The question seems to be, is it possible?
Is 25 cord in five hours possible with the Eastonmade 22-28?
It's a math story problem.
18" rounds? 22" rounds? 7 second cycle time; seven guys working.
Lets assume 16" cuts for length, and 50% actual spitter work, or cycle time.
Volume of a cylinder formula: V = 3.14 (r x r)h
volume per 18" round = 3.14(9x9)16" = 4,069.44 cu. in./1,728 cu. in. per cu. ft.= 2.35 cu. ft.
Hmmm. I do not know how to convert that to cords.
However, picture 1/3 cord being 4' high x 8' long x 16'' wide.
If you picture 12" rounds, it takes 32 pieces, and totals 33.28 cu. ft..
Same rack with 24" dia. rounds you get 8 pieces totaling 33.44 cu. ft.. (V = 3.14(12x12)(16) = 4.18 cu. ft. each.
Same rack with 48" pieces totals 33.48 cu. ft.
Lets use 24" dia. x 16" = 33.44 cu. ft for 1/3 cord; times three is 100.32 cu. ft. per cord and the rest air space, or 27.68 cu. ft air, none of which matters.
What I was looking for is the number of 24" dia. x 16" pieces per cord, which is 8 x 3 = 24 big pieces per cord.
24 pieces per cord x 25 cord = 600 pieces.
600 pieces x 7 sec. per piece = 4,200 seconds of cycle time.
60 min. per hour x 60 sec. per min = 3,600 sec./hour
4,200 sec./3,600 sec. per hour = 1.16 hours or 1 hour and 10 minutes piston time.
Working backwards: 600 pieces in 5 hours = 120 pieces per hour.
That's two 24" rounds per minute.
Seven guys... you can rotate out and take breaks, etc.
Yep, it's doable...even with cell phones, cigarettes, and refueling.
Okay 18" rounds = 2.35 cu. ft. of wood
From earlier, 100.32 cu. ft of wood per cord, the rest air space.
So 100.32/2.35 = 42.68 rounds per cord...x 25 cord =1,067 rounds/5 hours = 213.4 rounds per hour/ 60 min. per hour =3.55 rounds per minute. or one every 15 sec.or less.
If it is a seven sec. cycle time the machine can do 25 cord in five hours if not re-splitting.
This assumes 16" lengths.
24" lengths would be 1/3 the number of rounds to split and 1/3 less cycle time.
The beauty of the machine is that it comes with an oil cooler, and there is a box wedge option that slides on/off.