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Meadow Injectors
The Multi-Action has a low weight, many available working widths and an attractive price. It is made of a galvanised single-beam frame with free steering elements. Each element is fully galvanised and made up of two arms with independent deflection and a self-sharpening skid followed by an injection cone. It requires little maintenance and combines modularity and easy design. Fitted with skids with a 21.5-cm spacing, it can be equipped as an option with small discs (Ø 250 mm x 3 mm) to cut the ground for a better penetration of the slurry. Usually, slurry is injected at a depth from 0 to max. 3 cm (depending on the humidity of the surface and the circumstances at that time). For a more precise spreading, this injector can be equipped with a section control that, thanks to an ISOBUS control and a GPS system, locates the areas that have already been fertilised and automatically closes the appropriate injection hoses.
The Multi-Action is made up of a galvanised single-beam frame on which free steering elements are fastened with a 21.5 cm space between them. Each element is fully galvanised and made up of two arms with independent deflection and a self-sharpening skid followed by an injection cone. The skid makes a groove in the ground (between 0 and 3 cm deep), while the injection cone smoothly and homogeneously lays the slurry in the middle of this groove without splashing the plants. The return springs, combined to the springs serving as mechanical shock absorbers, only start working from a given operating height and allow to apply the skids on the ground with a given pressure. This ensures ground clearance for the frame and a flexibility in the deflection of the elements. The long arms on which the skids are fastened ensure a great deflection up to 25 cm to compensate the ground unevenness, allow to avoid all vibrations on the elements, even at a speed higher than 10 km/h, and ensure a regular spreading without splashing. Regarding the compactness for journeys on public roads, the models that are more than 3 m wide are fitted with a double acting (DA) hydraulic folding system in order to comply with the required transport width. Once the injector is folded, the elements on the upper arms are kept in position by a locking system. A simple notch prevents each element from making a rotation round its axis and from falling down. The elements remain thus very rigid in relation to the vibrations due to transport. The folding system is also fitted with the Lock-Matic© automatic locking in order to enhance the driving safety as much as possible, namely on the road. This locking device is operated by the same hydraulic function as the folding system, thanks to the steered valves.
The self-sharpening share makes a groove in the ground (between 0 and 3 cm deep, depending on the humidity and conditions on the terrain), while the injection cone smoothly and homogeneously lays the slurry in the middle of this groove without splashing the plants. The skid is fastened on a long arm to ensure a great deflection up to 25 cm to compensate the ground unevenness, but also to avoid all vibrations on the elements, even at a speed higher than 10 km/h. Finally, it ensures a regular spreading without splashing. Thanks to return springs acting as mechanical shock absorbers, a certain pressure is exerted on the skid to keep it on the ground.
The Multi-Action injectors are standard fitted with mechanical anti-drip pincers preventing any loss of slurry on headlands and ensuring a careful and even slurry injection at the beginning and at the end of a working line. These pincers are mechanically opened and closed by the lifting system. They automatically open the injection hose as soon as the injection element hits the ground (and inversely when the element leaves it). Each pincer is fitted with a rounded jaw and a pinching stop in order to limit the wear to the rubber injection cone as much as possible. They can be replaced by hydraulic pincers (option) that lock the injection hose by means of a return spring and free it through the hydraulic ram effect.
The injection elements are made up of 2 outlets and are fixed to the frame by means of an axis. They can pivot by 30° in bends (15° to the left and 15° to the right) without lifting the machine nor damaging the meadow or the machine. These free steering elements are fully galvanised for a long lifespan.
As slurry (especially cattle slurry) contains fibres and foreign substances, it is essential to have an efficient macerator for the injector to work properly. Yet, a blocked opening means an uneven spreading pattern. The user therefore has to stop working and clean the machine, which is quite constraining! The JOSKIN solution is the patented system of macerator with cutting and self-sharpening discs: the JOSKIN SCALPER©. The cutting system of the SCALPER© is merciless: free rotating circular blades are fitted on a knife holder driven by a hydraulic motor. There is a scissor effect between the circular blades and the arched and off-centre elliptical openings of the counter blade (HARDOX), inevitably cutting all materials that can appear in the slurry. If the blades hit something hard, the rotation direction of the SCALPER© is reversed by the ‘‘Switch-Matic’’ system (option) until the obstacle is chopped. Furthermore, an electric reverser with manual control is installed in the cab for all rear implements with automaton. The JOSKIN macerator is assembled by fitting and clipping. A multi-position manual valve, fixed at the macerator inlet, provides a step by step adjustment of the injector feeding. The precise adjustment is carried out by means of the pressure relief valve and the chosen type of counter blade. The hydraulic circuit is isolated thanks to a cap. A drain cap can be used to detect a possible defect in the hydraulic seal.
