Chemical Fiber Spinning Spinnerets High Precision Melt Wet Spinning Solutions

Overview

A spinneret (also known as a spinning nozzle or spinning jet) is the most critical precision component in chemical fiber spinning machines, directly determining the quality of the final filament . It transforms polymer melt or solution into fine strands that solidify into fibers. Depending on your spinning method, we offer specialized spinnerets for all major processes, including Melt Spinning (spinneret plates), Wet Spinning (spinneret caps), Dry Spinning, Air-Gap Spinning, and Non-woven fabric production (Melt-blown & Spunbond) .

Technical Advantages

• Application-Specific Design: We provide spinnerets tailored to your specific process and polymer .

  • For Melt Spinning: Typically circular or rectangular plates made of high-temperature resistant stainless steel (e.g., SUS316, SUS630), used for polyester (PET), nylon (PA), and polypropylene (PP) .

  • For Wet Spinning:帽-shaped caps or plates crafted from highly corrosion-resistant materials like gold-platinum alloys, tantalum, or stainless steel, ideal for rayon, acrylic, vinylon, and aramid fibers .

  • For Dry & Air-Gap Spinning:帽-shaped or circular plates made of stainless steel or Hastelloy, suitable for high-tenacity fibers like acrylic and aramid .

  • For Non-wovens: Specialized spinnerets for Melt-blown (with high L/D ratios) and Spunbond processes, including conjugate types for bicomponent fibers .

• Diversified Capillary Geometry: Beyond standard round holes, we specialize in irregular hole shapes such as slits, trilobal, Y-shaped, cross-shaped, and flat designs . These profiled cross-sections impart unique properties to fibers, including silk-like luster, improved cohesion, moisture management, and enhanced fabric hand-feel .

• Superior Material Selection: We utilize a wide range of high-quality materials to ensure durability under high-pressure and high-temperature spinning conditions, as well as resistance to corrosion from aggressive chemicals .

  • Stainless Steels: SUS304, SUS316, SUS316L, SUS420J2, SUS630, and others (DIN 1.4021, 1.4571, etc.) .

  • Precious Metals & Alloys: Gold-Platinum (Au-Pt) alloys and Platinum-Iridium (Pt-Ir) alloys for maximum corrosion resistance in wet spinning .

  • High-Performance Alloys: Tantalum and Hastelloy for specialized chemical resistance .

Key Specifications & Accuracy

We maintain world-class precision in micro-hole machining, with tolerances reaching as tight as ±0.001mm for special requirements .