Cat
Cat 303 Mini excavators
Cat 303 Mini excavators tech specs
Video[1]
Interior [2]
Exterior [4]
Attachments [2]
2020-2025
3,018 mm Max digging depth
3,170 mm Max dump height
5,273 mm Max digging reach
19 kw Gross power
27 kN Bucket digging force
3,357 kg Operating weight
The Cat 303 CR packs compact footprint and full Tier 4 power into a 3.55 t (7,817 lb) package. It turns tight spaces into productive zones with zero-tail-swing agility and solid kit.
Zero-tail swing, small footprint for tight-access sites
17.6 kW (23.6 hp) C1.1 Turbo power staying Tier 4 Final
Easy ground-level servicing cuts downtime
Auto-idle, two-speed travel, and stick-steer control
Cat 303 technical specifications
Highlight differences
Blade height
Blade height 40.64 cm
Blade height -
Blade height -
Blade height -
Blade height -
Blade height 33.02 cm
Ground clearance
Ground clearance 33.53 cm
Ground clearance -
Ground clearance 36.58 cm
Ground clearance -
Ground clearance -
Ground clearance -
Height - top of cab
Height - top of cab 2.5 m
Height - top of cab -
Height - top of cab 2.5 m
Height - top of cab -
Height - top of cab -
Height - top of cab -
Overall Length
Overall Length 4.69 m
Overall Length -
Overall Length 4.94 m
Overall Length -
Overall Length -
Overall Length -
Turning radius
Turning radius 0.91 m
Turning radius -
Turning radius 0.98 m
Turning radius -
Turning radius -
Turning radius -
Width over tracks
Width over tracks 1.55 m
Width over tracks -
Width over tracks 1.8 m
Width over tracks -
Width over tracks -
Width over tracks -
Years
Years 2020-2025
Years 2020-2025
Years 2020-2025
Years 2020-2025
Years 2020-2025
Years 2020-2025
Market Average
Market Average AED 129,000
Market Average AED 129,000
Market Average AED 129,000
Market Average AED 129,000
Market Average AED 129,000
Market Average AED 129,000
Price
Price AED 105,000
Price AED 105,000
Price AED 105,000
Price AED 105,000
Price AED 105,000
Price AED 105,000
Blade width
Blade width 155 cm
Blade width -
Blade width -
Blade width -
Blade width -
Blade width 179 cm
Arm crowding force
Arm crowding force 16.99 kN
Arm crowding force 19.6 kN
Arm crowding force -
Arm crowding force -
Arm crowding force -
Arm crowding force 18.89 kN
Max digging depth
Max digging depth 3,017.52 mm
Max digging depth 3,050 mm
Max digging depth 3,169.92 mm
Max digging depth 3,139.44 mm
Max digging depth 3,139.44 mm
Max digging depth 4,826 mm
Max dump height
Max dump height 3,169.92 mm
Max dump height 3,950 mm
Max dump height 3,596.64 mm
Max dump height -
Max dump height -
Max dump height -
Max digging reach
Max digging reach 5,273.04 mm
Max digging reach 5,180 mm
Max digging reach 5,242.56 mm
Max digging reach 5,334 mm
Max digging reach 5,425.44 mm
Max digging reach -
Operating weight
Operating weight 3,357 kg
Operating weight 3,500 kg
Operating weight 3,719 kg
Operating weight 3,538 kg
Operating weight 3,691 kg
Operating weight 3,723 kg
Max speed forward
Max speed forward 4.83 kph
Max speed forward 4.8 kph
Max speed forward 4.51 kph
Max speed forward -
Max speed forward -
Max speed forward 4.67 kph
Engine model
Engine model -
Engine model Cat C1.1
Engine model -
Engine model -
Engine model -
Engine model -
Boom length
Boom length -
Boom length 3 m
Boom length -
Boom length -
Boom length -
Boom length -
Bucket width
Bucket width -
Bucket width 450 mm
Bucket width -
Bucket width -
Bucket width -
Bucket width -
Bucket capacity
Bucket capacity -
Bucket capacity 0.07 cu m
Bucket capacity -
Bucket capacity -
Bucket capacity -
Bucket capacity -
Track gauge
Track gauge 1.25 m
Track gauge -
Track gauge 1.49 m
Track gauge -
Track gauge -
Track gauge -
Track width
Track width 30.48 cm
Track width 18 cm
Track width 30.48 cm
Track width -
Track width -
Track width -
Drawbar Pull
Drawbar Pull -
Drawbar Pull 28.4 kN
Drawbar Pull -
Drawbar Pull -
Drawbar Pull -
Drawbar Pull 16.99 kN
Track length
Track length -
Track length 2.2 m
Track length 2.23 m
Track length -
Track length -
Track length -
Bore
Bore 7.87 cm
Bore -
Bore -
Bore -
Bore -
Bore 8.64 cm
Displacement
Displacement 1,319.16 cu cm
Displacement 1,100 cu cm
Displacement 1,877.96 cu cm
Displacement -
Displacement -
Displacement 1,704.26 cu cm
Gross power
Gross power 19.46 kw
Gross power 18.49 kw
Gross power 30.57 kw
Gross power 22.37 kw
Gross power 23.56 kw
Gross power 18.49 kw
Stroke
Stroke 9.4 cm
Stroke -
Stroke -
Stroke -
Stroke -
Stroke 9.14 cm
Pump flow cap
Pump flow cap 49.77 lpm
Pump flow cap 52 lpm
Pump flow cap 87.81 lpm
Pump flow cap -
Pump flow cap -
Pump flow cap 70.02 lpm
Relief valve pressure
Relief valve pressure -
Relief valve pressure 250 bar
Relief valve pressure -
Relief valve pressure -
Relief valve pressure -
Relief valve pressure -
Bucket digging force
Bucket digging force 26.67 kN
Bucket digging force 25.5 kN
Bucket digging force -
Bucket digging force -
Bucket digging force -
Bucket digging force 32.98 kN
Cooling fluid cap
Cooling fluid cap 3.79 liter
Cooling fluid cap -
Cooling fluid cap 6.06 liter
Cooling fluid cap -
Cooling fluid cap -
Cooling fluid cap 5.68 liter
Fuel cap
Fuel cap 41.26 liter
Fuel cap 48 liter
Fuel cap 51.1 liter
Fuel cap -
Fuel cap -
Fuel cap 46.18 liter
Hydraulic fluid cap
Hydraulic fluid cap 68.89 liter
Hydraulic fluid cap 55 liter
Hydraulic fluid cap 65.1 liter
Hydraulic fluid cap -
Hydraulic fluid cap -
Hydraulic fluid cap 65.1 liter
Engine oil cap
Engine oil cap 5.68 liter
Engine oil cap -
Engine oil cap 6.06 liter
Engine oil cap -
Engine oil cap -
Engine oil cap 6.81 liter
Download datasheets
Cat 303 expert review
Overview
The Cat 303 CR is a compact-radius mini excavator weighing 3.55 t (7,817 lb), with a C1.1 Turbo engine producing 17.6 kW (23.6 hp). It delivers 2.95 m (9.7 ft) digging depth, 5.24 m (17.0 ft) reach, and top travel speed of 4.5 km/h (2.8 mph).
Pros True zero-tail sweep and narrow width (~1.55 m) fit tight zones.
Simple tech and easy service access make it rental-friendly.
Simple tech and easy service access make it rental-friendly.
Cons Light weight (~3.5 t) struggles on soft ground.
Modest power, not ideal for breakout or deep rock work.
Modest power, not ideal for breakout or deep rock work.
Performance & Efficiency
Tier 4 Final emissions paired with auto-idle and efficient hydraulics lower fuel burn. Two-speed travel ensures balance between speed and traction.
In Comparison
Smaller than the 303.5 CR with less power, but more manoeuvrable. Compared to 305E2, it's lighter, better for compact jobs, and easier to move around.
Verdict
Great tool for tight sites, residential jobs, and rental yards. Pass on it if you’re handling heavy-duty digging, rock work, or large removal tasks.
Cat 303 owner rating
Cat 303 Mini excavators [2020-2025]
2020-2025
Overall rating
Based on 0 ratings
5.0
5 stars
100 %
4 stars
0 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Cat 303 similar models
Highlight differences
Blade height
Blade height 40.64 cm
Blade height -
Blade height -
Ground clearance
Ground clearance 33.53 cm
Ground clearance -
Ground clearance -
Height - top of cab
Height - top of cab 2.5 m
Height - top of cab -
Height - top of cab 2.68 m
Overall Length
Overall Length 4.69 m
Overall Length -
Overall Length -
Turning radius
Turning radius 0.91 m
Turning radius -
Turning radius -
Width over tracks
Width over tracks 1.55 m
Width over tracks -
Width over tracks -
Years
Years 2020-2025
Years 2020-2025
Years 2017-2025
Market Average
Market Average AED 129,000
Market Average AED 450,000
Market Average AED 346,000
Price
Price AED 105,000
Price AED 280,000
Price AED 310,000
Blade width
Blade width 155 cm
Blade width -
Blade width -
Arm crowding force
Arm crowding force 16.99 kN
Arm crowding force 9.8 kN
Arm crowding force 38 kN
Swing speed
Swing speed -
Swing speed -
Swing speed 9.8 rpm
Max digging depth
Max digging depth 3,017.52 mm
Max digging depth 2,300 mm
Max digging depth 4,190 mm
Max dump height
Max dump height 3,169.92 mm
Max dump height 2,880 mm
Max dump height 5,380 mm
Max digging reach
Max digging reach 5,273.04 mm
Max digging reach 3,620 mm
Max digging reach 7,250 mm
Operating weight
Operating weight 3,357 kg
Operating weight 1,790 kg
Operating weight 8,400 kg
Max speed forward
Max speed forward 4.83 kph
Max speed forward 3.2 kph
Max speed forward 5.63 kph
Engine model
Engine model -
Engine model Cat C1.8
Engine model Cat C3.3B
Boom length
Boom length -
Boom length 2.3 m
Boom length 4.4 m
Bucket width
Bucket width -
Bucket width 400 mm
Bucket width 700 mm
Bucket capacity
Bucket capacity -
Bucket capacity 0.04 cu m
Bucket capacity 0.84 cu m
Track gauge
Track gauge 1.25 m
Track gauge -
Track gauge 2.01 m
Track width
Track width 30.48 cm
Track width 10 cm
Track width 4.5 cm
Drawbar Pull
Drawbar Pull -
Drawbar Pull 14.2 kN
Drawbar Pull 62 kN
Track length
Track length -
Track length 1.4 m
Track length 2.85 m
Bore
Bore 7.87 cm
Bore -
Bore 9.4 cm
Displacement
Displacement 1,319.16 cu cm
Displacement 1,800 cu cm
Displacement 3,329.86 cu cm
Gross power
Gross power 19.46 kw
Gross power 18.12 kw
Gross power 49.66 kw
Stroke
Stroke 9.4 cm
Stroke -
Stroke 11.94 cm
Pump flow cap
Pump flow cap 49.77 lpm
Pump flow cap 31.5 lpm
Pump flow cap 160 lpm
Relief valve pressure
Relief valve pressure -
Relief valve pressure 219.94 bar
Relief valve pressure 241.31 bar
Bucket digging force
Bucket digging force 26.67 kN
Bucket digging force 12.7 kN
Bucket digging force 51 kN
Cooling fluid cap
Cooling fluid cap 3.79 liter
Cooling fluid cap -
Cooling fluid cap 14 liter
Fuel cap
Fuel cap 41.26 liter
Fuel cap 28 liter
Fuel cap 140 liter
Hydraulic fluid cap
Hydraulic fluid cap 68.89 liter
Hydraulic fluid cap 36 liter
Hydraulic fluid cap 82.13 liter
Engine oil cap
Engine oil cap 5.68 liter
Engine oil cap -
Engine oil cap 11.36 liter
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