Official STIHL Importer
Submit Arrow Right
Selection iMOW® Robotic Mowers

RMI 422

Compact and smart robotic mower with mulching function

General

RMI 422
RMI 422

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



The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Technical data

Technical data

Technical data Value
Sound power level LwA dB(A) 1) 62
Working speed rpm 4.450
Cutting height mm 20-60
Mowing duration (average per week/h) 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
Maximum gradient % 35
Cutting width cm 20
Maximum lawn area m² 800
Measured sound pressure level LpA dB(A) 49

1) Does not come under the Noise Emissions Guideline 2000/14/EC

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Features

Standard features

  • Standard equipment Zoom
    Standard equipment

    The standard equipment of the STIHL iMOW® robotic mower includes the machine, the docking station, four pegs for fastening 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.

  • Bright LCD display Zoom
    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 particularly 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.

  • Movable hood Zoom
    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 sensors integrated in the movable hood detect contact with the object on the lawn and initiate a change of direction.

  • All-round protection Zoom
    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.

  • Docking station Zoom
    Docking station

    The docking station is included in the standard equipment of 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 Zoom
    Mulching mowing deck

    The sturdy mulching blade of the STIHL iMOW® robotic mower ensures a precise cutting pattern even with 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. It is located together with the cleaning disc in a mowing deck. The blade can be changed without the need for tools.

  • Offset drive home Zoom
    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 Zoom
    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 Zoom
    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 Zoom
    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 inclination of the automatic lawn mower and synchronises its propulsion.

  • Dynamic mowing plan Zoom
    Dynamic mowing plan

    Using the interactive mowing plan of the STIHL iMOW® robotic mower, 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, for instance, it automatically catches up later within the specified time window. The dynamic mowing plan can be called up and executed via the control panel.

  • Wheels with traction pattern Zoom
    Wheels with traction pattern

    The smooth-running wheels with traction pattern ensure that the STIHL iMOW® robotic mower moves with even greater 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.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Accessories

Accessories

    • AFN 075 fixing pins Zoom
      AFN 075 fixing pins

      The fixing pins are available as basic accessories for operating the STIHL iMOW® robotic mower. They are used to anchor the perimeter wire at the edge of the area to be mown by the STIHL iMOW®. One unit comprises 75 fixing pins.

    Versions

    • ARB 501 perimeter wire Zoom
      ARB 501 perimeter wire

      The perimeter wire defines the working area of the STIHL iMOW® robotic mower. The ARB 501 comprises 500 m on a coil. The wire is 3.4 mm thick is and suitable for installing the automatic lawn mower.

    Versions

    • ADV 010 wire connectors Zoom
      ADV 010 wire connectors

      The wire connectors are available as basic accessories for operating the STIHL iMOW® robotic mower. They are used to join several perimeter wire segments. Each package contains 10 wire connectors.

    Versions

    • AVS 100 front wheels Zoom
      AVS 100 front wheels

      The heavy front wheels ensure that the STIHL iMOW® robotic mower can be used safely on especially hilly terrain. The change in weight distribution improves the automatic lawn mower's grip on inclined surfaces.

    Versions

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.