From 25+ years in machine control technology to precision grading equipment trusted worldwide.
Born from Machine Control. Built for the Jobsite.
Grade-Blade is designed and manufactured by Spektra Nolo srl, an Italian grading blade manufacturer with roots going back to 1997, when our founder established Spektra srl as an official Trimble distributor. That early, direct involvement in the positioning and machine control industry gave us a rare vantage point: we didn’t come to grading technology as equipment manufacturers looking to add electronics — we came from the electronics and positioning world, with a deep understanding of how 2D and 3D control systems actually work on a jobsite.
Grade-Blade’s SK150 and SK200 grading blades were developed by combining Italian mechanical engineering with more than two decades of hands-on knowledge of machine control technology, so the blade wasn’t designed around one brand of instrumentation — it was designed to work with all of them.
Universal Compatibility with 2D and 3D Systems
Because of this background, Grade-Blade attachments are built to integrate seamlessly with 2D and 3D control systems from every major provider — Trimble, Leica, Topcon, and other leading manufacturers — giving contractors the freedom to use the equipment and technology they already trust, without being locked into a single ecosystem. The same openness applies to the machines themselves: Grade-Blade is compatible with skid steer loaders from every major brand, including Bobcat, Caterpillar, Case, JCB, John Deere, Kubota, Takeuchi, and Wacker Neuson.
Why Choose a Precision Grading Attachment from Grade-Blade
Precision grading used to mean choosing between speed and accuracy — a mini grader was accurate but slow, a box blade was fast but imprecise. Grade-Blade removes that trade-off: up to 5,000 m² of grading per day, with millimetric precision and minimal material waste, using just one skid steer and one operator.
Manufactured to Italian Engineering Standards
Every Grade-Blade attachment is built with Hardox steel for maximum abrasion resistance and structural durability. It’s not assembled from third-party components — it’s designed, engineered, and manufactured under our direct control, which is how we guarantee consistency across every unit that leaves our facility.
A Technology Partner, Not Just a Supplier
Almost three decades in the positioning and construction technology industry taught us that contractors don’t just need equipment — they need a manufacturer who understands the pressure of tight deadlines and tighter margins, and who speaks the same technical language as the systems they already use. Our team works directly with dealers and contractors worldwide to configure the right blade and control system for each jobsite, and stands behind every unit with responsive technical support.