Vertical soil extruders are used in several soil test procedures. It therefore provides solid, intact samples for soil testing. The generation of intact samples plays a significant role in successful, correct construction and infrastructure or even environmental studies. Therefore, vertical soil extruders find application in numerous fields as mentioned below:

Geotechnical Testing in Civil Engineering

The ground stability points in civil engineering form a basic basis that is indispensable in any construction project. There are vertically downward soil extruders that are used for extracting samples meant for triaxial compression, direct shear, and permeability testing. The results of these tests indicate soil strength, cohesion, and permeability, forming the backbone of designing foundations, retaining walls, and embankments.

For instance, while designing bridges or high-rise buildings, civil engineers must decide how much load bearing capacity the soil has. As vertical hydraulic extruders can handle large samples without breaking it. So, the natural soil structure will not be destroyed; this will give proper analysis to find compressive strength and shear resistance

Environmental Soil Sampling

In most projects where soil contamination needs to be closely monitored in environmental engineering, vertical soil extruders are used. For example, in evaluating a site for pollution, extracting undisturbed soil samples is essential when testing heavy metal concentrations, chemical pollutants, or microbial activity.

These extruders help in taking samples for tests concerning the permeability and rate of absorption of the soil. In the process, the natural layers of the soil are not disturbed, and it is also very important when testing contaminants because a contaminant may spread unevenly across the different strata of soil​​

Infrastructure and Roadway Testing

Vertical soil extruders are extensively used in testing and road, highway, and runway construction. In such projects, the soil's resistance to repeating heavy loads is of prime importance for long-term infrastructure. Soil samples are taken to assess a range of properties that may be involved-like compaction, plasticity, and the load-bearing capacity of the soil.

Road engineers use extruders to prepare test samples for California Bearing Ratio tests which are used to determine the load bearing capacity of soils for road foundation. Similarly, Proctor tests for soil compaction typically use samples that have been obtained using vertical soil extruders in order to obtain optimum moisture content and density required in stable constructions of roadbeds.