Application scenarios: power battery PACK / energy storage cabinet / liquid cooling pipeline / charging pile / connector / hydrogen fuel cellPLUS (Guangzhou) Intelligent Technology Co., Ltd. was founded in 2018 and specializes in the field of sealing test. It is a national high-tech enterprise integrating R&D, production and sales. In response to the new energy industry's demand for high reliability, strong traceability and fast cycle times, PLUS can provide integrated sealing test solutions covering stand-alone equipment, fixtures, data acquisition and full-line delivery.
PLUS has provided sealing test solutions to hundreds of customers across new energy, automotive, consumer electronics, medical and other industries, with the capability to consistently deliver everything from standard instruments to fully automated production lines.
| Qualifications | Description |
|---|---|
| High-Tech Enterprise | Recognized by the Ministry of Science and Technology of China (2023) |
| CE Certification | Certificate No.: M.2024.206.C99088 (LVD + EMC) |
| ISO certification | Complete certification documentation available in both Chinese and English. |
| Utility model patent | 15 items |
| Software Copyright | 3 items |
| Registered trademark | 3 items |
| CTS Authorized Distributor | Authorized by US CTS brand |
| Year | Milestones |
|---|---|
| 2019 | Launching a rapid test system for new energy power batteries |
| 2020 | Introducing the P520 Leak Detection Module and Hydrogen Leak Testing Equipment |
| 2021 | Launch of New Energy Energy Storage Cabinet Sealing Test Equipment |
| 2024 | Launch helium mass spectrometer leak detection equipment |
| 2025 | Launch hydrogen mass spectrometer testing equipment |
Lithium batteries are extremely sensitive to moisture and electrolyte leakage. Once the seal fails, it can lead to moisture ingress, internal short circuits, thermal runaway, and even fire or explosion. A single missed defect can trigger a recall of an entire batch.
Energy storage systems must operate outdoors over the long term, exposed to day-night temperature swings, sun and rain, salt spray, and dust ingress. Any sealing defect can lead to electrical short circuits and system downtime.
Charging piles typically require an IP rating of IP65 or higher, and there are multiple sealing points at connectors, sockets, and control boxes. Traditional air testing has a slow cycle time and is difficult to adapt to mass production.
New energy vehicle high-voltage connectors are numerous and produced in large batches, and micro-leaks are difficult to detect, requiring a testing solution that balances sensitivity, efficiency, and production line consistency.
In the thermal management system of power batteries, there are many connectors and high sensitivity to assembly deviations. Coolant leakage directly affects heat dissipation efficiency and battery safety, placing high demands on both flow and tracer detection.
Hydrogen molecules are extremely small, making leak detection highly challenging. The sealing integrity of bipolar plates and systems not only affects efficiency but also directly relates to explosion risk control, requiring ppm-level detection capability.






| Advantages | Description |
|---|---|
| 24-bit high-precision sampling | Industry-leading sampling accuracy that captures even the smallest leaks. |
| Full range CE certified | Worry-free exports to the EU, with even greater quality assurance. |
| Multi-communication protocol | RS232 / TCP/IP / Modbus / USB, compatible with multiple types of production line systems. |
| Flexible parameter groups | 99 to 999 sets of parameter storage, enabling efficient and stable switching between multiple product types. |
| Rich I/O interfaces | 8 IN / 8 OUT, capable of directly driving fixtures, sorting, and alarms. |
| Data traceability | Scan the code to bind to MES for full-process quality traceability. |
| Non-standard customization capabilities | From desktop to floor-standing, from manual to fully automatic, all customizable. |
| Full-line delivery experience | One-stop delivery of multiple systems, fixtures, and data acquisition. |
Equipped with 3 sets of leak test systems, 3 sets of fixtures, and 2 sets of data acquisition systems. Highlights include automatic barcode scanning binding to MES, fully automated operation of the entire line, and unattended operation.
Using the P530 flow tester with a custom test fixture enables precise quantification of micro-leaks in bipolar plates, meeting the stringent standards of the hydrogen energy industry.
Configure the D530 direct pressure leak detector, supporting rapid changeover and adapting to batch testing of wiring harnesses in multiple specifications.
Using the X530 differential pressure leak detector with a custom sealing fixture, one-stop testing of power battery trays and covers is achieved, with a cycle time of approximately 45 seconds per piece.
Integrate hydrogen-nitrogen sealing testing with vacuum filling processes to reduce production line footprint and improve delivery efficiency.
Since 2018, we have been deeply engaged in the sealing test field, with abundant accumulated cases in the new energy sector.
Differential pressure, direct pressure, flow, tracer gas, and hydrogen mass spectrometry testing solutions can all be delivered as integrated packages.
With experience in hundreds of customized solutions, we can configure everything from standalone units to complete production lines based on your specific scenario.
High-tech Enterprise certification, CE certification, ISO certification, and multiple patents together form a complete assurance system.
More than just equipment, we focus on fixtures, cycle time, data, and actual on-site operational results.
The Guangzhou headquarters works in coordination with the Suzhou office to provide coverage across major manufacturing regions nationwide.