Rotisserie Smoker Build

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I have been contacted to build a trailer mounted rotisserie smoker that can hold 500 pounds of pork butt.  I have wanted to build a smoker for a long time.  I just didn't think the first one I build wiuld be this big.  I have a small grill/smoker at home & have prepared many different meats & vegies on it.  My main concern is to have enough surface area.  Does anyone know how many square inches are needed for 500 lbs of pork butt. I did find one thing online that 1600 sq in would hold about 120 lbs of pork butt.  I just want to make sure this is the right size.Miller XMT 304 cc/cvMiller 12RC w/ 15ft Tweco #4 GunMiller 30A SpoolgunCustom Thermal Arc TA 10/270 Generator "Thermal Star"Smith oxy/acet-propane with weld, cut & rosebud tipsAnd of course grinders, chop saws, hand tools
Reply:depends how thick it is, go for a double stack or triple stack grill if space is a concern...ask the customer how big a grill they want, thats the safest way to go...Of all the things I lost I miss my mind the most...I know just enough about everything to be dangerous......You cant cure stupid..only kill it...
Reply:500lbs = 50 - 10lb pork butts! Must be thinking big time. These guys have been at it for some time & have squeezed all the space needed to do that with the SPK-500 model. They're asking just shy of $20 grand for one. Follow the link & check videos of them for ideas ->http://www.southern-pride.com/_new/p...0&category=gasThey work really well, several in the area.Good luckMatt
Reply:The trays need to rotate inside the cooking chamber for a design like this.Just as a point of reference, my dad had a smoker that could smoke fifty 12 lb briskets at a time. It was a 750 gallon propane tank in a previous life. The single cook surface was about 3' x 12'.GravelThe difference between theory and practice is that in theory there is no difference.
Reply:He knows it will be big.  He just needs to be able to tow it with his Expedition.Miller XMT 304 cc/cvMiller 12RC w/ 15ft Tweco #4 GunMiller 30A SpoolgunCustom Thermal Arc TA 10/270 Generator "Thermal Star"Smith oxy/acet-propane with weld, cut & rosebud tipsAnd of course grinders, chop saws, hand tools
Reply:Originally Posted by osweldHe knows it will be big.  He just needs to be able to tow it with his Expedition.
Reply:Some good pictures of the outside of one on this site. http://www.cadillaccookers.com/photosHere are some other pics I found. I like the last one the best.GravelThe difference between theory and practice is that in theory there is no difference.
Reply:Originally Posted by GravelSome good pictures of the outside of one on this site. http://www.cadillaccookers.com/photosHere are some other pics I found. I like the last one the best.
Reply:Here are some pics of what I did with my little smoker last year. Attached ImagesMiller XMT 304 cc/cvMiller 12RC w/ 15ft Tweco #4 GunMiller 30A SpoolgunCustom Thermal Arc TA 10/270 Generator "Thermal Star"Smith oxy/acet-propane with weld, cut & rosebud tipsAnd of course grinders, chop saws, hand tools
Reply:Originally Posted by osweldYeah I like the last one the best.  It looks like it would hold a butt load of butts in it.  Do you know what brand that is?  All this BBQ talk is making me want to fire up my smoker.
Reply:osweldI realize this is not what you need - but it is such good lookingwork - it may serve as inspiration.http://weldingweb.com/vbb/showthread.php...ighlight=greekI am working on a variation of this.  My nephew is married to aBrazilian 'ranch girl' - she can slaughter, eviscerate, and skin a lamb with the ease - that I clean a fish.Few things: better than People Eating Tastee Animals.Opus
Reply:Originally Posted by OPUS FERROosweldI realize this is not what you need - but it is such good lookingwork - it may serve as inspiration.http://weldingweb.com/vbb/showthread.php...ighlight=greekI am working on a variation of this.  My nephew is married to aBrazilian 'ranch girl' - she can slaughter, eviscerate, and skin a lamb with the ease - that I clean a fish.Few things: better than People Eating Tastee Animals.Opus
Reply:My son bought a homebuilt unit with no rotisserie and we just tried it for the first time yesterday. Basically it's an insulated tin box about 5' high that uses a stove element in the bottom to heat the wood chips and an oven element around it to control the temp. We had it stored in my cold storage shed and it was going to be a beast to move again so we thought we'd just vent the chimney out a window. Bad plan. There was no seal around the door (despite having 2 clasp locks) so it smoked the shed up really bad. The hams and bacons seem to have come out very nice though. If you know what winter is and want it protected, build a separate shack to keep it in.250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:Originally Posted by osweldHere are some pics of what I did with my little smoker last year.
Reply:Originally Posted by GravelThe trays need to rotate inside the cooking chamber for a design like this.Just as a point of reference, my dad had a smoker that could smoke fifty 12 lb briskets at a time. It was a 750 gallon propane tank in a previous life. The single cook surface was about 3' x 12'.
Reply:Originally Posted by osweldHere are some pics of what I did with my little smoker last year.
Reply:Originally Posted by Burnt GloveI plan to build a big smoker this year. My buddy and I both think that a big propane tank is the way to go. I am worried about cutting the tank open though.