RMI 422
iMOW® RMI 422 robotic mower: automatically achieve the ideal lawn
General
If you want to mow a small to medium-sized lawn fully automatically, the STIHL RMI 422 iMOW® robotic mower is a practical solution. Its mulching mowing deck is powered by an integrated lithium-ion battery. During mulching, the lawn is only ever cut by a small amount, so that particularly fine grass clippings are uniformly introduced into the turf and the valuable nutrients benefit the soil again as fertiliser. This ensures a dense and healthy lawn. Using the multi-setting cutting height adjustment, your lawn is cut precisely to your desired height, thanks to the adaptive slope speed function even on uneven terrain with a gradient of up to 35 %. Its robust hood protects the iMOW® against obstacles and the weather. Integrated sensors detect contact with an object and initiate a change in the direction of the iMOW® robotic mower. The compact machine can be set up and organised in just a few steps via the control unit. Using the interactive mowing plan, the time window in which the automatic lawn mower can be operational can be specified for each day. Within these active times, the machine automatically determines the best times to mow for an optimum result. An installation kit is required for installation. The STIHL iMOW® robotic mowers comply with all applicable safety standards. Nevertheless, the iMOW® robotic mower is not a toy. During the iMOW® robotic mower's active times, in particular children, bystanders and animals must be kept out of the working area. Please refer to the operating instructions for further information.
Versions
-
RMI 422 Robotic mower
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Product versions
- RMI 422 PC iMOW® RMI 422 robotic mower: fully automatic for the ideal lawn
Technical specifications

Technical specifications
Technical specifications | Value |
---|---|
Maximum lawn area | 800 m² |
Maximum gradient | 35 % |
Cutting width | 20 cm |
Cutting height | 20-60 mm |
Average mowing duration (per week) | 16 h |
Rated power | 60 W |
Working speed | 4.450 rpm |
Battery type | Li-Ionen |
Weight | 9 kg |
Sound power level LwA 1) | 62 dB(A) |
Measured sound power level LWA | 60 dB(A) |
Uncertainty factor Sound pressure level KpA | 2 dB(A) |
Measured sound pressure level LpA | 49 dB(A) |
1) Does not come under the Noise Emissions Guideline 2000/14/EC
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Features

Standard equipment
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Accessories

Accessories
-
-
Kit S installation kit
The Kit S installation kit lays the foundation for the successful operation of the STIHL iMOW® robotic mower for smaller lawns. It is used to define the outer boundary for using the automatic lawn mower. The Kit S installation kit consists of 150 m of perimeter wire (diameter 2.3 mm), 150 fixing pins and three wire connectors.
-
-
-
Kit L installation kit
With the Kit L installation kit, a larger area can be prepared for operating the STIHL iMOW® robotic mower. It is used to define the outer boundary for using the automatic lawn mower. The Kit L installation kit consists of 400 m of perimeter wire (diameter 2.3 mm), 375 fixing pins and seven wire connectors.
-
-
-
ABO 600 storage box
The storage box is particularly suitable for storing the automatic lawn mower during the winter months and is available for all STIHL iMOW® robotic mower models.
Versions
- ABO 600 storage box
-
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Documents
Owners manuals and safety brochures
Languages | Date | Link |
---|---|---|
![]() |
10.11.2020 |