HeMaTech Prüftechnik GmbH & Co. KG
Our Leak Testers
Precise. Reproducible. Integratable.
Leak detection equipment for industrial leak testing
HeMaTech leak testers reliably detect, measure, and evaluate leaks in components. The 70PRO, 75ECO, and 71REL models are available to meet a variety of testing requirements—ranging from demanding differential pressure tests to cost-effective standard applications and relative pressure testing for larger permissible leak rates.
Ourleak testers are suitable for industrial applications in mass production as well as for test benches and laboratory applications. Depending on the task, the devices can be used stand-alone or integrated into automated test systems and existing production processes.
Are you looking for the right leak tester for your application? We’ll help you make the right technical selection.
Request a Leak TesterOurleak testers are suitable for industrial applications in mass production as well as for test benches and laboratory applications. Depending on the task, the devices can be used stand-alone or integrated into automated test systems and existing production processes.
Are you looking for the right leak tester for your application? We’ll help you make the right technical selection.
Choosing the Right Device
Leak Testers for Various Testing Requirements
Not every leak test places the same demands on measurement technology. Key factors include component geometry, permissible leak rate, test pressure, test medium, desired measurement accuracy, and cycle time. The decision of whether the test device will be operated manually or integrated into an automated production line also influences the selection.
HeMaTech therefore offers a variety of leak testers for different industrial testing tasks. With the 70PRO, 75ECO, and 71REL, three models are available that meet a range of requirements regarding measurement methods, accuracy, and application.
HeMaTech therefore offers a variety of leak testers for different industrial testing tasks. With the 70PRO, 75ECO, and 71REL, three models are available that meet a range of requirements regarding measurement methods, accuracy, and application.
70PRO Leak Tester
For Demanding Testing Tasks
The 70PRO leak tester is designed for demanding leak tests with high requirements for measurement accuracy and flexibility. It operates using the differential pressure method and offers a wide range of customization and expansion options.
This makes the 70PRO particularly well-suited for more complex testing tasks as well as for applications where small leaks must be reliably detected and various testing requirements must be met using a high-performance system.
The tester can be used as a standalone unit or integrated into test benches and automated production lines.
More about the 70PROThe 70PRO leak tester is designed for demanding leak tests with high requirements for measurement accuracy and flexibility. It operates using the differential pressure method and offers a wide range of customization and expansion options.
This makes the 70PRO particularly well-suited for more complex testing tasks as well as for applications where small leaks must be reliably detected and various testing requirements must be met using a high-performance system.
The tester can be used as a standalone unit or integrated into test benches and automated production lines.
The 70PRO is particularly well-suited for:
The 75ECO is particularly well-suited for:
75ECO Leak Tester
Cost-Effective Leak Testing
The 75ECO leak tester is a compact solution for many standard industrial applications. The device operates using the differential pressure method and combines good measurement accuracy with a design tailored to typical testing tasks.
This makes the 75ECO particularly attractive when a cost-effective leak tester is needed for recurring testing processes and the extensive configuration options of the 70PRO are not required.
The device is suitable for both individual test stations and integration into industrial testing processes.
More about the 75ECOThe 75ECO leak tester is a compact solution for many standard industrial applications. The device operates using the differential pressure method and combines good measurement accuracy with a design tailored to typical testing tasks.
This makes the 75ECO particularly attractive when a cost-effective leak tester is needed for recurring testing processes and the extensive configuration options of the 70PRO are not required.
The device is suitable for both individual test stations and integration into industrial testing processes.
71REL Leak Tester
Easy to Use Relative Pressure
The 71REL leak tester operates using the relative pressure method. This method measures the pressure change within the test specimen and uses it to evaluate leak tightness.
Compared to differential pressure testing, the relative pressure method allows for a simpler test setup. The method is less sensitive but covers a wider measurement range and is particularly suitable for applications with higher permissible leak rates.
The 71REL can also be integrated into automated manufacturing processes, making it suitable for both standalone testing tasks and integrated solutions.
More about the 71RELThe 71REL leak tester operates using the relative pressure method. This method measures the pressure change within the test specimen and uses it to evaluate leak tightness.
Compared to differential pressure testing, the relative pressure method allows for a simpler test setup. The method is less sensitive but covers a wider measurement range and is particularly suitable for applications with higher permissible leak rates.
The 71REL can also be integrated into automated manufacturing processes, making it suitable for both standalone testing tasks and integrated solutions.
The 71REL is particularly well-suited for:
Choosing the Right Testing Method
Leak Test Using Differential Pressure or Relative Pressure
The purpose of a leak tester is to make a defined leak in a component measurable.
The appropriate method depends primarily on the permissible leakage rate and the conditions of the specific application.
The HeMaTech documentation distinguishes, among other things, between pressure change measurements using relative/absolute pressure transducers and the differential pressure method.
The appropriate method depends primarily on the permissible leakage rate and the conditions of the specific application.
The HeMaTech documentation distinguishes, among other things, between pressure change measurements using relative/absolute pressure transducers and the differential pressure method.
Differential pressure testing
Detecting Small Leaks
In differential pressure leak testing, both the test specimen and the reference volume are pressurized. The relative change in pressure between the two volumes is then measured.
The comparison with a reference volume enables high measurement resolution. This method is therefore particularly useful for industrial applications where small leaks must be detected and reproducible quality assessments must be made.
The 70PRO and 75ECO utilize this testing principle.
In differential pressure leak testing, both the test specimen and the reference volume are pressurized. The relative change in pressure between the two volumes is then measured.
The comparison with a reference volume enables high measurement resolution. This method is therefore particularly useful for industrial applications where small leaks must be detected and reproducible quality assessments must be made.
The 70PRO and 75ECO utilize this testing principle.
Relative Pressure Test
Testing for Larger Leaks
In a relative pressure test, the change in pressure is measured within a sealed test volume. Unlike the differential pressure method, no additional reference volume is required for the actual comparison measurement.
This method thus allows for a simpler test setup and is particularly suitable for applications where larger leaks are permissible.
The 71REL is the corresponding HeMaTech tester for relative pressure testing.
In a relative pressure test, the change in pressure is measured within a sealed test volume. Unlike the differential pressure method, no additional reference volume is required for the actual comparison measurement.
This method thus allows for a simpler test setup and is particularly suitable for applications where larger leaks are permissible.
The 71REL is the corresponding HeMaTech tester for relative pressure testing.
A Comparison of Three Devices
Which leak tester is right for your application?
Whether the 70PRO, 75ECO, or 71REL is the right solution depends on the specific testing task.
In particular, the required test procedure and the permissible leak rate are important selection criteria.
Learn more nowIn particular, the required test procedure and the permissible leak rate are important selection criteria.
Versatile in Use
Leak Testers for Mass Production, Test Benches, and Laboratories
Leak testing equipment is used wherever components or assemblies need to be tested for leaks under defined conditions.
HeMaTech testing technology is used in the following areas, among others:
HeMaTech testing technology is used in the following areas, among others:
Possible test objects include, for example, housings, plastic parts, die-cast parts, valves, piping systems, battery technologies, and complex assemblies.
However, “tight” is not a universally applicable measurement parameter. What matters is what level of leakage is permissible for the specific component under its intended operating conditions. Test pressure and permissible leakage are therefore essential factors in designing a leak test.
However, “tight” is not a universally applicable measurement parameter. What matters is what level of leakage is permissible for the specific component under its intended operating conditions. Test pressure and permissible leakage are therefore essential factors in designing a leak test.
Ready for Automation
Integrating Leak Testers into Production Lines
A leak tester does not have to be operated as a standalone test station. Depending on the application, the devices can be integrated into test benches, automated test systems, and existing production processes.
For example, automatic test sequences, data interfaces, limit value monitoring, test logging, and communication with higher-level control systems can be integrated into the test process. The available HeMaTech documentation also lists statistical and reporting functions, as well as support for traceability, as possible features.
For more extensive automation tasks, HeMaTech develops complete leak testing systems. These can combine measurement technology, fixtures, workpiece handling, control systems, and data evaluation into a coordinated, integrated system.
Discover Leak Testing SystemsFor example, automatic test sequences, data interfaces, limit value monitoring, test logging, and communication with higher-level control systems can be integrated into the test process. The available HeMaTech documentation also lists statistical and reporting functions, as well as support for traceability, as possible features.
For more extensive automation tasks, HeMaTech develops complete leak testing systems. These can combine measurement technology, fixtures, workpiece handling, control systems, and data evaluation into a coordinated, integrated system.
Pay attention to these factors
Choosing the Right Leak Tester
A more powerful testing device is not automatically the more cost-effective solution. The key factor is that the measurement methods and equipment are suited to the actual testing requirements.
Before making a selection, the following points in particular should be clarified:
Before making a selection, the following points in particular should be clarified:
Component and Test Volume
The geometry and volume of the test specimen influence the test process and the required test times.
Permissible Leak Rate
What is the maximumpermissibleleakage under defined test conditions? The permissible leakagerateis one of the most important criteria when selecting a test method.
Test Pressure
The test pressure should be determined based on the application and subsequent operating conditions.
Cycle Time
In mass production, the leak test must fit into the existing production process.
Measurement Accuracy
The test should be designed to be as accurate as necessary to provide a reliable assessment of quality.
Degree of Automation
In addition to stand-alone units, integration into fixtures, test benches, or fully automated leak testing systems may be advisable.
The geometry and volume of the test specimen influence the test process and the required test times.
Permissible Leak Rate
What is the maximumpermissibleleakage under defined test conditions? The permissible leakagerateis one of the most important criteria when selecting a test method.
Test Pressure
The test pressure should be determined based on the application and subsequent operating conditions.
Cycle Time
In mass production, the leak test must fit into the existing production process.
Measurement Accuracy
The test should be designed to be as accurate as necessary to provide a reliable assessment of quality.
Degree of Automation
In addition to stand-alone units, integration into fixtures, test benches, or fully automated leak testing systems may be advisable.
Work Together to Design the Right Solution
Leak Testing Using the Right Testing Technology
Are you looking to purchase a leak tester, optimize an existing leak test, or determine whether the 70PRO, 75ECO, or 71REL is suitable for your application?
HeMaTech develops and manufactures testers as well as corresponding fixtures and machines at its facility in Schwaikheim near Stuttgart. Our services also include consulting to help you implement specific testing requirements.
Describe your testing task to us. Together, we’ll examine the component, test pressure, permissible leak rate, cycle time, and production environment to select a technically and economically suitable solution for your leak test.
Submit a Request NowHeMaTech develops and manufactures testers as well as corresponding fixtures and machines at its facility in Schwaikheim near Stuttgart. Our services also include consulting to help you implement specific testing requirements.
Describe your testing task to us. Together, we’ll examine the component, test pressure, permissible leak rate, cycle time, and production environment to select a technically and economically suitable solution for your leak test.
FAQ - Short and Easy to Understand
Frequently Asked Questions About Leak Testers
How does a leak tester work?
A leak tester detects changes in pressure within a defined test volume. Depending on the method, it measures, for example, the change in pressure of the test specimen or the differential pressure between the test specimen and the reference volume.
Which leak tester is suitable for small leaks?
The differential pressure method is particularly well-suited for detecting small, permissible leaks and meeting high requirements for measurement resolution. At HeMaTech, the 70PRO and 75ECO operate according to this principle.
What is the difference between the 70PRO and the 75ECO?
The 70PRO is designed for more demanding testing tasks and offers more extensive customization options. The 75ECO is designed as a compact and cost-effective solution for many standard applications.
When is the 71REL a good choice?
The 71REL operates using the relative pressure method and is particularly well-suited for applications with higher permissible leakage rates and a simpler test setup.
Can leak testers be automated?
Yes. Depending on the device and application, the test equipment can be integrated into test benches, control systems, and automated production processes.
Which components can be tested?
For example, housings, plastic and die-cast parts, valves, piping systems, battery technologies, and complex assemblies can be tested for leaks.
How do I find the right testing method?
Key factors include the permissible leak rate, test pressure, component geometry, test volume, cycle time, and desired measurement accuracy. Based on these factors, it is possible to determine which test method and which leak tester are most appropriate.
Can leak testers be calibrated?
Yes. Regular calibration supports test equipment monitoring and helps identify measurement deviations. HeMaTech offers calibration services for test equipment and other measurement systems.
Find a solution now
Request a Leak Tester
Whether it’s a demanding differential pressure test with the 70PRO, a cost-effective standard test with the 75ECO, or a relative pressure test with the 71REL: What matters most is that the leak tester meets the actual testing requirements.
HeMaTech combines industrial testing technology with consulting, integration, automation, and calibration. This allows a single testing device to be transformed into a complete solution for the testing process when needed.
Would you like to know which leak tester is right for your component?
HeMaTech combines industrial testing technology with consulting, integration, automation, and calibration. This allows a single testing device to be transformed into a complete solution for the testing process when needed.
Would you like to know which leak tester is right for your component?
HeMaTech Prüftechnik GmbH & Co. KG
Siemensstr. 7
D-71409 Schwaikheim