The patented ADAPTIVE DFS (DEPRAG FASTENING SYSTEM) uses an EC-Servo Drive for feed stroke instead of a pneumatic cylinder. This enables us to automatically detect the point of penetration, regardless of material tolerances. By adjusting to actual conditions, the effort of setting numerous parameters is greatly reduced and the joining process always runs optimally. Since the recognition of point-of-penetration is independent of fastener and product tolerances, the process automatically adjusts, resulting in an optimized cycle with the highest reliability, shortest cycle time, less material stress, and reduced set-up time.
In addition to the EC-Servo screwdriver, this revolutionary tool uses EC-Servo technology for linear press stroke to generate the substantial downforces needed. Unlike widely used pneumatic cylinders with proportional valves, ADAPTIVE DFS is capable of instantaneously changing force, which is essential for this unique fastening technique. The compact and modular unibody design, as well as the closed loop control system, unlock DEPRAG’s unique adaptive capability, making this a true engineering marvel. A cylinder is just no match!