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305 CR

305 CR - 2021, Tier 4 Final, N Am

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.

Specifications

Units: 
Net Power
Operating Weight
Dig Depth
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Benefits & Features

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!

  April 10, 2024

Specifications

Units: 
Engine
Net Power
Engine Model C1.7 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
Note Advertised power is tested per the specified standard in effect at the time of manufacture.
Gross Power - 2,400 rpm - SAE J1995:2014
Stroke
Bore
Displacement
Emissions The Cat® C3.3B engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Weights
Operating Weight
Minimum Operating Weight with Canopy*
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*
Maximum Operating Weight with Cab**
Maximum Operating Weight with Canopy**
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
Stick Length
Track Width
Maximum Blade Depth
Maximum Dump Clearance
Boom Swing - Left
Boom Swing - Right
Swing Bearing - Height
Boom Height - Shipping Position
Boom In Reach
Maximum Reach
Track Belt/Shoe Width
Maximum Reach - Ground Level
Maximum Blade Height
O/A Shipping Height
Tail Swing without Counterweight
O/A Undercarriage Length
Tail Swing with Counterweight
Vertical Wall
Note *Overall Shipping Length depends on blade position during shipment.
Overall Shipping Length*
Maximum Dig Height
Ground Clearance
Swing System
Boom Swing - Left 72 Degrees
Machine Swing Speed
Boom Swing - Right 50 Degrees
Dimensions - Standard Stick
Maximum Dig Height
Maximum Blade Height
Dig Depth
Boom Swing - Right
Maximum Reach - Ground Level
Tail Swing without Counterweight
Boom Height - Shipping Position
Maximum Blade Depth
Maximum Reach
Boom Swing - Left
Overall Shipping Length*
O/A Undercarriage Length
Swing Bearing - Height
Stick Length
Track Belt/Shoe Width
Boom In Reach
Vertical Wall
Tail Swing with Counterweight
Maximum Dump Clearance
O/A Shipping Height
Note *Overall Shipping Length depends on blade position during shipment.
Ground Clearance
Service Refill Capacities
Hydraulic Tank
Fuel Tank
Engine Oil
Hydraulic System
Cooling System
Travel System
Ground Pressure - Minimum Weight
Maximum Traction Force - Low Speed
Ground Pressure - Maximum Weight
Travel Speed - Low
Maximum Traction Force - High Speed
Travel Speed - High
Gradeability - Maximum 30 degrees
Blade
Angle Blade Width
Straight Blade Height
Straight Blade Width
Angle Blade Height
Angle Blade - Left 25 degrees
Angle Blade - Right 25 degrees
Sound
Average Exterior Sound Pressure (ISO 6395:2008)
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)
Hydraulic System
Auxiliary Circuit - Secondary - Pressure
Pump Flow at 2,400 rpm
Operating Pressure - Swing
Operating Pressure - Travel
Auxiliary Circuit - Secondary - Flow
Digging Force - Stick - Standard
Auxiliary Circuit - Primary - Pressure
Auxiliary Circuit - Primary - Flow
Digging Force - Bucket
Operating Pressure - Equipment
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
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
Long Stick
Steel Tracks with Pads
Angle Blade
Sustainability
Recyclability 96%

Benefits & Features

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. Dozer 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.

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)<br>– Fuel Level and Coolant Temperature Gauges<br>– Maintenance and Machine Monitoring<br>– Performance and Machine Adjustments<br>– Numeric Security Code<br>– Multiple Languages<br>– Hour Meter with Wake Up Switch<br>– 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<br>– Touch Screen<br>– Site Reference System<br>– High Definition Camera Capable (IP68 and IP69K)<br>– Numeric Security Code
    • Seat Belt Reminder System
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D

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