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305 CR Mini Hydraulic Excavator

305 CR Mini Hydraulic Excavator

The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

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Net Power45HP

Engine ModelC1.7 Turbo

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC45HP

NoteAdvertised power is tested per the specified standard in effect at the time of manufacture.

Gross Power - 2,400 rpm - SAE J1995:201448.4HP




EmissionsThe Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Operating Weight12688lb

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.

Minimum Operating Weight with Cab*11234lb

Maximum Operating Weight with Cab**12688lb

Maximum Operating Weight with Canopy**12469lb

Note (2)**Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

Dig Depth144.5in

Stick Length63in

Track Width78in

Maximum Blade Depth23.4in

Maximum Dump Clearance151.4in

Boom Swing - Left615mm

Boom Swing - Right34.1°

Swing Bearing - Height24.4in

Boom Height - Shipping Position74.6in

Boom In Reach101.6in

Maximum Reach235.8in

Track Belt/Shoe Width15.7in

Maximum Reach - Ground Level229.7in

Maximum Blade Height15.2in

O/A Shipping Height100.4in

Tail Swing without Counterweight43.1in

O/A Undercarriage Length101.6in

Tail Swing with Counterweight47.2in

Vertical Wall100.8in

Note*Overall Shipping Length depends on blade position during shipment.

Overall Shipping Length*210.2in

Maximum Dig Height210.8in

Ground Clearance13.2in

Boom Swing - Left72 Degrees

Machine Swing Speed9r/min

Boom Swing - Right50 Degrees

Maximum Dig Height205.3in

Maximum Blade Height15.2in

Dig Depth134.6in

Boom Swing - Right34.1°

Maximum Reach - Ground Level220.1in

Tail Swing without Counterweight43.1in

Boom Height - Shipping Position71.7in

Maximum Blade Depth23.4in

Maximum Reach226.6in

Boom Swing - Left24.2°

Overall Shipping Length*208.9in

O/A Undercarriage Length101.6in

Swing Bearing - Height24.4in

Stick Length53.2in

Track Belt/Shoe Width15.7in

Boom In Reach101.2in

Vertical Wall91.9in

Tail Swing with Counterweight47.2in

Maximum Dump Clearance145.7in

O/A Shipping Height100.4in

Note*Overall Shipping Length depends on blade position during shipment.

Ground Clearance13.2in

Hydraulic Tank16gal (US)

Fuel Tank17gal (US)

Engine Oil1.6gal (US)

Hydraulic System20gal (US)

Cooling System2.9gal (US)

Ground Pressure - Minimum Weight4psi

Maximum Traction Force - Low Speed11353lbf

Ground Pressure - Maximum Weight4.7psi

Travel Speed - Low1.7mile/h

Maximum Traction Force - High Speed5553lbf

Travel Speed - High3.1mile/h

Gradeability - Maximum30 degrees

Angle Blade Width78in

Straight Blade Height15.4in

Straight Blade Width78in

Angle Blade Height15.7in

Angle Blade - Left25 degrees

Angle Blade - Right25 degrees

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 - Secondary - Pressure3843psi

Pump Flow at 2,400 rpm35gal/min

Operating Pressure - Swing2901psi

Operating Pressure - Travel3843psi

Auxiliary Circuit - Secondary - Flow7gal/min

Digging Force - Stick - Standard6362lbf

Auxiliary Circuit - Primary - Pressure3843psi

Auxiliary Circuit - Primary - Flow21gal/min

Digging Force - Bucket11061lbf

Operating Pressure - Equipment3843psi

NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.

TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump

Digging Force - Stick - Long5665lbf

Top GuardISO 10262:1998 Level I

Roll Over Protective Structure (ROPS)ISO 12117-2:2008

Tip Over Protective Structure (TOPS)ISO 12117:1997


Long Stick75lb

Steel Tracks with Pads827lb

Angle Blade225lb



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


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


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)


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


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


Rubber Belt (400 mm/15.7 in)

Dozer Straight Blade

Dozer Blade Float

Tie Downs on Track Frame


Steel Track (400 mm/15.7 in)

Steel Track with Rubber Pads

Angle Blade


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


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


12 Volt Battery

Software (machine and monitor)

Maintenance Free Battery

Battery Disconnect

12 Volt Power Socket

Travel Alarm (optional in some regions)


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)

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See Available Used options



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