Trying to find a source for cartridge heaters?
Trying to find a source for cartridge heaters?
(OP)
We are wanting to purchase cartridge heaters in small bulk orders of 25-100. I find it odd that every place online still lists a higher price than McMaster. Does anyone here work with these heater enough to know where to get a decent price on them?
We are needing 120V, 100W, diam and length are not set in stone.
We are needing 120V, 100W, diam and length are not set in stone.





RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
http://www.omega.com/pptst/CSS_CSH.html
Sometimes, one's expectations are just not realistic.
TTFN
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RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
No guarantees on quality from me, though...
TTFN
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Chinese prisoner wins Nobel Peace Prize
RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
http:/
only increases $3 going from 1 to 20 units.
TTFN
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Chinese prisoner wins Nobel Peace Prize
RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
I've gotten stuff that were so unbelievably cheap that they had to have been subsidized, e.g., Bluetooth dongles with price and shipping for $1.50 TOTAL shipped to California. We can't even mail a first-class letter for what it must have cost to ship the dongle across the Pacific.
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Chinese prisoner wins Nobel Peace Prize
RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
Any thoughts on this? can a cartridge heater be tuned to find a happy equilibrium temp without thermal runaway? I know we were going to use a variable control on the heater to adjust it and figured if we got a low enough watt density OR used a 240V heater at 120V, we could get the watt density down to a tolerable level. Basic calcs show we might need about 25watts/sqin or 50 watts total on a heater to achieve our goal. Really not looking forward to complicating the design and add a thermocouple to the system.
RE: Trying to find a source for cartridge heaters?
TTFN
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Chinese prisoner wins Nobel Peace Prize
RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
Can a cartridge heater not sit and burn red hot in open air without failure? I just don't see much different between this and a tube or Calrod type heater that is common in an oven. That is pretty much what we are after.
I talked with one OEM that indicated our intended purpose and heat selection is already being used successfully in the industry so not sure what to think...
RE: Trying to find a source for cartridge heaters?
You MIGHT find one that may work because they designed for it, but you're not going to do so by willy-nilly picking and choosing, particularly if you withhold critical information. We've been talking about your application for two days, and only now you put out information that completely changes the picture. One can only wonder what other critical information you've been hiding.
Nichrome is very robust, and used in hair dryers without any problems.
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
Chinese prisoner wins Nobel Peace Prize
RE: Trying to find a source for cartridge heaters?
RE: Trying to find a source for cartridge heaters?
Ken
KE5DFR