Hydraulic mulching heads

Brush cutters for excavators weighing 1.5 to 4.5 metric tons are designed for landscaping maintenance and for clearing embankments, ditches, and hard-to-reach areas. Compact, sturdy, and versatile, they are ideal for cutting grass, brambles, bushes, and shrubs, with a cutting capacity of up to 4 cm in diameter, ensuring high performance, reliability, and maximum maneuverability even during the most demanding operations.

The tube, produced by extrusion, requires no welding and is
therefore seamless – a guarantee of strength and reliability.
This manufacturing process provides enhanced resistance
to accidental impacts.
Square recess tool holders – why is this better?
When it comes to shredding, each design detail makes a
difference. The tool holder is one such detail.
The choice between a hexagonal and a square recess affects
not only the shape, it directly affects the holding strength
and clamping of the component.
This design feature translates into increased reliability,
durability, and operational safety.
The square recess allows for a more precise and stable
mechanical connection between the tool (hammer or knife)
and the holder.
This means:
• No play between parts, ensuring longer life of the
holderbolt connection.
• Reduced risk of slippage or rotation of the bolt.
• Greater resistance to dynamic and torsional stresses.
Each Berti rotor is tested and balanced at high speeds to
ensure top-quality performance

The cast iron hydraulic gear motor is a design choice that
combines robustness, reliability and consistent performance
over time.
Cast iron, thanks to its high mechanical strength, ensures
greater durability even under the most demanding working
conditions, reducing wear on internal components. The rigid
structure of the motor housing allows it to withstand the
pressure peaks typical of applications on mulchers without
deformation, whilst its good heat dissipation capacity keeps
the oil temperature stable, improving the overall efficiency
of the hydraulic system.
Operation is also smooth and quiet, thanks to the precision of the gears, with the advantage of lower vibrations and
reduced maintenance over time. In summary, the cast iron
hydraulic motor offers reliability, continuous operation
and a long service life – essential characteristics for
those requiring professional performance and safety in all
operating conditions.

The internal structure of Berti’s hydraulic mulching heads
for excavators is made from Strenx® and/or Hardox® steel,
high-strength materials with a low density that ensure an
excellent balance between strength, flexibility and structural
precision.
Each housing is designed to ensure long-term durability.
The use of Strenx® and/or Hardox® results in a lighter
structure that is nonetheless resistant to torsional stresses,
improving the machine’s manoeuvrability and reducing
overall wear. The attention to detail in construction and the
experience Berti has gained over decades of design make
the bodies of its excavator mulching heads a benchmark for
quality, reliability and robustness – essential characteristics
for those who work daily in difficult conditions and require
consistent performance over time.

The Berti Fluid Box system is designed to optimise the
performance of the brush cutter by constantly monitoring
the main operating parameters. Thanks to its integrated
functions:
• It regulates the oil flow rate, setting the maximum quantity
directed to the motor and preventing overloads and rotor
overspeed.
• It limits the maximum operating pressure, protecting the
motor from pressure spikes caused by sudden loads.
• It facilitates the stopping of the rotor when the machine is
switched off, improving operational safety.
• It prevents cavitation in the hydraulic system, maintaining
the system’s efficiency over time.
Berti Fluid Box: simple, intelligent and reliable technology
that ensures consistent performance and a long service life
for your mulching heads for escavator.