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Lead Time:
7-15 daysProduct Orgin:
ChinaShipping Port:
XiamenModel Number:
OLT-M43Voltage:
AC 220±22V 50Hz 35AWarranty:
1 year
Product Overview
The Ollital OLT-M43 Pilot Production Dry/Wet Spinning Machine is a precision-engineered pilot-scale solution spinning system designed for the production of high-quality fibers via both dry spinning and wet spinning methods. This versatile equipment is ideal for pilot production runs, sample development, material testing, and small-scale commercial manufacturing of synthetic and regenerated fibers.
The OLT-M43 integrates a complete spinning line including dope preparation, metering extrusion, coagulation, washing, drawing, drying, and winding into a compact, modular system. Whether you need to produce hollow fiber membranes for filtration applications, solid filaments for textile development, or specialty fibers for biomedical use, the OLT-M43 delivers reproducible results with minimal material consumption.
Primary Applications:
Membrane Filtration: Hollow fiber membranes for water treatment, dialysis, gas separation, and reverse osmosis
Advanced Textiles: Lyocell, viscose, acrylic, and spandex fibers
Biomedical & Healthcare: Collagen, PGA, alginate, and chitosan-based fibers
Carbon Fiber Precursors: PAN (polyacrylonitrile)-based fibers for high-performance carbon fiber production
High-Performance Fibers: Aramid, PBO, and other specialty fibers
Sustainable Materials: Bio-based and recycled polymer fibers for green textile applications
Working Principle
The OLT-M43 employs solution spinning technology, where polymers are dissolved in suitable solvents to form a spinning dope. The dope is then extruded through a spinneret into a controlled environment where the polymer solidifies into fibers.
Two Main Spinning Modes:
1. Wet Spinning Mode
The polymer solution is extruded directly into a coagulation bath containing a non-solvent. Through non-solvent induced phase separation (NIPS), the polymer precipitates and solidifies into fibers. This method is ideal for polymers that cannot be melt-spun due to thermal degradation and for applications requiring precise microstructure control.
2. Dry Spinning (Dry-Jet Wet Spinning) Mode
The polymer solution passes through an air gap (dry zone) before entering the coagulation bath. This allows partial solvent evaporation and molecular orientation prior to solidification, producing fibers with superior mechanical properties and smoother surfaces compared to traditional wet spinning. Spinning speeds can reach 2–3 times that of conventional wet spinning.
The Process Flow:
Dope Preparation Tank → Metering Pump → Filtration System → Spinneret → Air Gap (Dry Spinning Mode) → Coagulation Bath → Washing Baths → Drawing Rolls → Drying Oven → Winding Unit
Technical Insight: Dry-Jet Wet Spinning
The dry-jet wet spinning technique combines the advantages of both processes:
Air Gap Benefits: The extruded filament passes through a short air gap (typically 3–100 mm) where molecular chain orientation occurs, resulting in higher fiber strength and uniformity
Superior Surface Quality: Reduced surface defects compared to direct wet spinning
Higher Production Efficiency: Significantly faster line speeds, improving overall throughput
Ollital Technology would like to establish win-win business cooperation with distributors all over the world.
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+86 15960821529
+8615960821529
