Built By Farmers, For Farmers
Razors Edge Concaves come from Thunderstruck Ag — a team obsessed with helping farmers get more from every acre. We build the concave we wanted in our own machines.
Our Story
Thunderstruck Ag was founded to bring farmer-designed solutions to the harvest. After years of fighting concaves that plugged, overloaded one side of the shoe, and forced constant cover-plate changes, we set out to engineer something better — a concave that threshes grain-on-grain, opens progressively, and runs clean across crops and conditions.
The result is Razors Edge: a variable-spacing, laser-clad notched-bar concave system that reduces grain loss, protects sample quality, and lets operators run faster with less fuss. It's tested with drop pans in real fields, not just on a spec sheet.
What We Stand For
- Performance you can measure — we prove results with drop-pan data, not marketing claims.
- Simplicity in the cab — one setup that handles your rotation without swapping concaves or stacking cover plates.
- Support that shows up — manuals, settings cards, a dialling-in playbook, and specialists on the phone during harvest.
How We Help
From Order To Harvest
Find Your Fit
Tell us your combine and crops; we confirm the right Razors Edge set.
Install & Dial In
Model-specific manuals, settings cards, and the playbook get you running fast.
Harvest Better
Cleaner samples, less loss, more acres per day — backed by our team all season.
Get More From Every Pass
See what Razors Edge can do for your combine.
Chat With Us
Questions about fitment, settings, or an order? Our team is here to help during business hours.
Call (855) 910-2515 Send a Message