Equipment Introduction

The dry particle extraction system uses a high-vacuum suction method to collect contaminant particles, representing a brand-new dynamic, non-destructive particle extraction method. This equipment makes technical cleanliness testing of large, high-surface-area components and on-site working environments more efficient, economical, precise, and industry-specific, especially for lithium-ion battery component testing.

The equipment's suction-based method for collecting contaminant particles has been tested and verified using the exponential decay method, fully complying with the relevant regulations and requirements for particle collection steps in VDA 19.1 or ISO 16232. It meets the reproducibility requirements for subsequent microscopic analysis results as specified in VDA 19.1. Compared to "wet" flushing-based particle extraction methods (such as the liquid medium extraction method described in VDA 19.1 or ISO 16232), the dry particle extraction method offers unique and irreplaceable advantages in various application fields.

Core Advantages

• Utilizes dry air for particle extraction, enabling non-destructive cleanliness testing of components without disassembly.

• Saves more time and logistics costs compared to "wet methods" when testing large components.

• High functional integration and portability, allowing for real-time on-site testing of components and the working environment.

• Rapid particle extraction avoids prolonged interruptions in the production process.

• After extraction, the particles on the filter paper can be directly subjected to immediate microscopic evaluation.

• Allows for full surface inspection of special locations such as holes during the production process (compared to particle adhesion methods).

• Enables precise testing of separation control areas without the need for additional measures (such as masking).

• Provides standard-compliant and highly valuable test results based on the microscopic evaluation requirements specified in VDA 19.1.

• Suitable for components that cannot come into contact with liquids, or as an alternative to situations where liquid media may cause particle migration and lead to biased results.

• Lower operating costs as it does not require the liquid media and filtration equipment needed for "wet methods".

Application Scenarios

• Large components: New energy battery trays, housings, wind power gears, etc.

• Components or raw materials that cannot be tested using "wet methods": Battery modules, electronic components, cables, motors, mica sheets, etc.

• Production process testing: parts racks, conveyor belts, and workshop environment in the assembly workshop. • Clean operation efficiency and clean area verification: such as vacuum-assisted clean operations, production clean areas, etc. • Cleanliness testing of production processes between independent assembly steps.