Foaming Characteristics of Lubricating Oils Tester Manufacturer

High‑Throughput Screening with the Foaming Characteristics of Lubricating Oils Tester

Introduction
For large‑scale lubricant blending operations, rapid assessment of foam behavior across multiple formulations is essential. The Foaming Characteristics of Lubricating Oils Tester by Changsha Friend Experimental Analysis Instrument Co., Ltd. automates parallel foam testing to increase throughput without sacrificing accuracy.

Testing Principle
This instrument extends the ASTM D892 methodology to four simultaneous test stations:

• Each station comprises a graduated cylinder within a temperature‑controlled block (24 °C and 93.5 °C zones).

• Automated air valves deliver a precise 10 mL/min flow to each diffuser for 5 minutes.

• Integrated cameras capture foam column heights at the end of sparging and after a 5‑ or 10‑minute collapse period.

Technical Design Features

• Quad‑Channel Air Manifold: Independently controls airflow to each station, allowing differential testing of antifoam concentrations.

• High‑Resolution Imaging System: 5 MP cameras with adjustable focus provide images for software‑driven foam‑height analysis to ±0.5 mm accuracy.

• Temperature Uniformity: A monolithic aluminum bath block ensures all four cylinders experience identical thermal conditions within ±0.2 °C.

• Batch Reporting: The software aggregates results from all stations, flags out‑of‑spec samples, and exports data in CSV/PDF formats.

Key Applications

• Blending Plants: Screen antifoam additive levels across multiple lubricant grades simultaneously.

• Quality Control Labs: Verify batch conformity for hundreds of samples per shift.

• R&D Departments: Rapidly compare new base oils and additive packages for foam performance.

Best Practices

1. Simultaneous Pre‑Conditioning: Equilibrate all samples to room temperature before loading to minimize test variability.

2. Diffuser Maintenance: Replace or ultrasonically clean diffusers monthly to maintain consistent bubble generation.

3. Software Calibration: Validate foam‑height analysis against manual measurements quarterly to ensure image‑analysis accuracy.

4. Statistical Control: Implement control charts for foam indices to detect shifts in process performance.