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BullMach Estia 140 - Tractor-mounted flail mower - Medium series

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ID: 110891

EAN: 8053435091947

MPN: Estia 140

BullMach Estia 140 -  Tractor-mounted flail mower - Medium series
Tractor power
From 50 to 80 HP
475 Kg
Cutting width
140 cm
Standard cutting tools
Hammer flails
Opening rear flap
Pantograph arm
As standard
Internal gearbox
Hammer flail weight
0.8 Kg
Cardan shaft
Double spiral rotor
Product Features
Estia 140
Tractor power:
From 50 to 80 HP
Manual shift:
Hydraulic shift:
Hydraulic shift:
Double spiral rotor:
3-point hitch category:
First and Second
Internal gearbox:
Cardan shaft rotation:
Manufacturing country:
Cutting data
Cutting width:
140 cm
No. of blades:
Standard cutting tools:
Hammer flails
Hammer flail weight:
0.8 Kg
Hammer flails:
Cutting width:
140 cm
Side drive belts:
Hydraulic Piston for moving:
Opening rear flap:
Pantograph arm:
As standard
Rear support roller:
Rear adjustable Hood:
Free gifts/extra features
Side skids:
Cardan included:
Cardan shaft:
Instructions manual:
Dimensions and logistics
Product dimensions in cm (L x W x H):
160x170x80 cm
Net weight:
475 Kg
On pallet
Original packaging/s dimensions in cm (L x W x H):
Gross weight (packaging included) :
505 Kg
Unloading with hydraulic tail lift:
Assembly time:
60 minutes
Prompt Delivery
6 items in stock
Free Shipping
Estimated delivery: 29/05/2024 - 31/05/2024
€ 3.174,99
VAT Included
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BullMach Estia 140 Tractor-Mounted Side Arm Flail Mower

The BullMach ESTIA 140 side arm flail mower is a highly-efficient cleaning tool for green maintenance, ditches and hedges.

This side arm flail mower provides a wide range of operation for users who desire high versatility level and customisation in their shredding work.

The ESTIA 140 model provides the highest level of ductility among the other flail mowers available on the market. Its fully hydraulic movement allows both horizontal and vertical movement. The machine's frame is medium-sized and elastic, making it ideal for shredding light prunings, grass and small shrubs.

Its functions include grass cutting, shredding of stalks and prunings, and hedge trimming. It is particularly suitable for working on ditches, riverbanks and sloping terrain.

ESTIA 140 side arm flail mower is equipped with a hydraulic lateral shift, which is controlled by two sturdy pistons mounted on the machine. This system allows easy adjustment of the 3-point hitch's side position, giving the operator greater versatility and ease of use.

Its flexibility, customisation and advanced features make it a reliable tool for a wide range of shredding jobs.

This flail mower is equipped with a CMR gearbox (Costruzioni Meccaniche Reggiane), an extremely important element designed to transfer power to the flail mower's rotating drum.

The CMR gearbox is made of high-quality materials, such as high-strength steel, in order to guarantee the durability and sturdiness required to withstand the load and stresses generated during shredder operation.


  • Real working width: 140 cm
  • Total width: 160 cm
  • Weight: 475 kg


  • 1° Category 3-point hitch
  • 3-belt drive transmission
  • Rotor with toothed hammers
  • PTO
  • CE compliant safety equipment
  • CMR gearbox

N.B. The G and H numbers in the image vary according to the size of the tractor's rear wheels

Hydraulic side and vertical shift

The side arm flail mower is equipped with an exceptional hydraulic side and vertical displacement system, which guarantees great versatility and precision while working. This system is controlled by two powerful pistons, which provide the necessary force to move the flail mower.

Thanks to the 4 hoses that are connected to the hydraulic couplings on the tractor, the operator can easily control the movement of the arm flail mower. This hydraulic connection system ensures perfect synchronisation between the chopper and the tractor, allowing smooth and precise operation.

The sturdiness of the displacement system is guaranteed by its structure, consisting of two articulated arms. These arms are designed to handle heavy loads and withstand the stresses incurred while using the flail mower. Furthermore, they are equipped with grease nipples that allow for proper lubrication, ensuring longer system life and reliability.

Thanks to this advanced displacement system, the flail mower can work extremely flexibly. It can reach a vertical inclination of up to 90° upwards, allowing it to tackle difficult soils and overcome obstacles. In addition, it can tilt downwards by up to -40°, allowing accurate shredding even in areas with a significant slope.

Focus on piston holder grease nipple.

Hydraulic piston block valve.

Cutting tools: hammer flails

No. of hammers fitted on standard equipment: 20

Focus on one of the the hammer flails (hammers) mounted on supports welded to the rotor with a 108 cm diameter.

Focus on the side support with hammer flails rotor inner fixing bearing.

Focus on the outer rotor anchor plate, with central opening provided with greaser.

Weight of the single hammer flail: 800 g

Hammer width: 90 mm

Bolt length: 87 mm

Hammer hole diameter: 16 mm

Figurative image of the double-spiral rotor.

Side belt transmission and geared reducer

The CMR gearbox (made in Italy) is an essential component that transmits power from the tractor engine to the cutting unit of the flail mower itself. It is responsible for adjusting the speed and torque that are transmitted to the cutting unit.

Gearbox in oil bath. The housing is made of cast iron, while the internal gears are made of hardened steel.

This machine is equipped with a freewheel device (or additional joint) built in the gearbox; this ensures a long service life of all the moving parts of the machine, preventing the kickback that would be caused by changing from 540 rpm to 0 rpm and allowing the rotor to turn freely until it stops.

Lateral 3-belt drive with tension adjustment system by means of a practical screw system.

Focus on the side belt protective cover, equipped with several ventilation openings (for regular cooling).

There are 4 slots which allow optimum operation of the belts in parallel.

Focus on the side grease nipple on the transmission side, located at the rear of the machine, which allows optimum greasing action.


The gearbox of this machine can contain no more than 1.2L of lubricating oil.

Please carefully read the instructions manual before starting the unit.

Standard 1 3/8” z6 PTO (suitable for all current and recently manufactured tractors): whether you own a particularly old tractor, make sure that it s equipped with the same PTO and with standard clockwise rotation (right-side).

Supporting attachments - Rear roller, 3-point hitch and side skids

Height-adjustable rear support roller supplied as standard.

Focus on the roller fixing bearing.

Focus on the roller support provided with holes for adjusting its height.

Side support skids on standard equipment, adjustable in two positions.

Sturdy set of front protection slaps made of shaped steel.

Support roller protection bar.

Focus on the 3-point hitch, with wheelbase measurement of 80 cm.

Focus on one of the 3-point hitch pins.

Focus on the cardan shaft support.

Roller scraper measuring 136 cm.

Focus on one of the two support feet adjustable to 3 different heights.

Opening housing

A distinctive feature of this flail mower is its rear opening.

This not only allows adjusting the rear discharge space area by means of simple screws, but also facilitates maintenance.

Focus on the handles for lifting the housing.

Free items & Standard equipment

Free items included

The flail mower is shipped in its original packaging which includes the cardan shaft.

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