
Technical Cleanliness (ISO 16232 / VDA 19)
Comprehensive contamination extraction, particle sizing, and elemental source identification solutions for precision automotive and hydraulic components.

Small Particles, Big Hazards: Contamination Risks
Technical cleanliness is an essential quality index that indicates the quantity and nature of particulate dirt remaining on the active surfaces of a component after cleaning. Component residue and lethal particles are responsible for **over 80% of early mechanical system failures** and warranty claims.
High-pressure Hydraulics & Powertrains: Micro-particles block fluid channels or scratch cylinders, leading to rapid pressure drops or engine failures.
Precision Bearings & Turbines: Particles trapped in high-speed bearings (spinning at thousands of RPM) result in extreme thermal fatigue and catastrophic fractures.
Electronics & EV Circuits: Conductive metal particles bridging microscopic traces cause immediate short circuits, leading to controller failures.
Cleanliness Testing Parameters
Understand the difference between standard gravimetric checks and in-depth chemical particle characterizations.
Standard Analysis: Gravimetric & Size
Fundamental parameters to establish initial cleanliness levels per ISO 16232 and VDA 19.
Gravimetric Analysis: Determines the total dry weight of residual particles extracted from the component's surface.
Particle Length & Width: Measures the maximum size of individual particles. Length identifies 'worst-case lethal particles' capable of bridging critical gaps, while width determines if particles can pass through fluid channels.
In-Depth Analysis: Height & Composition
Advanced metrics to evaluate the true hazard potential and trace contaminant sources.
Particle Height Analysis: Critical for metallic particles to determine if their 3D thickness poses mechanical blockage risks.
Elemental Identification (LIBS/SEM): Determines the chemical composition of particles to determine if they are steel, aluminum, brass, or organic fibers, helping pinpoint the exact contaminant source.
Automated Leica Microscopy Solutions
Leverage automated scanning solutions powered by Leica optics to automatically size and analyze thousands of particles.
Leica Stereo Microscope M165C Program
An automated stereo microscope configuration optimized for rapid, standard cleanliness analysis.
Key Program Capabilities
- Automated particle detection down to 5 µm
- Automatic particle height measurement capabilities
- Differentiation between particulate contaminants and fibers
- Automatic discrimination of reflective (metallic) and non-reflective particles
- High scan speeds with coded zoom lens for repeatable calibration
Leica Material Microscope DM4M Program
Research-grade materials microscope solution for advanced cleanliness testing and metallography.
Key Program Capabilities
- Patented polarized light path specifically designed for cleanliness inspection
- Coded stage and focus for automated high-speed multi-field scanning
- Apochromatic optical path suitable for high-magnification metallographic inspections
- Accurate classification of reflective/non-reflective particles and fibers down to 5 µm
- Excellent reproducibility across multiple laboratory operators
Leica DM6M LIBS Spectrometer Program
The ultimate cleanliness solution combining optical inspection and chemical analysis in one system.
Key Program Capabilities
- Integrated Laser-Induced Breakdown Spectroscopy (LIBS) for instant chemical analysis
- Determines the elemental composition of target contaminants within 2 seconds
- Eliminates the need for expensive and slow SEM/EDX system transfers
- Full motorization of stage, nosepiece, and light settings for 1-click inspection
- Identifies contaminant source (e.g. tool wear, packing material, casting slag)
Complete Cleanliness Extraction & Analysis Systems
We provide localized turn-key hardware packages for washing, filtering, and scanning components.

DJ-CA100 Cleanliness Analyser
High-resolution optical particle counting and measurement system equipped with automated analysis software complying with VDA 19 / ISO 16232 standards.
Technical Features
- Resolution down to 5 µm
- Full automated stage scanning
- ISO 16232 compliance certification

DJ-CC767 Cleanliness Cabinets
Controlled extraction cabinets designed for component washing and residue collection. Offers a laminar flow clean environment to eliminate external ambient dust contamination.
Technical Features
- Integrated fluid extraction and filtration
- Self-cleaning cabinet functions
- HEPA air filtration system

DJ-CTS Cleanliness Testing Solution
Complete turn-key packages including extraction cabinets, vacuum filtration units, drying ovens, analytical balances, and automated microscope systems.
Technical Features
- End-to-end testing workflow setup
- Pre-loaded ISO & VDA evaluation templates
- Saves up to 40% lab footprint
Need a complete technical cleanliness laboratory setup?
From extraction cabinets to automated particle sizing microscopes, our engineering team in Lahore provides complete installations, methods setup, calibration disks matching, and ongoing training support across Pakistan.
