We bought a new Great Plains Turbomax about this time last year.  We ran it over a 100 acres of corn stalks last fall, and it's done about 2200 acres of field work this year.

We're surprised how much the coulters have worn. 

We had a couple break.  We bought two new ones to replace the broken ones.  There's an inch-and-a-quarter difference diameter between the new ones and the worn coulters.  This was off of the front gang.  Perhaps the rear gang hasn't experienced as much wear.  Will measure the wear on the rear gang sometime today.

Have other Turbomax owners experienced this much wear?  Is there a better alternative of coulter to use instead of the originals?

thanks for your replies, gordon

"What size is the machine? What type of soil do you have? What angle are you running?"

Very good questions.  I should have given that information in my post.

It's a 30 foot Turbomax.  Most of our soils are a clay loam.  We ran the Turbomax primarily with the maximum angle.

gordon