Stone crusher - forestry tiller 300-500* HP

  • The biggest stone crusher, soil tiller and forestry tiller in the world! Available also in the working width 350 cm [138”]!
  • Crushes stones up to 50 cm [20”] Ø, mulches wood up to 90 cm [20”] Ø, tills the soil as deep as 35 cm [14“]
  • NEW! ISOBUS terminal
  • NEW! 2SPEED POWERSHIFT gear with 2 speeds (Opt) for *300-390 HP
Steinbrecher und Bodenfräse
Steinbrecher und Bodenfräse
Stone crusher - forestry tiller 300-450 HP
Stone crusher - forestry tiller 300-450 HP
Steinbrecher und Bodenfräse
Steinbrecher und Bodenfräse
Steinbrecher und Bodenfräse
Stone crusher - forestry tiller 300-450 HP
Steinbrecher und Bodenfräse

All in one - MAXISOIL!

The SEPPI MAXISOIL is a multifunctional tiller-mulcher. It tills soil and roads, mills stumps and mulches wood. It is ideal for maintaining dirt roads, for land reclamation, for the preparation of ski slopes, to clean up slash after felling operations.

SEPPI MAXISOIL mulcher is suitable for tractors with a power class between 300 and 450 HP. The patented rotor V-LOCK has an optimised combination of new ULTRA MONO PROTECT + MONO & ULTRA MONO EXTREME fixed hammers with tungsten carbide inserts. The machine is fitted as standard with a transmission cooling system integrated with the remote temperature control device that eliminates the risk of overheating of the transmission if the work is interrupted. Double CARBONCHAIN gear belts provide high strength and length stability with high flexibility. The frame is fully protected with interchangeable Hardox® wear-proof plates. In standart version is ADAM - cardan alignment system to improve how the machine adapts to the soil. This  SEPPI ''angular compensation'' feature is used to protect the cardan shaft and the tractor PTO and MAXISOIL from unnecessary stress caused by differences in soil. Adjustable crushing bar and grill to obtain the desired degree of crushing and hydraulically adjustable hood are also the basic features.

The biggest forestry tiller and stone crusher SEPPI MAXISOIL 350 in the world: Following a request from our North American operators, we developed a mulcher-tiller-crusher with extreme dimensions. Following successful tests, SEPPI M. can present the MAXISOIL 350 tiller-crusher with unprecedented dimensions. Thanks to its sturdiness and advanced know-how, a powerful, safe and reliable machine with top operating efficiency levels has been created.

NEW by MAXISOIL! 2SPEED POWERSHIFT - 2-speed transmission already known from the past on the SUPERSOIL and STARSOIL models.  The parallel 2-speed gearbox (the so-called 2SPEED version). Thanks to the 2SPEED POWERSHIFT system, the rotor speed is controlled directly on the ISOBUS terminal.
The operator can change the setting during operation - fast gear for mulching on the surface - slow gear for working in the ground - the tractor PTO remains unchanged at 1000 rpm. Working at this PTO speed protects the driveline and at the same time ensures better work when mulching wood (in fast gear) and crushing stone and tilling soil (in slow gear).

NEW! SEPPI now applies an ISOBUS control system as standard on many of our machines! The ISOBUS socket of the mulcher is connected to the tractor allowing some functions to be monitored and controlled directly by the on-board computer in the tractor.

The powerful MAXISOIL is equipped with a water injection system to bind and stabilize the soil and cool the hammers. Hydraulic controlled roller (option): down as compacting roller / depth control, up usable as guard frame

Available working width: 250, 350 cm [ 98", 138"].

  • Crushing stones on roads, farms and other areas
  • Creation and maintaining gravel roads
  • Land clearing in the oil and gas industry
  • Brush on construction sites
  • Maintaining of power and communication lines
  • Improve arable fields and other land
  • Prepare soil for (re)planting
  • Vegetation management
  • Clearing forests after harvesting wood
  • Right-of-way clearing
  • Crushes stones up to 50 cm [20“] Ø
  • Mulches wood up to 50 cm [20“] Ø
  • Tills the soil as deep as 35 cm [14“] and deeper, depending on working conditions
  • Rotor V-LOCK with combination of fixed hammers ULTRA MONO PROTECT + lateral EXTREME
  • Anti wear hammer support​
  • Bolt-on-rotor shaft
  • Working speed 0-2 km/h
  • ISO 3-point rear linkage cat. 3 & 4 central fixed
  • Gearbox 1000 U/min with integrated cooling
  • Dual side CARBONCHAIN gear belt drive
  • Integrated torque limiter
  • ADAM alignment system 
  • ISOBUS system (temperature, cooling, hour counter) - requires a tractor with ISOBUS terminal (or see optional*)
  • Chassis made of high tensile and wear-resistant steel AR400 with internal replaceable WEAR PLATES
  • 2 rows of tempered counterknives
  • Anvil bar and crushing grid to crush stones
  • Hydraulically operated hood
  • Chain protection
  • Narrow in-depth skids
  • Colors: red RAL3020 & charcoal RAL7021
  • PTO drive shaft - series SK
  • Fixed hammer rotor ULTRA TIP V-LOCK
  • 2SPEED POWERSHIFT gear with 2 speeds abd integrated cooling system and incl. ISOBUS system
  • ISOBUS control for tractors with ISOBUS and terminal
  • ISOBUS terminal for ISOBUS-ready tractors
  • RETROFIT - ISOBUS compatible system for older tractors
  • Hydraulically operated compacting roller, also suitable for depth control

And other options of choice.


Via Trento, 111
T 0461 178 75 00
F 0471 962 547