Commercial turf care

RM21 robotic mower

The RM21 robotic mower from FJDynamics is a commercial-grade autonomous mower with a 25” cut-width and a single steel blade. It can operate up to five hours per charge and, when paired with the GC01 Grass Collector or LM01 Line Marking Kit, handles cutting, cleaning and line marking in one go.

 

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FJDynamics

  • Time-saving coverage

    Frees staff from long hours of field maintenance

  • Precision mapping

    Avoids obstacles and protects turf from damage

  • All-in-one control

    Manage mowing, collection and marking from an app

Tech-driven Lawn Care

The Ultimate All-in-One Turfcare Solution

The best turf shines in the real season. That’s the motivation driving the RM21 robotic mower to redefine turf caring for sports fields or sod farms

  • Accurate and efficient

  • One-click multi-field managment

  • Smart route planning

  • Complex terrain handling

  • 360° obstacle detection

  • Comprehensive protection

  • Accurate and efficient

  • One-click multi-field managment

  • Smart route planning

  • Complex terrain handling

  • 360° obstacle detection

  • Comprehensive protection

  • Accurate and efficient

  • One-click multi-field managment

  • Smart route planning

  • Complex terrain handling

  • 360° obstacle detection

  • Comprehensive protection

  • Accurate and efficient

  • One-click multi-field managment

  • Smart route planning

  • Complex terrain handling

  • 360° obstacle detection

  • Comprehensive protection

Getting started with the RM21 Robotic Mower

  • Step 1

    Register your account and connect your mower

    1

  • Step 2

    Mark your mowing zones & obstacles

    2

  • Step 3

    Set your task preferences

    3

  • Step 4

    Prepare your mowing schedule on the FJDynamics app

    4

  • Step 5

    Start your mowing task

    5

Interested in learning more about specifications and features?

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Upgrade to smarter field care

Simplify field preparation with the RM21. Fully autonomous, precise, and versatile, it’s the smarter way to cut, clean and mark your fields with minimal effort.
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Unlock commercial-grade turf care

RM21 Robotic Mower specifications

Max working area (full charge)
3.2 acres / 13,000㎡ ( 4kWh)
Max working area (3 days)
23 acres / 93,600 ㎡
Average working time
5h ( 4kWh )
Ground speed
0 – 3.7mph | 0 – 6 km/h
Maximum gradeability
≤ 20°
Weight
170kg
Dimensions
L1330 * W853 * H980 mm
Cutting height
1.18''–5'' ( 30–127 mm )
Number of blades
1
Charging mode
Manual (only)
Battery capacity
4kWh
Standard charging time
5h
Fast charging time
2.5h
360° real-time object detection
Collision bumper
25in cutting width
20° climbing ability
23 acre max operation area
Rain monitoring
Built-in industrial RTK & LiDAR

Got questions?

Frequently asked questions about the RM21 Robotic Mower, answered.

The RM21 performs smart path planning, supports multi-field mowing in a single operation and automatically returns to its charging station when the battery is low. For operation in areas of overhead coverage, the RM21 features a dual GNSS + LiDAR operation mode which allows it to operate smoothly with interruptions to the overhead GNSS signal.

The RM21 combines RTK GNSS for centimetre-level positioning and LiDAR to create detailed 3D terrain maps, making it ideal for navigating complex environments – even under trees or around obstacles.

The RM21 includes 360° real-time object detection via LiDAR, collision bumpers, lift protection and rain sensors to ensure safe and flawless operation.

Upgrade to smarter field care

Enquire about the RM21 Robotic Mower today