Hello! Both hydraulic pile drivers and mini excavators can install screw piles, but they have different characteristics and applications. A mini-excavator is commonly used for screw pile installation - it first secures the rod, sets the desired angle, and then gradually screws it into the ground, aided by the tip (blade). The mini-excavator approach is versatile and widely available, as many construction sites already have excavators on hand. A hydraulic pile driver is more specialized equipment specifically designed for pile installation. Both methods use hydraulic power for the working element (grip) and drive mechanism. The pile driving equipment has several basic components: the main equipment is mounted on a platform running on tracks or wheels (the unit can be moved either fully assembled or in separate modules for subsequent assembly on-site), the unit is secured using four hydraulically powered jacks for stability, the working element (grip) is hydraulically powered for holding and rotating the pile, the drive mechanism screws the rod into the soil and maintains the set angle, and there's a lever control panel for operator control. Both can drive piles at an inclination of up to 45 degrees. More at
https://features-of-screw-piles.blogspot.com/2025/08/what-equipment-is-needed-for-pile.html The choice often depends on equipment availability, site conditions, and project scale - discuss with your contractor which option best suits your specific situation.