Tackle Demanding Jobs

With Zero-Tail swing and Boom-Swing enabling operation in tight and confined spaces.


With engine start safety system, the engine can be started up only when the safety lever is set at locking position. If safety lever is set at locking position, the machine will not move preventing accidents caused by mis-operation.


When working with one-way hydraulic attachments, such as a breaker, the standard third-line hydraulic return system allows oil to flow directly back to the tank without running through the control valves. This contributes to less oil contamination, reduced back pressure, and greater oil flow efficiency.

U30 Unit

Technical Specs


Model Kubota D1703-M-E3-BH-11
Total displacement 1647cc
Rated output (SAE J1995 gross) 20.5kW (27.5 HP) / 2200rpm

Bucket capacity 2.7 gpm / 10.4 l/min
Std.bucket width: (with/without cutting blade) 3417.2 lbf / 1550 kgf
Machine weight (rubber/steel crawler) 1918 lbf / 870 kgf
Operating weight (including operator weight: 75kg) (rubber/steel crawler) 3105 / 3195 kg
Swing speed 8.8 rpm
Blade Width 1550 mm
Blade Height 343 mm
Blade Max. lift above ground/drop below ground 365 / 375 mm


Overall length 4530 mm
Overall height 2455 mm
Overall width 1550 mm
Min. ground clearance 290 mm



Track Type Rubber / Steel
Track Width 300mm

Crawler length 2100 mm
Tumbler distance 1665 mm
Travel speed (1st/2nd gear) 3.1 / 4.6 km/h
Max. climbing angle 30 deg


Max. digging height 4250 mm
Max. dumping height 2865 mm
Max. digging depth 2820 mm
Max. vertical wall digging depth 2290 mm
Max. digging radius at ground 4780 mm
Max. digging radius 4905 mm
Min. turning radius – without swing 2290 mm
Min. turning radius – with swing 1845 mm
Min. tail turning radius 790 mm
Transport length 4530 mm
Crawler length 2100 mm
Max. breakout force (bucket) 30.0 kN/3059 kgf

Hydraulic pump type Variable pump x 2
+ gear pump x 1
Swivel motor type Hydraulic piston motor
Travel motor type Hydraulic piston motor: 2F
Fuel tank capacity 46 l

Zero-Tail Swing

Kubota’s zero-tail swing always keeps the tail of the mini excavator within track-width when swivelling, enabling operation in tight and confined spaces.

Operational performance

The Kubota U30-6 combines superior power and outstanding versatility to tackle demanding jobs in a variety of  conditions. More powerful bucket breakout force results in the smooth, productive operation Kubota machines are known for.

Max. bucket breakout force: 30.0kN(3059kgf)
Max. digging depth: 2820mm
Max. digging radius: 4905mm
Max. digging height: 4250mm