The FJD H39 PRO is a GNSS-based 3D Dozer Control System that automatically adjusts blade position in real time, delivering centimetre-level grading accuracy on any terrain. Powered by an 8-core 2.2 GHz IP68 tablet with real-time 3D visual guidance, plus a masterless option for machines where mast installation isn't practical.
The FJD H39 PRO 3D Dozer Control System brings intelligent, automated blade control to bulldozers across all major brands. Using high-precision satellite positioning combined with multi-type sensor modules, the H39 PRO captures real-time blade position and attitude data and automatically adjusts the blade through the valve control module — delivering centimetre accuracy from the first pass and eliminating grade checkers, rework and guesswork.
The H39 PRO precisely controls the blade on every pass using the 3D design and real terrain. Operators can switch seamlessly between manual and auto modes, and one-tap blade lift handles turns, repositioning and obstacle avoidance without breaking the workflow.
Import design files directly into the terminal and work in Design Files, Depth or Elevation modes — with full gesture controls (move, zoom, select, 3D rotate) making on-terminal operation fast and intuitive.
The H39 PRO fits masterless machines without mast installation or on-site transport — giving the operator an unobstructed view, a larger working range for the blade, and faster site set-up.
The 10.1" LED touchscreen (8-core 2.2 GHz, 8 GB RAM + 128 GB ROM, IP68) displays the blade's exact position relative to the target surface with live cut/fill indicators — so progress and grade quality can be monitored straight from the cab.
The control terminal is IP68-rated; the attitude sensor is IP67 and rated from -40°C to +85°C; and the wiring harness is durable down to -40°C — engineered for mining, civil and infrastructure sites where conditions are tough and downtime is expensive.
Firmware updates are delivered over the air and remote diagnostic support is included — minimising downtime without an on-site technician visit.
Watch
Features
The H39 PRO controls the blade precisely on every pass using the 3D design and real terrain. Flexible switching between manual and auto modes, with one-tap blade lift for fast repositioning, turns and obstacle avoidance — enhanced efficiency without breaking the workflow.
Import design files into construction drawings and work in Design Files, Depth or Elevation modes. The 10.1" touchscreen supports full gesture controls — move, zoom, select and 3D rotate — making terminal operation fast and intuitive from the cab.
Three precision tools keep the blade on grade as conditions change. Elevation Offset runs operations off a height reference for accurate, consistent results. Blade Wear calibration compensates for tool wear so accuracy stays uncompromised. Hold Slope extends a specified slope across the designed work area with stable, continuous guidance.
The H39 PRO fits masterless machines without mast installation or on-site transport — giving the operator an unobstructed view of the blade, a larger operational range, and faster site setup. Ideal for mixed-fleet contractors where rapid redeployment matters.
The 10.1" LED touchscreen (8-core 2.2 GHz, 8 GB RAM + 128 GB ROM) is IP68-rated for in-cab dust and water protection. The attitude sensor is IP67 and operates from -40°C to +85°C, and the wiring harness is durable down to -40°C — engineered for mining, civil and infrastructure job sites where conditions are tough and downtime is expensive.
The H39 PRO receives over-the-air firmware updates automatically, keeping the system current without downtime. FJDynamics' 24/7 remote support means most issues can be diagnosed and resolved without an on-site technician visit.
In the box
Technical details
| Operation Accuracy | 30 mm |
|---|---|
| Heading Accuracy | 0.1° |
| Control Terminal Screen | 10.1" LED Touchscreen |
| Control Terminal Dimensions | 284 × 189 × 22.5 mm |
| Control Terminal Processor | 8-core 2.2 GHz |
| Control Terminal Memory | 8 GB RAM + 128 GB ROM |
| Control Terminal IP Rating | IP68 |
| Attitude Sensor IP Rating | IP67 |
| Attitude Sensor Max. Angular Velocity | ≤400°/s |
| Attitude Sensor Operating Temperature | -40°C to +85°C |
| Mast Option | Single-Mast or Masterless |
| GNSS Technology | High-precision satellite positioning |
| Remote Support | OTA firmware updates included |
Order 45707 Thanks for the option for review The system is great and well priced compared to TOPCON The in cab receiver needs a back light on the screen with the arrows as it is very hard to see when trimming to the millimetre and can’t be done quickly as you can’t see the arrows properly Has it got a light I haven’t found yet ? Also one of the little magnets pulled out of the magnet mount on The Bucket when I removed so not sure if it’s going to last Any info on this would be great Regards Ashley Ward Maximum Drainage
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SSteve2 weeks agoAs always very quick service
JJay Saunders3 months agoRedback lasers sent the product fast which saw me receive the product in no time. I also received a free upgrade to a lr730 which I was stoked about. The LR730 works a treat for getting heights set out precisely
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BBearing Logistics5 months agoGreat customer service and open dialogue and follow up. 100% deserved the five stars. Well done
FFranz Franz5 months agoCustomer service was above and beyond. Product has met and beaten expectations. They were sold out of the package deal I wanted but contacted me directly when stock came in to offer it without waiting for it to go online. Had the laser over two weeks now and it's light beam is brighter than my mates DeWalt and the receiver works at a longer distance. Another cool feature is that the batteries have a USB C port on them for charging with USB C cable instead of needing another charger. Was dubious about them being cheaper than others on the market but I honestly can't fault it. Carry box also feels strong and sturdy.
CChris Thynne6 months agoI have ordered from Redback many times and the free delivery is excellent and fast. Very customer focussed and great to deal with. Thanks again team.
