Author Topic: Conveyor cool down?  (Read 5813 times)

Offline Gilligan

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Conveyor cool down?
« on: October 18, 2011, 10:35:26 PM »
Do any of you guys let your dryers "cool down" and just turn off the panels while the belt keeps rotating and fan keeps running?

I guess I just worry about the belt just cooking under those panels while still 800+ degrees.


Offline Nation03

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Re: Conveyor cool down?
« Reply #1 on: October 18, 2011, 10:37:00 PM »
Absolutely. All dryers should have a venting or cooling mode standard. I usually let the belt run for a good 10-20 minutes without the head on before I shut the belt off.

Offline Prosperi-Tees

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Re: Conveyor cool down?
« Reply #2 on: October 18, 2011, 10:39:02 PM »
Your dryer at minimum should have seperate on/offs for the belt and the elements and you should let the dryer cool down for 10-20 minutes so the belt doesn't melt.

Offline Gilligan

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Re: Conveyor cool down?
« Reply #3 on: October 18, 2011, 10:45:46 PM »
I have been doing that... tonight I shut it all off when panels dropped to 600... oops... hope that was long enough.  From now on I'll keep it rolling longer.

My control panel controls all heat, the recirculate fan and belt.  Main vent fan is always on when the main breaker is on.

Offline Donnie

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Re: Conveyor cool down?
« Reply #4 on: October 18, 2011, 10:52:50 PM »
I usually turn my dryer off when the panels get below 300 or if I'm in a hurry to leave, I put a fan in one end after I turn off the heat.

Offline stitches4815

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Re: Conveyor cool down?
« Reply #5 on: October 18, 2011, 10:58:27 PM »
I shut my panels off, leave the belt running while I am folding.  When I have the shirts boxed up the panels are usually cool enough to shut the belt off.  If it is a short run I will tear the press down after the shirt folding is completed.  By then the panels should be cool enough.

Offline Denis Kolar

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Re: Conveyor cool down?
« Reply #6 on: October 18, 2011, 11:06:34 PM »
Fan is a nice thing to have around :)

Offline asdprints

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Re: Conveyor cool down?
« Reply #7 on: October 18, 2011, 11:15:09 PM »
I have an Economax II. When I hit the stop button it turns off the panels while the belt continues to run. When it cools to 300, it shuts down completely. I have never had to replace a belt, but I imagine they are expensive. It takes about 12 minutes from the time I hit stop till it turns off. Yep, fans help.

Offline Gilligan

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Re: Conveyor cool down?
« Reply #8 on: October 18, 2011, 11:35:22 PM »
Bah!!  And I had a fan right next to the dryer... why didn't I think of that!

Offline bimmridder

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Re: Conveyor cool down?
« Reply #9 on: October 19, 2011, 07:53:39 AM »
Nice thing about my M&R dryers. You shut them off. They cut the burner, and then blower runs until the temp is 150. Never a worry.
Barth Gimble

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Offline inkman996

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Re: Conveyor cool down?
« Reply #10 on: October 19, 2011, 08:15:05 AM »
I have been told 200 or less is ideal, I do not remember why but it also had something to do with the metal workings not just the belt. Either way if your dryer has blowers and you need it to cool faster throw them on as well it will help a ton evacuating the heat.
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Offline GraphicDisorder

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Re: Conveyor cool down?
« Reply #11 on: October 19, 2011, 08:22:01 AM »
Nice thing about my M&R dryers. You shut them off. They cut the burner, and then blower runs until the temp is 150. Never a worry.

Same here, love that about our dryer, hit a button, cut the gas and walk away.  We often walk out of the shop and lock doors 30 seconds after turning ours off.  Never a worry!
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Offline Sbrem

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Re: Conveyor cool down?
« Reply #12 on: October 19, 2011, 08:36:10 AM »
Ever since I can remember, yes. However, we have an old Cincinnati Red Demon in which the elements are quite high off the belt, and that one we shut the belt down at the same time. Same belt for the last 15 years or so, and it's in good shape.

Steve
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Offline mk162

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Re: Conveyor cool down?
« Reply #13 on: October 19, 2011, 08:37:26 AM »
Ours keeps the blower running until it reaches around 250.  Then the belt keeps going.  I wish that shut off as well.  The dumb thing about our oven is there is no off switch.  I didn't realize at the time that is was an option.

So I installed a 3-phase disconnect box next to the oven control panel.

Offline 244

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Re: Conveyor cool down?
« Reply #14 on: October 19, 2011, 09:50:46 AM »
I have an Economax II. When I hit the stop button it turns off the panels while the belt continues to run. When it cools to 300, it shuts down completely. I have never had to replace a belt, but I imagine they are expensive. It takes about 12 minutes from the time I hit stop till it turns off. Yep, fans help.
All dryers made by M&R have an automatic cooldown system. On dryers larger than the Economax they also have a crank to turn the belt in case of power failure as well. This feature was added about two years ago. As an FYI the belt material should be fine up to around 550F. I would still run the conveyor just to be safe though.
Rich Hoffman