njection molding machine for bottle cap

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Strong power
Quick responsiveness
Stable and controllable injection
High rigidity clamping mechanism
Special high effciency screw
Automation integration solution


Ningbo LiSong Injection Technology Co.,Ltd.       FA 650
Model description                    650/910-6400
International size description       6500-6400
Clamping unit                  650/910
Clamping force                     [KN] 6500
Locking force                     [KN] 7150
Max.mould opening strocke         [mm] 900
Min.mould height                   [mm] 330
Max.mould height          [mm] 1000
Max.daylight [mm] 1900
Mould platen(h x v) [mm] 1310x1220
Distance between tie bars(h x v) [mm] 910x820
Ejection stroke [mm] 180
Ejection force [KN] 130
Injection unit     6400
Screw diameter [mm] 90 95 100
Screw geometry   special
L/D ratio   23.2 22 20.9
Spec.injection pressure(up to 400℃) [bar] 1914 1718 1550
Max.cylinder head volume [cm³] 3340 3721 4123
Max.shot weight(PS) [g] 3039 3386 3752
Max.Rate of injection    
>without accumulator [cm³/s] 942 1049 1162
Injection Speed    
Under 1000bar injection pressure  
>without accumulator [mm/s] 148 148 148
Plasticising rate(PS)    
>motor 1(120bar)2) [g/s] 71.8 80.5 86.5
Max.screw stroke [mm] 525 525 525
Max.nozzle dipping depth(SVO) [mm] 50
Hopper capacity [ltr.] 110
General data     650/910-6400
Oil tank capacity [ltr.] 880
lnstalled electrical rating    
>pump [≈ KW] 63.5+53.5
>heating capacity of screw cylinder [≈ KW] 51
>capacity with electr drive [KW] 168
Net weight(without oil) [≈ Kg] 27000
Machine dimensions(lxwxh) [≈ m] 9.7x2.35x2.75

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The working principle and structure of the injection molding machine


1. Working Principle

The injection molding machine is a special plastic molding machine. It utilizes the thermoplasticity of plastics. After heating and melting, high pressure is applied to quickly flow into the mold cavity. After a period of pressure and cooling, it becomes plastic products of various shapes.


2. Structure

Injection molding machine usually consists of injection system, clamping system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system, etc.


The Usage of Injection Molding Machine

Injection molding machines can be used in different ways. We can use it to make many products, such as mobile phone shells and some mechanical parts, water bottles, plastic tables and chairs, electric kettle, mouse and keyboard, hair dryer and so on.


Injection molding machines are more widely used in the production of bottle caps. Which injection molding machine should be used for injection molding of various bottle caps in our daily life? The answer is not fixed, because many models can meet the injection molding requirements of bottle caps, but generally the large type is vertical injection molding machines. Vertical machines are divided into standard machines and disc machines. We can choose the types according to the actual injection material, injection size, and injection efficiency.


  • In terms of material division, PP and PE are generally used for injection molding of bottle caps. Both of these plastics are thermosetting plastic materials. The injection molding effect is good, the injection molding process is relatively simple, and the functional requirements of the vertical injection molding machine are not high.
  • In terms of size, we can choose standard machine or disc machine.


In a word, Bottle cap play an important role in food and beverage packaging, and it is also the place where consumers first come into contact with the product, so it is very important to choose a good injection molding machine to make bottle caps.


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We hope be your first choice, plz feel free to contact us.


bulk customized wholesale buy high quality Injection molding machine for bottle cap wholesaler,manufacturer,supplier,factory,exporter for sale


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