Smooth Disc Blade for Landoll 7000 Series Vertical Tillage and Sunflower Disc Harrows

Description

When your disc blades start looking more like dull coins than cutting tools, you need replacements that’ll actually bite into the soil instead of just riding over the surface. This 24-inch smooth blade brings back that clean cutting action your harrow needs to properly break up ground and leave a seedbed ready for planting. The smooth edge cuts through crop residue without the aggressive action that can pulverize soil structure, making this blade perfect for those finishing passes where you want even tillage depth.

What You’re Getting

• Boron 15B26 steel construction with 46-52 Rockwell hardness that holds an edge through acres of tough tillage but won’t shatter when you hit that hidden rock
• 1-3/4 inch round axle mounting for secure fit without wobbling or premature wear
• Shallow concavity that sizes residue without over-working the soil profile – perfect for vertical tillage applications
• Single punch hole design reduces stress points that can cause cracking
• Rollable design means when these do eventually dull, you can actually sharpen them instead of just throwing them away

Built for Real Farm Work

This blade fits Landoll 6000 and 7000 Series disc harrows along with Sunflower 1200, 1400, 1500, and 6631 Series units. These are the workhorses you see breaking up corn ground in the fall and prepping bean stubble for next year’s crop. High-speed discs are the go-to tool when you need to cover lots of ground quickly while maintaining soil structure. Whether you’re working corn stubble in the fall, sizing cover crops before planting, or doing light tillage on summer fallow, these blades handle the unique stresses of operating at speeds where conventional disc harrows would bounce and chatter.

Made to Last

Osmundson doesn’t mess around with blade materials – this Boron steel maintains the perfect hardness range for long service life without fancy coatings, just quality steel that works. The 6.5mm thickness gives you the beef needed for season after season of reliable cutting, while the shallow concavity design reduces soil compaction compared to deeper concavity blades.

Installation Notes

This is a direct replacement that threads right onto your existing axle. Never mix worn and new blades on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips in your field. While you’ve got the gangs apart, check your spool spacing and bearing condition to make sure everything’s running smooth and true.