JL8217 series high-speed water jet loom has the characteristics of good frame rigidity, stable weft insertion, strong weft beating force, high electrification level, etc. It can be equipped with four-link and six-link beating. It adopts electric pre-feeding, double back beam, and eccentric beating shaft, which can tighten high-density weft yarn, solving the beating problem when weaving high-density and heavy fabrics; and uses slow stop, over-start, and electronic compensation of weaving mouth, effectively eliminating the start gear; it can realize variable weft density weaving and variable speed weaving. Computer optimization design realizes high speed and small load, reduces the power consumption of the loom, and adopts new U-shaped nozzle, saving 30% of water consumption, which meets the requirements of modern and future development of energy saving. It can weave various hydrophobic chemical fiber fabrics, medium-thick and heavy-weight high-density fabrics, industrial fabrics, etc. in plain, twill, satin, small pattern and other organizations, and the fabric can be selected up to 600g/.