305 CR - Tier 4 / Stage V
305 CR Mini Hydraulic Excavator
The 305 CR Mini Excavator delivers power and performance in a 5 ton size class to help you work in a wide range of applications.
DESCRIPTION
The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.See the new Cat 304 and 305 CR Mini Excavators in action.
Learn about the features and benefits of the new Cat 304 and 305 CR Mini Excavators.
Easy to read monitor lets you adjust machine settings to your operating preference.
Learn about the the differences between the Next Generation Cat 304 and 305 CR Mini Excavators vs the E2 Series.
Learn about the Advanced Monitor available for the Next Generation Cat Mini Excavators.
Hear what our customers think about the Cat 305 CR Mini Excavator.
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.
- Standard Equipment
- Optional Equipment
- Specs
- Docs
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)
Specs
Overview
Long Name:
305 CR Mini Hydraulic Excavator
Name:
305 CR - Tier 4 / Stage V
Brand:
Caterpillar
Status:
Current
Engine
Net Power
45 hp / 33.6 kW
Engine Model
C1.7 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
45 hp / 33.6 kW
Gross Power - 2,400 rpm - SAE J1995:2014
48.4 hp / 36.1 kW
Bore
3.3 in / 84 mm
Stroke
3.9 in / 100 mm
Displacement
101 in³ / 1.662 l
Emissions
The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note
Advertised power is tested per the specified standard in effect at the time of manufacture.
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
12688 lb / 5754 kg
Minimum Operating Weight with Canopy*
11016 lb / 4996 kg
Maximum Operating Weight with Canopy**
12469 lb / 5655 kg
Minimum Operating Weight with Cab*
11234 lb / 5095 kg
Maximum Operating Weight with Cab**
12688 lb / 5754 kg
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.
Weight Increase from Minimum Configuration
Counterweight
534 lb / 242 kg
Long Stick
75 lb / 34 kg
Steel Tracks with Pads
827 lb / 375 kg
Angle Blade
225 lb / 102 kg
Travel System
Travel Speed - High
3.1 mile/h / 5 km/h
Travel Speed - Low
1.7 mile/h / 2.8 km/h
Maximum Traction Force - High Speed
5553 lbf / 24.7 kN
Maximum Traction Force - Low Speed
11353 lbf / 50.5 kN
Ground Pressure - Minimum Weight
4 psi / 27.3 kPa
Ground Pressure - Maximum Weight
4.7 psi / 32.2 kPa
Gradeability - Maximum
30 degrees
Service Refill Capacities
Cooling System
2.9 gal (US) / 11 l
Engine Oil
1.6 gal (US) / 6 l
Fuel Tank
17 gal (US) / 63 l
Hydraulic Tank
16 gal (US) / 60 l
Hydraulic System
20 gal (US) / 75 l
Hydraulic System
Pump Flow at 2,400 rpm
35 gpm / 133 L/min
Operating Pressure - Equipment
3843 psi / 265 bar
Operating Pressure - Travel
3843 psi / 265 bar
Operating Pressure - Swing
2901 psi / 200 bar
Auxiliary Circuit - Primary - Flow
21 gpm / 80 L/min
Auxiliary Circuit - Primary - Pressure
3843 psi / 265 bar
Auxiliary Circuit - Secondary - Flow
7 gpm / 28 L/min
Auxiliary Circuit - Secondary - Pressure
3843 psi / 265 bar
Digging Force - Stick - Standard
6362 lbf / 28.3 kN
Digging Force - Stick - Long
5665 lbf / 25.2 kN
Digging Force - Bucket
11061 lbf / 49.2 kN
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Swing System
Machine Swing Speed
9 r/min / 9 r/min
Boom Swing - Left
72 Degrees
Boom Swing - Right
50 Degrees
Blade
Straight Blade Width
78 in / 1980 mm
Straight Blade Height
15.4 in / 390 mm
Angle Blade Width
78 in / 1980 mm
Angle Blade Height
15.7 in / 400 mm
Angle Blade - Left
25 degrees
Angle Blade - Right
25 degrees
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 Level I
Dimensions - Standard Stick
Dig Depth
134.6 in / 3420 mm
Vertical Wall
91.9 in / 2335 mm
Maximum Reach - Ground Level
220.1 in / 5590 mm
Maximum Reach
226.6 in / 5755 mm
Maximum Dig Height
205.3 in / 5215 mm
Maximum Dump Clearance
145.7 in / 3700 mm
Boom In Reach
101.2 in / 2570 mm
Tail Swing without Counterweight
43.1 in / 1095 mm
Tail Swing with Counterweight
47.2 in / 1200 mm
Maximum Blade Height
15.2 in / 385 mm
Maximum Blade Depth
23.4 in / 595 mm
Boom Height - Shipping Position
71.7 in / 1820 mm
O/A Shipping Height
100.4 in / 2550 mm
Swing Bearing - Height
24.4 in / 619 mm
O/A Undercarriage Length
101.6 in / 2580 mm
Overall Shipping Length*
208.9 in / 5305 mm
Boom Swing - Right
34.1 ° / 865 mm
Boom Swing - Left
24.2 ° / 615 mm
Track Belt/Shoe Width
15.7 in / 400 mm
Track Width
78 in / 1980 mm
Ground Clearance
13.2 in / 335 mm
Stick Length
53.2 in / 1351 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Dimensions - Long Stick
Dig Depth
144.5 in / 3670 mm
Vertical Wall
100.8 in / 2560 mm
Maximum Reach - Ground Level
229.7 in / 5835 mm
Maximum Reach
235.8 in / 5990 mm
Maximum Dig Height
210.8 in / 5355 mm
Maximum Dump Clearance
151.4 in / 3845 mm
Boom In Reach
101.6 in / 2580 mm
Tail Swing without Counterweight
43.1 in / 1095 mm
Tail Swing with Counterweight
47.2 in / 1200 mm
Maximum Blade Height
15.2 in / 385 mm
Maximum Blade Depth
23.4 in / 595 mm
Boom Height - Shipping Position
74.6 in / 1895 mm
O/A Shipping Height
100.4 in / 2550 mm
Swing Bearing - Height
24.4 in / 619 mm
O/A Undercarriage Length
101.6 in / 2580 mm
Overall Shipping Length*
210.2 in / 5340 mm
Boom Swing - Right
34.1 ° / 865 mm
Boom Swing - Left
615 mm / 24.2 °
Track Belt/Shoe Width
15.7 in / 400 mm
Track Width
78 in / 1980 mm
Ground Clearance
13.2 in / 335 mm
Stick Length
63 in / 1601 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Air Conditioning System
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
Sound
Operator Sound Pressure (ISO 6396:2008)
76 dB(A) / 76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A) / 97 dB(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 and conditions specified in 2000/14/EC.
Sustainability
Recyclability
96%
SEE HOW 305 CR – Tier 4 / Stage V COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
Mini Excavators
305 CR – Tier 4 / Stage V
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 45 hp / 33.6 kW
- Engine Model
- C1.7 Turbo
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Displacement
- 101 in³ / 1.662 l
- 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.
- 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
- 12688 lb / 5754 kg
- Minimum Operating Weight with Canopy*
- 11016 lb / 4996 kg
- Maximum Operating Weight with Canopy**
- 12469 lb / 5655 kg
- Minimum Operating Weight with Cab*
- 11234 lb / 5095 kg
- Maximum Operating Weight with Cab**
- 12688 lb / 5754 kg
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
- Counterweight
- 534 lb / 242 kg
- Long Stick
- 75 lb / 34 kg
- Angle Blade
- 225 lb / 102 kg
- Travel Speed - High
- 3.1 mile/h / 5 km/h
- Travel Speed - Low
- 1.7 mile/h / 2.8 km/h
- Maximum Traction Force - High Speed
- 5553 lbf / 24.7 kN
- Maximum Traction Force - Low Speed
- 11353 lbf / 50.5 kN
- Ground Pressure - Minimum Weight
- 4 psi / 27.3 kPa
- Ground Pressure - Maximum Weight
- 4.7 psi / 32.2 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 2.9 gal (US) / 11 l
- Engine Oil
- 1.6 gal (US) / 6 l
- Fuel Tank
- 17 gal (US) / 63 l
- Hydraulic Tank
- 16 gal (US) / 60 l
- Hydraulic System
- 20 gal (US) / 75 l
- Pump Flow at 2,400 rpm
- 35 gpm / 133 L/min
- Operating Pressure - Equipment
- 3843 psi / 265 bar
- Operating Pressure - Travel
- 3843 psi / 265 bar
- Operating Pressure - Swing
- 2901 psi / 200 bar
- Auxiliary Circuit - Primary - Flow
- 21 gpm / 80 L/min
- Auxiliary Circuit - Primary - Pressure
- 3843 psi / 265 bar
- Auxiliary Circuit - Secondary - Flow
- 7 gpm / 28 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3843 psi / 265 bar
- Digging Force - Stick - Standard
- 6362 lbf / 28.3 kN
- Digging Force - Stick - Long
- 5665 lbf / 25.2 kN
- Digging Force - Bucket
- 11061 lbf / 49.2 kN
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Machine Swing Speed
- 9 r/min / 9 r/min
- Boom Swing - Left
- 615 mm / 24.2 °
- Boom Swing - Right
- 34.1 ° / 865 mm
- Straight Blade Width
- 78 in / 1980 mm
- Straight Blade Height
- 15.4 in / 390 mm
- Angle Blade Width
- 78 in / 1980 mm
- Angle Blade Height
- 15.7 in / 400 mm
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 Level I
- Dig Depth
- 144.5 in / 3670 mm
- Vertical Wall
- 100.8 in / 2560 mm
- Maximum Reach - Ground Level
- 229.7 in / 5835 mm
- Maximum Reach
- 235.8 in / 5990 mm
- Maximum Dig Height
- 210.8 in / 5355 mm
- Maximum Dump Clearance
- 151.4 in / 3845 mm
- Boom In Reach
- 101.6 in / 2580 mm
- Tail Swing without Counterweight
- 43.1 in / 1095 mm
- Tail Swing with Counterweight
- 47.2 in / 1200 mm
- Maximum Blade Height
- 15.2 in / 385 mm
- Maximum Blade Depth
- 23.4 in / 595 mm
- Swing Bearing - Height
- 24.4 in / 619 mm
- O/A Undercarriage Length
- 101.6 in / 2580 mm
- Track Belt/Shoe Width
- 15.7 in / 400 mm
- Ground Clearance
- 13.2 in / 335 mm
- Stick Length
- 63 in / 1601 mm
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A) / 76 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A) / 97 dB(A)
- Recyclability
- 96%
Selected Model
Mini Excavators
304
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 45 hp / 33.6 kW
- Engine Model
- C1.7 Turbo
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Displacement
- 101 in³ / 1.662 l
- Note
- European Union Directive “2000/14/EC”
- Note (2)
- **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
- Operating Weight
- 9867 lb / 4475 kg
- Minimum Operating Weight with Canopy*
- 8655 lb / 3925 kg
- Maximum Operating Weight with Canopy**
- 9647 lb / 4375 kg
- Minimum Operating Weight with Cab*
- 8875 lb / 4025 kg
- Maximum Operating Weight with Cab**
- 9867 lb / 4475 kg
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
- Counterweight
- 496 lb / 225 kg
- Long Stick
- 66 lb / 30 kg
- Angle Blade
- 243 lb / 110 kg
- Travel Speed - High
- 3.2 mile/h / 5.2 km/h
- Travel Speed - Low
- 2.2 mile/h / 3.5 km/h
- Maximum Traction Force - High Speed
- 4271 lbf / 19 kN
- Maximum Traction Force - Low Speed
- 7329 lbf / 32.6 kN
- Ground Pressure - Minimum Weight
- 4.2 psi / 28.7 kPa
- Ground Pressure - Maximum Weight
- 4.9 psi / 33.8 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 2.9 gal (US) / 11 l
- Engine Oil
- 1.6 gal (US) / 6 l
- Fuel Tank
- 17 gal (US) / 63 l
- Hydraulic Tank
- 14 gal (US) / 52 l
- Hydraulic System
- 17 gal (US) / 65 l
- Pump Flow at 2,400 rpm
- 25 gpm / 96 L/min
- Operating Pressure - Equipment
- 3553 psi / 245 bar
- Operating Pressure - Travel
- 3553 psi / 245 bar
- Operating Pressure - Swing
- 2611 psi / 180 bar
- Auxiliary Circuit - Primary - Flow
- 21 gpm / 65 L/min
- Auxiliary Circuit - Primary - Pressure
- 3553 psi / 245 bar
- Auxiliary Circuit - Secondary - Flow
- 7 gpm / 28 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3553 psi / 245 bar
- Digging Force - Stick - Standard
- 4721 lbf / 21 kN
- Digging Force - Stick - Long
- 4316 lbf / 19.2 kN
- Digging Force - Bucket
- 8588 lbf / 38.2 kN
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Machine Swing Speed
- 9 r/min / 9 r/min
- Boom Swing - Left
- 20.9 in / 530 mm
- Boom Swing - Right
- 28.7 in / 730 mm
- Straight Blade Width
- 66.9 in / 1700 mm
- Straight Blade Height
- 14.2 in / 360 mm
- Angle Blade Width
- 66.9 in / 1700 mm
- Angle Blade Height
- 14.2 in / 360 mm
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 (Level I)
- Dig Depth
- 138.2 in / 3510 mm
- Vertical Wall
- 99.8 in / 2535 mm
- Maximum Reach - Ground Level
- 214.4 in / 5445 mm
- Maximum Reach
- 219.3 in / 5570 mm
- Maximum Dig Height
- 201.8 in / 5125 mm
- Maximum Dump Clearance
- 147.2 in / 3740 mm
- Boom In Reach
- 92.1 in / 2340 mm
- Tail Swing without Counterweight
- 47.4 in / 1205 mm
- Tail Swing with Counterweight
- 51.2 in / 1300 mm
- Maximum Blade Height
- 16.5 in / 420 mm
- Maximum Blade Depth
- 18.7 in / 475 mm
- Swing Bearing - Height
- 21.9 in / 557 mm
- O/A Undercarriage Length
- 87 in / 2210 mm
- Track Belt/Shoe Width
- 13.8 in / 350 mm
- Ground Clearance
- 12 in / 305 mm
- Stick Length
- 66.7 in / 1695 mm
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A) / 76 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A) / 97 dB(A)
- Recyclability
- 96%
Mini Excavators
306 CR
- Brand
- Caterpillar
- Status
- Current
- Net Power
- 55.9 hp / 41.7 kW
- Engine Model
- Cat C2.4 Turbo
- Bore
- 3.4 in / 87 mm
- Stroke
- 4 in / 102.4 mm
- Displacement
- 148 in³ / 2.43 l
- Note
- European Union Directive “2000/14/EC”
- Note (2)
- **Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
- Operating Weight
- 15766 lb / 7150 kg
- Minimum Operating Weight with Canopy*
- 14134 lb / 6410 kg
- Maximum Operating Weight with Canopy**
- 15633 lb / 7090 kg
- Minimum Operating Weight with Cab*
- 14266 lb / 6470 kg
- Maximum Operating Weight with Cab**
- 15766 lb / 7150 kg
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
- Counterweight
- 551 lb / 250 kg
- Long Stick
- 97 lb / 44 kg
- Angle Blade
- 225 lb / 102 kg
- Travel Speed - High
- 3.1 mile/h / 5 km/h
- Travel Speed - Low
- 1.7 mile/h / 2.8 km/h
- Maximum Traction Force - High Speed
- 6969 lbf / 31 kN
- Maximum Traction Force - Low Speed
- 12589 lbf / 56 kN
- Ground Pressure - Minimum Weight
- 5.1 psi / 35.4 kPa
- Ground Pressure - Maximum Weight
- 5.7 psi / 39.1 kPa
- Gradeability - Maximum
- 30 degrees
- Cooling System
- 2.6 gal (US) / 10 l
- Engine Oil
- 2.1 gal (US) / 8 l
- Fuel Tank
- 34.3 gal (US) / 130 l
- Hydraulic Tank
- 14 gal (US) / 53 l
- Hydraulic System
- 27.5 gal (US) / 104 l
- Pump Flow at 2,400 rpm
- 40 gpm / 151 L/min
- Operating Pressure - Equipment
- 3553 psi / 24500 kPa
- Operating Pressure - Travel
- 3553 psi / 24500 kPa
- Operating Pressure - Swing
- 3263 psi / 22500 kPa
- Auxiliary Circuit - Primary - Flow
- 24 gpm / 90 L/min
- Auxiliary Circuit - Primary - Pressure
- 3553 psi / 24500 kPa
- Auxiliary Circuit - Secondary - Flow
- 9 gpm / 33 L/min
- Auxiliary Circuit - Secondary - Pressure
- 3553 psi / 24500 kPa
- Digging Force - Stick - Standard
- 6632 lbf / 29.5 kN
- Digging Force - Stick - Long
- 5957 lbf / 26.5 kN
- Digging Force - Bucket
- 11578 lbf / 51.5 kN
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Machine Swing Speed
- 11 r/min / 11 r/min
- Boom Swing - Left
- 29 in / 735 mm
- Boom Swing - Right
- 36 in / 910 mm
- Straight Blade Width
- 78 in / 1980 mm
- Straight Blade Height
- 15.4 in / 390 mm
- Angle Blade Width
- 78 in / 1980 mm
- Angle Blade Height
- 15.7 in / 400 mm
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 (Level II)
- Dig Depth
- 162 in / 4110 mm
- Vertical Wall
- 125 in / 3165 mm
- Maximum Reach - Ground Level
- 257 in / 6535 mm
- Maximum Reach
- 263 in / 6685 mm
- Maximum Dig Height
- 241 in / 6130 mm
- Maximum Dump Clearance
- 182 in / 4610 mm
- Boom In Reach
- 117 in / 2960 mm
- Tail Swing without Counterweight
- 53 in / 1350 mm
- Tail Swing with Counterweight
- 58 in / 1475 mm
- Maximum Blade Height
- 16 in / 415 mm
- Maximum Blade Depth
- 24 in / 600 mm
- Swing Bearing - Height
- 27 in / 672 mm
- O/A Undercarriage Length
- 102 in / 2580 mm
- Track Belt/Shoe Width
- 16 in / 400 mm
- Ground Clearance
- 12 in / 306 mm
- Stick Length
- 78 in / 1980 mm
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
- Operator Sound Pressure (ISO 6396:2008)
- 72 dB(A) / 72 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 99 dB(A) / 99 dB(A)
- Recyclability
- 96%
