Helium Leak Tester Helium Leak Test System
Yamaha Fine Tech's proprietary low vacuum test realizes highly reliable measurement.
With our proprietary low vacuum chamber system and helium gas detector, highly reliable inspections are conducted.
Easy operation and easy maintenance are realized by a full fail-safe and sophisticated control system.
Easy operation and easy maintenance are realized by a full fail-safe and sophisticated control system.
Features of Helium Leak Tester
Tiny leaks detected accurately
Yamaha's proprietary low vacuum chamber system judges tiny leaks with an accuracy 100 to 1000 times as high as the accuracy of a submerged type or differential pressure air leak detection method.
Construction of a system directly connected to your production line possible
It is possible to construct a system directly connected to your production line and a robot-based transfer system when it is combined with Yamaha's factory automation technology. Productivity can be increased by manpower saving or unmanned operation.
Operational errors are reduced with a fail-safe system
A system is designed with safety in mind so as to reduce the operator load and prevent mistakes, such as adopting automatic sorting of conforming/non-conforming items, marking, processing check, and interlocking.
Easy operation and easy maintenance
A sophisticated control system is adopted to make operation and maintenance easy. In case of an operational error or problem, messages in Japanese help you navigate and find a quick and appropriate recovery method.
Comprehensive support provided from design to assembly and adjustment
Comprehensive systems can be offered to customers by carrying out design and manufacturing all in-house, from an inspection workpiece handling machine up to control design and assembly & adjustment.
One of the best track records in Japan
For Yamaha's leak testers, more than 500 systems have been supplied to a wide range of industries, having the top share in each of the fuel tank, aluminum wheel, and drum inspections in Japan.
Solution Cases
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Leak Tester for Aluminum WheelsThis tester can automatically detect the wheel size (13 to 20 inches) and perform a mixed flow leak test. -
Leak Tester for Fuel TanksWith the differential pressure control function, this tester prevents warping and conducts an accurate inspection effectively without using a fixture. -
Leak Tester for Automobile PartsA low-cost, space-saving, short-delivery, and compact packaged type leak tester.
Best suited for replacement of submerged-type inspection or differential pressure type inspection. -
Leak Tester for Lithium-ion Battery CasesThis tester performs a full automatic inspection of lithium-ion battery cases for tiny leaks. -
Leak Tester for DrumsThis tester contributes to productivity improvement through high-speed detection and high-speed transportation that match the drum production speed. -
Sniffer Detector YHS-630By putting its probe in direct contact with the workpiece, this detector can identify the leak location.
Examples / Option
We provide special systems tailored for the customers' production lines, such as systems supporting high pressures over 1 MPa and systems supporting full automation. Our personnel with rich experience provide full support, from design to manufacturing, adjustment, and installation. In our test room, demonstration equipment for drums, for fuel tanks, and for 15 MPa high pressure support are available. Feel free to ask for a trial test as needed. As an option, a helium recycling unit is also available.
* For a test pressure of 1 MPa or more, an application to the relevant prefecture is required. Since application forms are also available, feel free to consult with us in the above case.
* For a test pressure of 1 MPa or more, an application to the relevant prefecture is required. Since application forms are also available, feel free to consult with us in the above case.
Case 1: Rotary indexing table type
An all-in-one automatic inspection system that carries out operations from vacuuming to helium charging, inspection, and helium recycling with one unit. Overwhelming cycle time is realized.![[ Image ] Rotary indexing table type](./file/504/he_case_img01.jpg)
| Application | Car compressor |
|---|---|
| Size | W5400 mm x D3000 mm |
| Detection method | Vacuum chamber method |
| Cycle time | 24 seconds/workpiece |
| Helium charging pressure | 2.0MPa(G) |
| Helium concentration | 100% |
Case 2: Pallet feed type
An automatic inspection system that carries out operations from vacuuming to helium charging, inspection, and helium recycling, each on a unit basis. This system is easy to be combined into an existing production line, which makes process management easy.![[ Image ] Pallet feed type](./file/503/he_case_img02.jpg)
| Application | Car compressor |
|---|---|
| Size | W8200 x D3700 mm |
| Detection method | Vacuum chamber method |
| Cycle time | 18 seconds/unit |
| Helium charging pressure | 1.7MPa(G) |
| Helium concentration | 80% |
Option: Helium recycling unit
A recycling unit that reduces helium gas running costs, supply risk, and price increase risk. We will propose this unit according to the workpiece or charging pressure.![[ Image ] Helium recycling unit](./file/53/he_case_img03.jpg)
| Application | Lithium-ion battery case |
|---|---|
| Size | W800 x D800mm |
| Processing capacity | 15NL/min |
| Maximum discharging pressure | 0.7MPa(G) |
| Helium recycling efficiency | 90% or more |
Chamber method and sniffer method
Chamber method with high performance and high reliability, and sniffer method that is low-cost and space-saving
As a high-performance and high-reliability leak tester, the Yamaha Helium Leak Tester is adopted by many automobile parts and home electric appliance factories for testing such products as aluminum wheels, drums, air conditioners, and fuel tanks. According to the usage, inspection is also possible with such a system as a system employing the sniffer method.Vacuum chamber method
| Mechanism | ![[ Image ] Vacuum chamber method](./file/524/he_method_img01.jpg)
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| Features |
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| Recommended applications |
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Sniffer method
| Mechanism | ![[ Image ] Sniffer method](./file/523/he_method_img02.jpg)
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| Features |
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Chamber method mechanism
![[ Image ] Chamber method mechanism](./file/525/he_method_img03.jpg)
Chamber method whereby tiny leaks are detected accurately
Tiny leaks are judged with an accuracy 100 to 1000 times as high as the accuracy of a submerged type or differential pressure air leak detection method to conduct highly reliable inspection. In addition, compared to the sniffer method, which takes time to detect leaks due to probe operation, overall inspection of product can be conducted speedily.Reasons why helium (He) is used as tracer gas
- Helium is safe because it is not toxic or harmful and does not exert a bad influence on the human body and the environment.
- Helium is safe because it is non-combustible.
- A helium molecule has a small diameter and a small mass as well. It is easy to leak through even tiny holes.
- Usually, helium is present only in small amounts in the atmosphere or metal. Such helium and leaked helium are easy to distinguish.
- Helium is difficult to be liquefied in a normal environment. It does not block leak holes.
- Chemically, helium is an inert gas. It does not cause metal to rust.
Application examples
| Application image / Name | Name | Reference leak specification | |
|---|---|---|---|
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Engine |
Radiators Water pumps Cylinder heads Cylinder blocks Oil pans Engine assemblies Delivery pipes Injectors Common rails Oil pumps |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-5 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-4 Pa・m3/s or less |
 |
Air intake |
Intake manifolds Exhaust manifolds Turbochargers Catalytic converters Mufflers |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less |
 |
Air conditioners |
Compressors Condensers Evaporators Liquid tanks Air conditioner pipes |
10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less |
 |
Fuel system |
Fuel tank assemblies Fuel pipes Fuel pumps Canisters Fuel strainers Inlet tubes |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-7 Pa・m3/s or less 10-5 Pa・m3/s or less |
 |
Trans missions |
Torque converters Transmission cases Cylinder second brakes Oil pump housings |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less |
 |
Wheels |
Aluminum wheels Aluminum temporary wheels Steel wheels |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less |
|
Others |
Power steering Steering pumps Shock absorbers Air suspensions Brake master cylinders Brake boosters Air tanks Inflators |
10-5 Pa・m3/s or less 10-4 Pa・m3/s or less 10-5 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-6 Pa・m3/s or less 10-4 Pa・m3/s or less |
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Air conditioning-refrigeration field |
Air conditioner parts Evaporators Refrigerator coils Compressors Valve types Outdoor air conditioner assemblies |
10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less 10-6 Pa・m3/s or less |
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Drums & Canisters |
Drum cans | 10-4 Pa・m3/s or less | |
| 18 liter cans Stove fuel tanks Oil cans Spray cans |
10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less 10-4 Pa・m3/s or less |
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Home electronics |
Refrigerators Batteries of all types Waterproof shavers Waterproof vacuum cleaners Waterproof radios Laundry machine parts Irons |
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Food industries |
Showcase heat exchangers Freezers Vending machines Beer casks |
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Hydraulic-Pneumatic parts |
Hydraulic solenoid valves Pneumatic solenoid valves Air cylinders Couplers Check valves |
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Business Flow
- Consultation with customer about conditions
- Consideration of seal methods/confirmation of leak rate
- (Workpiece test/Consideration of conditions and regulations)
- Specification presentation/explanation of proposal/regulations submission
- Order received
- Control specifications/mechanical specifications
- Fabrication
- On-site inspection/improvements in response to customer feedback/transport and adjustment
Contact point
Inquiry by email
Inquiry by phone
+81-53-467-3601