Caterpillar 303.5E2 CR Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Caterpillar ➔
Model: 303.5E2 CR ➔

The Caterpillar 303.5E2 CR is a compact mini excavator designed for digging, trenching, grading, and utility work in confined job sites. It features a reduced tail swing design for improved maneuverability in tight spaces and is commonly used in construction, landscaping, and municipal applications. The 303.5E2 CR is part of Caterpillar's 3-ton class mini excavator lineup and is known for its hydraulic performance, operator comfort, and transport-friendly size. Typical attachments include buckets, augers, and hydraulic thumbs. This model is suited for contractors needing a versatile, small excavator with efficient operation and easy access to restricted work areas.

Blade

Caterpillar 303.5E2 CR Mini Excavator Blade specifications
Dig Depth	19.00 in (48.26 cm)
Height	13.00 in (33.02 cm)
Lift Height	16.00 in (40.64 cm)
Width	5.90 ft (1.80 m)

Engine

Caterpillar 303.5E2 CR Mini Excavator Engine specifications
Bore	3.40 in (8.64 cm)
Displacement	104.00 cu in (1,704.26 cu cm)
Engine Model	Cat C1.7
Gross Power	24.80 hp (18.49 kw)
Net Power	23.50 hp (17.52 kw)
Net Power - Iso 9249	23.50 hp (17.52 kw)
Note	Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Rated Net Power - Iso 9249	23.50 hp (17.52 kw)
Stroke	3.60 in (9.14 cm)

Hydraulic System

Caterpillar 303.5E2 CR Mini Excavator Hydraulic System specifications
Auxiliary Circuit - Primary	18.50 gpm (70.02 lpm)
Auxiliary Circuit - Secondary	6.60 gpm (24.98 lpm)
Digging Force - Bucket	7,419.00 lbs (3,365.21 kg)
Digging Force - Stick - Long	3,799.00 lbs (1,723.20 kg)
Digging Force - Stick - Standard	4,249.00 lbs (1,927.32 kg)
Note	Load sensing hydraulics with variable displacement piston pump.
Operating Pressure - Equipment	3553 psi
Operating Pressure - Swing	3132 psi
Operating Pressure - Travel	3553 psi
Pump Flow	26.40 gpm (99.92 lpm)

Operating Specifications

Caterpillar 303.5E2 CR Mini Excavator Operating Specifications specifications
Maximum Dig Depth	125.00 in (317.50 cm)

Operational

Caterpillar 303.5E2 CR Mini Excavator Operational specifications
Operating Weight	8,209.00 lbs (3,723.54 kg)

Service Refill Capacities

Caterpillar 303.5E2 CR Mini Excavator Service Refill Capacities specifications
Cooling System	1.50 gal (5.68 l)
Engine Oil	1.80 gal (6.81 l)
Fuel Tank	12.20 gal (46.18 l)
Hydraulic System	17.20 gal (65.10 l)
Hydraulic Tank	11.20 gal (42.39 l)

Swing System

Caterpillar 303.5E2 CR Mini Excavator Swing System specifications
Machine Swing Speed	10 rpm
Swing - Right	50 degrees

Travel System

Caterpillar 303.5E2 CR Mini Excavator Travel System specifications
Ground Pressure	4.6 psi
Maximum Traction Force - High Speed	3,822.00 lbs (1,733.63 kg)
Maximum Traction Force - Low Speed	6,992.00 lbs (3,171.52 kg)
Travel Speed - High	2.90 mph (4.67 kph)
Travel Speed - Low	2.00 mph (3.22 kph)

Weights

Caterpillar 303.5E2 CR Mini Excavator Weights specifications
Note	Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Cab	8,209.00 lbs (3,723.54 kg)
Operating Weight - With Canopy	7,803.00 lbs (3,539.39 kg)

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