September 8 thru 13, Chicago
Lucifer Furnaces will be there.. hope to see you too!

Lucifer Furnaces makes box furnaces:
Red Devil Series - economical well built, long lasting furnaces
7000 Series - general purpose box furnaces - built as bench or floor models
5000 Series - large, heavy duty box furnaces
LI Series - fiber lined box furnaces for lower power use and faster heat up

"Often imitated, never duplicated"....even true in the furnace industry.
and "the devil's in the details"  ... that's a good one!
choose wisely....

Great discussion on NADCAP  in today's Heat Treat Forum. Lucifer Furnaces is also asked..."Can you build a NADCAP furnace?"  In short:  furnaces aren't certified, companies are.  If your company wants a NADCAP certification, or accreditation, your company needs to document your process.  What you might need to show is that your heat treating chamber is uniform +/- a certain temperature range...  There are certain uniformity specifications you may be required to meet.. for example AMS 2750.  It's important to communicate to whomever builds your furnace if you need to meet uniformity requirements.  

What exactly is a Dual Chamber Furnace?

Dual Chamber furnaces typically have an upper chamber for hardening parts conveniently stacked above a lower tempering oven for stress relief.  Both chambers are the same size.  There's room below for a rolling quench tank as well.  Dual Chamber furnaces are great when the shop floor is crowded because of their small footprint.  The furnace pictured here has a manual vertical lift door.  While some furnace manufacturers may have 2 separate units on a cart like structure, Lucifer Furnaces make a sturdy, one piece dual chamber unit with heavy gauge reinforced steel for a much cleaner, longer lasting piece of equipment.  

Series 8000 - Lucifer Dual Chamber Furnaces