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Film Blowing Machine-Heat shrinkable PVC film blowing set provided with the upper tractor for rotating PVC

Product Categories: Film Blowing Machine
Film Blowing Machine-Heat shrinkable PVC film blowing set provided with the upper tractor for rotating PVC
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Company Profile Tel ：86-577-65154444 Fax：86-577-65157010

Product Description:

 

Applications:

　　The set adopts the pipe-type PVC film blowing method, which can produce film with advantages of good transparency, high lustrousness and strong contractility. The film is a new type popular packaging material and is widely used as the external packing for food, drink, tea, glasswork, handiwork, sanitaryware, cosmetics, electronic products and so on.

Features:

1. The set comprises a plastic extruder, an air ring, a head, an upper tractor for rotation, a cooling device, a heating device for expanding, a coiling device and a motor controlling system.

2.The set adopts the upper tractor for 360°continuous rotation, which is more stable than the rotation of a normal die head and the film is coiled flatter. Due to the upper tractor, the work of cleaning the screw and the residual material in each channel after machine halt can be prevented. As for the normal rotatable die head, it is required for dismantling the complicated rotating part.
　　
3.Both the screw and the machine barrel are made of superior alloy steel- 38CrMoAL. After finish machining, the parts are hardened through nitrogen treatment, so they have the advantages of high hardness, wear resistance and corrosion resistance.。
 
4.Adopt a new type screw, which length-diameter ratio is 28:1. The screw is especially adapted for mixing and plasticizing the PVC, which has the disadvantages of high melt viscosity and bad thermal stability. The screw can strengthen the degree of plasticification.
 
5.An automatic temperature control system provided with a digital display is used for controlling the heaters and machine body cooling fan in order to enable the temperature during plasticization to be stable and accurate and enable the plasticization to meet the requirements of film production process more so as to ensure the quality of heat shrinkable film.
 
 
6.Both the die head and the air ring are specially treated to make the plasticization and cooling effect better.
 
7.The internal surface of die head is mirror polished and plated with hard chrome so as to reduce the film splits and increase the service life of die head.
 
8.The set has the advantages of compact structure, high degree of automation, centralized control and easy operation.
 
Major Technical Parameters
 

 
Type
SJ-50
SJ-55
SJ-60
 
Performance
Material used
PVC
Thickness (mm)
0.02-0.08
0.02-0.08
0.02-0.08
Width (mm)
70-300
150-500
200-700
Output (kg/h)
8-40
15-50
20-60
 
 
Extruder
Bolt dia. (mm)
Ø 50
Ø55
Ø60
Ratio of length and dia. 
28:1
28:1
28:1
Motor of host machine (kw)
11
15
18.5
Heater capacity (Kw)
10
13.7
18.5
Die head
Diameter (mm)
Ø60/80
Ø60/120
Ø80/140
Electro-thermal (Kw)
1.8/2.2
2/2.5
3/3.5
Rolling machine
Rolling ability (mm)
Ø 400X400
Ø 400X600
Ø 400X800
Rolling motor (kg/nm)
10
15
20
Others
Weight (T)
1.5
1.8
2.2
Size (M)
4X1.4X2.5
6X2.5X3.5
6.2X2.7X3.8

 

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