The Standard Penetration Test (SPT) Automatic Trip Hammer is engineered for geotechnical soil sampling and testing, fully compliant with BS 1377: Part 9: 1990 standards. This precision equipment ensures accurate penetration testing with consistent 63.5kg weight and controlled 760mm free-fall mechanism.

• Automatic self-tripping mechanism eliminates manual operation errors
• Precisely calibrated 63.5kg weight with exact 760mm free-fall distance
• Inner guide shaft ensures minimal resistance and square impact on anvil
• Compatible with standard SPT drive rods and split tube samplers
• Safety cross bolt secures components during transport and storage
• Extended length of 2.6m and collapsed length of 1.8m for versatile deployment

• Anvil
• Weight (63.5kg)
• Pawls, Springs & Axles
• Guide Rod
• Outer Tube Assembly
• Safety Cross Bolt
• Seloc Pin (anvil securing)

This automatic trip hammer is designed for driving split tube samplers and conforms to requirements for Standard Penetration Test (SPT) or Super Heavy Dynamic Probing (DPSH) in geotechnical investigations, site characterization, and subsurface exploration.