The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Net Power 45 HP
Operating Weight 12688 lb
Dig Depth 144.5 in
Engine Model C1.7 Turbo
Bore 3.3in
Displacement 101in³
Emissions The Cat® C3.3B engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model C1.7 Turbo
Gross Power - 2,400 rpm - SAE J1995:2014 48.4HP
Net Power 45HP
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45HP
Note Advertised power is tested per the specified standard in effect at the time of manufacture.
Stroke 3.9in
Maximum Operating Weight with Cab** 12688lb
Maximum Operating Weight with Canopy** 12469lb
Minimum Operating Weight with Cab* 11234lb
Minimum Operating Weight with Canopy* 11016lb
Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Note (2) **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Operating Weight 12688lb
Boom Height - Shipping Position 74.6in
Boom In Reach 101.6in
Boom Swing - Left 615mm
Boom Swing - Right 34.1°
Dig Depth 144.5in
Ground Clearance 13.2in
Maximum Blade Depth 23.4in
Maximum Blade Height 15.2in
Maximum Dig Height 210.8in
Maximum Dump Clearance 151.4in
Maximum Reach 235.8in
Maximum Reach - Ground Level 229.7in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 100.4in
O/A Undercarriage Length 101.6in
Overall Shipping Length* 210.2in
Stick Length 63in
Swing Bearing - Height 24.4in
Tail Swing with Counterweight 47.2in
Tail Swing without Counterweight 43.1in
Track Belt/Shoe Width 15.7in
Track Width 78in
Vertical Wall 100.8in
Boom Height - Shipping Position 71.7in
Boom In Reach 101.2in
Boom Swing - Left 24.2°
Boom Swing - Right 34.1°
Dig Depth 134.6in
Ground Clearance 13.2in
Maximum Blade Depth 23.4in
Maximum Blade Height 15.2in
Maximum Dig Height 205.3in
Maximum Dump Clearance 145.7in
Maximum Reach 226.6in
Maximum Reach - Ground Level 220.1in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 100.4in
O/A Undercarriage Length 101.6in
Overall Shipping Length* 208.9in
Stick Length 53.2in
Swing Bearing - Height 24.4in
Tail Swing with Counterweight 47.2in
Tail Swing without Counterweight 43.1in
Track Belt/Shoe Width 15.7in
Vertical Wall 91.9in
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 Level I
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 4.7psi
Ground Pressure - Minimum Weight 4psi
Maximum Traction Force - High Speed 5553lbf
Maximum Traction Force - Low Speed 11353lbf
Travel Speed - High 3.1mile/h
Travel Speed - Low 1.7mile/h
Angle Blade - Left 25 degrees
Angle Blade - Right 25 degrees
Angle Blade Height 15.7in
Angle Blade Width 78in
Straight Blade Height 15.4in
Straight Blade Width 78in
Boom Swing - Left 72 Degrees
Boom Swing - Right 50 Degrees
Machine Swing Speed 9r/min
Cooling System 2.9gal (US)
Engine Oil 1.6gal (US)
Fuel Tank 17gal (US)
Hydraulic System 20gal (US)
Hydraulic Tank 16gal (US)
Recyclability 96%
Average Exterior Sound Pressure (ISO 6395:2008) 99dB(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 a
Operator Sound Pressure (ISO 6396:2008) 72dB(A)
Auxiliary Circuit - Primary - Flow 21gal/min
Auxiliary Circuit - Primary - Pressure 3843psi
Auxiliary Circuit - Secondary - Flow 7gal/min
Auxiliary Circuit - Secondary - Pressure 3843psi
Digging Force - Bucket 11061lbf
Digging Force - Stick - Long 5665lbf
Digging Force - Stick - Standard 6362lbf
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure - Equipment 3843psi
Operating Pressure - Swing 2901psi
Operating Pressure - Travel 3843psi
Pump Flow at 2,400 rpm 35gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Angle Blade 225lb
Counterweight 534lb
Long Stick 75lb
Steel Tracks with Pads 827lb
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
Smart Tech Electronic Pump
Accumulator
Automatic Swing Brake
Auxiliary Hydraulic Lines
One and Two Way Auxiliary Flow
Continuous Auxiliary Flow
Auxiliary Line Quick Disconnects
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)
Rubber Belt (400 mm/15.7 in)
Dozer Straight Blade
Dozer Blade Float
Tie Downs on Track Frame
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
12 Volt Battery
Software (machine and monitor)
Maintenance Free Battery
Battery Disconnect
12 Volt Power Socket
Travel Alarm (optional in some regions)
Steel Track (400 mm/15.7 in)
Steel Track with Rubber Pads
Angle Blade
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
Product Link™ PL243 (regulations apply)
Product Link PLE643 (regulations apply)
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)
Bio Oil Capable
Eco Drain
Water Jacket Heater
Counterweight (242 kg/534 lb)
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
