
The Valentini MD‑MAXI DIABLO is one of the most powerful, robust, and efficient machines ever developed for large‑scale soil preparation. Designed for professional farmers and contractors working daily in demanding terrain, this series combines high‑precision Italian engineering with a reinforced structure capable of withstanding extreme conditions without compromising performance.
The MD‑MAXI DIABLO is built to transform hectares of hard, compacted, or stony soil into a perfect, homogeneous, and highly productive seedbed. With working widths ranging from 4 to 6 meters, it covers large areas quickly, drastically reducing the number of passes and increasing daily productivity. The high‑speed rotor, equipped with HEAVY DUTY cemented gears and an oil‑bath transmission, ensures aggressive yet controlled work, breaking clods, incorporating organic matter, and leaving the soil loose and level.
Its heavy and well‑balanced structure guarantees stability even on uneven terrain. The reinforced chassis is designed to withstand intense vibrations and constant impacts, keeping the machine stable and efficient throughout the workday. The rear roller ensures a uniform finish, essential for even germination and healthy crop development.
Durability is one of the pillars of this series. The circular HEAVY DUTY blade‑holder shafts, cemented gears, and reinforced transmission are engineered to resist extreme wear. In stony soils, the manufacturer recommends the stone‑protection kit, which increases safety and extends the machine’s lifespan. Maintenance is simple and accessible, with robust and easily replaceable components, ensuring full operation throughout the agricultural season.
The MD‑MAXI DIABLO adapts to multiple applications: intensive farming, pasture renovation, horticulture, extensive crops, land recovery, and large‑scale operations. Its ability to work up to 30 cm deep allows soil preparation in a single pass, reducing operating costs, fuel consumption, and tractor wear.
Valentini, globally recognized for the quality of its machines, developed the MD‑MAXI DIABLO to be a benchmark in the market. The combination of advanced engineering, high‑resistance materials, and superior transmission technology makes this series one of the most sought‑after by professionals who value performance, durability, and efficiency.

Recommended power: 170–250 HP / 125–221 kW
Working width: 4604 mm
Overall length: 4651 mm
Number of tools: 40
Working depth: 30 cm
Rotor speed: 361 rpm
Weight with cage roller Ø500: 2800 kg
Recommended power: 200–300 HP / 147–221 kW
Working width: 5044 mm
Overall length: 5091 mm
Number of tools: 44
Working depth: 30 cm
Rotor speed: 361 rpm
Weight with cage roller Ø500: 3100 kg
Recommended power: 230–300 HP / 169–221 kW
Working width: 5924 mm
Overall length: 5971 mm
Number of tools: 52
Working depth: 30 cm
Rotor speed: 361 rpm
Weight with cage roller Ø500: 3300 kg
Note for stony ground: the stone‑protection kit is recommended for increased safety and durability.