I have attached a pic of our Eagle tine used on the CurseBuster. The new tine is underneath the used tine so that you can see how they wear. The pattern is significantly different than the Smart-Till tine and we love the difference. Before long the wear surfaces of the Eagle tine will be replaced with 25% chrome alloy that can be replaced with another edge piece of chrome. When that happens we expect tine life to more than triple but the price to stay almost the same.
This link to the Smart-Till brochure shows you the difference in the tine shape and if you look carefully at one of the pics with the roller in the ground you will see that Smart-Till tine doesn’t hit the ground squarely on the cutting edge. Instead it hits on the heel of the cutting edge. When it wears it gets pretty dull usually.
You can see maybe that when the Eagle wears it still is hitting squarely on the entire length of the cutting edge.
we have a testimony from a New Yorker that was out in January penetrating 3 inches of frozen soil that had been too saturated to till in Nov and December. He said when he got into 4 inches the front rank wouldn’t quite go thru it all but the rear tines finished the penetration with no problem. The velocity of the tine entry point at the tip makes a huge difference when it come to penetrating tough soils. In fact if the conditions are borderline to penetrate, increasing speed makes the machine enter better. Higher velocity being applied to the right place works every time.
Of course the retaining system is totally different for the two tines. No bolts required in the CurseBuster Eagle tine system. And the roller doesn’t have to be disassembled or removed in order to replace the tines . Check out the owner’s manual on-line to see how that is done.
To digress slightly, we created the Eagle tine because the Smart-Till tine was too aggressive for what we wanted to see. The lean angle of the tine has been changed on the Eagle tine to make it much less disruptive at zero roller offset. When it is used in the Tandem frame design we never have to exceed 5 degrees of offset to get plenty of fracturing action even when tines that are ready for changing at 5 inches in length.
We strongly suggest pulling tines off the rear when they at 6 inches long and moving them, roller and all, to the front and wearing them on down to 4.5 to 5 inches in length. Makes the money for tines go a lot farther while maintaining max effectiveness. A tine that is less than 6 inches in length is likely not going to be deep enough to guarantee penetration of the silt barrier . If guys will use the penetrometer or dig to examine the roots then one can tell how long the tine needs to be.