The Kubota U15-3 is a 1.6-ton (approx. 3,700 lb) zero-tail swing mini excavator powered by a 13 HP Kubota D782 diesel engine. Designed for tight spaces, it features a variable track width (extendable from 990mm to 1,240mm), a max digging depth of 7.6 ft (2.31 m), and a maximum reach of 12.6 ft (3.9 m). 
Key Technical Specifications
Max Dumping Height: 8.0 ft (2,440 mm)
Max Reach at Ground Level: 12.6 ft (3,900 mm)
Width: Adjustable from 3.25 ft (990 mm) to 4.06 ft (1,240 mm)
Transport Length: 11.7 ft (3.57 m)
Fuel Tank Capacity: 4.7 gal (18 L) 
Engine: Kubota D782-E2-BH7, 3-cylinder diesel, ~13 HP
Operating Weight: ~3,704 lbs (1,680 kg)
Max Digging Depth: 7.58 ft (2.31 m)
Features and Performance
Zero-Tail Swing: The rear remains within the track width, enabling safe, "worry-free" operation in confined spaces.
Variable Tracks: Hydraulic track gauge can be adjusted for stability or to fit through narrow 1-meter gaps.
Hydraulics: Uses a "3-pump system" to operate the boom, arm, and swivel simultaneously.
Performance: Max bucket breakout force of 1,545 kgf (3,406 lbs).