Robotics

speed of conveyor, area of openings on each end of the drying chamber, Material under the primer, Humidity, ambient temp, part temp, etc all these will be a factor in how hot and how fast you can dry your primer. I would contact the primer manufacturer and see if they can give you some guidelines on force drying their product. then figure out what your production rate is and speed of the conveyor, at that point you can calculate the time to heat up and how many watts and time it will take to get the part to a drying temp in the distance of the drying chamber.

Best of Luck!

Mark

I would think this would be a prime candidate for powder coating the part, and you might consider that as well. the process is slightly more costly, but also can be automated much easier.

Hi Mark,

Thanks for ur support

Speed of conveyor is 0.30 m/min (All previous dimensions r in mm)

opening area on both side is 50 mm (10 mm + from component height)

material of component is ms

ambient n part temp will be normal temp. (30c to 40c in summer and 15 to 20 in winter )

Humidity 60 to 80 %

if possible, kindly share some reference

Our Circulating Diagram will be like this

did you get any info from the supplier on their maximum allowable drying temp on their product? I suspect that will be the limiting factor.

Anchor paint's "Red Oxide" product has a max surface temp of 110 deg F. also, according to them min. temp is 40 deg F. so you should be ok even in the winter on part temp. I notice that your fresh air inlet appears to be much smaller than your open ends surface area at 40k square mm (each) this must mean that you are intending to recycle some of the air flow inside the chamber. not a bad thing as long as the chemical concentration is kept well below explosion point. How much air flow will you be recirculating? I would also recommend a change on where you are injecting the heated air from the blower motor. I would think it would be beneficial to inject the freshely heated air ( highest temp) closer to the part entry end of the chamber to help allow more time for heat soak of a cooler part and hence shorter drying time ( concurrent heating) IMHO.

I'm going to go right out and let you know that I'm not an engineer.

but will try to help as best as I can. To generate 110 deg F with any positive air flow with two open ends with a surface area of 40k sq mm (50mmx800mm), your inlet size and blower motor and heating requirements will need to account for that loss.

Each opening is .36 cubic foot or .0101 cubic meter so a total loss of .72 cubic foot per minute or.02 cubic meter/ min. (I would use this as your minimum loss for positive air flow)

Your actual heating capacity will need to be much greater than your "running" heating requirement (so you don't have to spend hours heat soaking your chamber before you begin running parts through.

I'm not sure that I can help much with the actual calculation needed for overall wattage as there are many factors involved with how you are heating the air and if you are using electricity or ? to heat the air.

Thanks I hope I have helped in some way.

Mark

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