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305 CR Mini Excavator

305 CR Mini Hydraulic Excavator

Overview

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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ALL DAY COMFORT

Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.

STICK STEER TRAVEL MODE

Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A COMPACT DESIGN

Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dig-to-blade and dozer blade float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.

SAFETY ON THE JOB SITE

Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt with optional seat belt reminder system are just a couple of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.

LOWER OPERATING COSTS

Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

UNMATCHED DEALER SUPPORT

Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

Engine

Net Power: 45hp
Engine Model: C1.7 Turbo
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.
Gross Power - 2,400 rpm - SAE J1995:2014: 48.4hp
Stroke: 3.9in
Bore: 3.3in
Displacement: 101in³
Emissions: The Cat® C1.7 engine 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 the rated speed of 2400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.

Weights

Operating Weight: 12688lb
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.

Dimensions - Long Stick

Dig Depth: 144.5in
Stick Length: 63in
Track Width: 78in
Maximum Blade Depth: 23.4in
Maximum Dump Clearance: 151.4in
Boom Swing - Left: 615mm
Boom Swing - Right: 34.1°
Swing Bearing - Height: 24.4in
Boom Height - Shipping Position: 74.6in
Boom In Reach: 101.6in
Maximum Reach: 235.8in
Track Belt/Shoe Width: 15.7in
Maximum Reach - Ground Level: 229.7in
Maximum Blade Height: 15.2in
O/A Shipping Height: 100.4in
Tail Swing without Counterweight: 43.1in
O/A Undercarriage Length: 101.6in
Tail Swing with Counterweight: 47.2in
Vertical Wall: 100.8in
Note: *Overall Shipping Length depends on blade position during shipment.
Overall Shipping Length*: 210.2in
Maximum Dig Height: 210.8in
Ground Clearance: 13.2in

Swing System

Boom Swing - Left: 72 Degrees
Machine Swing Speed: 9r/min
Boom Swing - Right: 50 Degrees

Dimensions - Standard Stick

Maximum Dig Height: 205.3in
Maximum Blade Height: 15.2in
Dig Depth: 134.6in
Boom Swing - Right: 34.1°
Maximum Reach - Ground Level: 220.1in
Tail Swing without Counterweight: 43.1in
Boom Height - Shipping Position: 71.7in
Maximum Blade Depth: 23.4in
Maximum Reach: 226.6in
Boom Swing - Left: 24.2°
Overall Shipping Length*: 208.9in
O/A Undercarriage Length: 101.6in
Swing Bearing - Height: 24.4in
Stick Length: 53.2in
Track Belt/Shoe Width: 15.7in
Boom In Reach: 101.2in
Vertical Wall: 91.9in
Tail Swing with Counterweight: 47.2in
Maximum Dump Clearance: 145.7in
O/A Shipping Height: 100.4in
Note: *Overall Shipping Length depends on blade position during shipment.
Ground Clearance: 13.2in

Service Refill Capacities

Hydraulic Tank: 16gal (US)
Fuel Tank: 17gal (US)
Engine Oil: 1.6gal (US)
Hydraulic System: 20gal (US)
Cooling System: 2.9gal (US)

Travel System

Ground Pressure - Minimum Weight: 4psi
Maximum Traction Force - Low Speed: 11353lbf
Ground Pressure - Maximum Weight: 4.7psi
Travel Speed - Low: 1.7mile/h
Maximum Traction Force - High Speed: 5553lbf
Travel Speed - High: 3.1mile/h
Gradeability - Maximum: 30 degrees

Blade

Angle Blade Width: 78in
Straight Blade Height: 15.4in
Straight Blade Width: 78in
Angle Blade Height: 15.7in
Angle Blade - Left: 25 degrees
Angle Blade - Right: 25 degrees

Sound

Average Exterior Sound Pressure (ISO 6395:2008): 97dB(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): 76dB(A)

Hydraulic System

Auxiliary Circuit - Secondary - Pressure: 3843psi
Pump Flow at 2,400 rpm: 35gal/min
Operating Pressure - Swing: 2901psi
Operating Pressure - Travel: 3843psi
Auxiliary Circuit - Secondary - Flow: 7gal/min
Digging Force - Stick - Standard: 6362lbf
Auxiliary Circuit - Primary - Pressure: 3843psi
Auxiliary Circuit - Primary - Flow: 21gal/min
Digging Force - Bucket: 11061lbf
Operating Pressure - Equipment: 3843psi
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: 5665lbf

Certification - Cab and Canopy

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

Counterweight: 534lb
Long Stick: 75lb
Steel Tracks with Pads: 827lb
Angle Blade: 225lb

Sustainability

Recyclability: 96%

Standard/Optional Features

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
Guarding
- ROPS ISO 12117-2:2008
- Top Guard ISO 10262:1998 (Level I)
Other
- Eco Drain
Operator Environment
- LED Front and Rear Lights
- LED Boom Light
- 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
- Lock Out/Tag Out 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)
Other
- Bio Oil Capable
- 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
- 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
Guarding
- Top Guard ISO 10262:1998 (Level II)
- Front Guard (Mesh) ISO 10262:1998 (Level I)
- Front Guard (Heavy Duty) ISO 10262:1998 (Level II)

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