Specification sheet Mini Excavator Ref caterpillar-303c-cr-mini-excavator

Caterpillar 303C CR

The Caterpillar 303C CR is a mini excavator with an operating weight of 7,835 lb, a 30 hp engine, and a dig depth of 9.7 ft.

✓ QA-verified — every figure checked for physical possibility and class plausibility; failures withheld →
Operating weight
7,835lb
 
Engine power
30hp
 
Net Power
Dig depth
9.7ft
 

◆Where it sits in its classpercentile · mini excavators

Among 479 mini excavators , the Caterpillar 303C CR sits above the median for its class:

  • Operating weight 7,840 lb heavier than 69% (n=438)
  • Engine power 30 hp more powerful than 72% (n=448)
  • Dig depth 9.7 ft deeper-digging than 57% (n=426)

01 Boom/Stick Option (Hex) 1 Specification

Shipping Length Of Unit 16.9ft in 5,151mm‖ — metric converted from the published imperial value
Max Cutting Height 16.25ft in 4,953mm‖ — metric converted from the published imperial value
Shipping Height Of Unit 8.21ft in 2,502mm‖ — metric converted from the published imperial value
Max Loading Height 11.5ft in 3,505mm‖ — metric converted from the published imperial value
Max Reach Along Ground 16.9ft in 5,151mm‖ — metric converted from the published imperial value
Max Vertical Wall Digging Depth 7.1ft in 2,164mm‖ — metric converted from the published imperial value
Max Digging Depth 9.7ft in 2,957mm‖ — metric converted from the published imperial value
Boom/Stick Option (Hex) 1 Standard Stick

02 Boom/Stick Option (Hex) 2 Specification

Max Cutting Height 16.7ft in 5,090mm‖ — metric converted from the published imperial value
Shipping Length Of Unit 15.8ft in 4,816mm‖ — metric converted from the published imperial value
Max Loading Height 10.1ft in 3,078mm‖ — metric converted from the published imperial value
Shipping Height Of Unit 8.21ft in 2,502mm‖ — metric converted from the published imperial value
Max Reach Along Ground 17.7ft in 5,395mm‖ — metric converted from the published imperial value
Max Vertical Wall Digging Depth 8.4ft in 2,560mm‖ — metric converted from the published imperial value
Max Digging Depth 9.7ft in 2,957mm‖ — metric converted from the published imperial value
Boom/Stick Option (Hex) 2 Long Stick

03 Dimensions Specification

Width To Outside Of Tracks 5.08ft in 1,548mm‖ — metric converted from the published imperial value
Length Of Track On Ground 7.25ft in 2,210mm‖ — metric converted from the published imperial value
Ground Clearance 1.04ft in 317mm‖ — metric converted from the published imperial value
Height To Top Of Cab 8.17ft in 2,490mm‖ — metric converted from the published imperial value
Tail Swing Radius 2.55ft in 777mm‖ — metric converted from the published imperial value
Track Gauge 4.1ft in 1,250mm‖ — metric converted from the published imperial value
Maximum Dump Height - Long Stick 11.84ft in 3,609mm‖ — metric converted from the published imperial value
Maximum Dump Height - Standard Stick 11.45ft in 3,490mm‖ — metric converted from the published imperial value
Maximum Horizontal Reach - Long Stick 17.55ft in 5,349mm‖ — metric converted from the published imperial value
Maximum Horizontal Reach - Standard Stick 16.73ft in 5,099mm‖ — metric converted from the published imperial value
Maximum Reach - Ground Level - Standard Stick 16.8ft in 5,121mm‖ — metric converted from the published imperial value
Maximum Vertical Dig Depth - Standard Stick 7.1ft in 2,164mm‖ — metric converted from the published imperial value
Removal Counterweight Clearance 1.86ft in 567mm‖ — metric converted from the published imperial value
Shipping Height 8.2ft in 2,499mm‖ — metric converted from the published imperial value
Maximum Digging Depth - Long Stick 10.5ft in 3,200mm‖ — metric converted from the published imperial value
Maximum Cutting Height - Standard Stick 16.24ft in 4,950mm‖ — metric converted from the published imperial value
Shipping Length 15.55ft in 4,740mm‖ — metric converted from the published imperial value
Maximum Cutting Height - Long Stick 16.61ft in 5,063mm‖ — metric converted from the published imperial value
Height - Over Cab 8.2ft in 2,499mm‖ — metric converted from the published imperial value
Width - Over Track 5.09ft in 1,551mm‖ — metric converted from the published imperial value
Maximum Digging Depth - Standard Stick 9.6ft in 2,926mm‖ — metric converted from the published imperial value
Swing Radius - Rear 2.92ft in 890mm‖ — metric converted from the published imperial value
Length - Center Of Rollers 16.73ft 5,099mm‖ — metric converted from the published imperial value
Track Shoe Width 0.98ft in 299mm‖ — metric converted from the published imperial value
Transport Width 5.09ft in 1,551mm‖ — metric converted from the published imperial value

04 Undercarriage Specification

Shoe Size 11.82in 300.2mm‖ — metric converted from the published imperial value
Max Travel Speed 4.6mph 7.4km/h‖ — metric converted from the published imperial value

05 Swing System Specification

Machine Swing Speed 9rpm
Boom Swing - Left - Without Stop 80degrees
Boom Swing - Left - With Stop 55degrees
Boom Swing - Right 50degrees

06 Engine Specification

Number Of Cylinders 3
Engine Make 2251
Engine Model S3Q2
Gross Power 31hp 23kw‖ — metric converted from the published imperial value
Net Power 30hp 22kw‖ — metric converted from the published imperial value
Power Measured @ 2300rpm
Displacement 116cu in 1,901cm3‖ — metric converted from the published imperial value
Engine Model Mitsubishi S3Q2

07 Operational Specification

Operating Weight 7835lb 3,554kg‖ — metric converted from the published imperial value
Fuel Capacity 11.9gal 45l‖ — metric converted from the published imperial value
Cooling System Fluid Capacity 1.6gal 6.1l‖ — metric converted from the published imperial value
Hydraulic System Fluid Capacity 17.2gal 65.1l‖ — metric converted from the published imperial value
Engine Oil Capacity 1.6gal 6.1l‖ — metric converted from the published imperial value
Operating Voltage 12V
Alternator Supplied Amperage 50amps
Hydraulic System Relief Valve Pressure 3553psi 24,497kpa‖ — metric converted from the published imperial value
Hydraulic Pump Flow Capacity 23.2gal/min 87.8l/min‖ — metric converted from the published imperial value

08 Swing Mechanism Specification

Swing Speed 9rpm

09 Weights Specification

Operating Weight 7573lb 3,435kg‖ — metric converted from the published imperial value
Operating Weight - With Cab 7835lb 3,554kg‖ — metric converted from the published imperial value

10 Blade Specification

Height 13in 330mm‖ — metric converted from the published imperial value
Width 5.1ft in 1,554mm‖ — metric converted from the published imperial value
Lift Height 16in 406mm‖ — metric converted from the published imperial value
Dig Depth 18in 457mm‖ — metric converted from the published imperial value

11 Hydraulic System Specification

Operating Pressure - Swing 2495psi 17,202kpa‖ — metric converted from the published imperial value
Operating Pressure - Equipment 3553psi 24,497kpa‖ — metric converted from the published imperial value
Operating Pressure - Travel 3553psi 24,497kpa‖ — metric converted from the published imperial value
Digging Force - Stick - Standard 4249lb 1,927kg‖ — metric converted from the published imperial value
Digging Force - Stick - Long 3799lb 1,723kg‖ — metric converted from the published imperial value
Digging Force - Bucket 7419lb 3,365kg‖ — metric converted from the published imperial value
Auxiliary Circuit - Primary (245 Bar/3,553 Psi) 15.9gal/min 60.2l/min‖ — metric converted from the published imperial value
Auxiliary Circuits - Secondary - At 174 Bar 7.1gal/min 27l/min‖ — metric converted from the published imperial value

12 Service Refill Capacities Specification

Cooling System 1.6gal 6.1l‖ — metric converted from the published imperial value
Fuel Tank 11.9gal 45l‖ — metric converted from the published imperial value
Hydraulic Tank 9.8gal 37l‖ — metric converted from the published imperial value
Hydraulic System 17.2gal 65.1l‖ — metric converted from the published imperial value
Engine Oil 1.6gal 6.1l‖ — metric converted from the published imperial value

13 Engine Dimensions Specification

Bore 3.5in 89mm‖ — metric converted from the published imperial value
Stroke 4.1in 104mm‖ — metric converted from the published imperial value
Displacement 116cu in 1,901cm3‖ — metric converted from the published imperial value

14 Sound Levels Specification

Cab 82 dB(A)
Canopy 78 dB(A)

15 Msc Comments Specification

Msc Spec Date 12/05

16 Travel System Specification

Maximum Traction Force - High Speed 3979lb 1,805kg‖ — metric converted from the published imperial value
Maximum Traction Force - Low Speed 7508lb 3,406kg‖ — metric converted from the published imperial value
Gradeability - Maximum - High 30degrees
Travel Speed - High 2.9mph 4.7km/h‖ — metric converted from the published imperial value
Travel Speed - Low 1.6mph 2.6km/h‖ — metric converted from the published imperial value

Data notes

‖

Converted metric figure. The source published imperial figures only for this machine. Metric figures marked ‖ are unit conversions of the published imperial value, rounded to the same precision — they are not separately published measurements. Because there is no independently published metric figure to compare against, no cross-unit consistency check applies to them; the imperial figures they derive from were checked for physically possible magnitude and for plausibility against this equipment class.

Method. Figures are manufacturer reference specifications, not measurements. The source published imperial figures for this machine in a single unit system, so no cross-unit consistency check applies; every value is checked for physically possible magnitude and for plausibility against its equipment class before publication. Figures that fail either check are withheld rather than shown, and figures reconstructed from related data are marked above. Metric figures marked ‖ are converted from the published imperial value rather than reproduced from the source.