Sealing test solutions for the new energy industry

Application scenarios: power battery PACK / energy storage cabinet / liquid cooling pipeline / charging pile / connector / hydrogen fuel cell
PLUS Intelligent Leak Test Solution

Make every battery cell and every energy storage cabinet stand up to the sealing test

PLUS (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.

Solution Coverage
  • Power battery pack and PACK enclosure sealing test
  • Energy storage cabinet complete-unit air tightness and production line traceability
  • Leak testing for liquid cooling lines, radiators, and connectors
  • Hydrogen fuel cell bipolar plates and high-standard tracer detection

Company Qualifications

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.

2018 The company was founded, continuing to deepen its expertise in the sealing test field.
15+ Utility model patent, covering equipment and fixture applications
3+ Software copyrights and registered trademarks, with a well-established capability system
CE Certificate No. M.2024.206.C99088, supporting export applications
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

New Energy Development History

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

Pain Points of Sealing Testing in the New Energy Industry

Pain Point 1: Thermal Runaway Risk in Power Batteries

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.

Pain Point 2: Extremely high sealing requirements for energy storage enclosures

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.

Pain Point 3: Long-term outdoor operation of charging piles

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.

Pain Point 4: Connector Sealing Consistency

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.

Pain Point 5: Coolant Line Leaks

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.

Pain Point 6: Hydrogen Fuel Cell Sealing

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.

PLUS New Energy Sealing Test Solutions

3.1 Power battery pack / PACK enclosure testing

Recommended equipment: X530 high-precision differential pressure leak detector

  • 24-bit high-precision sampling for sensitive detection of微小 leaks.
  • 99 parameter sets, enabling quick changeover between different battery pack models.
  • 8 IN / 8 OUT IO interface for seamless integration with production line PLCs.
  • RS232 + TCP/IP data export, capable of integrating with MES systems.
  • Supports one-stop testing of trays and covers, with cycle times controllable within 30 to 60 seconds.
X530 高精度差压检漏仪
3.2 Energy Storage Cabinet Sealing Test

Recommended equipment: X730 integrated leak detector + custom fixture

  • 7-inch color touchscreen with real-time dynamic pressure curve display.
  • Built-in sealing fixture reduces interference from external pipeline leaks.
  • 20,000 historical records, with automatic statistics for nonconforming products.
  • Built-in fixture control function, adaptable to energy storage cabinets of different specifications.
  • It supports scan-code binding with MES and unattended automated operation.
X730 检漏一体机
3.3 Liquid Cooling Lines / Radiator Testing

Recommended equipment: P520 high-precision flow tester / PLUS nitrogen-hydrogen tracer leak detector

  • Flow measurement accuracy up to ±0.8% of reading ±0.2% of full scale.
  • Optional flow ranges: 0.5 to 200 sccm, 500 sccm, 1 to 1500 SLPM.
  • Nitrogen-hydrogen mixture tracer gas, suitable for locating minute leaks in complex piping systems.
  • CE-certified configuration, meeting the import requirements of domestic and international projects.
P520 高精度流量仪
3.4 Hydrogen Fuel Cell Bipolar Plate Testing

Recommended equipment: P530 flow tester / PLUS hydrogen mass spectrometer leak detection equipment

  • 999 parameter sets capacity, compatible with different plates and process standards.
  • Supports precise quantification of micro-hole leaks in electrode plates, enhancing consistency control capabilities.
  • Hydrogen mass spectrometer testing equipment can meet the higher sensitivity standards of the hydrogen energy industry.
P530 流量仪
3.5 New Energy Connector / Charging Pile Testing

Recommended equipment: D530 high-precision direct pressure leak detector

  • 24-bit sampling, balancing flexibility and test accuracy.
  • Optional electrically controlled pressure regulating valve is available to enable fully automatic pressure adjustment.
  • RS232 data export for easy batch production line integration and traceability.
D530 高精度直压检漏仪
3.6 Multi-station batch testing

Recommended equipment: MT100 multi-station tester

  • Choose from 1 to 4 stations to significantly increase throughput per cycle.
  • Automatically adjusts pressure, supporting up to 4 MPa.
  • 7-inch touchscreen + TCP/IP data export, suitable for high-speed production lines.
MT100 多工位检测仪

Summary of Technical Advantages

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.

Typical Customer Cases in the New Energy Industry

Case 1: Energy Storage Cabinet Sealing Test Line

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.

Case 2: Hydrogen Fuel Cell Plate Sealing Test

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.

Case 3: New Energy Wiring Harness Sealing Test

Configure the D530 direct pressure leak detector, supporting rapid changeover and adapting to batch testing of wiring harnesses in multiple specifications.

Case 4: Battery Pack Housing Sealing Test System

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.

Case 5: Radiator Sealing and Vacuum Filling System

Integrate hydrogen-nitrogen sealing testing with vacuum filling processes to reduce production line footprint and improve delivery efficiency.

Why Choose PLUS

8 Years of Focus

Since 2018, we have been deeply engaged in the sealing test field, with abundant accumulated cases in the new energy sector.

Full product line coverage

Differential pressure, direct pressure, flow, tracer gas, and hydrogen mass spectrometry testing solutions can all be delivered as integrated packages.

Non-standard customization capabilities

With experience in hundreds of customized solutions, we can configure everything from standalone units to complete production lines based on your specific scenario.

Complete qualifications

High-tech Enterprise certification, CE certification, ISO certification, and multiple patents together form a complete assurance system.

Turnkey Line Delivery

More than just equipment, we focus on fixtures, cycle time, data, and actual on-site operational results.

Responsive

The Guangzhou headquarters works in coordination with the Suzhou office to provide coverage across major manufacturing regions nationwide.

Contact Information

  • Headquarters: 3rd Floor, Building A1, No. 36 Xinhe North Road, Zengcheng National Development Zone, Guangzhou
  • Suzhou Office: 26th Floor, Gaoxin Plaza, No. 28 Shishan Road, Huqiu District, Suzhou
  • Phone: 400 999 0513 / 136 6022 5670
  • Email: info@plusgz.com
  • Official website: www.plusgz.com
Make every battery stand up to the sealing test
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