In mechanical assembly, discussions about the friction coefficient are always front-and-center. High friction is often favored because it improves bolt-locking performance and reduces torque decay, thereby safeguarding joint stability. Yet German automotive OEMs deliberately specify low-friction fasteners—an approach rooted in solid engineering and backed by clear advantages.

From a mechanical point of view, the preload equation shows that, for a given tightening torque, a lower friction coefficient yields a higher clamping force. This means the joint can withstand larger external loads and is inherently less likely to loosen under the complex dynamic conditions encountered during vehicle operation. In other words, reliability is improved at the source.

Additionally, low friction reduces the torque required for tightening. For car makers, this translates into the ability to use lower-range tightening tools—tools that are typically less expensive, more accurate, and better aligned with the stringent precision requirements of German vehicles. Cost structures are optimized while product quality remains uncompromised.

Another critical benefit is the suppression of stick-slip. Stick-slip causes sudden torque fluctuations, generating noise and vibration. Because German brands place great emphasis on driving refinement and comfort, minimizing NVH (noise, vibration, harshness) is essential. A low friction coefficient ensures a smooth tightening process and, by extension, a quieter, more stable ride.

Against this backdrop, Danikor’s intelligent electric screwdriver has become the tool of choice for automotive plants and other industries demanding high-precision assembly. Built with advanced sensors and a high-precision control system, it delivers repeatable torque accuracy that meets low-friction specifications. The intelligent controller can instantly adjust parameters for different bolt sizes and friction conditions, while real-time monitoring provides immediate feedback. If any anomaly is detected, the tool alarms and halts, preventing over- or under-tightening and safeguarding joint integrity.

Ergonomic design and an intuitive user interface further boost productivity. Rigorous quality control guarantees durability and reliability under high-intensity, high-frequency industrial use.

In summary, the advantages of low-friction fastening are compelling, and Danikor’s intelligent electric screwdriver—through smart control, real-time monitoring, and proven reliability—offers a high-quality tightening solution for automotive and general mechanical assembly, helping manufacturers continually improve product quality and production efficiency to satisfy market demand for premium products.