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2-layer PE stretch film Co-extrusion machine

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Model:serise

Specifications

Features:

It is mainly to produce unilateral PE stretch film.

* V.F. drive for speed regulation and power saving and to insure easy operation. With counter and buzzer to control film length.

* UniqueTaiwanscrew and cylinder with independent heating zones to insure accurate heating and curing.

* Cast aluminum heaters inside the T-die to insure trouble free for a very long time.

* Unique T-die is the newest update of the key technology to insure No.1 product quality.

* At present, it is one of the best stretch film extrusion equipment inChina.

Note:

Cooling water: natural house using or workshop using water.

Glue: Natural dropping by a tank with a hole, very small quantity (0.3-0.5%) or even no glue.

Advantages

 T-die employed a double-flow saving design. The film is even in thickness and adjustment is easy. Heaters are made of cast aluminum to insure less trouble and the T-die has been updated to insure NO.1 product quality.

Top screw with independent heating zones to insure top curing and accurate heating and even extrusion quantity.

 Employed a top temperature control system for curing process control, film thickness and smoothness control.

Film thickness is controlled by the screw and V.F. drive and pull speed.

Cooling roller with a diameter of 350mm and double-loop cooling system. Computerized analogue temperature control system of the cooling roller is optional. The optional item may make the film more smooth and even in thickness.

Main Parameters:

Screw Diameter:φ55/φ65MM

Screw L/D:30:1

Screw rotary speed:20-150rpm

Production:30-85kg/h

Total Power:44KW

Heating Power:15KW

Nominal driving Power:18KW

Auxiliary roll length:1250mm

Dimension:L*W*H  6200mm*1800mm*2300mm

 Machine main structure

 Main machine Parts

Die, changer screen, contactor, Cylinder and Screw , gear-box, reducing-speed motor, Main motor

 Auxiliary Parts

It has four smooth Roll and transmission structure, Rewinder, Edge-material recycling structure, Slide base

and Circular cooling device.

Electric controlling parts

It made up cylinder heating and Die heating, and Automatic temperature control, automatic frequency

conversion, Auxiliary machine frequency conversion.

Machine Installation

     Installing the machine on level cement floor, weight capacity >= 1.8Tons/m2, expect the machine occupy area, it should have the enough spare to machine round and machine top, so the operator can  exercise.

Machine Test and running Procedures

     The machine operator must know the structure of stretch film machine and operating procedure, strictly test the machine as follow:

Gear-box need add the 30# machine-oil, arrive the prescript oil-face, check each running parts, reducing-speed motor and belt wheel, look the rotary condition, but pay attention to cylinder, if it has the material in cylinder, after heating, and running.

 Check the circuit contact, the contacting address, and power supply.

To start the heating system, adjust the temperature of each request, after heating for 90 minutes, start the main machine, the auxiliary motor, check the direction of rotation, such as steering error, so you need to adjust the power-supply phase, up to it is correct, you can produce.

To confirm the operating temperature of each heating section according to the processing of raw materials, set each temperature meter’s controlling range, connect the power-supply and heating main machine.

Check the hopper with or without debris, all moving parts are flexible or not, adding plastic granules into the hopper until the heating parts arrive operating temperature. Low speed to start the main motor ,slow to accelerate speed arrive working speed, start the auxiliary machine, open the cooling water , pulling film strip to the auxiliary machine’s light roller, as shown in method , to adjust gap of the die and work space to make the product thickness uniform , rewinding is neat .

The die-head adjustable way: the thick place of film, to clamp screws, the thin place of film, to relax screw, adjustment gap of the die, and appropriate adjust to the temperature, so that the thickness of extruded products and  high degree of transparency to meet customer requirements

Die parts: two size temperature is 220℃(2 zone), middle of die , the temperature is 215℃(5zone)

   Changer screen contactor: 220-230℃    Dispatcher 220℃

   Cylinder: 1. 225℃  2. 220℃  3. 200℃  4. 180℃

The stop order is: first stop Main machine and then stop the auxiliary, and finally cut off the power

   Lubrication

 Gear-box need add the 30# machine-oil ,Lubrication of this machine please refer to the lubricating picture. The white felt in the protective cover in the left of the material winder is oil forbidden. When the machine has been stopped for over one day, you must clean up the ink roller with a soft brush, clean the rubber roller and resin substrate. You mustn't discretionarily beat, score and hit the surface of the roller. Often keep the roller's surface clean.

 Cautions

a)      Main machine don’t allow operation when raw-material is empty (without the raw-material), strictly to forbid run when temperature don’t arrive set temperature, so that the screw make the barrel damage.

b)      The filter of Contactor should be changed frequently, clean up please look at method diagram, get a assurance in plastic purity and product quality.

c)      Electric lap (board) of Barrel and die should be installed with good porcelain bushing to prevent electric shock.

d)      The temperature control wire must be connected with the barrel and die, in order to ensure the accuracy of the thermal conductivity and the thermometer

e)      Check machine’s gear box lubrication condition.

f)       To the electrical control cabinet of a variety of instruments , in particular, temperature control instruments should be inspected regularly and proofreading , to prevent the error indicates so that to cause the quality accident

g)      The auxiliary machine’s roll must be parallel and surface roughness, to prevent surface scratches and bend

h)      This machine is equipped with 550mm, 580mm, 620mm, 1000mm , 1250mm kinds of specifications’ die for the user to choose one , in order to ensure product width under the premise of reducing waste

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Dong Guan Golden Harvest machinery Co.,Ltd

  • China (Mainland)China (Mainland)
  • Manufacturers
  • Mr.sam shen
  • +86-0769-83207715
  • +86-0769-83207601
  • 2nd industry zone, ShaBu village, DaLang Town, DongGuan city

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