Details
Models Available John Deere - 9660STS, 9670STS, 9760STS, 9770STS, 9860STS, 9870STS, S660, S670, S680, S690, S760, S770, S780, S790
 
CONCAVE BENEFITS 
30% more thrashing surface area than a factory concave 10%+ less cracked and damaged grain Increased harvest speeds by 5-10% Can be used in all crops Increased thrashing surface area without sacrificing grain and increasing the ease of flow by 20 degrees Works with stripper headers 
*For smaller or hard to thrash grains, we offer a specially designed cover plate that creates a forced cushion thrash.