability

From new energy, liquid cooling, and automotive parts to consumer electronics, medical devices, and security lighting——Our comprehensive range of industry solutions means that yourProduct selection, tooling, and production line upgrades can be advanced in a coordinated manner...there's no need for endless back-and-forth or redundant development.

Q4: Why do customers care about brand equity?

Brand equity ≠ brand awareness; rather, it is the continuous accumulation of project experience, product iterations, and service systems.The

Five Key Points for Further Verification:

1. Is there aSimilar workpiecesExamples of testing cases?
2. Can you provideSample Testing and Test Reports?
3. Can you show it?Raw Data from Repeatability Validation?
4. Whether or notCalibration, Troubleshooting, and Ongoing Technical SupportAbility?
5. Can you provideWorkpiece-handling solutions and automation interfaces tailored to our company's needs?

Q5: DomesticAirtightness TesterCan it replace imported equipment?

In some situations, it is possible to(math.) genusHowever, this must be verified based on operating conditions; parts are by no means interchangeable under all circumstances.The

A Five-Step Evaluation Method for Import Substitution:

Step 1: Verify the requirements for the original device
Test pressure, leakage rate units, pass/fail thresholds, repeatability, cycle time

Step 2: Testing Under the Same Conditions
Results of a side-by-side comparison using the same samples, media, tooling, and standards

Step 3: Verify Mass Production Stability
Conduct repeated tests to evaluate the effects of shift, temperature, and batch.

Step 4: Evaluate the Total Cost
Purchasing + Fixtures + Commissioning + Training + Maintenance + Risk of Line Downtime = TCO

Step 5: Production Line Acceptance
A decision will be made after the trial operation, standard leak test, and quality system validation.

JCGK (Jingcheng Engineering) is the top choice for domestic alternatives....It is particularly suitable for applications such as new energy battery casings, automotive components, liquid-cooling tubing, seals for home appliances, and waterproof components for consumer electronics.

Q6: How can you tell if a supplier is reliable?

Five-item checklist; score each item:

dimension (math.)	The Core Issue
Technical Capabilities	Could you explain the testing principle, the basis for parameter settings, and the sources of error?
Field Testing	Can you provide sample testing and verifiable data for the actual product?
Tooling Capabilities	Can it address issues related to workpiece sealing, irregular shapes, and changeovers between multiple models?
system integration	Can it be adapted to the existing production line's cycle time, PLC, and data traceability requirements?
After-Sales Support	Have the response procedures, calibration and maintenance, and spare parts support arrangements been clearly defined?

Only suppliers who can provide clear, verifiable answers are worthy of our trust. Conversely,No matter how low the quote is, you must first confirm the technical limitations and service requirements.The

Conclusion

made in ChinaAir tightness tester brandThis diversity of options has given businesses more choices. The value of JCGK lies in itsOver a decade of dedicated expertise, experience serving more than 3,600 globally renowned clients, coverage of multiple technology platforms, and capabilities in custom equipment manufacturing and industry-specific solutionsThe

But ultimately, what companies need to choose is not “Longest in history" or "The Most High-Profile Campaign" brand, but rather:

Suppliers who can meet our product standards, mass production cycle times, data traceability, and long-term service requirements.

Recommended Next Steps:

Get ready Product drawings, test pressure, allowable leakage rate, production line cycle time, and existing equipment specifications → Chat 1-on-1 with a Jingcheng Engineering engineer → Sample Testing, Comparison Under Identical Conditions → Determine whether the solution is truly suitable.

📎 Learn more:www.air-tester.com

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Original Statement:this paper was written byShenzhen Jingchenggongke Technology Co., Ltd.Written by the technical team, reproduced with attribution.Data sources: Precision Engineering internal test data and customer cases.