Oil mist separation efficiency test bench

The Oil Mist Separation Efficiency Test Bench is a modular, high-performance testing system designed for precise evaluation of oil separators, coalescing filters, inertial separators, and electrostatic filtration systems. It enables reliable characterization of separation efficiency, loading and holding time, pressure loss, and fractional efficiency under real operating conditions.

Equipped with a heated light-scattering spectrometer, heated dilution system, and heated aerosol generator, the test bench supports isothermal measurements up to 120°C, ensuring stable, reproducible, and internationally comparable results.

Application

The system is suitable for a wide range of industrial, automotive, and laboratory applications, including:

Quality assurance of oil separators

Development of coalescing, cyclone, and inertial separation units

Evaluation of separator performance for:

– Leaked aerosols in combustion engines

– Oil mist downstream of compressors

– Machine tool cooling lubricants

– Minimum-quantity lubrication aerosols

In-situ particle sampling and field testing on engines

Research on oil mist behavior under varying temperature and flow conditions

Standards

This system is designed with reference to relevant international and Chinese standards, including:

GB/T 6165-2021 – Test method for high-efficiency air filters

General guidelines for aerosol separation and fractional efficiency measurement

Commonly used international particle measurement practices

Features

Modular construction, allowing components to be removed and used independently

Isothermal and isobaric measurement up to 120°C

High-resolution light scattering spectrometer for simultaneous particle size and number measurement

Fast, reproducible, and operator-independent measurements

Heated aerosol generation, dilution, sampling, and measurement pathways

Automatic system control with FTControl software

Automatic measurement of fractional efficiency and pressure-loss curves

High reproducibility and internationally comparable results

Easy to operate; minimal training required

Low maintenance costs and short setup time

Customer-initiated cleaning and calibration

Mobile platform for flexible field use

Technical parameters

Measurement range (size)	0.18 – 40 µm
Volume flow rate	1 – 25 Nm3/h, 1 – 85 Nm3/h (Other specifications available upon request)
External dimensions	Approximately 1.600•2.000•800 mm (H•W•D)
Differential pressure measurement	0 – 5.000 Pa (ande auf Anfrage)
Aerosol concentration	Up to 107 particles/cm3. equipped with 2 KHG 10 D
Compressed air supply	6 – 8 bar

Advantages

Grading and Separation Efficiency and Feed Measurement and Evaluation

Isothermal and Isobaric Measurements

All Components Can Be Heated to 120°C

High Reproducibility of Test Methods

Internationally Comparable Measurement Results Due to the Widely Used Measurement System

Customer-Initiated Cleaning and Calibration

Easy to Operate; Even Untrained Personnel Can Quickly Use the Equipment

Modular Layout Offers Greater Flexibility

Validate the Functionality of Individual Components and the Entire System During Pre-Delivery Acceptance Testing and Upon Delivery**

Reliable Operation

Short Setup Time and Extremely Low Maintenance Costs

The Equipment Will Reduce Your Operating Costs

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