Rotary Cutter dual mulch blades

[OrangeToys]

I've seen on some of the batwing cutters you can double up your blades to get a mulching affect. So that got me to wondering if you can do the same to the smaller decks too? I run a bb72x but I can't find anywhere that's says you can or can't. Has anyone tried it?

 

[countrybumpkin]

I too seen one the other day and wondered the same thing.

 

[OrangeToys]

Anybody with experience

 

[94BULLITT]

I've heard of guys doubling up on blades on ZTR's.

 

[orangeandgreen]

I run double blades on my lawn mower when the grass is really growing fast in the early spring to prevent stragglers.
Doubles on a rotary cutter would depend on the design of the stump jumper. If the stump jumper is a full heavy disc, it might be as simple as drilling 2 more holes to add the additional blades, I have seen these on several heavy duty cutters. On the other hand, If the stump jumper is heavier where the current blades attach and light where the new ones would attach, it isn't going to work.
We have a 7' Sidewinder that has a thick solid stump jumper, and a 10' Woods that has the stump jumpers U bolted to the bar that attaches the blades.

 

[countrybumpkin]

This is the way the ones I've seen mount.

 

[FTG-05]

I installed dual blades on my 38" JD lawn mower/tractor years ago. It worked great until I hit an unseen and hidden steel fence post and tore up two of the blades.

Where I live now, I really need the dual blades, it would work much better than the single blades I have now.

Just make sure that your bolt (or whatever fastener used) is long enough to accommodate the dual blade thicknesses.

Good luck!