Here we show how four seemingly identical screw piles — with almost the same torque values — produced completely different bearing capacities:

🔹 Pile 1: 75 kN
🔹 Pile 2: 32 kN
🔹 Pile 3: 55 kN
🔹 Pile 4: 102 kN

The differences were caused by variations in rotation speed, advancement ratio, and soil conditions.

This is why torque alone is completely insufficient — and relying on it can lead to dangerously incorrect documentation. Aalborg University’s research has conclusively demonstrated that correct documentation requires continuous digital measurements of all three parameters: torque, advancement ratio, and rotation speed — as well as knowledge of soil conditions and pile geometry.

Pilar has developed a solution that makes this documentation easy, fast, and reliable — enabling screw piles to become a safe and competitive foundation method for future construction.