ManufacturerANDREAS STIHL AG & Co. KGRobot model · No. 12

RMI 422 P

Consumer Robots · Lawn Mowing

CommercialGermany

Key factAutomatic Charging · Automatic Mowing Scheduling

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Model details

Model specifications

Automatic ChargingYES

Automatic Mowing SchedulingYES

AvailabilityCommercially Not Available

Battery Capacity in AhNot independently verified for exact revision

Battery Charger Input VoltageConfiguration-dependent; verify on regional power supply

Battery ChemistryLithium-ion

Battery Energy104 Wh

Battery VoltageNot independently verified for exact revision

Boundary SystemPhysical perimeter wire

BrandSTIHL

Cellular ConnectivityNot supported as standard on RMI 422 P

Commercial Product NameSTIHL iMOW RMI 422 P

Cutting Height AdjustmentManual

Cutting SystemRotary mulching blade

Cutting Width20 cm

Docking StationRequired

Exact ModelRMI 422 P

Ingress Protection RatingRevision-dependent; not conclusively established for exact article number

Maximum Active Time40 hours per week

Maximum Climbable Gradient40%

Maximum Cutting Height60 mm

Maximum Forward Travel SpeedNot publicly disclosed/verified

Maximum Recommended Mowing Area1500 m²

Maximum Slope AngleApproximately 21.8°

Minimum Cutting Height20 mm

Mowing Blade Speed4450 rpm according to RMI 422 family manual

NationalityGermany

Navigation SystemBoundary-wire-guided autonomous mowing

Obstacle DetectionBumper collision sensor

Obstacle ResponseStops or changes direction upon collision

Onboard Graphical DisplayYES

Product FamilyiMOW RMI 422 Series

Production Lead TimeNot publicly disclosed/verified

Published 80% Quick Charging Time80 minutes

Published Mowing Time to 80% Charge60 minutes

Rain SensorIncluded

Robot HeightApproximately 27 cm

Robot LengthApproximately 60 cm

Robot TypeAutonomous robotic lawn mower

Robot Weight10.0 kg

Robot WidthApproximately 43 cm

RTK-GNSS NavigationNO

Satellite NavigationNO

Shipping DurationNot publicly disclosed/verified

SLAM NavigationNO

Smartphone App ControlNot supported as standard on RMI 422 P

Sound Power Level62 dB(A)

Sound Pressure Level49 dB(A)

STIHL 2024 Catalog Article Number6301 012 1404

Typical Full Charging Time100 minutes

Typical Mowing Time per Full Charge80 minutes

About the RMI 422 P

Autonomous residential robotic lawn mower with a perimeter-wire navigation system, 1,500 m² rated lawn coverage, 40% slope capability, 20 cm mulching blade, 20–60 mm adjustable cutting height, automatic charging, rain sensing and programmable mowing schedules. The RMI 422 P belongs to STIHL's legacy iMOW range and is associated with STIHL Tirol's robotic mower development and documentation.

Typical applications: Lawn Mowing.

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