Since its inception, the Merlo Group has based its production strategy on vertical integration, as an alternative to assembling components manufactured externally. In simple terms, this means that the company aims to produce most of the components needed to build its machines in-house, purchasing externally only the parts that would be too complex to produce internally. Examples of such parts are engines, tires, or, until recently, the trimming arms for the “Mm-Mc” series of municipal tractors branded Tre Emme.
Extended reach up to eight and a half meters
However, since last September, even these attachments are officially “made in Merlo,” thanks to the development of new arms made in two sections, with an extension on the second arm that allows the end tool to reach a distance of eight and a half meters. The supporting structure is made of high-strength “S700” steel, and all internal sliders are adjustable to compensate for wear. Bronze coupling bushings also minimize the friction between the pins and bushings, especially in cases of direct contact, which is further prevented by well-placed grease fittings. High-pressure hydraulic lines power the rotors, with quick-connect inserts allowing the operator to easily replace trimming units when switching from cutting heads to hedge or branch trimming tasks. The operational options for the cutting head are noteworthy.
Normally, it operates perpendicular to the direction of travel, and its angle can be adjusted via a hydraulic cylinder controlling the second arm. This ensures the tool remains parallel to the ground, aided by a floating feature in the structure, which facilitates work on banks and embankments. Additionally, a slewing ring above the cutting unit allows a rotation of over 180 degrees, enabling reverse mowing operations. For more demanding users who need to work at different angles or combine the arm with hedge cutters or branch trimmers, a “3D head” option is available.
A state-of-the-art product
This option adds an additional hydraulic cylinder, providing extra freedom of movement for the cutting head, which can now operate in front of the tractor’s front wheels or at angles other than the standard 90 degrees. This configuration also enables the use of tools for branch cutting and hedge pruning. It’s truly a cutting-edge product that fits well with the technical features of the “Mm-Mc” series municipal tractors. These two machines are powered by Deutz “Tcd 3.6” and “Tcd 4.1” four-cylinder engines, delivering 136 and 156 horsepower, respectively. Both engines are paired with continuous “CvTronic” transmissions, allowing the operator to control speeds from standstill to 40 km/h without having to use any controls other than the proportional joystick, which manages all major machine functions.
The tractors also feature suspended cabs, inspired by Merlo’s experience with its “Cs” series of telescopic handlers. This “Suspended Cab,” combined with a powerful air conditioning system, ensures maximum operator comfort at all times. Additionally, there is a front three-point hitch with a mechanical power take-off, expanding the tractor’s versatility, complemented by a hydraulic system with a flow rate of 95 liters per minute to power three auxiliary outlets, one of which includes a flow regulator. Therefore, managing winter snowplows, snow blowers, or road cleaning rollers poses no problem.
Title: Complete verticalization with Merlo brushcutting arms
Translation with ChatGPT
