FJD FR4000 Robotic Lawn Mower + Free Delivery

Most lawns near the water are not flat, not tidy and not small, and a mower that needs a buried wire around every flower bed soon becomes a chore of its own. The FJD FR4000 Robotic Lawn Mower takes the opposite approach: it draws its boundary in software, locates itself with satellite corrections and uses a camera to deal with whatever it finds on the grass.

The product is available through this page, by quotation.

Background

The maker and its mower range

The FR4000 is made by FJDynamics, a company whose product pages group its machines by the ground they work on: residential robotic mowers, golf course robots, sports field robots, commercial cleaning robots and hard surface line marking robots, together with a digital platform. The mower range includes the FJD FV2000 Robotic Lawn Mower, the FJD Vela Robotic Lawn Mower and the FJD FRX Robotic Mower. You can compare them with the rest of the line in the Mower Robots category.

Where the FR4000 sits and what drives it

The FR4000 is built for large lawns and for sports fields, with a recommended mowing area of 4000 m² (1 acre). Its key technology is positioning. It works with RTK, a correction method that gives centimeter-level accuracy, and it replaces a physical perimeter cable with a virtual wire boundary. An RGB + stereo camera adds a second layer of awareness: it detects obstacles in real time, recognizes boundaries for precise edge trimming and mapping, and keeps the mower working in areas where the RTK signal is weak. The mower is controlled through the FJD Landscaping app, which is available for the usual mobile systems.

Technical Specifications

Specifications as published by the manufacturer; confirmed against the datasheet at quotation.

The manufacturer has not published the noise level, the box contents, the blade type or the maximum mowing time per day; they are confirmed at quotation.

How does the FJD FR4000 find its way without a buried wire?

The FR4000 uses a virtual wire boundary, so there is no cable to bury, repair or re-route when you redesign a garden. You define the working area in the app, and the mower holds to it using RTK positioning.

There are two ways to supply the RTK corrections. With radio RTK, the mower reaches centimeter-level accuracy over a signal coverage range of at least 1 km. With network RTK through NTRIP, you do not need an RTK reference station at all; the manufacturer recommends the FJD Trion™ N10 CORS for this. The choice depends on your site: a single property with its own base suits one approach, while a network service suits an operator who would rather not install extra hardware.

Satellite accuracy is only part of the story. Trees, buildings and walls can weaken a positioning signal, which is why the camera matters. The RGB + stereo camera recognizes boundaries for edge trimming and mapping, and it keeps the mower going even in weak-RTK areas, so a shaded corner does not have to stop the job.

How does the FJD FR4000 cope with slopes, rain and theft?

Slopes first. The FR4000 has a maximum climbing ability of 33° (65%), and a maximum mowing slope of 25° (47%). The two figures are different things: the first is how steep an incline the mower can travel, the second is how steep it can be while it is cutting. Read them separately when you plan a hillside lawn.

Rain is handled by the mower itself. It pauses automatically when rain starts and returns to work when the weather clears, and it carries IPX5 water protection. For a region with sudden tropical showers, that behavior saves a lot of supervision.

Security is built in as well. A PIN lock, GPS tracking, a geofence alarm and a lift alarm are all part of the anti-theft package, which matters for a machine that works unattended on open ground. Connectivity comes from 4G and wireless links, and software updates arrive as a one-click remote OTA update through the app, free for life.

Who is the FJD FR4000 for?

The FR4000 suits owners of large private lawns who want to stop spending weekends behind a mower, and the 4000 m² (1 acre) recommended area gives a clear idea of the scale it is made for. It also suits groundskeepers of sports fields, schools, resorts and similar facilities, where a repeatable, mapped cut and a short list of tasks for staff are worth more than raw speed.

Sloped properties are another good match, given the climbing and mowing slope figures above. If your site is a larger professional deployment, such as a golf course or a wider commercial operation, take a look at the Commercial Robots category as well. For a different balance of features, compare the FJD FV2000 Robotic Lawn Mower or the FJD Vela Robotic Lawn Mower, and ask us which one fits your lawn.

What is the FJD FR4000 used for?

1. Large residential lawns: keeps an acre of grass cut without a perimeter cable or daily attention.
2. Sports fields: gives pitches an even, repeatable cut, with precise edge trimming along the boundary.
3. Sloped grounds: works on embankments and hillside gardens within its climbing and mowing slope limits.
4. Facility grounds: maintains the lawns of schools, hotels, resorts and offices on a schedule set in the app.
5. Areas with obstacles: the camera detects obstacles in real time, so trees, furniture and play equipment do not end the run.
6. Unattended mowing: rain detection and the anti-theft package let the mower work with little supervision.

Pricing and Availability

The FJD FR4000 Robotic Lawn Mower is sold by quotation, so there is no price to read off the page. Send us your site details and we will respond with a quotation. Delivery, customs and support are arranged together with the quotation, so you deal with one contact from the first question to the first cut. The FJD FR4000 Robotic Lawn Mower is available on this page.

Frequently Asked Questions

How large a lawn can the FJD FR4000 handle?

The recommended mowing area is 4000 m² (1 acre). The cutting width is 260 mm (10.2 in.).

Do I need to bury a boundary wire?

No. The boundary type is a virtual wire, set in the app and held with RTK positioning.

Do I need my own RTK base station?

Not necessarily. Radio RTK gives centimeter-level accuracy with a signal coverage range of at least 1 km, and network RTK through NTRIP removes the need for a reference station. The FJD Trion™ N10 CORS is recommended.

How long does the battery last?

The 190 Wh battery runs for up to 180 minutes per charge, and charging takes 120 minutes.

What happens when it rains?

The mower pauses automatically in rain and returns when it is clear. It has IPX5 water protection.

How is the mower protected against theft?

It has a PIN lock, GPS tracking, a geofence alarm and a lift alarm. Updates are delivered by one-click remote OTA through the FJD Landscaping app, free for life.

Where can I buy the FJD FR4000 Robotic Lawn Mower and what does it cost?

You can buy it through this page, by quotation. The cost depends on your project, so send us your details and we will respond with a quotation that includes delivery, customs and support arrangements.

Summary

A lawn with slopes, shade and obstacles does not have to mean a buried wire and a Saturday lost to mowing. The FJD FR4000 draws its boundary in software, positions itself with RTK to the centimeter, sees obstacles with an RGB + stereo camera, and climbs 33° (65%) inclines. It also pauses itself in the rain and guards itself with a PIN lock, GPS tracking and alarms. It covers a recommended 4000 m² (1 acre) with a 260 mm (10.2 in.) cutting width. If that fits your grounds, this page is the starting point.