ESE-077 – 1.5 Meter Extension Rod For SPT

The 1.5 Meter Extension Rod is a specialized piece of equipment used in the Standard Penetration Test (SPT), a widely recognized method for soil testing, particularly in geotechnical investigations. The extension rod is added to the SPT drilling apparatus to reach deeper layers of soil, allowing the test to be conducted at greater depths, typically up to 30 meters or more, depending on the total length of the rod setup.

Key Features and Specifications:

1. Material Construction:
   • Typically made from high-strength steel or alloy, ensuring durability and resistance to bending or wear during drilling operations.
   • Corrosion-resistant coating is often applied, especially for use in environments with high moisture content or saline conditions.
2. Length:
   • The 1.5 meter length is a standard size, often used to extend the depth capability of the SPT apparatus. These rods can be stacked together for greater depth when necessary.
   • Standard lengths available for extension rods typically range from 1 meter to 3 meters, with the 1.5-meter option being ideal for most deep soil testing projects.
3. Compatibility:
   • Designed to be compatible with SPT sampling tools, drill rigs, and hammer systems typically used in geotechnical fieldwork.
   • The extension rod typically features universal thread connections that allow for easy coupling with other rods and drilling equipment.
4. Threaded Connections:
   • Equipped with secure threaded joints at both ends, ensuring that the rod can be securely attached to both the drilling equipment and other rods in the setup.
   • Thread patterns are designed to prevent slipping or disconnecting during the test, ensuring stability and consistency.