Wilger’s Craig Bartel began his presentation with a warning: “Whether you choose to spray conventionally or purchase every piece of technology on the market, your application is only as good as … the spray tip.”Īccording to Bartel, there are several factors to consider when choosing a tip, and he presented several of the “basics of tip selection” with attendees. “You’ll see each nozzle is running at a different duty cycle and each nozzle is able to individually adjust to the turn.”Ĭapstan also has the ability to set up four “soft boom” presets, on the go, in the event of an over- or under-application scenario, such as what can typically occur with nozzles directly behind the sprayer’s wheel tracks or with fence row nozzles. ![]() ![]() “If you watch a 120-foot spray boom, or even shorter ones, and you’ll notice compensation as the operator goes around a corner or around the border of a field,” he said. Turn compensation was the next piece of the puzzle within PWM application, according to Hooper. “We intentionally make this so that it works in conjunction with the rate controllers with this system we are reducing the over-application of chemical.” “With individual nozzle swath control each tip turns on and off individually, based on the GPS coverage map that we make internal to our controller,” he continued. “Individual nozzle swath control capabilities were the next step that’s what a lot of applicators have wanted for a long time. “Individual nozzle control, the ability to turn each individual tip on and off as needed to eliminate over application, was the first step,” said Hooper. The company currently offers solutions that allow for individual nozzle swath control, turn compensation and programmable “soft” boom sections, and features nozzle valve diagnostic tools such as a key-fob control for nozzle calibration and tip status checks. Gordon Hooper, field engineer at Capstan Ag Systems, discussed Capstan’s evolving individual nozzle control capabilities during the Webinar. Secondly, we’re able to provide selective drift control.” “So you’re holding a constant pressure as you speed up and slow down across the varying terrain of the field, all while knowing you are getting good, consistent coverage. “With the pulse width modulation technology we have individual control of application rate and pressure,” said Burns. Technology Case IH Application Equipment Marketing Manager Mark Burns described the evolution of spraying from simply managing application with speed and pressure, to using rate controllers, to today’s PWM systems, which “address the constraints found in conventional application practices.”Īccording to Burns, the PWM system works via a solenoid valve in each nozzle body that opens and closes at a variable rate (pulses) depending on a variety of factors such as variable field speeds and differing product rates. That was the topic of CropLife Media Group’s recent Webinar, “Precision Spray Technology: How Pulse Width Modulation Spray Systems Improve Accuracy and Quality of Chemical Application.” The hour-long presentation was highlighted by insight from experts at Capstan Ag Systems, Case IH and Wilger Inc., on how Pulse Width Modulation (PWM) spray systems can improve an applicator’s bottom line by addressing the overall quality of application and drift management issues. Certain field conditions can lead to over-application, causing potential crop damage as well as wasting product. ![]() Visual Flow Indicator Sizing & Ball Selectionįind the below webinar, in partnership with CropLife and industry experts from Case IH (Mark Burns), Capstan Ag Systems (Gordon Hooper), as well as Wilger (Craig Bartel), reviewing what pulse width modulation (PWM) spray systems do to improve accuracy and quality of chemical application.įind the below exerpt from CropLife about the following webinar, moderated by CropLife and joined by industry experts from Case IH (Mark Burns), Capstan Ag (Gordon Hooper) as well as Wilger (Craig Bartel).Īchieving consistent coverage across a field can be challenging with conventional spray technology.
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