Selection iMow Robotic Mowers

RMI 422 P

Compact and smart robotic mower with powerful battery

General

The STIHL RMI 422 P iMow robotic mower provides the necessary performance reserves to care for medium-sized lawns. Its powerful lithium-ion battery drives the blade in the mulching mowing deck so efficiently that you can mow an area of up to 1,500 m² in just a few charging cycles with this iMow robotic mower. The automatic lawn mower processes the area using an especially efficient algorithm. The multi-setting cutting height adjustment lets you define the correct grass height with ease. During mulching, the grass length is only ever shortened by a few millimetres, which allows the lawn to grow gently and be constantly supplied with nutrients. Even on hilly terrain with a gradient of up to 40%, the cutting quality remains constant thanks to the adaptive slope speed function. A movable hood with sensors provides protection. It flexes in the event of contact with foreign objects, and its sensors transmit a signal to change direction when contact is made with an obstacle. The compact machine can be set up in just a few steps via a display and provides easy access to all performance data and the dynamic mowing plan thanks to its intuitive user interface. 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

Price

* Manufacturers recommended retail pricing. Prices reflect current recommended retail pricing and may be a promotional price. These prices are subject to change without notice. For more information about current promotions, please visit our Current Promotions page by clicking here.

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 Stockist for further information.

Technical data

Technical data

Cutting height mm 20-60
Mowing duration (average per week/h) h 25
Weight kg 9
Maximum gradient % 40
Cutting width cm 20
Maximum Lawn Area m² 1.500

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 Stockist for further information.

Features

Standard features

  • 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 gradient of up to 40% and denser grass growth. The treaded wheels of the automatic lawn mower are self-cleaning.

  • 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.

  • 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.

  • 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.

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 Stockist for further information.