The FJD RM21 Multi-Functional Robotic Mower is a high-performance autonomous robotic mower designed for maintaining large open areas with minimal labour input.
Ideal for sports grounds, large estates and small airfields, the RM21 uses advanced LiDAR and RTK positioning to mow accurately and efficiently without constant operator input. This allows you to reduce labour costs, improve consistency and maintain a professional finish across large areas.
Once set up, the RM21 can operate independently across multiple zones, following optimised mowing paths to ensure full coverage without overlap or missed sections. This not only improves efficiency but also delivers a more consistent finish compared to manual mowing.
Its autonomous capability makes it particularly well suited to environments where regular maintenance is essential but labour availability is limited. Whether maintaining sports turf to a high standard, keeping estate grounds tidy, or managing grass airstrips safely and reliably, the RM21 provides a dependable solution that works around your schedule.
With automatic return-to-charge functionality and app-based control, the machine can be monitored and managed remotely, reducing the need for on-site supervision. The result is a modern, labour-saving mowing solution that helps you maintain large areas efficiently while freeing up time for more valuable tasks.
🔹 Key Specifications & Performance
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Max operating area (3 days): 23 acres
→ Equivalent to around 13–15 full-size football pitches -
Coverage per charge: 3.2 acres (13,000 m²)
→ Roughly 1.5–2 football pitches per cycle - Working time: up to 5 hours per charge
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Automatic recharging
→ Returns to charging station with no operator input -
Cutting width: 635mm (25")
→ Efficient coverage for large open areas -
Cutting height: 20–127mm (0.8"–5")
→ Suitable for sports turf through to rough grass -
Maximum slope capability: 20°
→ Handles banks, undulations and uneven ground - Ground speed: up to 6 km/h
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Battery: 4 kWh electric system (48V)
→ Quiet, low-maintenance and emission-free operation -
Machine weight: 170 kg
→ Stable operation without damaging turf
🔹 Smart Technology Features
- Autonomous mowing with LiDAR 3D mapping
- Centimetre-level RTK accuracy for precise coverage
- Smart path planning to avoid overlap and missed areas
- Multi-zone mowing in one task
- 360° obstacle detection and avoidance
- App control for scheduling and remote management
All designed to reduce manual input and maximise efficiency
🔹 Ideal Applications
- Sports pitches & training facilities
- Private estates & parkland
- Grass airstrips & aviation areas
- Large commercial landscaping sites
🔹 Optional LM01 Linemarker Kit – Expand Your Capability
The RM21 can also be equipped with the LM01 Linemarker Kit, transforming it from a high-performance mower into a fully autonomous line marking solution.
Designed for sports grounds and managed turf areas, the LM01 allows you to accurately mark out pitches with the same precision and consistency as the mowing operation. Using the RM21’s RTK positioning and intelligent path planning, lines can be applied cleanly and repeatedly without the need for manual marking.
This is particularly valuable for facilities where presentation and accuracy are essential, such as football pitches, training grounds and multi-use sports surfaces. Once configured, the system can follow pre-set layouts, ensuring consistent results every time while significantly reducing labour requirements.
By combining mowing and line marking into one autonomous platform, the RM21 with LM01 kit helps streamline ground maintenance, improve efficiency and maintain a professional finish across your entire site.