The unique property of the Lely Centerliner is that each of the 2 spinner discs – with 4 spoons each – covers the whole spreading width. The spreading patterns overlap each other as a result.
On most twin-disc spreaders, the spinner discs rotate from centre to outside (seen from the rear). Each disc produces a half spreading pattern. These two patterns are then laid against each other in the middle behind the tractor. Only a very accurate dose rate setting, that has to be repeated when switching to another type of fertiliser, can prevent stripes behind the middle of the tractor due to a wrong overlap. The Centerliner does not have this problem, because the 2 spreading patterns overlap each other completely over the entire spreading width. This is in fact a full, double overlap!
With most twin-disc spreaders the spreading pattern slopes steeply towards the sides. The adjoining working bout has to link up with previous bout, which means that even minor driving faults will easily lead to stripes in the crops. The Centerliner spreads up to the previous tramline, which means this problem doesn’t apply. That’s why a driving error of 1 meter or more is a lot less critical and doesn’t disturb the combined spreading pattern. So not only does the Centerliner provide a double overlap per working pass, but it does the same with each consecutive bout. Therefore we can easily state that the TULIP Centerliner provides 2x a double overlap.
Spoons and bowls:
The special shape of the spoons is the result of many tests. The suction power of the spoons together with the forced dose result in a constant and even supply of fertiliser. The spoons of the left spinner disc are positioned at a 45° angle compared to the spoons of the right disc. This results in no collisions between fertiliser coming from different discs. The result is an even and synchronised dose. The bowls are very close to the spinner discs for an accurate spreading pattern even on slopes. The drop point is in the centre so the fertiliser gently accelerates along the vanes instead of getting smashed by it.
The dose rate may vary under the influence of pellet size and humidity. To ensure an accurate dose rate, the calibration bowl can be used to quickly check flow rates prior to spreading.
Quadruple spreading pattern:
The quadruple spreading pattern leads to a very low variation coefficient. In practice stripes are detected very rarely. Every square meter in the field receives 16 small doses of fertiliser. As a result the machine is very forgiving for user errors. This makes setting up the machine easier for you.
- Hydraulic control of the application rate
- Stainless steel spoons and spinner discs, powder coated spreader bowls
- 2 Screen punch holes sieves Ø 20 mm
- Material grading kit for use in combination with the output chart
- Walterscheid PTO shaft (1 3/8” – 6 splines tractor side)
- Two spinner discs which rotate to the inside: each spinner disc throws a complete spreading pattern. Exact
distribution through quadruple overlapping.
- Spreading width from 10 up to 18 m, easily changeable by adapting the PTO shaft speed.
- Rotating spinner disc: no blockage of the valve opening, no grinding of the fertiliser.
- Due to the small hopper size the spreader can easily be positioned underneath a silo.
Further explanation accessories
- Centraside: headland spreading kit to obtain a sharply limited spreading pattern at the right side of the
spreader. At the left side of the spreader the spreading pattern stays the same.
- Disc valve: device for closing the left spreader bowl when using a Centraside headland spreading set.
- Hydraulic tilt ram: when headland spreading is required the Centerliner spreader can be tilted. This reduces the spreading pattern on one border side, one pass creates the headland spreading.
- Carrier: with this solid under-carriage under a Centerliner fertiliser spreader a pulled combination is obtained. By dividing the total weight over the tractor and carrier, the bottom pressure is reduced. This has the advantage that also with a smaller tractor a bigger amount of fertiliser can be carried.
- Telespace PTO shaft: special telescoping PTO shaft which can be extended by 30 cm before attaching to the
tractor. This gives a free access, so other connections can be made.
Points of interest
- The maximum spreading width depends on various factors.
- For variable rate control on the basis of a yield map, please contact us to check the compatibility with your
brand of GPS monitor.