As a premium textile-grade nylon 6 chip, Juheshun J2400 achieves molecular-level precision control through continuous polymerization and solid-state post-condensation technology. Its ultra-narrow molecular weight distribution (PDI ≤1.8) and extremely low carboxyl end-group content (≤32 mmol/kg) significantly enhance melt uniformity, reducing spinning breakage rates by over 30% while extending spinneret lifespan to 45+ days. Maintaining tension fluctuations < ±2% across 4500-6500 m/min spinning speeds, it enables stable, high-efficiency FDY/POY/HOY production with 50% reduced hairiness. The innovative low-temperature processing window (280-290°C) delivers 15% energy savings versus conventional processes, while ≤0.6% oligomer residue triples spinneret cleaning intervals. The resulting fibers exhibit premium quality: ≥92% cross-section roundness imparts silk-like hand feel, >95% dye uptake with 4-5 grade color fastness reduces dye consumption by 20%. With customizable end-group ratios and adjustable RV (2.8-3.8), it comprehensively serves applications from micro-denier fibers to industrial high-tenacity yarns, achieving 18% reduction in cost per ton of yarn for customers.