FSI D30 Stump Grinder

Diesel-powered stump grinding with narrow-access practicality and serious professional capability.

Engine & drive

The FSI D30 uses a Kubota 1305 water-cooled diesel engine rated at 25 hp / 18.5 kW. Because diesel torque arrives low in the rev range, it supports steady grinding performance while also keeping fuel use sensible on longer jobs. The machine uses hydraulic wheel drive, and it also includes a mechanical differential lock to improve mobility and traction on mixed ground.

FSI also fits its serviceable power-clutch with integrated brake. As a result, cutter wheel engagement stays strong and controlled, while braking on disengagement adds another layer of operator safety. The V-belt cutter wheel drive also helps deliver efficient power transfer.

Cutting system

The FSI D30 uses a 467 mm cutter wheel with the FSI 25 tooth system and 8 teeth. It offers a hydraulic sweep system, and that gives the operator controlled side-to-side stump removal without overcomplicating the machine. FSI quotes a maximum cutting depth per sweep of 3.7 cm on the UK product page, while the wider FSI material highlights up to 5.2 cm per sweep for the D30 family.

The working area is strong for this size of machine. It reaches 35 cm below ground level, and it delivers a sweep of 152 cm. Consequently, the FSI D30 suits contractors who need professional capacity without stepping up to a larger tracked unit.

Frame / chassis / build

The FSI D30 is built as a self-propelled grinder for regular professional use. It measures 2730 mm long, 800 mm wide, and 1220 mm high, while overall weight is listed at 810 kg. Because the twin wheels remove easily, the machine can stay at just 80 cm wide for narrow access through tighter gateways and restricted work areas.

FSI also includes multiple accessible lashing and lifting points, an integrated toolbox, and LED work lighting. In addition, built-in hydraulic motor brakes and a counterbalance valve help prevent rollback during operation.

Comfort & controls

The swing-out operator panel gives full control of travel and stump grinding functions. Because the panel swings out, the operator gets a clearer view of the cutting area while keeping the main controls close at hand. The safety bar also disengages the cutter wheel when released, so everyday operation stays safer and more controlled.

An optional FSI power-sweep system is available as well. Therefore, operators who want smoother sweeping performance and reduced drivetrain stress can spec the machine to suit a heavier workload.

Why choose FSI D30?

Choose the FSI D30 if you want a diesel stump grinder that combines professional output with narrow-access practicality. While larger tracked machines suit extreme terrain, this model keeps transport, access, and day-to-day operation simpler. At the same time, its diesel engine, hydraulic sweep system, and diff lock give it the capability needed for regular commercial stump removal.

FSI D30 – Key Specifications

• Kubota 1305 diesel engine

• 25 hp / 18.5 kW

• Water-cooled engine

• 2WD hydraulic wheel drive

• Mechanical differential lock

• Automatic brake

• FSI power-clutch with integrated brake

• V-belt cutter wheel drive

• 467 mm cutter wheel

• FSI 25 tooth system

• 8 teeth

• Hydraulic sweep system

• 35 cm below-ground grinding depth

• 152 cm sweep

• Width: 800 mm

• Weight: 810 kg

• Fuel tank: 35 litres

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