AT225 Continuous Melt Spinning Machine is a main key equipment in synthetic fibre production. This machine uses high temperature ceramic to heat and melt the polymer sample, and extrude the sample to be liquid trickle from a spinneret under the effect of inert gas pressure, then nascent fibers form under the effect of air cooling. It is specially designed for small batch production test to simulate the field production. Melt spinning part It consists of extruding part, extrusion measuring head, melt pump, spinning system and cross air blow device. 1. Extruding part With 3 sections of electric heating, adopts heating rod heating and copper bush soaking; Individual temperature control of these 3 heating sections, temperature range: RT~320℃. There is a cooling coiler at the discharge port to make the temperature control more quickly. 2. Extrusion measuring head With a individual pressure sensor and temperature sensor, can real-time monitor the pressure and temperature. 3. Melt pump It is made of high temperature resistant tool steel, heating power: 3kw, liquid viscosity: ≤40000Pas, liquid temperature: ≤400℃, pump cleaning temperature: ≤450℃, input pressure: 12MPa max., max. Pressure difference: 25Mpa, flow of melt pump: 2.4cc/rev, real-time collect pressure and temperature data and display on the control panel. Pressure and temperature sensor are installed in the internal of melt pump. 4. Spinning system It adopts crystal fiber furnace heating, the max. Power is 3kw, temperature range is RT~320℃. The biggest single loading quantity is 3L. With 3 sections of electric heating. 5. Cross air blow device Size: 150×150mm, water-cooled fan blowing, small air flow disturbance, excellent cooling uniformity. Oiling winding part 1. Rotary oiling device Roller material: PA6, with adjustable opening and closing design, convenient to start and stop at any time. 2. Hot roller Temperature range: 70~200℃, roller dia.: 125mm, roller length: 125mm, speed range: 100~500m/min; With polishing and chroming surface treatment, high hardness, excellent wear resistance. It adopts electric induction heating mode, clean and environment protection, low maintenance cost. Each set with frequency conversion motor, the speed can be individually adjusted. Measuring control part 1. Data monitor With programmable temperature controller, PID automatic temperature control, 3 sections of temperature control. PC remote control, interface display: extruding speed, hot roller speed, melt pump speed, temperature and other necessary alarm and signal. 2. Over-limit alarm A, Over load alarm B, Over temperature alarm C, Extruding pressure over limit alarm D, rotary speed of melt pump abnormal alarm. Technical Specification AT225 Melt spinning device Heating power of extruding screw 3kw Screw dia. 25mm Temperature range RT~320℃ Temperature accuracy ±0.5℃ Pressure sensor accuracy 0.1N Melt pump max. Temperature 400℃ Flow of melt pump 2.4cc/rev Spinneret plate 24 holes, hole dia.: 0.1mm Outer diameter: 90mm Material: 316L stainless steel Max. Power of crystal fiber furnace 3kw Max. Heating temperature of furnace 320℃ Cross air blow device 150×150mm Winding system Speed range of oil roller 300~1000m/min Hot roller temperature range 70~200℃ Hot roller dia. 125mm Hot roller length 125mm Winding head speed range 300~1000m/min Max.winding dia. 320mm Drive system Drive motor of melt pump 320w Drive motor of extruding screw 2.2kw Drive motor of hot roller 450w Drive motor of oiling system 450w Temperature control Temperature control accuracy ±0.5℃ Melt pressure sensor accuracy 0.1N Material of gas line 304 stainless steel Power supply AC220V, 50Hz