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Kenplas Forum ==> Injection Molding (Machine) ==> Cracking of pet preform while moulding
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Dear Jayesh
1. A picture of the defective preform / Bottle would help.
2. Also the preform wt.
3. Bottle Volume,
4. History of Preform
5. Blowing machine.

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2011-11-25 17:13:16 By tajdar khan
i have a problem in my preform
while the blowing get the irregular perfection

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2011-11-24 12:51:00 By jayesh
i want know mini pet bottel machi

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2011-10-22 20:01:09 By imran
I WANT TO HAVE A PLANT OF PET BOTTLES
CAN I KNOW THE PROJECT COST OF PRODUCING

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2011-10-22 19:59:39 By imran
I WANT TO HAVE A PLANT OF PET BOTTLES
CAN I KNOW THE PROJECT COST OF PRODUCING

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2011-5-8 21:23:24 By ASHSH
CHECK RESIN DRY TIME OR MOLD COOLING

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2011-5-7 20:28:39 By KEITH
I have the same problem with my preform.It appears at random cavity. Please help!!!

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2010-12-29 22:56:00 By DT WAN
in preform making crystal will appear in preform

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2010-12-17 1:48:23 By farooq
i have a problem in making of preform the crystal will appear in preform

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2010-12-17 1:47:12 By farooq
Dears,
i have problem in the preform 48cavity mold,
1.the neck cavity of the frequently breaking,

2.the core cavity become bend,

please give me solutions.

This mold was not from us. Who supplied this mold should take care of its maintenance, right? -- by Kenplas Aug 29 2010

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2010-8-28 20:33:52 By Dhina
In my opinion.
May be:
- Over Hold pressure. Check the point transition and the firts and second etaps
- Water in the preforms. Check teh bolts de Neck Rings
- IV very low. Check Time injection

REGARDS

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2010-8-5 3:35:55 By WASHINGTON
Hello Aditya
can u explain more about the cracking of the preform. it is
a) Random
b) During mold opening
c) During Packing
d) During ejection

or some thing else
if u could attach few pictures it would clear the picture

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2010-7-23 1:09:53 By Tajdar Khan
How to avoid cracking of pet preform while moulding???...Please help.

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2010-5-12 17:36:23 By Aditya Hegde
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