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
33.6 kW
Operating Weight
5754 kg
Dig Depth
3670 mm
Product specifications for 305 CR Mini Excavators
Engine
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Net Power
33.6 kW
Engine Model
C1.7 Turbo
Displacement
1.662 l
Gross Power – 2,400 rpm – SAE J1995:2014
36.1 kW
Stroke
100 mm
Bore
84 mm
Net Power – 2,400 rpm – ISO 9249, 80/1269/EEC
33.6 kW
Note
Advertised power is tested per the specified standard in effect at the time of manufacture.
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Weights
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Operating Weight
5754 kg
Note (2)
**Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Minimum Operating Weight with Cab*
5105 kg
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 Canopy*
5006 kg
Maximum Operating Weight with Canopy**
5665 kg
Maximum Operating Weight with Cab**
5764 kg
Dimensions – Long Stick
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Dig Depth
3670 mm
Maximum Reach
5990 mm
O/A Shipping Height
2550 mm
Vertical Wall
2560 mm
Track Width
1980 mm
Overall Shipping Length*
5340 mm
Maximum Dump Clearance
3845 mm
Tail Swing with Counterweight
1200 mm
Boom Swing – Right
865 mm
Boom Swing – Left
24.2 °
Tail Swing without Counterweight
1095 mm
Track Belt/Shoe Width
400 mm
Maximum Reach – Ground Level
5835 mm
Stick Length
1601 mm
Swing Bearing – Height
619 mm
O/A Undercarriage Length
2580 mm
Boom In Reach
2580 mm
Maximum Blade Depth
650 mm
Maximum Blade Height
400 mm
Maximum Dig Height
5355 mm
Boom Height – Shipping Position
1895 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Ground Clearance
335 mm
Service Refill Capacities
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Hydraulic Tank
60 l
Engine Oil
6 l
Hydraulic System
75 l
Fuel Tank
68 l
Cooling System
11 l
Swing System
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Boom Swing – Left
72 Degrees
Machine Swing Speed
9 r/min
Boom Swing – Right
50 Degrees
Hydraulic System
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Digging Force – Bucket
49.2 kN
Auxiliary Circuit – Secondary – Pressure
265 bar
Operating Pressure – Equipment
265 bar
Auxiliary Circuit – Secondary – Flow
28 l/min
Operating Pressure – Travel
265 bar
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force – Stick – Standard
28.3 kN
Auxiliary Circuit – Primary – Pressure
265 bar
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm
133 l/min
Auxiliary Circuit – Primary – Flow
80 l/min
Operating Pressure – Swing
200 bar
Digging Force – Stick – Long
25.2 kN
Dimensions – Standard Stick
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Tail Swing without Counterweight
1095 mm
Boom Swing – Left
615 mm
Boom Swing – Right
865 mm
Maximum Dig Height
5215 mm
Vertical Wall
2335 mm
Maximum Blade Height
400 mm
Swing Bearing – Height
619 mm
Boom Height – Shipping Position
1820 mm
Overall Shipping Length*
5305 mm
O/A Shipping Height
2550 mm
Dig Depth
3420 mm
Maximum Reach – Ground Level
5590 mm
Maximum Dump Clearance
3700 mm
Maximum Reach
5755 mm
Boom In Reach
2570 mm
Maximum Blade Depth
650 mm
Note
*Overall Shipping Length depends on blade position during shipment.
O/A Undercarriage Length
2580 mm
Track Belt/Shoe Width
400 mm
Stick Length
1351 mm
Tail Swing with Counterweight
1200 mm
Ground Clearance
335 mm
Travel System
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Maximum Traction Force – High Speed
24.7 kN
Travel Speed – High
5 km/h
Travel Speed – Low
2.8 km/h
Ground Pressure – Maximum Weight
32.2 kPa
Gradeability – Maximum
30 degrees
Ground Pressure – Minimum Weight
27.3 kPa
Maximum Traction Force – Low Speed
50.5 kN
Weight Increase from Minimum Configuration
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Counterweight
242 kg
Angle Blade
92 kg
Long Stick
34 kg
Steel Tracks with Pads
375 kg
Blade
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Angle Blade – Right
25 degrees
Angle Blade Width
1980 mm
Angle Blade Height
400 mm
Straight Blade Width
1980 mm
Straight Blade Height
390 mm
Angle Blade – Left
25 degrees
Certification – Cab and Canopy
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Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 Level I
Sound
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Operator Sound Pressure (ISO 6396:2008)
76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A)
Note
European Union Directive “2000/14/EC”
Sustainability
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Recyclability
96%
ALL DAY COMFORT
Choose either a canopy (not available in some regions) 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.
SUSTAINABILITY
The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
305 CR Standard Equipment
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GUARDING
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ROPS ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
ENGINE
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Cat® C1.7 Turbo Engine (EU Stage V)
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
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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
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Canopy or Cab (Canopy not available in some regions)
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
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Rubber Belt (400 mm/15.7 in)
Dozer Straight Blade
Dozer Blade Float
Tie Downs on Track Frame
BOOM, STICK AND LINKAGES
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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
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12 Volt Battery
Software (machine and monitor)
Maintenance Free Battery
Battery Disconnect
12 Volt Power Socket
Travel Alarm (optional in some regions)
305 CR Optional Equipment
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OPERATOR ENVIRONMENT
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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 3D
Cat Grade with Advanced 2D
UNDERCARRIAGE
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Steel Track (400 mm/15.7 in)
Steel Track with Rubber Pads
Angle Blade
BOOM, STICK AND LINKAGES
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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
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Product Link™ PL243 (regulations apply)
Product Link PLE643 (regulations apply)
GUARDING
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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
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Bio Oil Capable
Eco Drain
Water Jacket Heater
Counterweight (242 kg/534 lb)
