flail shaft

The flail shaft undergoes dynamic balancing after the blade holder is welded, considering that it needs to rotate at high speed during grass-cutting operations.

To accommodate high-speed rotation, the shaft ends are welded with extra strength. This ensures that even when hitting hard objects such as stones or tree stumps, the welds remain intact, preventing damage to the flail shaft and significantly extending its service life.

After dynamic balancing, the shaft undergoes a powder coating process to prevent rust during long-term sea transportation.

Specially designed blades are installed to achieve excellent mowing performance. These high-strength blades rebound upon impact with hard objects, reducing damage to the blades.

During testing, it was found that cotter pins were too long and could get entangled with grass or other tough materials over extended mowing periods, leading to wear and the risk of detachment.

To address this, we use 12.9-grade bolts with self-locking nuts. The bolt length is precisely designed to protrude just beyond the nut, minimizing the risk of grass entanglement, loosening, and blade detachment.