FJD RM21 · Commercial Robotic Mower

The ultimate all-in-one turfcare solution

An autonomous mower built for golf courses: precise, protected, and fully self-running. Swap kits to take on the recurring jobs that drain your crew, all from one machine.

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Protection meets innovation

Aware, protected, precise

Sensors and safety systems built for a working golf course, so the machine runs hard without running into trouble.

360° Real-time Object Detection

LiDAR plus front and rear bumpers give the RM21 full 360° awareness: it detects surrounding objects, eliminates blind spots, and avoids obstacles in real time, day or night.

Comprehensive Protection

IPX4 weather resistance, sturdy bumpers, and continuous small-animal detection keep both the machine and its surroundings safe through dew, light rain, and overnight runs.

Easier & Smarter Mowing

Manage the mower and its schedule in real time from the app: check status, build maps, and adjust jobs even when you’re out of town.

Reliable performance

Runs all day, on its own

Set it and trust it. The RM21 handles coverage, slopes, and charging without babysitting.

RM21 accurate and efficient mowing with RTK

Accurate & Efficient Mowing

RTK + LiDAR fusion holds a sub-inch-accurate line, even under tree canopy or in weak-signal areas, covering up to 23 acres every three days with the same clean stripe each pass.

No More Worry About Slopes

Climbs and works grades up to 20°, staying surefooted across roughs, banks, and bunker faces, then auto-docks and recharges when the battery runs low.

Application scenarios

Where the RM21 goes to work

One machine, many jobs across the property: from the rough to the range to the back nine.

Golf course fairway and roughs — Golf courses & roughs

Large open turf and driving range — Driving ranges & open turf

RM21 navigating under tree canopy — Complex terrain & under trees

What sets it apart

Why the RM21 stands alone

Built to out-see, out-last, and out-work everything else on the market.

Best combined technology
RTK, LiDAR, and camera in one system, refined over three generations. Sees obstacles at range, in any light, day and night.
Genuinely unattended
Cuts for hours, then self-docks and recharges. No operator, day or night.
Three machines in one
Quick-release kits add a ball picker, line marker, or grass collector in minutes.
A self-coordinating fleet
Units cover for each other automatically. Scale coverage without adding staff.
Conventional blades
Tough, cheap to swap, quick to service. Less downtime, lower upkeep.
Pays for itself fast
Its tech, versatility, and size deliver one of the best ROIs in robotic mowing.

Beyond mowing, endless possibilities

One platform, swappable kits

The RM21 is a platform, not a single-purpose mower. Add a kit to take on another recurring job, with no second machine.

Range

BP01 Ball Picker

Autonomous driving-range ball collection with auto-return when the basket is full.

FJD RM21 with the line marker painting a line on a sports field

Layouts

LM01 Line Marker

Precision line marking for fields and layouts, cutting paint usage and labor.

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FJD RM21 with the grass collector hopper on a golf course

Cleanup

GC01 Grass Collector

Discharge-blade grass collection for a cleaner finish on detail areas.

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Quick specs

The numbers behind the machine

Conservative real-world coverage plus full operating specs. Capacity varies with grass type, soil, cutting height, and slope.

acres max per 3 days

3.2

acres max per charge

5 hrs

average working time

Dimensions (L×W×H)	52" × 34" × 40"
Weight	375 lb
Number of blades	1
Cutting width	25"
Cutting height	0.8" – 5"
Max working area / charge	3.2 acres
Max working area / 3 days	23 acres
Battery capacity	4 kWh
Ground speed	Up to 3.7 mph
Maximum gradeability	≤ 20°
Standard charging time	5 hours
Fast charging time	2.5 hours
IP rating	IPX4

Built for real course conditions

Under-tree RTK + LiDAR navigation
360° obstacle detection
Front and rear bumpers
Up to 20° slope capability
Auto docking, self-charging
Multi-zone management
Remote app monitoring
Animal-friendly detection
GreenMaster software integration

"Will it work here, on my property, without constant intervention? The answer is yes."

The ultimate all-in-one turfcare solution

Aware, protected, precise

360° Real-time Object Detection

Comprehensive Protection

Easier & Smarter Mowing

Runs all day, on its own

Accurate & Efficient Mowing

No More Worry About Slopes

Where the RM21 goes to work

Why the RM21 stands alone

Best combined technology

Genuinely unattended

Three machines in one

A self-coordinating fleet

Conventional blades

Pays for itself fast

One platform, swappable kits

BP01 Ball Picker

LM01 Line Marker

GC01 Grass Collector

The numbers behind the machine

See the RM21 on your course