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STIHL RMI 422 iMOW® Robotic Lawn Mower
Robotic mower for lawns up to 800m²
The compact RMI 422 robot mower will mow small to medium sized lawns of up to approx. 800 m² and is designed to do this in the shortest time possible, allowing you full access to your garden when you want it.
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Please call our Sales, Service or Parts teams on 01349 863854 for any enquiries.
STIHL RMI 422 iMOW® Robotic Lawn Mower
To help keep those edges and borders in tip-top shape STIHL are offering a free FSA 45 AI Line grass trimmer with any STIHL iMOW® purchased from your local specialist iMOW® dealer.
The compact RMI 422 robot mower will mow small to medium sized lawns of up to approx. 800 m² and is designed to do this in the shortest time possible, allowing you full access to your garden when you want it. As it is fully automated, once iMOW® is installed, it will mow, charge and adapt its schedule all by itself. If the robot mower battery runs low or it starts to rain, the RMI 422 will return itself to the docking station, and depending on how much of the lawn still needs to be cut, it will decide whether to charge itself quickly or slowly helping to conserve power.
Fitted with a robust mulching blade, your grass will be finely shredded returning vital nutrients back into the soil. This also eliminates the need to dispose of any grass clippings. The iMOW® RMI 422 boasts 15 different cutting height settings, varying from 20mm-60mm so you can adjust it to suit you and your lawn! The RMI 422 comes with a 5-year extended domestic warranty (subject to registration and annual servicing). For more information, please contact your local iMOW® dealer.
The STIHL iMOW® robotic mowers comply with all applicable safety standards. However, the iMOW® robotic mower is not a toy. During the iMOW® robotic mower’s active times, children, bystanders and animals must be kept out of the working area. Please refer to the operating instructions for further information.
Standard features
Movable hood
The movable hood with sensors protects the STIHL iMOW® robotic mower from weather and obstacles. If the iMOW® robotic mower comes up against an obstacle during automatic mowing, the integrated sensors detect contact with the object and changes direction.
Bright LCD display
The control panel is integrated into the housing of the STIHL iMOW® robotic mower and features a large LCD display. It provides a intuitive way of recording all settings, as well as a way of viewing all functions and performance data of the automatic lawn mower. The high-contrast, bright display is easy to read even in sunlight.
All-round protection
The STIHL iMOW® robotic mower is equipped with various sensors. As soon as someone attempts to pick it up while mowing, it stops. In addition, the automatic lawn mower can be protected with a PIN code. If it is configured so that it can only be operated by entering a PIN, it is protected from unauthorised use.
Standard equipment
Standard equipment for the STIHL iMOW® robotic mower includes the machine, the docking station, four pegs for securing the docking station to the ground as well as an iMOW® ruler as an aid for laying the perimeter wire. An installation kit is also required to install the iMOW® robotic mower.
Docking station
The docking station is included as standard equipment for the STIHL iMOW® robotic mower. It is both the robotic mower’s home and where it charges its battery. At the same time, it is the starting point for every mowing operation. When driving, the automatic lawn mower is guided by the signal transmitted by the perimeter wire at the edge of the lawn. This signal is fed via the docking station. If it rains or the battery runs down during mowing, the iMOW® robotic mower independently returns to the docking station and recharges its battery. Thanks to its intelligent charging system, the iMOW® decides independently whether an express charge is necessary due to another imminent mowing operation or whether the battery should be charged more gently in normal mode. The docking station can be placed within or outside the lawn area.
Mulching mowing deck
The sturdy iMOW® mulching blade ensures a precise cutting pattern even on higher grass growth. Its rotational direction changes automatically every time the blade stops. This means that the blades of the automatic lawn mower wear evenly. The blade can be changed without the need for tools.
Offset drive home
By default, the iMOW® robotic mower travels back home to the docking station along the perimeter wire. If required, and depending on the condition of the edge of the mowing area, the iMOW® can also travel to its docking station with an alternating offset to the perimeter wire.
Control panel
The control panel with integrated and bright display is used on all STIHL iMOW® robotic mowers for easy setup and fast display of machine information. The high-contrast display means the control panel can also be used in sunlight. The panel is flush-mounted in the housing of the automatic lawn mower.
iMOW® robotic mower drive
The STIHL iMOW® robotic mowers feature a drive that enables them to mow hilly terrain with consistently high quality. The RMI 422 can handle gradients of up to 35%, while the other automatic lawn mowers from the RMI 4 series can cope with a gradient of up to 40%.
Adaptive slope speed
Using the adaptive slope speed function, the STIHL iMOW® robotic mower adapts its speed on uneven terrain. The integrated tilt sensor constantly analyses the position of the automatic lawn mower and adapts its speed accordingly.
Dynamic mowing plan
Using the STIHL iMOW® robotic mower interactive mowing plan, individual time windows during which the machine can be in operation can be defined for each day. Within these active times, the automatic lawn mower automatically determines the best times to mow for an optimum result. If it has to interrupt mowing because of rain, it automatically catches up later within the specified time window. The dynamic mowing plan can be called up and amended via the control panel.
Wheels with traction pattern
The smooth-running wheels with traction pattern ensure that the STIHL iMOW® robotic mower moves with precision. Especially on hilly lawns with a slight gradient of up to 35% and denser grass growth. The treaded wheels of the automatic lawn mower are self-cleaning.
Technical data
| Technical data | Value |
|---|---|
| Maximum lawn area m² | 800 |
| Working speed rpm | 4.450 |
| Cutting height mm | 20-60 |
| Average mowing duration per week h | 16 |
| Uncertainty factor Sound pressure level KpA dB(A) | 2 |
| Nominal output W | 60 |
| Weight kg | 9 |
| Measured sound power level LWA dB(A) | 60 |
| Max. gradient % | 35 |
| Cutting width cm | 20 |
| Battery type | Lithium Ion |
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