Index
Machine dimensions
Figure 1 AX-1 front view. Dimensions
Figure 2 AX-1 top view. Dimensions
|
AX-1 |
Dimensions |
|
Length |
2141 mm |
|
Width |
1826 mm – 2276 mm |
|
Height |
1545 mm |
|
Spray Width |
1307 mm - 1572 mm |
|
Net Weight |
284 kg |
|
Total Weight with Full Load |
362 kg |
Track width
The AX-1 track width can be configured from 1550 mm to 2000 mm (center-to-center wheel distance), with adjustment increments of 10 mm.
Track width is adjusted using wheel spacers. The AX-1 is delivered with a center-to-center wheel width according to customer specifications.
If you need to modify the track width after delivery, additional wheel spacers, as well as the correct bolts and nuts, can be purchased from Kilter. 
Figure 3 AX-1 Back view. Dimensions
AX-1 is available with two spray width configurations:
|
Wheel C-C width |
Max nr. Of spray modules |
Max spray width |
|
1550 mm – 2000 mm |
5 |
1307 mm |
|
1600 mm – 2000 mm |
6 |
1572 mm |
The AX-1 motor housing has a height of 267 mm and a free internal width of your C-C wheel width minus 517 mm.
Main components
- Tank module
- Boom
- Spray Module
- Control Center
- Generator
- Bumper/Collision sensor
- Wind sensor
- Mobile data antenna
Figure 4 AX-1 main components
Figure 5 AX-1 boom and spray modules
Tank module
The tank module is the primary unit for managing fluid flow and storing spray liquids. It contains three separate tanks, along with valves, a pump, hoses, and filters. Details are further specified.
|
Tanks |
|
|
Spray Tank |
52 L |
|
Rinse and Dilution Tank |
17 L |
|
Clean Water Tank |
15 L |
Figure 6 AX-1 tank
1. Spray tank
2. Rinse water tank
3. Clean water tank
Spray Tank
CAUTION: The liquid volume in the tank must never exceed the nominal capacity.
The spray tank has a total volume of 55 L and a usable volume of 52 L. The tank is equipped with two return flows: a low-level flow for normal operation and one connected to a wash nozzle for internal tank cleaning. From the tank basin, there is only one outlet, which serves both for system circulation and tank drainage. The tank is sloped toward the basin to ensure a steady supply of spray mixture even at low remaining volumes during spraying.
Rinse Water Tank
This water tank is used for internal rinsing of the spray system and for diluting the spray mixture. It is located at the base of the tank module and has a total volume of 17 L.
Clean Water Tank
The clean water tank is to be filled with clean water that can be used to rinse off spray residues in case of spills. The tank has a total volume of 15 L and is equipped with a tap (14) on the right side near the generator.
Valves
The machine’s spray agent management system is controlled by eight manual valves located on the tank unit’s control panel.
Figure 7 AX-1 liquid system
- Tank selector valve
- Bypass valve - boom
- Wash nozzle valve
- Tank return valve
- Disengagement valve - boom
- Drain valve - system
- Drain valve - tank
- Fixed restrictor valve
Function of each valve:
- Select between the spray tank and the rinse water tank for the pump's inlet.
- Open/close the bypass between the high-pressure side and the tank’s return hoses.
- Open/close the return hose supplying the tank’s wash nozzle.
- Open/close the tank’s standard return hose.
- Open/close the liquid supply to the boom.
- Drain spray liquid from the system.
- Drain spray liquid from the tank.
- Fixed restriction on the tank’s standard return hose.
Circulation Circuit for Spray Liquid
In the AX-1, the spray liquid circulates in a loop from the tank, out to the spray units mounted on the boom, and back to the tank. This forms the main circuit for the circulation of spray liquid. Changes to this circuit is performed manually using the valves on the tank module.
Valve Positions
The liquid flow in the machine’s spray system is controlled by operating the machine’s manual valves. Different configurations of valve positions enable six different modes for performing normal operations and system rinsing. The diagram below shows the positions of each valve to achieve various functionalities during use.
To perform cleaning of the herbicide system, Kilter Remote offers a cleaning protocol within the app with step-by-step instructions and valve positions. Follow this link to the relevant article.
Normal operation
The pump circulates spray liquid from the main tank, out to the spray unit, and back again. Use this setting during spraying.
Rinse system with clean water
The pump pumps water from the water tank to the nozzle blocks. Return flow goes to the wash nozzle in the main tank. Use this setting to rinse the system (hoses, nozzles, and tank) while also washing the tank.
Rinse tank with clean water
The pump pumps water from the rinse water tank to the wash nozzle. Valve 5 remains closed, while Valve 2 is open to disconnect the loop to the boom. Use this setting for maximum washing efficiency from the wash nozzle in the main tank.
Drain system
The pump pumps spray liquid out through the boom and nozzle blocks before draining it at the drain point. Valve 6 remains open, while return valves 3 and 4 to the spray tank are closed. Use this setting to drain the system after rinsing.
Drain tank
Manual draining of the spray tank for liquid using gravity only, not the pump. Draining occurs at the drain point when Valve 7 is opened. Use this setting for manual draining of spray liquid in the spray tank or to drain remaining liquid that the pump was unable to remove.
Dilute spray agent in the tank
The pump pumps water from the rinse and dilution tank into the spray tank's return flow. Valve 5 and 3 remain closed, while Valve 2 and 4 are open. Use this setting when the concentration of spray agent in the spray tank needs to be diluted.
Rinse system while mixed spray agent is in the tank
The pump pumps water from the rinse and dilution tank to the nozzle blocks. The wastewater is discharged at the drain point. The valve positions are the same as in Drain System, except Valve 1 is in the vertical position. Use this setting to clean the nozzle blocks without emptying the spray tank.
Other Components in the Tank Module
Figure 8 AX-1 tank module
- Water filling for clean water tank (handwashing)
- Water filling for rinse and dilution tank
- Pressure gauge for spray pressure
- Connection point for measuring equipment
- Bumper sensor
- Water tap for clean water (handwashing)
- Tank lid
- Suction filter
- Tank gauge
- Pump
- Connection point for measuring equipment
- Drain point
Tank gauge
The scale provides an indication of how much spray liquid is left in the tank. The machine must be on a horizontal surface to display the correct volume.
The spray tank has a liquid level indicator for manual reading of the liquid level. The scale has a resolution of 1 liter per mark.
Figure 9 AX-1 tank gauge
Boom
The boom is the part of the machine that carries the spray modules and applies the treatment to the ground.
The AX-1 keeps the boom at an optimal height of 15 cm above the ground, which ensures precise and even spray coverage while minimizing drift.
This height is maintained automatically, even on uneven terrain. Sensors in the spray units continuously measure the distance to the ground and adjust the boom position in real time.
In most cases, no manual adjustment is needed. If required, the boom height can be adjusted manually using the Kilter Remote app.
Boom height
The boom can be mounted to the elevator in two different positions; low and high (60 mm difference). The boom is mounted at the factory and rarely needs adjustment. In the images below you can see the difference between the 2 configurations. If you need to adjust boom height contact your dealer or Kilter support (LINK).
Figure 10 Max and min boom hight with high boom configuration
Figure 11 Max and min boom hight with low boom configuration
-
Spray module
- Boom mounting bracket
- Connector for nozzle outlet
- Connector for nozzle inlet
- Nozzle inlet filter
- Communication connection
- Power connection
- Nozzle protection plate
- Nozzle block
- Height sensor
- Camera
Figure 12 Spray module details
Figure 13 Spray module details
The spray module consists of a steel cabinet that amongst others contains a camera, a blitz, a height sensor and a nozzle block. On each side of the nozzle block are hoses for the inlet and outlet of spray liquid, equipped with quick connectors that attach to corresponding parts on the spray boom. The inlet is on the right side, and the outlet is on the left. The top of the unit features mounting brackets for attachment to the boom, along with connection points for power and communication with the control center.
If you need to replace a defective spray unit, see the maintance article here on how to swap units on the boom.
IMPORTANT: The spray units should normally remain mounted on the boom. If removed, they must be handled with great care.
Nozzles
Each spray unit has a nozzle block consisting of two rows with a total of 42 nozzle outlets. Each nozzle outlet operates independently. During operation, droplets of spray liquid are discharged when the machine passes areas identified as weeds. The nozzle blocks are controlled by electronics located inside each spray unit and the machine's control center.
Droplets of spray liquid may remain on the nozzle modules even after the system has been rinsed following spraying. These droplets may drip, and the operator must avoid spills. Do not touch the nozzle blocks without approved protective equipment. Never place your head beneath a nozzle block, either before, during or after use.
|
Operating Pressure Nozzles |
0.95 Bar |
|
Maximum System Pressure |
4 Bar |
Machine control center
Important: This unit must not be operated by the user, except for the external main power switch
The machine has a control center located at the top of the robot. This unit can be considered the machine's "brain," containing electronics and control systems to operate the robot's functions. On top of the cover are two GPS antennas, used for precise positioning during autonomous operation. At the front of the cover is a camera for observing the surroundings in front of the machine. This information is used to position the robot when driving in rows and performing turns.
- GPS antennas
- Main power switch
- Camera
Figure 14 AX-1 control center
-
Generator
The machine is powered by a Honda EU22i gasoline generator. The generator supplies power to the batteries located in the control unit. The generator's load is automatically adjusted according to the power demand of the robot. This demand is amongst others regulated by the amount of weeds being sprayed at any given time. If the weed density in the field is high, causing the machine to work under heavy load, the generator should be set to high-load mode to provide sufficient power to the machine.
Figure 15 Generator
|
Generator |
|
|
Model |
EU22i |
|
Continuous Power Output |
1800 W |
|
Maximum Power Output |
2200 W |
|
Tank Size |
3.6 L |
|
*Extra tank Size |
5.0 L |
|
Runtime at Max Continuous Load |
3.2 hours |
|
Fuel |
Gasoline |
Wind sensor
The AX-1 has a dedicated wind sensor mounted on the top of the robot whose primary purpose is to measure wind and automatically pause spray operations if wind is too strong. Only Kilter can activate or deactivate this function remotely on your robot, contact support if you want to know more.
Wheels
Important: The electric motors must not be disconnected from the machine or serviced by anyone other than authorized service technicians.
The two front wheels are powered by individual electric motors, providing sufficient propulsion for the machine. Individual control of each wheel allows the machine to maneuver and rotate around its own central axis. The size of the wheels ensures good ground clearance and low pressure on the surface for gentle operation in the field.
The electric motors are maintenance-free and should only be handled by service technicians.
|
|
Watt |
kWatt |
|
Total battery capacity (4 batteries) |
142,1 x 4 = 568,4Wh |
0,568 kWh |
|
Wheel motors - continuous electrical power |
879W |
0,879kW |
|
Generator - continuous electrical power |
1800W-2200W |
1,8kW-2,2kW |