M944i Trailed Sprayer | Sprayers

6-cylinder dual pumps collectively work together to fill the sprayer

Powerful pumps for spray and fill capacity

Optimize spraying performance

The M900 and M900i models are equipped with two durable, 6-cylinder self-priming piston diaphragm pumps designed for spray tasks.

Pumps and filling connections are in protective positions on top of the frame and partly protected by the covers. Connect the 7.62-cm (3-in.) filling hose to 7.62-cm (3-in.) filling connection; select the levers and filling starts.

An integrated, non-return check valve prevents a system backflow. The ball valve at the filling hose connection comes standard to allow easier disconnection of the filling hose.

Two self-priming pumps with 560-L (148-gal.) capacity and a collective 12 cylinders work together when filling
In spray mode, one pump is used for spraying and one pump is used for agitation functions
Solution system flow delivers a maximum output to the boom of 250 L/min (66 gpm)
Pumps are located on top of the mainframe to keep clearance at the drawbar and remain protected by shielding
Camlock coupling with blind cap and 7.62-cm (3-in.) filling connection
Maximum pump technical pressure is 20 bar (290 psi), and the system axillary pressure is set to 10 bar (145 psi) to support a longer pump lifetime
Non-return check valve in the solution system prevents backflow
Optional pump oil level sensors display warning when pump oil level is insufficient
Pump drive – wide-angle power take-off (PTO) is in base, hydraulic motor for pump drive is optional
Pump protection – using the filling connection, liquid entering the pump passes a large 30-mesh filter first

Once low flow application rates are frequently used, it is highly recommended to upgrade the machine with the low flow rate bypass kit (BWZ10081).

Pressure recirculation spray system enables concentrated spray start

Air valves ensure liquid circulates up to the nozzle bodies

Full circulation with spray off (top), full supply with spray on (bottom)

Prevent underdosing or weed triangles at spray start with the pressure recirculation spray system. Pressurized spray liquid circulates right up to the nozzles. Each nozzle body is air or electric operated to provide fast on/off switching, which prevents missed areas at spray starts. The air supply lines are connected to the nozzles in a section layout.

The spray liquid is circulated directly through the spray line under pressure. This ensures the right concentration under the right pressure directly at the nozzle body and eliminates triangles of weeds in the field and under dosing when starting spraying.

This circulation also allows operators to rinse out spray lines without spraying (such as when weather conditions change).

Benefits of pressure recirculation functionality in the spray system include:

Limits the risk of untreated, underdosed areas or weed triangles at spray start
Limit overlap or skips with air-controlled valves that enable fast on-off nozzle switching
Fail-safe action in case air pressure is lost – valve springs close the nozzle body, preventing dripping or leakage
Less sedimentation when spray is off – re-circulation liquid passes though the spray lines and returns into the tank
Fully charged with spray on – spray lines are supplied from both ends, which limits underdosing at boom end during spray start
Air distribution to nozzles is based on a section layout – less dead volume compared to section valves design
Pressure recirculation functionally comes on the pressure recirculation spray system with 25- or 50-cm (10- or 20- in.) nozzle spacing, TwinSelect™ spray systems, and individual nozzle control spray systems

TwinSelect™ 2.0 automatic nozzle control selects the right nozzle for the task

In-cab nozzle control saves valuable time when switching between nozzles

Two of four nozzles can be selected to switch

The optional TwinSelect 2.0 in-cab nozzle control with pressure recirculation functionality allows immediate switching between two different nozzles, either manually or automatically. It helps to save valuable time whenever there is a need to quickly change nozzles and allows a wider range of spraying speeds for increased productivity.

TwinSelect 2.0 provides four nozzle outlets on the rotating body, with the ability switch between two nozzle positions from the cab.

Benefits of TwinSelect include:

Switching between standard and drift-reducing nozzles for field borders or spraying headlands
Nozzle changeover between liquid fertilizer and chemical spraying operations
Wider range of operating speeds by moving between different nozzle sizes as speed changes
Adapts to variation in application rates in variable rate treatments
Maintain a desired droplet size at different spray volumes and forward speeds
Comes with pressure recirculation functionality
- Nozzle switching prescription application maps are compatible

TwinSelect enables switching within four modes:

Spray on position nozzle 1
Spray on position nozzle 2
Spray on position nozzle 1 + 2
Automatically select spray on position nozzle 1, 2, or 1 + 2

Switching between nozzles in the display

TwinSelect nozzle control settings

TerrainCommand Pro™ spray boom automation adapts boom position to the contours your field

Use TerrainCommand Pro spray boom automation even with reduced boom width

Sensor with hybrid mode capabilities

A stable boom ride is one of the basics for a successful spray application.

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, less dissipated chemicals, better crop penetration, and reduced spray drift.

TerrainCommand Pro can be 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, the integrated IMU sensors the measure the inertia. 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
Increased spraying accuracy with optimum boom height above crop
Hybrid mode finds the balance between soil and crop prevents 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 with 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.