Fixing used Rotary cutter blades

   / Fixing used Rotary cutter blades #1  

BBerni

New member
Joined
Jul 18, 2011
Messages
4
Tractor
MF135 (1975)
Hi,
I own an old rotary cutters where the 4 blades are used. I want to load up the cutting hedge before sharpening but I not sure what rod type I should uses
Blades thickness == ½ in
Any suggestion?

Thanks a lot.
 
   / Fixing used Rotary cutter blades #2  
Buy new blades! It's not worth the risk. The heat could damage the blades, and then they come apart.:eek: Just not worth it to me.
 
   / Fixing used Rotary cutter blades #3  
Buy new blades! It's not worth the risk. The heat could damage the blades, and then they come apart.:eek: Just not worth it to me.

What he said. If you've ever had one break or come loose, you'll not even consider welding on them.
 
   / Fixing used Rotary cutter blades #4  
Yep. Like the others said replace them. Too easy to start a crack and have a piece get flung off at high speed. Could go through a car door, or the side of a house. Won't do your tires any good either.
 
   / Fixing used Rotary cutter blades #5  
Definitely don't weld them.

Larger gouges/etc. can simply have the gouged edge sharpened, they will still cut just as well.

Past a certain point they need to be replaced. They are not that expensive and last a long time.
 
   / Fixing used Rotary cutter blades
  • Thread Starter
#6  
Got it!

Thanks
 
   / Fixing used Rotary cutter blades #7  
Have to agree, don't weld them.

I run a couple batwings and large fixed deck mowers. as much NOT-FUN as it is to buy6 blades at a time.. it's better than welding one and have it fly out the side or back of the mower and thru a concrete wall and thru the occupant and thru another wall.. yada yada

I seen a blade shoot out go thru a 500$ tire and hit a tree in a field.. and that one wasn't welded. just freak acident!
 
   / Fixing used Rotary cutter blades #8  
Hmm we have had a local welding shop build up the tips of our bushhog blades since 1969 and never had a problem . They add about 4"s where we have a longer wear period . The look like a one sided axle . It's cheaper for us to just have two sets of blades and have them retipped than buy new all the time . And we get long life out of the retipped blades on staying sharp . Not sure on the steel that's used but it stays sharper than new blades .

Sent from my iPhone 5 using TractorByNet
 
   / Fixing used Rotary cutter blades #9  
i'm surprised they want the liability!
 
   / Fixing used Rotary cutter blades #10  
Hmm we have had a local welding shop build up the tips of our bushhog blades since 1969 and never had a problem . They add about 4"s where we have a longer wear period . The look like a one sided axle . It's cheaper for us to just have two sets of blades and have them retipped than buy new all the time . And we get long life out of the retipped blades on staying sharp . Not sure on the steel that's used but it stays sharper than new blades . Sent from my iPhone 5 using TractorByNet

They weld a new piece on the ends? Does it wobble or shake?
 

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