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Porcupine Heating Elements
Hello Group , I kinda sit back and watch from a far . I thought I would offer to the group my Porcupine 220V 4K heating elements N6 wire ALL AMERCA MADE. I make coffee roasters but don't advertise them. I have seen many of you struggle over the years getting and making high quality heating elements. These will produce more heat than you will ever need. My machines use two of these elements in parallel . I spilt my air stream via a manifold.
The elements are 12 inches long but need to be stretched to 18 to 24 inches
Hmm the pictures don't load
Make sure you don't 'preview' the post with images before posting it. Previewing somehow removes the images. Also make sure they meet the file size limit.

Looking forward to the pictures though. I've always struggled with the heating for bigger electric air roasters.

And welcome ThumbsUp
Koffee Kosmo


koffeegrounds wrote:

Hmm the pictures don't load

It is important to ? Reduce the size of images and also what greencardigan said

I home roast and I like it. Designer of the KKTO
Roaster Build information
Blog -

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
It looks like the maximum attachment file size is now 10MB. (It was 268K). Not sure why it changed.

Make sure there are no spaces or strange characters in the file name.

Please PM me if you are still having trouble.
JackH attached the following image:


KKTO Roaster.
element pictures
koffeegrounds attached the following image:
My roasters will handle 8 lbs with ease stretch it to 10 lbs if you want I keep my air volume low 110cfm split stream , then back into the combine manifold to the roasting chamber. I have element protectors that wont let them be turn on without the blower on or you will toast the beans . These elements will handle the extreme shock and vibration of the high cfm blowing over them.
They look good. Is there anything to stop adjacent loops touching? Or is the N6 wire stiff?

Do you do any elements where both connections are on the same end?
It is not possible in the inherit design/ manufacturing process of a porcupine heating element to terminate the ends on one end. these type of heating element are in the largest blast furnaces and your huge industrial air handlers. I have to order them in huge lots to get them to consider even taking my order and then I have to wait for a even bigger Company to place their standard stock order and I get the tail end of the run. when you stretch the element, they do not touch , as long as you maintain one element width between each coil it will last you a very long time. These will last you on a min. of 1000 lbs assuming that you have mounted them correctly.
koffeegrounds attached the following image:
Sorry for not being clearer , the white tubes are Aluminte Ceramic good to 2000 F , the white core rod is Aluminite also , you stretch the elements out and use Clay kiln element fixing wire to secure the element to the ends of the center rod on each end. You can make you own tubes using no bake refractory clay and a 3 " stainless Pipe with a 1/2" pvc pipe center core and pack the no bake refractory cement down the tube and let it set up for 36 hours before you remove the center pipe.
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