PowrSpray is the name of a new pump system for high-spec John Deere R900i Series trailed sprayers, which are now available in three tank sizes – 4400, 5200 and 6200-litres. PowrSpray features two hydraulically-driven centrifugal pumps. The first fills the sprayer at up to 1200 litres/min, while the second, a 1000 litre/min spraying pump, has Direct Rate Control (DRC) for fast changes of application rate and increased spraying accuracy. The self-priming, low pressure filling pump fills the sprayer rapidly even with the tractor engine at idle, thus reducing fuel use and noise during the filling process. In addition, DRC of the spraying pump is able to adjust between minimum and maximum output in less than three seconds. This is especially important during headland entry and exit, where changing forward speeds and automatic section switching place heavy demands on rate control systems. DRC also improves variable rate application accuracy, where large changes in target rate may be required. Combined with ‘smart’ hydraulic control of the solution system, it allows spraying to be completed independent of the tractor engine rpm. PowrSpray comes as standard with Auto Filling, Auto Agitation Intensity control (where the tank agitation intensity decreases as the solution tank level lowers), Power Agitation (for maximum intensity agitation of difficult to mix products) and the Auto Dilute rinsing system. R900i Series PowrSpray machines can also be optionally equipped with the company’s automatic Section Control and BoomTrac auto boom levelling systems.