Combine how much extra output

So currently run a 15ft cut 5 straw walker machine (claas) thinking of going to a 20ft 6 walker machine auto level (Massey). Just wondering how much extra output I would get? Thanks JB
 

MF CI

Member
Forward speed x working width.

Then throw in things like.
How much loss over the back you're prepared to accept.
Unloading on the move or not.
Field size and number of turns.
 
Forward speed x working width.

Then throw in things like.
How much loss over the back you're prepared to accept.
Unloading on the move or not.
Field size and number of turns.
Smallest field 5ac biggest 60ac all blocks of land can keep header on to do the lot. Was thinking more a extra 5ft header how much extra it would provide? Don't unload on move.
 

Boysground

Member
Mixed Farmer
Location
Wiltshire
Look at the area of the walkers, they are not a standard width, extra impellers and movement on top of the walkers also makes a big difference. As does hp. I once went from a dominator 98 to a lexion 430, both 5 walker machines but the change in output was massive because of all the extra goodies.

Bg
 

David.

Member
Mixed Farmer
Location
J11 M40
Likewise went Dom 98 to Lex 460, night and day. As you would expect with double the hp. For two pins, I'd go down to a 5 walker lexion for easier road movement, but not really worth the expenditure.
But if you already have a 5 walker Lex, I'd say tread very carefully. 15ft currently suggests not a Lexion?
 
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clbarclay

Member
Location
Worcestershire
Engine power seems to be about as gooder indicator to compare output of any two combines. The manufacturers usually aren't too far out on how big an engine they stick on them.

Not all combines have the optimum width header on them for their output and an old 6 walker may well not match the output of a newer 5 walker.
 
If you are going from an older Claas to an older Massey a big part of potential output would be if it has a rotary separator and a power flow table. Plenty masseys about with neither, less to go wrong and less maintenance but comes at a cost of output.
 

PSQ

Member
Arable Farmer
Header width doesn’t increase capacity of the spot work rate*, it just changes the forward speed of the combine required to feed a constant volume up the intake trunking.
(* less turning / time out of work with a wider header, but same throughput in T/h spot rate narrow or wide).

The important bit is the increase in concave, sieve and walker area, and whether you’re moving from a Claas with APS to an MF that doesn’t.
 

will_mck

Member
Went from a 5 walker 15ft tx 32 doing 25ac/day to a 6 walker 20ft tx 66 doing 40 to 50ac/day. Same design of combine only the width of one straw walker extra
 
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