Surface Heater Suppliers

Hello, Please sign up.

to answer your question try this search.

Other wise Watlow, Temco, Omega and others.

The only endorment I'm giving is I have used them.

Charles

I did a search, that was my first option. There was nothing of value that came up unless I want to floor heaters.Watlow didn't really have what I was looking for unless I wanted to use silicone heaters, and I do not. I will take a look at temco and omega.

OK, how big a table are you trying to heat? Just looking at Watlow's catalog they have cable heaters in various sizes and lengths , ceramic fiber heaters in small to large panels.

Watlow and other suppliers have tech help you can call to find the best product for your application.

You would need controllers and solid state relays to regulate the temp also. You should insulate and shield the bottom of the table for efficiency and safety and have the whole thing grounded in case something shorted to it.

Now if you are looking for a cheap and dirty way to heat. You could use the heating elements out of a electric stove/oven attached to the bottom of your table. Although you would still need all the other stuff like the controller, relays, insulation and shielding and high temp wiring to hook it up with. Not to mention you would have the potential for very hot spots depending on how you attached the elements.

Also the placement of the controllers temp probe you would need to allow for heating/cooling lag on the table plus what you are doing on the table that could be sensitive to the thermal variation.

With this all said, I think you should use the company of your choice and there tech help. I'm sure they had someone else do something close to what your doing.

Best to spend time and money wisely verus doing it and not working like it should and having to do over, or be unsafe to the process or who is using it.

Charles

Google strip heaters they would easily bolt to bottom of table.

There are flexible wrap-around drum heaters:

http://www.mcmaster.com/#band-heaters/=4k7ivw

Maybe you could attach some of these to the bottom of the table?

Controlling the surface temp of the table to 115ºF will be somewhat of a challenge though. How even and accurate does it have to be?

Mike

Consider inductive heating.

The table size is 4' x 12', and the temp. needs to be maintained withing +-2 degrees. I have tried strip heaters and flexible style rope heaters, and both are not cutting, too much hot spotting. As far as the control system, I have a good idea of what I'm going to do using some fast acting thermocouples, and temp. controller, and some solid state relays. I will have either 4 or 6 zones depending on the size of the heater I go with. I am just in need of a large maybe 2' x 2' flat heating element rated for continuous duty. I did call watlow,but maybe I didn't talk to the right person.

Hello.

First of all you may need a good PI(D) temperature analogue output controller - not on-off zone controlling. The choice of the type of heaters seems to be of less importance.