R900i Sprayer in the field

Dual pumps of the PowrSpray system

Fill faster and spray more accurately with the unique hydraulically driven dual-circuit PowrSpray system. It allows you to fill your sprayer in just in 10 minutes* and gives you 98 percent* rate control accuracy.

• Save time with fast and efficient filling, spraying, and agitation 
• Easy to operate with the convenience of push-button control

*NOTE: Measured without priming; dependent on tank size. The 98 percent accuracy figure is derived from MyJohnDeere™ Field Analyzer Beta work totals application quality.

The dual-circuit layout maximizes efficiency and ease of use. Each circuit is completely independent, features a dedicated centrifugal pump, and is optimized for specific functions. Cross contamination between the two circuits is not possible, helping to reduce rinsing requirements and residual liquid disposal.

Filling circuit

Filling circuit

Filling circuit consists of the self-priming centrifugal filling pump (1) which fills the solution tank and provides clean water to the eductor.

The filling circuit is separated from the spray circuit and not used during spraying, therefore is not contaminated with chemicals and does not need to be rinsed.

• Automatic filling with programmable fill level
• Solution tank overflow protection

Active Pause

Active Pause enables the operator to incorporate crop protection chemicals and rinse chemical containers with clean water and pauses filling from the solution tank. Once the eductor is switched off, the filling pump revs up again to maximum fill capacity.

• No race against filling capacity when using the eductor
• Enables the operator to start loading plant protection products with sufficient water in the solution tank
• Efficient and stress-free filling

Spraying circuit

Spraying circuit

The spraying circuit is equipped with a centrifugal spray pump that provides liquid to the spray boom and agitation. Only the spray circuit gets in contact with the chemicals and therefore is the only part of the machine that needs to be rinsed. 

• Designated spray and fill circuits limit remaining volume in the spray system – less losses means better rinsing
• Keeps the agitation mixing during transport, which limits time losses and enables immediate spray application start
• Injector-based agitation with power agitation mode and automatic agitation intensity to mix and reduce foaming

Direct Rate Control

Spraying pressure and application rate are controlled by adjusting the speed of the centrifugal spray pump via the load sense hydraulic pump drive. This load sense hydraulic drive enables a fast and accurate rate control.

• Highly reactive Direct Rate Control – better agronomic results after the application
• Quick spray pressure adjustment even with wider booms and fast section switching (Section Control)
• Less wear with reduced moving parts – no electrical pressure regulator needed
• Overdosing or underdosing when speed changes is almost eliminated
• Pump dry-run protection once solution tank is sprayed empty

R900i operator’s station layout with Solution Command system

R900i micro display with keypad at operator’s station

Solution Command makes filling, spraying, and rinsing automated. The electrically controlled solution system takes away the guesswork in valve settings by automatically positioning the valves without operator mistakes.

The design of the operator’s station makes operation easy and convenient. Icons on micro keypad makes selection easy and helps to limit the risk of mistakes when filling, spraying, or rinsing.

The PowrFill™ chemical eductor hopper, spray gun, and clothing lockers stored behind the shielding with filters and hose connections are easily accessible for operation. The chemical safety card holder is located near the platform, making information about the load readily available.

Benefits of the operator’s station design include:

• Less risk of mistakes with Solution Command for automated filling spraying and rinsing
• Micro display and keypad to control filling, agitation, rinsing, and transfer
• Light-emitting diode (LED) operator station light (optional)
• Filters and hose connections are protected from dirt from tractor wheels by the front door shielding
• Micro display and keypad are safely stored behind a protective cover
• Optimized filling capacity using 7.62-cm (3-in.) fill hose connection and independent 1200-L/min (317-gpm) filling pump
• Transfer liquid from the main solution tank to an external point with 5.08-cm (2-in.) transfer valve (optional)
• 08-cm (2-in.) quick connector for filling the rinse water tank (optional)
• Improved safety during filling with closed chemical transfer connection (optional)
• Stress-free loading with the pause function using PowrFill chemical eductor hopper
• Clothing locker split into two compartments
• 600-L (158.5-gal.) rinse water tank content can be easily transferred to the main solution tank using the keypad
• Easy access to solution system filters
• Direct rate controls spray pressure by pump speed variation. The constant flow provides the base for pulse width modulation as part of Individual Nozzle Control Pro.

Different spray systems available for all crop requirements

To match different applications five different spray systems are available. All spray systems have one thing in common: pressure recirculation. The pressurized liquid flows up to the nozzles even when not spraying. This ensures that the right concentration and the correct pressure is quickly reached and prevents underdosing or weed triangles at spray start. Even when weather conditions suddenly change, the full circulation functionality enables the operator to rinse out spray lines without spraying.

Available spray systems:

1. Pressure recirculation spray system at 50-cm (19.7-in.) nozzle spacing (section layout)
2. Pressure recirculation spray system at 25-cm (9.8-in.) nozzle spacing (section layout)
3. TwinSelect™ automatic nozzle control spray systems at 50-cm (19.7-in.) nozzle spacing (section layout)
4. Individual nozzle control spray systems at 50-cm (19.7-in.) nozzle spacing (virtual section layout)
5. Individual nozzle control spray systems at 25-cm (9.8-in.) nozzle spacing (virtual section layout)
6. Individual Nozzle Control Pro™ spray systems at 50-cm (19.7-in.) nozzle spacing (virtual section layout)
7. Individual Nozzle Control Pro spray systems at 25-cm (9.8-in.) nozzle spacing (virtual section layout)

Benefits of pressure recirculation functionality includes:

• Limits the risk untreated or underdosed areas or weed triangles at spray start.
• Limits overlap or skips with fast on-off nozzle switching.
• Less sedimentation when spray is off; recirculation liquid passes though the spray lines and returns into the tank
• Fully charged with spray on – spray lines are supplied with liquid from both ends, which limits underdosing at boom outer ends during spray start

TerrainCommand Pro automatically adapts boom position to field contours

TerrainCommand Pro spray boom automation

TerrainCommand Pro automatically maintains a constant spray height above the crop per wing on uneven ground and in changing crop conditions, resulting in an effective deposition of spray liquid and less dissipated chemicals, better crop penetration, and reduced spray drift.

TerrainCommand Pro is offered with three sensors (one sensor per wing and one sensor next to the center frame) or five sensors (two sensors per wing and one sensor for the center frame). The five-sensor system is only available for 27-m (88.6-ft) booms or wider.

Ultrasonic sensors mounted at each end of the boom measure the height of the boom wings above the target. If the slope of the field changes and the spray boom is no longer at the desired distance to the ground or crop surface, TerrainCommand Pro controls the boom variable geometry, tilt, and height automatically.

Benefits of TerrainCommand Pro include:

• More operator comfort due to boom positioning automation and headland automation modes
• Increased spraying accuracy with optimum boom height above crop
• Hybrid mode finds the balance between soil and crop to prevent dipping
• Automatic boom control enables faster spraying
• Ability to spray in low light conditions (night)
• Possibility to use wider booms, resulting in fewer passes
• Works in full or symmetric boom folded position

TerrainCommand Pro in combination with AutoTrac™ automatic guidance system and Section Control offers better machine utilization. It enables spraying at night when spraying conditions are often much better (less wind and drift).

TerrainCommand Pro uses a dedicated proportional hydraulic valve to control the variable geometry on each boom wing. Proportional hydraulics offer both faster and smoother operation, with response modulated to the amount of boom movement necessary. The proportional hydraulic valve is also equipped with a temperature sensor that measures oil temperature. This feature provides compensation for the flow difference of the oil in different temperatures, enabling accurate variable geometry adjustments.

R900i stability in transport

R900i stability in the field

The round-shaped polyethylene tank is fully cradled by the frame and gives the machine a low center of gravity. This comes together with standard double-linked ProRoad axle suspension, providing stability on the road or in the field.

With its low center of gravity and even weight distribution, the R900i Series is built for stability. The entire mainframe is designed especially for the job. The heart of the mainframe is the cross structure in the center section to redirect forces, providing the strength for a long lifetime. The frame design cradles the large polyethylene tank perfectly. The special tank shape offers deep sump while the steeply sloping bottom limits chemical residue. Due to the special tank design, additional tank baffles are not needed. It is easier to agitate liquid due to the smooth tank that has less risk of   spray solution sticking to the inside of the tank.

The heavy-duty axle is fully integrated and comes standard with ProRoad double-linked axle suspension.

The frame, tank, and single axle design offers better maneuverability. Regardless of the boom position, the level weight distribution helps to always keep the machine steady.

Maintenance-free suspension absorbs shocks

Benefits of tank, frame, and axle design include:

• Frame, axle, and tank design with lower center point of gravity supports stability in the field and on the road
• Round-shaped polyethylene tank with smooth surface for perfect agitation and easier rinsing inside and outside
• Deep sump for better emptying, even on hillsides
• No baffles or dead corners supports better solution mixing
• Perfect readout with digital tank level indication and dual-stage dry liquid level indicator
• Four maintenance-free polyurethane dampers absorb shocks, providing stability and uptime
• ProRoad double-linked axle offers better maneuverability to prevent leaning in corners