FJD RM21 Robotic Mower

Autonomous robotic mowing for large turf areas

The FJD RM21 is built for sites that need consistent mowing across large areas without tying up staff on the same repetitive passes every week. It is a strong fit for golf courses, sports fields, turf farms, orchards, councils and large properties that want a more efficient way to maintain quality turf.

What makes the RM21 interesting is that it is not just a small residential robot mower scaled up a bit. It is designed for commercial-scale work, with RTK + LiDAR navigation, intelligent path planning, multi-zone management and app-based scheduling and monitoring. That makes it much more practical for larger sites with multiple work areas and tighter labour constraints.

Best fit for

• Golf courses and driving ranges
• Sports fields and sporting clubs
• Councils, schools and large landscaped facilities
• Turf farms and orchards
• Operators wanting to reduce routine mowing labour on repeatable sites

Why businesses consider the RM21

• Large-area mowing capacity of up to 108,000 m² over 72 hours in fast-charging mode
• Up to 12,000 m² per charge for practical day-to-day commercial coverage
• RTK + LiDAR fusion for more reliable navigation in signal-challenging areas and around trees
• Multi-zone management to handle separate mowing areas from one platform
• Remote app monitoring for scheduling, map creation and status checks
• 360° LiDAR obstacle detection with front and rear bumpers for safer autonomous operation
• Automatic return-to-charge behaviour for lower manual intervention

Key specs

• Cutting width: 635 mm
• Cutting height: 20-127 mm
• Travel speed: up to 6 km/h
• Recommended working slope: 15°
• Maximum climbing ability: 20°
• Battery: 4 kWh
• Working time: up to 5 hours
• Charging time: 5 hours standard / 3 hours fast charge
• Dimensions: 1330 × 853 × 980 mm
• Weight: 170 kg
• IP rating: IPX4

Optional capability add-ons

FJ Dynamics also shows the RM21 platform supporting options such as a ball picker kit for driving ranges and a line marker kit for sports field maintenance. That makes the platform more interesting for sites that want more than basic mowing alone.

Local support matters

Robot Solutions QLD can help assess whether the RM21 suits your site, terrain, workflows and maintenance expectations. If you are weighing up autonomous mowing for a large property, we can help work through the practical fit instead of just throwing a spec sheet at you.

Source: FJDynamics RM21 product pages and official imagery