(120-250 HP)

With ORSO model, Maschio has introduced a new bearing type in its harrows range: spherical roller bearings, providing greater strength than simple ball or conical roller bearings, combining strength and reliability with an easy maintenance.
This is suitable for continuous or heavy jobs, typical of farm contractors and tilling on rough terrain, with rocks and stones.
The roller bearings enable maintenance to be handled easily and quickly, permitting simple and economical operations typical of ball bearings.

Click here to discover how ORSO helps organic farmers on weed management.

Version Blades
Power Needed (HP)
Total Width (FT)
3000 24 120-250 10 11 10
3500 28 130-250 11½ 11 11½
4000 32 140-250 13 11 13¼
4500 36 150-250 14¾ 11 15
  • 1000 rpm PTO gearbox
  • Standard pair of gears: 16-22
  • Rotor revolution: 350 rpm
  • Round blade-holders
  • Quick blade release with screwed flange
  • Heavy duty gear-tray with double reinforcement
  • Bolt-on steel deflectors (PLUS)
  • Universal three point hitch, cat. II^
  • Speed lift connections (combi)
  • PTO shaft with slip clutch (1" 3/8 Z6 tractor side yoke)
  • Heavy duty barrel type bearings
  • Rear roller pin adjustment
  • Rear PTO
  • Rear levelling bar with mechanical central adjuster installed on the roller
  • 2 blades per rotor
  • Long dampened side protections
  • Front hitch kit
  • Kit hydraulic seed drill hitch
  • Pair of track eradicators with pin adjustment and safety shear bolt
  • Pair of track eradicators with pin adjustment and safety spring
  • Additional tubes kit for cage roller Ø 18 in. - Mod. 3000
  • Additional tubes kit for cage roller Ø 18 in. - Mod. 3500
  • Additional tubes kit for cage roller Ø 18 in. - Mod. 4000
  • Additional tubes kit for cage roller Ø 18 in. - Mod. 4500
  • Pair of gears for 300 rpm (15-24)
  • Pair of gears for 395 rpm (15-24)
  • Heavy duty PTO: power>= 200HP
Reinforced trough Open Close

double skin trough

Reinforced trough

The gear casing is made of a 0.24 in. thick steel plate, in addition to that a 0.20 in. reinforcing plate is welded-on to give a box section and make the assembly very rigid and sturdy.



Super sealing Open Close

paraolio poliuretano

Super sealing

The special seals are made with rubber and cellular polyurethane in order to guarantee a perfect long lasting sealing.

Blades holder Open Close

Power harrow shaft Maschio

Blades holder

Rotor shafts are processed by turning from a single tempered special Chrome Molybdenum high tensile steel and shaft is 2 ¼ in.

Why power harrow? Open Close


Why power harrow?

Outstanding soil refinement and best levelling action.

Optimal soil mixing: smaller clods on surface and perfect soil refinement in the lower layers good seed‐soil contact. Good water infiltration and no superficial crust. Less pulverization involves better soil structure and organic matter content on surface.

Higher working speed and depth than rotary tiller (4 vs 2/3 mph – max. 10‐12 vs. 8‐10 in.).

No hardpan formation.

Weed management solution for organic cropping systems (great weeder).

Ideal tool to mix chemicals on top layers.



Low vibrations Open Close

rotors power harrow

Low vibrations

Rotors phasing (15°) makes tillage operation smooth with no vibrations.

PLUS stone deflectors Open Close


PLUS stone deflectors

“PLUS” stone deflectors are bolted to the second gear-trough layer and prevent damages to the rotors. Deflectors can be easily removed by a single bolt to improve soil flow among rotors!


RAPIDO system Open Close

Rapido quick fit system

RAPIDO system

“RAPIDO” is a patented quick blades release system. A single central pin locks the tines in working position. With the special tool (standard on Rapido power harrows) is possible to spring-release the pin and remove manually the blades.


XL side containing protections Open Close

side protection

XL side containing protections

The extra-long side protections prevent ridges from the side of the power harrow among the passes. The protections have built in spring dampeners that absorb the collisions from large stones preventing damages.

Oversized long-lasting bearings Open Close

Bearing barrel bearing cuscinetti orientabili a rulli

Oversized long-lasting bearings

Ball or barrel bearings instead of tapered ones: easy replacement with no need of pre-loading.


Gearbox Open Close

gearbox cambio velocit


Large diameter bevel gears and curve tooth profile for larger contact surface and smoother transmission.

MULTI-SPEED gearbox allow to switch from 540 to 1000 rpm (rigid frame machines), and change rotor speed revolution!



Document Weight Type
10 MB pdf
10 MB pdf

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