12 Cavity plastic injection pet jar preform mould


Application: Preform mold is installed on injection machine and used for producing preforms, such as  5 gallon preforms, wide mouth preforms , bottled water preforms.

Our product range includes a wide range of pet jar preforms, 46mm fridge pet jar preform, 69 mm preform, 120mm transparent pet jar preform, 96 mm pet preform 44 gm and 28mm pet preform.

Certificated stainless steel material, and mold core, cavity, neck ring & lock ring will be processed by heat-treatment. And with suitable material, it will be better for producing highly precise, high stable quality PET preforms with at least 5Million shots guaranteed time.

Mould Feature

1. Steel material: Mold main parts adopt S136 stainless steel, with high glossy surface finish and hardness up to HRC46-50. Mold base is chrome plated P20, and the chrome process helps avoid corrosion.

2. Self- lock and shut-off individually for each cavity to guarantee high precision and less defect of the final preform production; and it is also better for maintenance and mould life.

3.Off-center adjustment system to ensure preform thickness difference < 0.05mm.

4. Hot runner valve gate is applied; no need to cut preform tail and it would save labor costs.

5. Hot runner: one temperature zone controls one point temperature; it would prevent the white defects on the preform.

Hot-runner heater adopt ltalian technology and ltalian famous brand components.


NameDescription
Preform typewithout injection tail, no need cut
Runner typehot runner valve gate
Core, cavity and neck materialS136 steel (46-50HRC)
Mold basechrome plated P20 (anti-rust)
Hot runner Heater brandItalian Rotfil
Cycle time18 to 23 s
Off-center control range+/-0.05mm
Mold structureself lock by each cavity; demoulding automatically.
Mold life5 million shots
Manufacturing time45 to 50 days

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