The R330 is the first machine in the series where force matters more than size: 15.6 kN max. digging force, 4,143 mm reach and 2,392 mm depth. It digs foundations and basements, opens long trenches for water mains and sewers, prepares pads before concrete pouring, cleans out and reshapes ditches, and loads soil or rubble from a dump height of 2,377 mm.
What sets it apart from the lighter models is the engine–hydraulics package. The Kubota D1105 diesel engine, three cylinders, 1.123 litres, water-cooled, delivers 18.2 kW at 3,000 rpm, and the Parker gear pump sends 36 L/min to an 8-section control valve with hydraulic pilot control, at 17 MPa working pressure and 18 MPa maximum. The boom swings up to 111°, so it digs right up against a wall or a fence without moving the machine.
It suits construction companies and utility crews who dig for days on end, not occasionally. Operating weight is 2,017 kg, ground pressure 31.43 kPa, and transport dimensions 3,057 × 1,300 × 2,038 mm — figures that matter when choosing a trailer and getting onto site, because the 2,038 mm height keeps it under obstacles that stop a taller machine. Rated fuel consumption stays low for this class: 1.3–1.5 litres per hour.
The 400 mm bucket, with a capacity of 0.036 m³, and the 1,300 mm dozer blade come as standard — the blade is exactly the width of the machine, so it levels everything the machine drives over in a single pass. The boom is 1,870 mm, the arm 925 mm, and the counterweight ground clearance is 487 mm, useful on uneven ground. An engine oil change takes 4.2 litres.
Standard equipment
- Kubota D1105 diesel engine, 3 cylinders, 1.123 L, water-cooled, 18.2 kW at 3,000 rpm
- Max. digging force 15.6 kN, reach 4,143 mm, depth 2,392 mm
- 400 mm bucket, 0.036 m³ capacity
- 1,300 mm dozer blade, matching the transport width
- 8-section control valve with hydraulic pilot control, 36 L/min Parker gear pump
- Boom swing up to 111°, for digging alongside walls
- Transport dimensions 3,057 × 1,300 × 2,038 mm, operating weight 2,017 kg
