Straddle tractor
Equipped with powerful engines and advanced transmission systems, these tractors provide great stability and optimum traction on varied terrain. Their ability to carry equipment over several rows simultaneously increases efficiency and reduces working time.
Finally, automatic guidance and integrated tool management technologies improve the precision and productivity of vineyard operations.
Présentation
A row-entry tractor is a wheeled agricultural tractor classified in the T4 category (special-purpose tractor). The T4.1 sub-category covers row-entry tractors designed to work in tall, row-grown crops, particularly vineyards.
These tractors are characterised by a raised chassis, or part of the chassis, enabling them to straddle one or more crop rows. In the working position, the ground clearance measured perpendicular to the rows must be greater than 1,000 mm.
Where the ratio of the tractor's centre of gravity height to the average of the minimum track widths of all its axles exceeds 0.90, the maximum design speed is limited to 30 km/h.
The choice of a straddle tractor depends primarily on the work to be carried out and the characteristics of the plot: height and width of the vines, row spacing, required power, traction capacity, hydraulic equipment, power take-off, load-carrying capacity and the driver's working conditions.
The required specifications will therefore vary depending on whether the straddle tractor is intended primarily for soil preparation, spraying, vegetation maintenance, harvesting or the use of specialist equipment.
Requirements for agricultural tractors
- For traction work
- For transport and handling work
Straddle tractor
Tool carrier
The straddle tractor tractor is fitted with different tool carriers depending on its configuration (tillage, forwarder, etc.). There are generally tool carriers between the wheels as well as tool carriers positioned behind the rear wheels (track eradicator).- Push-fit, consisting of a pole to which the tools are attached by means of a cross clamp. Depending on the working width, the pole can be fitted with a sliding frame to adapt the working width to the rows of vines. A guide is positioned on the front of the pole, keeping the entire tool holder in line with the row and limiting lateral mechanical stress.
- When pulled, it consists of a deformable parallelogram with a square at the bottom. The advantage of this type of tool-holder is that it facilitates the work of mechanical weeding tools. On the other hand, it reduces the space available between the front and rear wheels.
Push-type tool holderManufacturers of straddle tractors are developing rapid hitching systems to limit mechanical stress and, consequently, the arduous task of hitching tools. This is the case of GRV, which offers a tool carrier mounted on pivot points.
