Eurospand Jolly Twin Spinner Spreader
MADE IN ITALY, PROFESSIONAL DOUBLE DISC FERTILIZER SPREADER. The Eurospand Jolly range of fertilizer spreaders are made in Italy for the professional farmer. The jolly range is a Professional double disc fertilizer spreader. Fertilizing with gain! technology, designed with a wide choice of loading capacities and spreading widths.
VIBRO SYSTEM – DOUBLE DISC FERTILIZER SPREADERS
In the market so far, the feeding of the most common fertilizer spreaders (fertilizer and seed distributors) is carried out by fall of the product, thanks to the hopper inclined walls, and using mechanical devices turning inside the hopper, dipped into the product. These latter devices are commonly known as “agitators”, and allow for a continuous flow of the product towards the feed system.
During their function, these metal agitators collide against the fertilizer and cause friction or abrasion among granules, with subsequent breaks of the product and alteration of its nutritional characteristics; as a matter of fact, a broken or pulverized fertilizer immediately releases its properties to the ground instead of diluting them in a longer length of time, with the risk of instant over-fertilization and possible pollution of water strata.
Another inconvenience caused by agitators is the production of heat during use. This heat is transmitted to the fertilizer and, together with the grinding and pulverizing phenomena, it causes the formation of lumps that can partly or totally obstruct the orifices of the spreading system.
Furthermore should a spreader be used to distribute seeds, the agitator rotation can damage the seeds. The damaged seeds will obviously never sprout.
Years of research and development in lab and in field, led our company to the creation of the “VIBRO SYSTEM”, an innovative stainless-steel system made of a vibrant disc mounted at the hopper bottom and above the feed system. When engaging the PTO shaft, the hopper bottom starts to vibrate, and keep on doing so for the entire distribution lapse of time.
A stainless-steel sieving grid is solidly applied above the vibrating bottom. It has three main functions:
– retaining the fertilizer lumps that if were reaching the orifices of the quantity calibration system could block the constant and regular functioning of the feed and distribution system;
– guaranteeing the fertilizer flow towards the vibrating bottom also in presence of consistent quantities of lumpy product (thanks to the vibration);
– decreasing and maintaining constant the fertilizer pressure on the feed system in order to distribute a constant and continuous dose of fertilizer with any volume of product inside the hopper.
With the “VIBRO SYSTEM”, it is now possible to distribute products like powdered lime, sulphates, pellets or organic amenders that cannot normally be spread with traditional systems; it is furthermore advisable to use the VIBRO SYSTEM for the broadcast sowing of various seeds and wet rice; granules reach the distribution system without losing their potentiality to sprout, which can be compromised by frictions due to scrubbing or incisions normally caused by the rotation of agitators inside the product.
Thanks to the vibration system it is possible to feed one single disc also for a long time (an indispensable condition to treat the field borders), without incurring into the usual grinding, heating and bridging problems in correspondence of the closed shutters. Problems that are responsible for partial or total blockage of the fertilizer flow.
Vibro video
TPS TRANSMISSION PROTECTION SYSTEM
Our double disc fertilizer spreaders are provided with an innovative oscillating unit of transmission, mounted on flexible rubber mountings. Thanks to this revolutionary system, now the operator can easily check the correct length of the PTO shaft before the ignition of the machine thus avoiding any damage to the transmission shafts or, in some cases, to the lower part of the frame. In case the PTO shaft does not have the correct length, the anomalous bending usually borne by the input shaft is absorbed exclusively to the rubber mountings that under this strain deform up to the point they may brake in case of very high stress, but at the same time preserving the integrity of the transmission unit.
The right length of the PTO shaft and so the exact work angle of the driving gearbox is easily given by the alignment of two reference pointers located on the frame and on the transmission unit.
Therefore the TPS allows safe work in every working condition.
FRAMES
Useful Loads up to 3600 kg.
Structural sturdiness and hooking versatility with three different positions.
DISTRIBUTION
Moulded vanes with patented edges and a stainless-steel barrier positioned above the spreading discs: two of our winning choices ever for an optimal lateral distribution.
LATERAL FEEDING
In comparison with the traditional systems where the fertilizer falls from the above feeding chamber on the disc, Eurospand double disc spreaders use a lateral feeding for vanes.
This solution guarantees an optimal transversal distribution also on uneven grounds since the vanes receive the product always from the side (laterally) keeping the spreading angle constant also in the presence of oscillations or slopes.
Another advantage is the elimination of the granule brake phenomena typical of the systems where the vanes receive the product by fall from the above and by turning they brake it again and again.
DISTRIBUTION ADJUSTMENT
This technical solution enables the end-user to position optimally the outflow of the fertilizer to spread according to the increase of the delivered quantity. The larger the quantity of fertilizer on disc between the passage of one vane and the following one, the farther the automatic orientation of fertilizer outflow onto the disc. In other words, if the quantity increases the system turns the orifice towards the outside in a automatic and progressive way by means of tie rods directly connected to the opening levers.
It is also possible to intervene manually on the earlier or later outflow of the product on the disc in order to compensate a spreading too much localized along the sides or too much at the centre of the passage.
ELECTRONIC VERSION
In these versions of fertilizer spreader, the required dosage is automatically adjusted according to the forward speed (Forward Speed Calibration) by means of two linear actuators. The system enables the instantaneous variation of the applied dosage, the interruption of spreading on one side, the verification of the worked hectares directly and comfortably from the tractor’s seat.
Simple and easy to use multi-language monitor, with pre-installed dosage curves for several fertilizers and seeds. Possibility to create and save jobs, export the control reports connected to each single job and visualise them on a computer.
Highly reliable linear actuators, fast sliding stainless-steel stems (14mm/s), low consumption.
Two magnetic sensors detect the exact opening of each valve and directly control the linear actuators avoiding possible position errors. “W” version Electric and Weighing system for top performers.
A double frame integrates two load cells, 5000 kg each, that detect the real weight of the product in the hopper in a continuous way, reporting every fertiliser and every physical variation to a distribution curve in order to deliver the exact quantity per hectare required.
The Jolly/Zeus fertilizer spreader “W” version with double frame and two load cells positioned in the hitching lower area of the spreader detect precise values also in presence of inclined fields up to 12% in all directions.
ISOBUS VERSION
By connecting these types of fertilizer spreaders to a ISOBUS tractor / device, a simple and intuitive Universal Terminal for a management the functions of the fertilizer spreader is displayed.
From the work page it is possible to manage the data of the spreading, view statistics and operate with variable rate prescription maps with control of the distribution sections and the overlaps.
Eurospand fertilizer spreaders are ISOBUS certified and present on the AEF database.
