Cartridge Heaters?

Caver Dave

Caver Dave

Just holdin' it down here in BFV
Moderator
Joined
Mar 10, 2005
Location
Hooterville (24171)
I have an application that calls for a heating element *inside* a double walled cylinder that's approx. 2.5" deep x .4" between the walls (1" ID x 2" OD).

My best guess is the original elements (1 had what appears to be resistance wire & the other a ceramic fixture for hold bare coiled wires) were about 1W. I need to duplicate this temp, but am having issues determining a suitable replacement (shy of paying an EE to cipher the details :shaking: ). The max "on" time is 10-20 seconds with 15-20 minutes between cycles

I found some cartridge heating elements (used to pre-heat injection molds, etc by being slid into a hole), but need to know a couple things.

  • Wondering if the cartridge isn't surrounded fairly snug by what ever it's heating, it'd be prone to burn out faster?
  • If this isn't the case, what material could I use to hold the element against the inner wall & insulate the outer... in an attempt to maximize it's output?

Answers? Ideas? :beer:
 
Here's an idea: How about a heating element for a hair dryer? iirc, they can be found the right size to fit in your application. I just don't know what wattage it'd pull.
 
peg-n-john said:
Here's an idea: How about a heating element for a hair dryer? iirc, they can be found the right size to fit in your application. I just don't know what wattage it'd pull.
Click to expand...

Possibly... but most are 500W+ and pairing them back to any lesser wattage is an issue (IIRC, the connections are all crimped/welded as solder would melt)

May end up ordering a cartridge element, "securing" it in the cavity with fiberglass insulation, & give it a test...
 
Back
Top