Customized PET preform mould manufacture hot runner valve gate

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PET preform mould


Valve gate 

Pin-valve gate ,pneumatic drive the nozzle pin simultaneous high speed open and close action, which can effectively control the injection hole open and close actions on each cavity. Reliable seal function, smooth moving, low thermal expansion rate, long using life and also saves electric energy

Hot runner 

Hot runner system is designed and made by ourselves, it can achieve ideal and prompt heating effect for preform production, cavity with lower injection pressure to reduce wear and tear of moldparts

Heat system

With double heating system, it has separate temperature control mode ,the heat bar are used to heat hot-runner mainfold , small heaters supply the heating temperature for cavity nozzle continuously.

Cooling system

Each parts including core ,cavity and valve gate has independently cooling system. 

Heat treatment 

Mechanical treatment cavity and core to prolong service life ,nitrogen treatment with neck screw. with fitly operation ,guarantee Long using life over 2.0 million times of injection cycle.

Customized PET preform mould manufacture hot runner valve gate  

Mold DescriptionPneumatic, pin-valve gate, shut-off, free-cut,  PET preform mold with hot runner.
Cavity quantities6 and 72 cavities
Main mold baseP20 steel (Nitrogen treatment, HRC 28-32 degree)
Core (punch) and cavityS136  (Vacuum quench treatment, HRC 43-52 degree)
Screw neck (lip)S136
Heating plateH13 steel , Chinese standard manifold.
Heating ringROTFIL from Italy.
Temperature controllerPID voltage temperature controller
Preform mold configurationAdopted European mold structure; PET materials go into nozzle tip straightly to improve mold cycle time.Cooling system on cavity, core. If you require,we also design the cooling system on neck (slip).Preforms drop through injection machine central ejector automaticallyThe controller heat Individual cavities, runner and sprue.One Temperature zone control one point temperature.Double-locked, inter-changeable mold components;
Usage life(guarantee)2,000,000 shots
Warranty Period2 years