Stretch film machine
PPD-ASFE
Auto Stretch Film Extruder is PLC controlled automatic roll changer,Automatic loader and auto edge film recycling unit.This model mainly use LLDPE,LDPE,as well as recycled LLDPE material to produce one side sticky or double side sticky stretch wrap film,food cling film,cast extrusion stretch film etc.
Main data:
1.Machine main specification
（1） Film material：LLDPE or LLDPE+LDPE
（2）Tolerance of thickness：≤±5%
(3）Thickness of film：8µm-30µm
(4） Structure of film layers： A/B Co-extruded
(5）Width of effective film：1000mm(max) or 2*500mm
(6） Electric power: ≥90kw
（7）Electric power supply: According customer’s detail requirements
（8） Machine dimension(about): 6500*3000*3200mm
2. Composition
（1）Auto-loaders 2 sets
（2）Extruder unit 2 sets
（3）T-die Unit 1set
（4）Pulling rollers 6pcs
（5）Cooling roller unit 2 pcs
（6）Auto cutting&rewinding
（7）Electrical control box 1 sets
（8） Operating control system---PLC control (VIGOR Brand)
A、Gear box : Hardened tooth surface reducer.，146#，1Piece,173#，1 Piece
（1）Gear box processing technique: Tooth surface high-frequency quenching, hardened tooth surface precision grinded by gear grinding machine
B、Barrel and screw.
（No. 1 - EXTRUSION SYSTEM )
（1）The screw diameter: Φ65mm; Screw L/D: 30：1 (JinHaiLuo Screw--The best screw in the world)
(2) Screw length: 1950mm
（3）Structure：Shield mixing forge
（4）Material: 38CrMoA1，Hard chrome-plated screw
（5）Processing technique: Forging, quenching, nitrating
（6）Inverter : import from Shenzhen( Senlan Brand)
（7）Motor : 22 kw * 1 set
（8）Hopper : Autoloader 1 set
（9）55 Screw heating(Machine designed heating) 12kw
（No. 2 - EXTRUSION SYSTEM）
（1）The screw diameter: Φ90/65mm; Screw L/D: 30：1 (JinHaiLuo Screw--The best screw in the world)
（2） screw extruder，Length 1950mm
（3）Structure：Shield mixing forge
（4）Material: 38CrMoA1，Hard chrome-plated screw
（5）processing technique: Forging, quenching, nitrating
（6）Inverter : Senlan Brand
（7）Motor : 37 kw * 1 set
（8）Hopper : Autoloader 1set
（9）65 Screw heating(Machine designed heating) 16kw
C. Heating:
（1）Heating：Ceramic heating ring、Stainless steel cover with socket connections.
（2）Heating Power：>40kw
（3）Filter mode：Manual screen changer
（4）Cooling：water-cooling
（5）Plasticization Cooling：Forced air cooling
D. Extrusion Die
（1）Die width：1250mm
（2）Mode of die : T shape made
（3）Process theory：Specially designed with different shunt
（4）Die head material and processing：Use 718 high-quality steel, after quenching and tempering, grinding the inside surface of the polished mirror surface and hard chrome plating treatment;
（5）The gap of mold mouth 0.8 mm
(6) Die heating(Machine designed heating) 12kw
E. Traction winder , Electric control,
（1）Traction roller： Seamless Steel Tube（Mirror-polished, hard chrome surface plating with HRC 65）
（2）Cooling roller：420 mm diameter* 1250mm 2pcs: Special processing inside and outside the mezzanine, spiral cooling in two flow way to ensure even cooling temperature for the surface of the roller and have copper coupling with recycling system.
（3）Elevated cooling stretch：Oscillating, several aluminum rollers and rubber rollers
(3-1) Aluminum roller: 80*1200mm 6pcs
(3-2) Rubber roller: 90*1200mm 2pcs
（4）Machine designed traction speed：20-150m/min
（5）Stretch film thickness：10µm-50µm
（6）Cooling principle：Left to right into the rotary joint barrel water cooling made of copper
（7）Changing cutting：Automatic Invisible serrated knife to cut off
（8）Cutting driver：Brake deceleration control of motor and steam-driven approach control
（9）Rolling meters：Meters counter
(10) Oscillating is approx.100mm/min operated by auto motor
F. Rewinding Device
（1）Coiling type: friction rewinder，controlled by cylinder.(All Cylinders STNC brand)
（2）Rewinding roll：W-type Air shafts: two pieces with full automatic turnover exchange the roll
(2-1) Air shaft: 76*1200mm 2pcs
（3）Rewinding roller: 420mm * 1200mm 2pcs
（4）The Mechanical arm 1set
G. Automatic edge material recycling unit
（1）On line recycling unit 1 set
（2）Suction machine unit 1set
H．Controlling box
(1) Separate electrical controlling box 1 sets