Looking for heat resistant rollers
Looking for heat resistant rollers
(OP)
At our facility we use a furnace to clean excess plastic from our extrusion heads. The heads are disassembled into 2-3 pieces each weighing approximately 200 / 250 lbs. The furnace is equipped with a shelf, really nothing more than a heavy steel grate, which slides out to allow the loading of parts. Because of the weight of the extrusion head pieces the maintenance crew have to slide / push / manhandle the pieces into place atop the grate, a process requiring at least 2 men and considerable effort.
What I am looking to do is redesign the grate to include rollers, something along the lines of a gravity conveyer arrangement.
What I am concerned about is the high heat these rollers would encounter. Depending on the amount of excess plastic the extrusion heads could be inside the furnace for a couple of hours or more.
Does anyone have any experience, or suggestions, on rollers that could handle this application?
BTW, I've tried the furnace manufacturer, but they have nothing to offer.
Thanks
What I am looking to do is redesign the grate to include rollers, something along the lines of a gravity conveyer arrangement.
What I am concerned about is the high heat these rollers would encounter. Depending on the amount of excess plastic the extrusion heads could be inside the furnace for a couple of hours or more.
Does anyone have any experience, or suggestions, on rollers that could handle this application?
BTW, I've tried the furnace manufacturer, but they have nothing to offer.
Thanks





RE: Looking for heat resistant rollers
Normally if you can machine a few rolls and tracks out of 304 grade material and use it in you application a fair amount of idea can be obtained.
RE: Looking for heat resistant rollers
RE: Looking for heat resistant rollers
Here is some furnace that are similar to ours. all the larger furnaces are loaded by carts on tracks. The tracks have a removable section that allow the doors to operate.
http://ww
RE: Looking for heat resistant rollers
RE: Looking for heat resistant rollers
The link you provided is from the manufacturer of our furnace. We have the IGG-27F model. Just like in your application, our furnace comes with the cart that rides atop the 2-legged track section. The problem we are having is getting these very heavy and cumbersome work pieces from atop our own maintenance carts and onto the furnace cart / shelf. If the furnace shelf had a series of rollers already installed then it would be a simple matter of positioning the piece and rolling it over.
RE: Looking for heat resistant rollers
On our next to largest furnace we use an traveling electric monorail to load large sections of bulky jacketed polymer pipe with no problems. On our largest which is located some distance from the operating area we use boom trucks to load and unload the cart.
Also loaded with an electric monorail is the flite screw furnace. On the long flite screw furnace we have both CI and Steel rollers with replaceable shafts. The only problem I can recall was the shafts wearing the supports on each end. This was solved by welding a "U" shape clip made from Astralloy to the support rail for the shafts.
I can't see a problem with using CS for rollers if you will not be point loading any of the rollers. Just make the shafts short to take out a little bending moment.
RE: Looking for heat resistant rollers
RE: Looking for heat resistant rollers
check their website
www.uniquetechnologies.com
Russell Giuliano
RE: Looking for heat resistant rollers
RE: Looking for heat resistant rollers
Cylindrical rollers located in channels should need little if any lubricant.
Regards
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