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Cat 303.5D CR vs. Cat 306 CR Mini excavators Comparison

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

Comparison

Highlight differences

Cat 303 Mini excavators

303.5D CR

Cat 306 Mini excavators

306 CR
General
Engine model Cat C1.1
Engine model Cat C1.8
Operating weight 3,538 kg
Operating weight 1,790 kg
Max dump height 3.8 m
Max dump height 2,880 mm
Boom length 2.5 m
Boom length 2.3 m
Bucket width 450 mm
Bucket width 400 mm
Bucket capacity 0.07 m3
Bucket capacity 0.04 cu m
Max speed forward 4.7 kph
Max speed forward 3.2 kph
Max digging depth 3,139.44 mm
Max digging depth 2,300 mm
Max digging reach 5,334 mm
Max digging reach 3,620 mm
Years 2020-2025
Years 2020-2025
Market Average AED 129,000
Market Average AED 450,000
Price AED 105,000
Price AED 280,000
Engine
Displacement 1,100 cm3
Displacement 1,800 cu cm
Gross power 22.37 kw
Gross power 18.12 kw
Operational specifications
Blade width 1 m
Blade width -
Arm crowding force 18.9 kN
Arm crowding force 9.8 kN
Service refill capacities
Fuel cap -
Fuel cap 28 liter
Hydraulic fluid cap -
Hydraulic fluid cap 36 liter
Attachments
Bucket digging force -
Bucket digging force 12.7 kN
Undercarriage
Drawbar Pull -
Drawbar Pull 14.2 kN
Track width -
Track width 10 cm
Track length -
Track length 1.4 m
Hydraulic system
Pump flow cap -
Pump flow cap 31.5 lpm
Relief valve pressure -
Relief valve pressure 219.94 bar

Performance

Looking at performance technical specs and key features the Cat 303.5D CR Mini excavators excels in terms of engine power at and operating weight compared to other models like the Cat 306 CR Mini excavators.

User rating

Owners operators and fleet managers recommend the Cat 303.5D CR Mini excavators for its high reliability and endurance in diverse applications. The same can be said about the Cat 306 CR Mini excavators.

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build datetime: 11/13/2025, 2:30:20 PM