New CAT Equipment

 

Mini Excavators 303.5 CR

An extensive line of Cat® mini hydraulic excavators offers the performance to dig in and be productive on every job.

Mini Excavators 303.5 CR

An extensive line of Cat® mini hydraulic excavators offers the performance to dig in and be productive on every job.
Units: USMetric

Blade

Height 13.8 in 350 mm
Width 70.1 in 1780 mm
Units: USMetric

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level I)
Units: USMetric

Dimensions - Long Stick

Dig Depth 122.4 in 3110 mm
Track Belt/Shoe Width 11.8 in 300 mm
Maximum Reach 216.9 in 5510 mm
O/A Track Width 70.1 in 1780 mm
Maximum Blade Depth 21.1 in 535 mm
Tail Swing without Counterweight 35 in 890 mm
Stick Length 61.4 in 1560 mm
Swing Bearing - Height 22.2 in 565 mm
Boom Swing - Left 640 mm 25.2 °
Overall Shipping Length* 190.9 in 4850 mm
Maximum Reach - Ground Level 211.8 in 5380 mm
Maximum Dump Clearance 141.7 in 3600 mm
Tail Swing with Counterweight 37.8 in 960 mm
O/A Shipping Height 97.6 in 2480 mm
Note *Overall Shipping Length depends on blade position during shipment.
Boom In Reach 73.2 in 1860 mm
Maximum Dig Height 197.6 in 5020 mm
Vertical Wall 94.1 in 2390 mm
Boom Height - Shipping Position 68.9 in 1750 mm
Maximum Blade Height 15.2 in 385 mm
O/A Undercarriage Length 87.4 in 2220 mm
Boom Swing - Right 34.3 ° 870 mm
Ground Clearance 12.2 in 310 mm
Units: USMetric

Dimensions - Standard Stick

Boom Swing - Right 34.3 ° 870 mm
Tail Swing with Counterweight 37.8 in 960 mm
Stick Length 49.6 in 1260 mm
Maximum Reach - Ground Level 202 in 5130 mm
Boom Swing - Left 25.2 ° 640 mm
Maximum Reach 207.5 in 5270 mm
Track Belt/Shoe Width 11.8 in 300 mm
Maximum Dump Clearance 137.4 in 3490 mm
Swing Bearing - Height 22.2 in 565 mm
Boom Height - Shipping Position 59.8 in 1520 mm
O/A Shipping Height 97.6 in 2480 mm
Overall Shipping Length* 189 in 4800 mm
Boom In Reach 69.3 in 1760 mm
Note *Overall Shipping Length depends on blade position during shipment.
Tail Swing with Extra Counterweight 39.6 in 1005 mm
Maximum Dig Height 193.7 in 4920 mm
Vertical Wall 88.6 in 2250 mm
Dig Depth 110.6 in 2810 mm
O/A Undercarriage Length 87.4 in 2220 mm
Tail Swing without Counterweight 35 in 890 mm
Maximum Blade Depth 21.1 in 535 mm
Maximum Blade Height 15.2 in 385 mm
Ground Clearance 12.2 in 310 mm
Units: USMetric

Dimensions (Approximate) - Long Stick

Tail Swing with Extra Counterweight 39.6 in 1005 mm
Units: USMetric

Dimensions (Approximate) - Standard Stick

Tail Swing with Extra Counterweight 39.6 in 1005 mm
Units: USMetric

Engine

Net Power 23.6 HP 17.6 kW
Engine Model C1.7
Bore 3.3 in 84 mm
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 23.6 HP 17.6 kW
Displacement 104 in³ 1.7 l
Note Net power is tested per ISO 9249 and 80/1269/EEC.
Gross Power - 2,400 rpm - SAE J1995 24.7 HP 18.4 kW
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note (2) Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.
Stroke 3.9 in 100 mm
Units: USMetric

Hydraulic System

Pump Flow at 2,400 rpm 26 gal/min 100 l/min
Auxiliary Circuit - Primary - Flow 18 gal/min 70 l/min
Operating Pressure - Swing 2625 psi 181 bar
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Pressure 3553 psi 245 bar
Digging Force - Stick - Long 3799 lbf 16.9 kN
Auxiliary Circuit - Secondary - Flow 7 gal/min 25 l/min
Digging Force - Bucket 7419 lbf 33 kN
Operating Pressure - Travel 3553 psi 245 bar
Operating Pressure - Equipment 3553 psi 245 bar
Auxiliary Circuit - Primary - Pressure 3553 psi 245 bar
Digging Force - Stick - Standard 4249 lbf 18.9 kN
Note *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Units: USMetric

Service Refill Capacities

Fuel Tank 11.9 gal (US) 45 l
Hydraulic Tank 5.3 gal (US) 20 l
Cooling System 1.8 gal (US) 7 l
Engine Oil 1.6 gal (US) 6 l
Hydraulic System 11.9 gal (US) 45 l
Units: USMetric

Sound

Note European Union Directive ‚ "2000/14/EC"
Operator Sound Pressure (ISO 6396:2008) 78 dB(A) 78 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 94 dB(A) 94 dB(A)
Units: USMetric

Swing System

Machine Swing Speed 9 r/min 9 r/min
Boom Swing - Right 50 ° 50 °
Boom Swing - Left 75 ° 75 °
Units: USMetric

Travel System

Ground Pressure - Minimum Weight 4.3 psi 29.6 kPa
Maximum Traction Force - High Speed 3799 lbf 16.9 kN
Maximum Traction Force - Low Speed 6969 lbf 31 kN
Travel Speed - High 2.8 mile/h 4.5 km/h
Gradeability - Maximum 30 degrees
Travel Speed - Low 1.6 mile/h 2.6 km/h
Ground Pressure - Maximum Weight 5.2 psi 35.7 kPa
Units: USMetric

Weight Increase from Minimum Configuration

Cab 309 lb 140 kg
Counterweight 221 lb 100 kg
Steel Tracks 287 lb 130 kg
Long Stick 44 lb 20 kg
Angle Blade 353 lb 160 kg
Extra Counterweight 551 lb 250 kg
Units: USMetric

Weights

Operating Weight 9239 lb 4190 kg
Minimum Operating Weight with Canopy* 7673 lb 3480 kg
EU: CE Plate Weight with Cab*** 8004 lb 3630 kg
Note (3) ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
Maximum Operating Weight with Cab** 9239 lb 4190 kg
Maximum Operating Weight with Canopy** 8930 lb 4050 kg
EU: CE Plate Weight with Canopy*** 7784 lb 3530 kg
Minimum Operating Weight with Cab* 7982 lb 3620 kg
Note (1) * Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Note (2) **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
ENGINE
Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
HYDRAULICS
Smart Tech Electronic Pump
OPERATOR ENVIRONMENT
Tilt-up Canopy or Tilt-Up Cab
UNDERCARRIAGE
Rubber Belt (300 mm/11.8 in wide)
BOOM, STICK AND LINKAGES
One Piece Boom (2400 mm/94.5 in)
ELECTRICAL
12 Volt Battery

association discounts

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