Rotary tiller Inversa IG

IG stone burier, specifically designed to bury rocks, clods, and residues in the most efficient way. It allows to bring back to the surface the lightest part of the soil allowing for an easier sowing. Unique with its central gear box of solid gears. Made with high tensile steel, it is available in 2.5 and 3 meter working width. Maximum hp allowed: 170 hp


Central and lateral mechanic sealing

The whole range of Alpego Rotary Cultivators features the patented “CENTRAL DRIVE GEAR BOX” made of solid GEARS (no belts, no chains!)

The innovation and uniqueness of the Alpego Rotary Cultivator concept consists on the central transmission that drives the spinning torque from the PTO to the two half rotors through solid gears. This guarantees maximum reliability and less torque dispersion.
Another advantage is the absence of the lateral transmission and therefore a reduction of the overall width.

Vertically arranged gears

The transmission gearbox is made  according to internal Alpego specifications.

It consists of a speed gear change, which makes it possible to change the rotation speed and of a series of gears transmitting the motion to the rotor.

The vertically arranged gears made of cast iron work constantly in contact with the moving soil, which allows a natural heat dispersion.

Moreover, the working of the gears, always immersed in an oil bath, guarantees their optimum lubrication and cooling.

Central and lateral mechanic sealing

Central and lateral mechanical seals in oil bath allowing for maximum reliability in extreme conditions also in water immersion.

High tensile steel frame

High tensile steel frame

Rotor with 6 helicoidally positioned blades


  • 1000 RPM gearbox Z=21/33 > 237
  • Drive shaft with slip clutch or automatic cam clutch (must be chosen)
  • 3-point hitch cat. 2
  • Central track eraser
  • Rear-roller connecting plates with a system for quick-adjustment of the working depth

Technical data

Mod. HP mm. mm. mm. (n°) (n°) Kg
Inversa IG-250 E 75-170 2440 2550 540 240 10 30+30 46 1424
Inversa IG-300 E 85-170 2910 3020 540 240 12 36+36 56 1634

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Hydraulic linkage for seed-drill

Cage Roller

The CAGE roller is suitable for dry soils of medium density.

With the extra kits (available only for the G5 series) it is possible to add some pipes to the cage, thereby increasing the supporting surface.

The structure of the cage does not make it suitable to support very heavy loads, such as the combined implements.

Spiral roller

The SPIRAL roller creates a soft and uniform seeding surface and is suitable for medium and light soils.

It can’t be used in the combinations with the seed drill

Spike Roller

The SPIKE roller is very versatile, it works well even when the soil is damp and compacted.

It can be used in the combinations with the seed drill

Packer Roller

The PACKER roller has a tubular structure with a large diameter: this makes it very sturdy and particularly suited for the combinations with seed drills.

Several rows of tines guarantee the traction on the ground and a series of adjustable brushes keeps each of them clean.

The result is a compact surface, perfect for sowing.