Lemken presented its highly variable Vari-Extend spraying boom for the first time at Agritechnica 2009. The desired operating width can be precisely adjusted symmetrically or asymmetrically via three telescopic boom sections that slide in or out powered by an electric or hydraulic motor.
The boom, which was awarded a silver medal for innovation at the event, is perfectly suited for use in mixed cropping systems where tramline width may vary, and it offers numerous benefits for the application of agricultural pesticides and liquid fertiliser.
An important benefit of the Vari-Extend boom is that the functionality of the break-back is maintained regardless of operating width. Conventional folding sprayer sections cannot offer this when working at reduced width. Furthermore, field obstacles do not pose a problem for the innovative spraying boom by Lemken, as they can be avoided without leaving the track thanks to the sliding function. Vari-Extend also requires less space for folding in transport or operating mode than conventional boom types.
Vari-Extend offers individual nozzle control. As the boom width is reduced, nozzles are switched off, one by one, maintaining application rate. Additionally, connection to GPS, allows the spray boom to precisely start and stop nozzle flow according to need. This can avoid double dosing when working alongside headlands.
The new infinitely adjustable Lemken VariExtend boom thus combines safety, flexibility and manageability, with an efficient, pin-point accurate spraying performance. The system is expected to available next year.
For more information visit: www.lemken.co.uk.
