Pulse width modulation sprayers: what we have learnt, correct operation and looking ahead

Published: 2 Mar 2023

Pulse width modulation sprayers: what we have learnt, correct operation and looking ahead

  • PWM sprayers are continuing to improve with new technology providing more consistent performance, individual section control and turn compensation
  • Constant pressure maintains droplet size and spray quality over a range of speeds
  • Low duty cycle operation can result in poor coverage especially with 10Hz systems
  • Newer systems have high cycle frequency (15/30/100Hz) and combine other standalone spraying systems
  • There are many misconceptions about the effective working speed range, correct nozzle size and determining the correct pre-set pressure
  • When set up and operated correctly, PWM sprayers perform accurately.

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Region: National

GRDC Project Code: BCC1910-001SAX,