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Cat 306 CR vs. Komatsu PC78UU-6 Mini excavators Comparison

Compare available technical data for Excavators. Find the right details to make your decision easier.

Comparison

Highlight differences

Cat 306 Mini excavators

Komatsu PC78 Mini excavators

General
Engine model Cat C1.8
Engine model S4D95LE-3
Operating weight 1,790 kg
Operating weight 7,700 kg
Max digging depth 2,300 mm
Max digging depth -
Max dump height 2,880 mm
Max dump height 5,290 mm
Max digging reach 3,620 mm
Max digging reach -
Boom length 2.3 m
Boom length 3.27 m
Bucket width 400 mm
Bucket width 630 mm
Bucket capacity 0.04 cu m
Bucket capacity 0.28 cu m
Displacement 1,800 cu cm
Displacement 3,261 cu cm
Max speed forward 3.2 kph
Max speed forward 4.5 kph
Bucket digging force 12.7 kN
Bucket digging force 61.3 kN
Gradeability -
Gradeability 35 ยบ
Max digging depth -
Max digging depth 4,230 mm
Max digging reach -
Max digging reach 6,400 mm
Years 2020-2025
Years 2000-2014
Market Average AED 450,000
Market Average AED 100,000
Price AED 280,000
Price AED 20,000
Engine
Gross power 18.12 kw
Gross power -
Net power -
Net power 40.2 kw
Service refill capacities
Fuel cap 28 liter
Fuel cap 125 liter
Hydraulic fluid cap 36 liter
Hydraulic fluid cap 120 liter
Operational specifications
Arm crowding force 9.8 kN
Arm crowding force 40.4 kN
Swing speed -
Swing speed 10 rpm
Undercarriage
Drawbar Pull 14.2 kN
Drawbar Pull 65.1 kN
Track width 10 cm
Track width 45 cm
Track length 1.4 m
Track length 2.9 m
Hydraulic system
Pump flow cap 31.5 lpm
Pump flow cap 160 lpm
Relief valve pressure 219.94 bar
Relief valve pressure 270 bar

Performance

Looking at performance technical specs and key features the Cat 306 CR Mini excavators excels in terms of engine power at and operating weight 1790 compared to other models like the Komatsu PC78UU-6 Mini excavators.

User rating

Owners operators and fleet managers recommend the Cat 306 CR Mini excavators for its high reliability and endurance in diverse applications. The same can be said about the Komatsu PC78UU-6 Mini excavators.

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build datetime: 7/6/2026, 12:00:29 PM