The vacuum saturation test developed by Beijing NaiDe Co., Ltd. is a necessary step among various testing methods. Before the electrical conductivity test, the sample is first subjected to vacuum saturation. The sample's conductivity is enhanced after saturation, playing a crucial role in the electrical conductivity test.

NEL-VJH Type Concrete Intelligent Vacuum Saturation Machine, specifically designed for the preliminary saturation of electric flux meters and equipment for measuring diffusion coefficients, its function is to place standard concrete specimens into this saturation equipment for automatic vacuum saturation, and can also be used for saturation of Ca(OH)2.2The equipment is highly resistant to corrosion, featuring a full stainless steel body.

NELD-CCM Cement Mortar Intelligent Vacuum Saturation Machine is specifically designed for use with the cement chloride ion diffusion coefficient meter.