The R350 is the largest machine in the series and performs accordingly: 22.5 kN max. digging force, a working reach of 5,007 mm and a depth of 2,927 mm. With it you dig foundations for houses, basements and pools, lay sewerage at the design depth, open long trench runs from a single position and load a tipper truck from a dump height of 2,932 mm.
The technical difference from the rest of the group is the engine: a Kubota V1505 four-cylinder, 1.5-litre diesel, water-cooled, at 2,300 rpm — the only four-cylinder engine in the series, so smoother running and steadier pulling under load. The hydraulics follow suit: a piston pump with a max. flow of 64.4 L/min, an 8-section hydraulically operated control valve, 18 MPa working pressure and 20 MPa maximum — enough flow for hydraulic attachments too, not just the bucket.
This is the machine for firms that work continuously and have the means to move it: 2,578 kg operating weight and transport dimensions of 3,503 × 1,350 × 2,357 mm. Its ground pressure, 36.4 kPa, is the highest in the series — on freshly laid lawn and soft ground a lighter model from the same series is the better choice; the R350 is for building sites, access roads and ground that can bear a machine of over 2.5 tonnes. Rated fuel consumption is 1.3–1.5 litres per hour.
It comes as standard with a 400 mm bucket with a capacity of 0.08 m³, and a 1,350 mm dozer blade, as wide as the machine. The boom is 2,220 mm, the arm 1,620 mm, and boom swing goes up to 102°, for digging alongside buildings. The cab offers all-round visibility, and air conditioning is listed by the manufacturer as optional equipment, not as standard.
Standard equipment
- Kubota V1505 diesel engine, 4 cylinders, 1.5 L, water-cooled, 2,300 rpm
- Max. digging force 22.5 kN, reach 5,007 mm, depth 2,927 mm
- 400 mm bucket, capacity 0.08 m³
- Piston pump, max. flow 64.4 L/min, 18 MPa working pressure (20 MPa maximum)
- 1,350 mm dozer blade, as wide as the transport width
- Boom swing up to 102°, 2,220 mm boom and 1,620 mm arm
- Cab with all-round visibility; air conditioning offered as an option
