Dear All,
i am starting a new specialty coffee roastery and we have a local manufacturer that builds a coffee roasting machines and i can customize and add whatever i want to the machine.
my machine will be 15 kilos with 4 motors.
the face and the back of the drum will be cast iron.
Bottom fired, natural gas.
and i have these questions:
what is the best Drum material?
How thick the drum wall should be?
if i want to make a double wall drum, what is the thickness of the 2 walls and what is the space between the 2 walls should be?
what is the deference between Burner atmospheric, power burner,infra-red or recalculating??
Amount and size of Exhaust??
How the blades must be configured ??
Chaff collector designs??
Push or Pull exhaust systems??
if any body have a pictures of the roaster design please provide me with.
thanks for all.