303.5E CR Hydraulic Excavator

303.5E CR Hydraulic Excavator

The Cat 303.5E CR delivers high performance in a compact radius design to help you work in the tightest applications.

Engine Model
Cat® C1.8
Net Power
31.6 hp
Operating Weight
7734.0 lb
Gross Power
33.3 hp

Engine

Engine Model
Cat® C1.8
Net Power
31.6hp
Gross Power
33.3hp
Engine Model
Cat® C1.8
Net Power
31.6HP
Gross Power
33.3HP

Weights

Operating Weight
7734.0lb
Operating Weight - With Cab
8139lb
Operating Weight
7734lb

Engine Dimensions

Bore
3.4in
Stroke
4.0in
Displacement
110.0in3
Bore
3.4in
Stroke
4in
Displacement
110in³

Hydraulic System

Operating Pressure - Equipment
3553.0psi
Operating Pressure - Equipment
3553psi
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
2625psi
Auxiliary Circuit - Primary
15.9gal/min
Auxiliary Circuit - Secondary
7.1gal/min
Digging Force - Stick - Standard
4249lb
Digging Force - Stick - Long
3799lb
Digging Force - Bucket
7419lb

Swing System

Machine Swing Speed
9.0RPM
Boom swing - left (without stop)
80.0Degrees
Boom swing - left (with stop)
55.0Degrees
Boom Swing - Right
50.0Degrees
Machine Swing Speed
9r/min
Boom Swing - Left - Without Stop
80°
Boom Swing - Left - With Stop
55°
Boom Swing - Right
50°

Blade

Width
70.0in
Height
12.8in
Dig Depth
18.5in
Lift Height
15.7in
Width
70in

Service Refill Capacities

Cooling System
1.5gal
Engine Oil
1.8gal
Hydraulic Tank
11.2gal
Fuel Tank
12.2gal
Hydraulic System
17.2gal
Cooling System
1.5gal (US)
Engine Oil
1.8gal (US)
Hydraulic Tank
11.2gal (US)
Fuel Tank
12.2gal (US)
Hydraulic System
17.2gal (US)

Dimensions

Shipping Height
8.2ft
Shipping Length
15.5ft
Transport Width
5.8ft
Maximum Digging Depth - Standard Stick
9.6ft
Maximum Reach - Ground Level - Standard Stick
16.7ft
Height - Over Cab
8.2ft
Maximum Cutting Height - Long Stick
16.5ft
Maximum Cutting Height - Standard Stick
16.2ft
Maximum Dump Height - Long Stick
11.9ft
Maximum Dump Height - Standard Stick
11.5ft
Maximum Horizontal Reach - Long Stick
17.8ft
Maximum Horizontal Reach - Standard Stick
17.1ft
Maximum Vertical Dig Depth - Long Stick
8.2ft
Maximum Vertical Dig Depth - Standard Stick
7.7ft
Track Shoe Width
1ft
Shipping Height
8.2ft
Shipping Length
15.5ft
Transport Width
5.8ft

Travel System

Max traction force - high speed
3799.0lb
Max traction force - low speed
6969.0lb
Maximum Traction Force - High Speed
3799lb
Maximum Traction Force - Low Speed
6969lb
Travel Speed - High
2.8mile/h
Travel Speed - Low
1.6mile/h

MSC Comments

MSC Spec Date
3/06

Standard Equipment:

  • 1-way and 2-way (combined function) auxiliary hydraulic lines
  • Adjustable wrist rests
  • Alternator
  • Automatic engine idle
  • Automatic swing park brake
  • Automatic two speed travel
  • Auxiliary line quick disconnects
  • Boom cylinder guard
  • Cab mounted work light
  • Canopy with FOPS ISO 10262 (Level 1) and Tip-Over Protection (TOPS) ISO 12117
  • Coat hook
  • Cup holder
  • Control pattern changer (not available in Europe)
  • COMPASS display panel
  • Dozer blade with float function
  • Floor mat
  • Foot travel pedals
  • Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval
  • Horn
  • Hydraulic oil cooler
  • Lifting eye on bucket linkage (optional in Europe)
  • Lockable storage box
  • Low maintenance linkage pin joints
  • Maintenance free battery
  • Rubber track
  • Seatbelt, 76 mm (3 in) wide, retractable (optional in Europe)
  • Standard stick
  • Suspension seat, vinyl covered
  • "Thumb ready" stick (standard equipment in all regions except Europe)
  • Travel alarm (optional in Europe)

Optional Equipment:

  • Air conditioning
  • Angle dozer blade with float function
  • Beacon socket for canopy machines
  • Boom check valve (Europe only)
  • Boom mounted light
  • Cab, radio ready with FOPS ISO 10262 (Level 1), Tip-Over Protection (TOPS) ISO 12117, heater/defroster, interior light and windshield wiper/washer
  • Ecology drain valve for hydraulic tank
  • Ecology drain valve for engine oil
  • Fan and sun blind installation
  • Front screen guard for cab and canopy
  • High back suspension seat, fabric covered
  • Hydraulic quick coupler lines
  • Long stick
  • Mechanical quick coupler
  • Mirrors for cab and canopy
  • Secondary auxiliary hydraulic lines
  • Steel track and steel track with rubber pads