Based on the selected region of the image, the device is an Automatic Proctor-CBR Soil Compactor. [1]
Function: It is designed for laboratory use to determine the relationship between the moisture content and density of soil, often used in civil engineering and foundation construction.
Automation: The machine automatically performs compaction cycles by dropping a rammer onto the soil sample, reducing the manual labor typically required for these tests.
Standards Compliance: This apparatus is engineered to comply with various international standards, including ASTM D698 (Standard Proctor), ASTM D1557 (Modified Proctor), and AASHTO T180.