The Komatsu PC28UU-1 is a mini excavator listed for 1984-1991. Key specifications include a listed machine weight of about 6,570 lb, approximately 22.4 hp and a listed digging depth of about 8.86 ft.
Key specifications
1984-1991Model years
6,570 lbMachine weight
22.4 hpEngine power
0.9 ft³Bucket
4.9 ftTransport width
8.86 ftDigging depth
13.55 ftDigging reach
Komatsu PC28UU-1 size and digging visual
This diagram is generated from the listed transport dimensions for this specific mini excavator.
Top-view transport footprint
Length 12.43 ft • Width 4.9 ft
Side-view transport envelope
Length 12.43 ft • Height 7.81 ft
Listed digging envelopedigging depth 8.86 ft • digging reach 13.55 ft
These are the published specification values for this model and are not a jobsite clearance or excavation safety calculation.
How the Komatsu PC28UU-1 compares
These figures compare this machine with other Komatsu mini excavators in this specifications database. They are descriptive database comparisons, not performance ratings.
Machine weight6,570 lb
Low 1,808 lbAverage 6,201 lbHigh 11,640 lb
About 6% heavier than the Komatsu mini excavators database average. Around the 58th percentile within this Komatsu mini excavators dataset.
Engine power22.4 hp
Low 8.7 hpAverage 23.6 hpHigh 39.5 hp
Very close to the Komatsu mini excavators database average. Around the 53rd percentile within this Komatsu mini excavators dataset.
Bucket capacity0.9 ft³
Low 0.6 ft³Average 3.4 ft³High 7.7 ft³
About 74% lower than the Komatsu mini excavators database average. Around the 9th percentile within this Komatsu mini excavators dataset.
Transport width4.9 ft
Low 2.62 ftAverage 5.19 ftHigh 8.53 ft
About 5% narrower than the Komatsu mini excavators database average. Around the 46th percentile within this Komatsu mini excavators dataset.
Max. digging depth8.86 ft
Low 5.07 ftAverage 9.24 ftHigh 13.52 ft
Very close to the Komatsu mini excavators database average. Around the 48th percentile within this Komatsu mini excavators dataset.
This model Komatsu mini excavators average
Useful conversions and calculated specifications
Machine weight
6,570 lb (2,980 kg)
Engine power
22.4 hp (16.7 kW)
Bucket capacity
0.9 ft³ (0.03 m³)
Transport length
12.43 ft (3.79 m)
Transport width
4.9 ft (1.5 m)
Transport height
7.81 ft (2.38 m)
Max. digging depth
8.86 ft (2.7 m)
Max. digging reach
13.55 ft (4.13 m)
Engine displacement
75.2 cu in (1.232 L)
Power-to-weight
3.4 hp/1,000 lb (7.5 hp/tonne)
Komatsu PC28UU-1 FAQ
What years is the Komatsu PC28UU-1 listed for?
The available source specifications list the Komatsu PC28UU-1 for 1984-1991.
How much does a Komatsu PC28UU-1 weigh?
The listed machine weight is about 6,570 lb (2,980 kg).
How much horsepower does the Komatsu PC28UU-1 have?
The engine is listed at approximately 22.4 hp (16.7 kW).
How deep can the Komatsu PC28UU-1 dig?
The listed maximum digging depth is about 8.86 ft (2.7 m).
What is the digging reach of the Komatsu PC28UU-1?
The listed digging reach is about 13.55 ft (4.13 m).
How wide is the Komatsu PC28UU-1?
The listed transport width is about 4.9 ft (1.5 m). Bucket width can differ by attachment.
Model information
Listed years
1984-1991
Machine type
Mini Excavator
Capacity and performance
Weight
6,570 lb (2,980 kg)
Bucket capacity
0.9 ft³ (0.03 m³)
Bucket width
10.6 in (0.27 m)
Tear-out force
19.9 kN
Digging dimensions
Max. digging depth
8.86 ft (2.7 m)
Dredging depth
8.86 ft (2.7 m)
Max. digging reach
13.55 ft (4.13 m)
Max. digging height
4800 mm (15'9"")"
Max. dumping height
3450 mm (11'4"")"
Max. reach horizontal
13.55 ft (4.13 m)
Dimensions and undercarriage
Transport length
12.43 ft (3.79 m)
Transport width
4.9 ft (1.5 m)
Transport height
7.81 ft (2.38 m)
Track width
11.8 in (300 mm)
Tail swing radius
790 mm (2'7"")"
Engine specifications
Engine type
3D78-1D
Engine power
22.4 hp (16.7 kW)
Displacement
75.2 cu in (1.232 L)
RPM at max torque
2500 rpm
Number of cylinders
3
Cylinder bore × stroke
3.07 × 3.39 in (78 × 86 mm)
Equipment
Model series
PC
Rubber track
Yes
Blade
No
Air conditioning
No
Disclaimer: Specifications can vary by market, production date, configuration, tracks, boom/stick, bucket and optional equipment. Historical and scraped data can also contain errors. Comparison figures on this page are calculated only from Komatsu mini excavators in this dataset. The size and digging diagram visualizes listed specifications and is not a transport-clearance, excavation-safety or operating-limit certification. For purchase, transport, service or safety decisions, verify critical specifications with official Komatsu documentation. Visit the official Komatsu excavator website.
