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Material for Heat Sealing Tool

04/19/2010 4:59 PM

I want to fabricate a heat sealing tool for sealing pet laminated PE film bags. Required sealing temperature is 160 - 180 deg C. Please suggest suitable grade of steel.

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#1

Re: MATERIAL FOR HEAT SEALING TOOL

04/19/2010 5:18 PM
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#10
In reply to #1

Re: MATERIAL FOR HEAT SEALING TOOL

04/24/2010 2:08 PM

I tried this but it fails for speed production.

Maintenance is high.

Specially transformer get failed.

Please tell me solution.

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#11
In reply to #10

Re: MATERIAL FOR HEAT SEALING TOOL

04/25/2010 2:43 PM

Hello, sandeep.

This is an image of a continuous heat sealer:

The image shows packages of scissors running through the machine, sealing the open end in a continuous motion. Keep in mind, heat sealing does not work with all clear bag material. Is this the type of thing you have in mind?

If yes, tech data for this machine here.

This not an endorsement for this particular machine or manufacturer...you can google continuous heat sealer and find a number of other types and sizes. My experience is limited to the machines similar to those shown by lynlynch in #1.

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#12
In reply to #11

Re: MATERIAL FOR HEAT SEALING TOOL

04/26/2010 1:23 PM

Thank you,

I will try for this one.

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#2

Re: Material for Heat Sealing Tool

04/19/2010 6:18 PM

Ya know, maroofyemen, the internet NEVER ceases to amaze me.

I Google searched the words "how to make heat sealer", fully expecting to get a few indistinct hits, but look what I find:

http://www.instructables.com/id/How-to-Make-a-Heat-Sealer/

Is this information of some use to you?

As a post script, I didn't think lynlynch's offer was that far off topic. This sort of question usually gets little attention at all.

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#3

Re: Material for Heat Sealing Tool

04/19/2010 11:40 PM

That temperature range isn't a challenge for any steel. If you don't want it to rust, I would suggest 304 stainless steel. Resistance heaters are often made of nichrome (which is not a steel) and that material will last virtually forever at the temperature you are contemplating. A big part of the decision is related to how rapidly you want to heat and cool the sealer.

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#8
In reply to #3

Re: Material for Heat Sealing Tool

04/21/2010 4:06 PM

Yes you are right that temperature range is not a challenge.In fact I had used SS 304 but after use of 3months thermal conduction property of it was changed.It was not uniform.So I guess this is not a correct material.Our machine is sealing 35 pauches/min. Hope, you may be able to assist.Thanks

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#9
In reply to #8

Re: Material for Heat Sealing Tool

04/22/2010 1:43 AM

Sticking with my disclaimer that I know nothing about this sort of thing.

I'd be very surprised if the properties of the steel changed: it's much more likely that the interface between the heating element and the steel changed/moved/started to break down.

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#4

Re: Material for Heat Sealing Tool

04/20/2010 2:40 AM

I don't know anything about this sort of thing so just ignore me if I'm being stupid, but, I bet they cover the "blades" with something non-stick like teflon to ensure that the polyethylene always comes away cleanly.

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#5
In reply to #4

Re: Material for Heat Sealing Tool

04/20/2010 10:23 AM

Not withstanding the OT vote for my first response, I do know something about heat sealing.

You are correct. Teflon impregnated glass cloth tape is used for this purpose.

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#6

Re: Material for Heat Sealing Tool

04/20/2010 11:08 AM

Check with a camera supply dealer. Photographers use a small hand iron to seal laminates on photos. Also an old clothes iron with variable temperature settings would work.

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#7

Re: Material for Heat Sealing Tool

04/20/2010 7:18 PM

And then you could buy a ready made heater for your Applicaton! There are companies that make them! Both rotary and momentary contact

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Users who posted comments:

Anonymous Poster (1); Doorman (2); jmart23 (1); lyn (2); maroofyemen (1); Randall (2); sandeep lokhande (2); welderman (1)

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