The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Caterpillar
305 CR Mini Hydraulic Excavator
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Exterior
Model shown represents features on all Cat® Mini Excavators except where indicated.
Interior
Model shown represents features on all Cat® Mini Excavators except where indicated.
Features
Specifications
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Engine
Spec Value Net Power 45 HP Engine Model C1.7 Turbo Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 HP Note Advertised power is tested per the specified standard in effect at the time of manufacture. Gross Power - 2,400 rpm - SAE J1995:2014 48.4 HP Stroke 3.9 in Bore 3.3 in Displacement 101 in³ Emissions The Cat® C3.3B engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards. -
Weights
Spec Value Operating Weight 12688 lb Minimum Operating Weight with Canopy* 11016 lb Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight. Minimum Operating Weight with Cab* 11234 lb Maximum Operating Weight with Cab** 12688 lb Maximum Operating Weight with Canopy** 12469 lb Note (2) **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket. -
Dimensions - Long Stick
Spec Value Dig Depth 144.5 in Stick Length 63 in Track Width 78 in Maximum Blade Depth 23.4 in Maximum Dump Clearance 151.4 in Boom Swing - Left 615 mm Boom Swing - Right 34.1 ° Swing Bearing - Height 24.4 in Boom Height - Shipping Position 74.6 in Boom In Reach 101.6 in Maximum Reach 235.8 in Track Belt/Shoe Width 15.7 in Maximum Reach - Ground Level 229.7 in Maximum Blade Height 15.2 in O/A Shipping Height 100.4 in Tail Swing without Counterweight 43.1 in O/A Undercarriage Length 101.6 in Tail Swing with Counterweight 47.2 in Vertical Wall 100.8 in Note *Overall Shipping Length depends on blade position during shipment. Overall Shipping Length* 210.2 in Maximum Dig Height 210.8 in Ground Clearance 13.2 in -
Swing System
Spec Value Boom Swing - Left 72 Degrees Machine Swing Speed 9 r/min Boom Swing - Right 50 Degrees -
Dimensions - Standard Stick
Spec Value Maximum Dig Height 205.3 in Maximum Blade Height 15.2 in Dig Depth 134.6 in Boom Swing - Right 34.1 ° Maximum Reach - Ground Level 220.1 in Tail Swing without Counterweight 43.1 in Boom Height - Shipping Position 71.7 in Maximum Blade Depth 23.4 in Maximum Reach 226.6 in Boom Swing - Left 24.2 ° Overall Shipping Length* 208.9 in O/A Undercarriage Length 101.6 in Swing Bearing - Height 24.4 in Stick Length 53.2 in Track Belt/Shoe Width 15.7 in Boom In Reach 101.2 in Vertical Wall 91.9 in Tail Swing with Counterweight 47.2 in Maximum Dump Clearance 145.7 in O/A Shipping Height 100.4 in Note *Overall Shipping Length depends on blade position during shipment. Ground Clearance 13.2 in -
Service Refill Capacities
Spec Value Hydraulic Tank 16 gal (US) Fuel Tank 17 gal (US) Engine Oil 1.6 gal (US) Hydraulic System 20 gal (US) Cooling System 2.9 gal (US) -
Travel System
Spec Value Ground Pressure - Minimum Weight 4 psi Maximum Traction Force - Low Speed 11353 lbf Ground Pressure - Maximum Weight 4.7 psi Travel Speed - Low 1.7 mile/h Maximum Traction Force - High Speed 5553 lbf Travel Speed - High 3.1 mile/h Gradeability - Maximum 30 degrees -
Blade
Spec Value Angle Blade Width 78 in Straight Blade Height 15.4 in Straight Blade Width 78 in Angle Blade Height 15.7 in Angle Blade - Left 25 degrees Angle Blade - Right 25 degrees -
Sound
Spec Value Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) Note *The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed. **The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC. Operator Sound Pressure (ISO 6396:2008) 72 dB(A) -
Hydraulic System
Spec Value Auxiliary Circuit - Secondary - Pressure 3843 psi Pump Flow at 2,400 rpm 35 gal/min Operating Pressure - Swing 2901 psi Operating Pressure - Travel 3843 psi Auxiliary Circuit - Secondary - Flow 7 gal/min Digging Force - Stick - Standard 6362 lbf Auxiliary Circuit - Primary - Pressure 3843 psi Auxiliary Circuit - Primary - Flow 21 gal/min Digging Force - Bucket 11061 lbf Operating Pressure - Equipment 3843 psi Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Type Load Sensing Hydraulics with Variable Displacement Piston Pump Digging Force - Stick - Long 5665 lbf -
Certification - Cab and Canopy
Spec Value Top Guard ISO 10262:1998 Level I Roll Over Protective Structure (ROPS) ISO 12117-2:2008 Tip Over Protective Structure (TOPS) ISO 12117:1997 -
Weight Increase from Minimum Configuration
Spec Value Counterweight 534 lb Long Stick 75 lb Steel Tracks with Pads 827 lb Angle Blade 225 lb -
Sustainability
Spec Value Recyclability 96%
Standard Equipment
ENGINE
- Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final)
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Two Speed Travel
- Fuel Water Separator
- Power on Demand (not available in all regions)
- Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
HYDRAULICS
- Smart Tech Electronic Pump
- Accumulator
- Automatic Swing Brake
- Auxiliary Hydraulic Lines
- One and Two Way Auxiliary Flow
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
OPERATOR ENVIRONMENT
- Canopy or Cab
- Top Guard ISO 10262:1998 Level I
- ROPS – ISO 12117-2:2008
- TOPS – ISO 12117:1997
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer (optional in some regions)
- Adjustable Wrist Rests
- Washable Floor Mat
- Travel Pedals and Hand Levers
- Machine Security
- Machine Security – Standard Key with Pass Code
- Fabric Suspension Seat (Cab only)
- Vinyl Suspension Seat (Canopy only)
- Hydraulic Lockout – All Controls
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- Storage Pocket
- Skylight
- Mounting Bosses for Front
- Signaling/Warning Horn
- Interior Light (Cab only)
- Boom Light, Halogen (not available in all regions)
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Hour Meter with Wake Up Switch
– Jog Dial (cab only)
UNDERCARRIAGE
- Rubber Belt (400 mm/15.7 in)
- Dozer Straight Blade
- Dozer Blade Float
- Tie Downs on Track Frame
BOOM, STICK AND LINKAGES
- One Piece Boom (2716 mm/106.9 in)
- Standard Stick (1351 mm/53.2 in)
- Front Shovel Capable – Pin-On
- Thumb Ready
- Certified Lifting Eye
ELECTRICAL
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Battery Disconnect
- 12 Volt Power Socket
- Travel Alarm (optional in some regions)
Optional Equipment
UNDERCARRIAGE
- Steel Track (400 mm/15.7 in)
- Steel Track with Rubber Pads
- Angle Blade
BOOM, STICK AND LINKAGES
- Long Stick (1601 mm/63.0 in)
- Front Shovel Capable – Dual Lock Manual Coupler
- Front Shovel Capable – Hydraulic Coupler
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines
- Bucket Divert Lines
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines
ELECTRICAL
- Product Link™ PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
GUARDING
- Top Guard ISO 10262:1998 (Level II) (Cab)
- Front Guard (Mesh) ISO 10262:1998 (Level I) (Cab)
- Front Guard (Heavy Duty) ISO 10262:1998 (Level II) (Cab)
- Front Guard (Mesh) ISO 10262:1998 (Level I) (Canopy)
- Front Guard (Heavy Duty) ISO 10262:1998 (Level II) (Canopy)
OTHER
- Bio Oil Capable
- Eco Drain
- Water Jacket Heater
- Counterweight (242 kg/534 lb)
OPERATOR ENVIRONMENT
- Cab with Air Conditioning
- Cab with Heater
- No Travel Pedals and Hand Levers (optional in some regions)
- Machine Security – Push to Start with Key Fob/Pass Code
- LED Front Lights
- LED Front and Rear Lights
- LED Boom Light
- Mirrors, Left, Right and Rear
- Camera
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
- Next Generation Advanced Monitor
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 and IP69K)
– Numeric Security Code - Seat Belt Reminder System
- Cat Grade with Advanced 2D
- Cat Grade with 3D
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