Caterpillar 303.5 Mini Excavator Specs

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

The Caterpillar 303.5 is a compact mini excavator designed for digging, trenching, grading, and utility work in confined job sites. As part of Caterpillar's mini excavator range, the 303.5 combines a small operating footprint with hydraulic performance suited to landscaping, construction, and municipal applications. It is commonly used where maneuverability, transportability, and reduced ground disturbance are important. Typical features include a zero or reduced tail swing design, auxiliary hydraulic capability, and compatibility with a range of buckets and attachments. The Caterpillar 303.5 is valued for precision control, versatility, and efficient operation in tight-access environments.

Blade

Caterpillar 303.5 Mini Excavator Blade specifications
Dig Depth	13.80 in (35.05 cm)
Height	14.60 in (37.08 cm)
Lift Height	16.50 in (41.91 cm)
Width	5.10 ft (1.55 m)

Dimensions

Caterpillar 303.5 Mini Excavator Dimensions specifications
Center Ground Clearance	1.00 ft (0.30 m)
Height - Over Cab	8.00 ft (2.44 m)
Height - Over Canopy	8.00 ft (2.44 m)
Maximum Cutting Height - Long Stick	17.30 ft (5.27 m)
Maximum Cutting Height - Standard Stick	16.61 ft (5.06 m)
Maximum Digging Depth - Long Stick	11.80 ft (3.60 m)
Maximum Digging Depth - Standard Stick	10.40 ft (3.17 m)
Maximum Dump Height - Long Stick	12.60 ft (3.84 m)
Maximum Dump Height - Standard Stick	11.90 ft (3.63 m)
Maximum Horizontal Reach - Long Stick	18.61 ft (5.67 m)
Maximum Horizontal Reach - Standard Stick	17.40 ft (5.30 m)
Maximum Reach - Ground Level - Long Stick	18.20 ft (5.55 m)
Maximum Reach - Ground Level - Standard Stick	17.00 ft (5.18 m)
Maximum Vertical Dig Depth - Long Stick	9.10 ft (2.77 m)
Maximum Vertical Dig Depth - Standard Stick	7.90 ft (2.41 m)
Shipping Length	16.80 ft (5.12 m)
Stick Length - Long Stick	5.50 ft (1.68 m)
Stick Length - Standard Stick	4.10 ft (1.25 m)
Swing Radius - Rear	4.70 ft (1.43 m)
Track Gauge	4.10 ft (1.25 m)
Track Shoe Width	12.00 ft (3.66 m)
Width - Over Track	5.10 ft (1.55 m)
Width - Upper Structure	5.10 ft (1.55 m)

Electrical System

Caterpillar 303.5 Mini Excavator Electrical System specifications
Electrical System Type	Twelve-volt system

Engine

Caterpillar 303.5 Mini Excavator Engine specifications
Engine Model	3013
Gross Power	27.00 hp (20.13 kw)
Net Power	25.00 hp (18.64 kw)

Engine Dimensions

Caterpillar 303.5 Mini Excavator Engine Dimensions specifications
Bore	3.40 in (8.64 cm)
Displacement	91.30 cu in (1,496.14 cu cm)
Stroke	3.60 in (9.14 cm)

Hydraulic System

Caterpillar 303.5 Mini Excavator Hydraulic System specifications
Auxiliary Circuit - Primary (245 Bar/3,553 Psi)	17.40 gpm (65.86 lpm)
Digging Force - Bucket	5,742.00 lbs (2,604.08 kg)
Digging Force - Stick - Long	3,080.00 lbs (1,396.83 kg)
Digging Force - Stick - Standard	4,114.00 lbs (1,865.76 kg)
Operating Pressure - Equipment	2987 psi
Operating Pressure - Swing	2494 psi
Operating Pressure - Travel	2987 psi
Pump - Gear (Single)	7.54 gpm (28.54 lpm)
Pump - Gear (Tandem)	10.01 gpm (37.89 lpm)

Msc Comments

Caterpillar 303.5 Mini Excavator Msc Comments specifications
Msc Spec Date	1/1/2000

Operational

Caterpillar 303.5 Mini Excavator Operational specifications
Operating Weight	7,546.00 lbs (3,422.22 kg)

Service Refill Capacities

Caterpillar 303.5 Mini Excavator Service Refill Capacities specifications
Cooling System Tag	1.30 gal (4.92 l)
Engine Oil	1.50 gal (5.68 l)
Fuel Tank	14.30 gal (54.13 l)
Hydraulic System	18.20 gal (68.89 l)
Hydraulic Tank	12.00 gal (45.42 l)

Swing System

Caterpillar 303.5 Mini Excavator Swing System specifications
Boom Swing - Left - With Stop	55 degrees
Boom Swing - Left - Without Stop	90 degrees
Boom Swing - Right	50 degrees
Machine Swing Speed	9.3 rpm
Swing System Type	Hydraulic Motor Driven

Travel System

Caterpillar 303.5 Mini Excavator Travel System specifications
Gradeability - Maximum - High	30 degrees
Gradeability - Maximum - Low	37 degrees
Maximum Traction Force - High Speed	3,825.00 lbs (1,734.69 kg)
Maximum Traction Force - Low Speed	6,750.00 lbs (3,061.22 kg)
Travel Speed - High	2.80 mph (4.51 kph)
Travel Speed - Low	1.60 mph (2.57 kph)

Weights

Caterpillar 303.5 Mini Excavator Weights specifications
Operating Weight - With Cab	7,810.00 lbs (3,541.95 kg)

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