In crop protection treatments, there is a risk of incorrect dosing caused by spray pressure deviation at changed speeds. These deviations occur at higher speeds due to increased drift, but also at reduced speeds, as is the case on slopes or in curves.
Pulse width modulation (PWM) ensures that electrically controlled single nozzle valves are clocked at a frequency of 25 Hz. This very fast opening and closing of the valves allows the flow rate to be controlled more precisely, varying spray liquid quantities are applied at the same pressure and droplet size with just one nozzle caliber. The result: less drift and uniform wetting.
The DAMMANN proSPRAY is easy to install thanks to its pre-fitting to DAMMANN systems and can be retrofitted to all DAMMANN equipment at any time. It also proves very easy to operate thanks to ISOBUS integration.
The JKI (Julius-Kühn-Institute) has received the complete system, consisting of DAMMANN crop protection equipment & PWM individual valves (Müller Elektronik) & SoftDrop nozzles (Agrotop), for testing. Recognition and drift classification are expected due to the very good results.