306 CR Mini Hydraulic Excavator
Overview
The Cat® 306 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
Engine
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Net Power |
55.9HP |
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 |
55.9HP |
Stroke |
4in |
Bore |
3.4in |
Displacement |
148in³ |
Engine Model |
Cat C2.4 Turbo |
Gross Power - ISO 14396 |
57.9HP |
Dimensions - Long Stick
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Dig Depth |
162in |
Maximum Blade Height |
16in |
O/A Track Width |
78in |
Track Belt/Shoe Width |
16in |
Tail Swing with Counterweight |
58in |
Vertical Wall |
125in |
Boom In Reach |
117in |
Maximum Blade Depth |
24in |
Maximum Dig Height |
241in |
Transport Height |
95in |
Stick Length |
78in |
Ground Clearance |
12in |
Swing Bearing - Height |
27in |
Width over Upper House |
77in |
O/A Undercarriage Length |
102in |
O/A Shipping Length |
234in |
Cab Height |
100in |
Maximum Reach |
263in |
Boom Swing - Left |
29in |
Tail Swing without Counterweight |
53in |
Boom Swing - Right |
36in |
Maximum Dump Clearance |
182in |
Maximum Reach - Ground Level |
257in |
Dimensions - Standard Stick
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Stick Length |
62in |
Maximum Reach |
248in |
Track Belt/Shoe Width |
16in |
Vertical Wall |
107in |
Swing Bearing - Height |
27in |
Maximum Reach - Ground Level |
241in |
Maximum Blade Height |
16in |
Ground Clearance |
12in |
Boom In Reach |
98in |
Boom Swing - Right |
36in |
Transport Height |
69in |
Tail Swing with Counterweight |
58in |
Cab Height |
100in |
Width over Upper House |
77in |
Maximum Dump Clearance |
170in |
Tail Swing without Counterweight |
53in |
Boom Swing - Left |
29in |
O/A Undercarriage Length |
102in |
Maximum Dig Height |
230in |
Maximum Blade Depth |
24in |
O/A Track Width |
78in |
Dig Depth |
146in |
O/A Shipping Length |
235in |
Sound
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Note |
European Union Directive “2000/14/EC” |
Average Exterior Sound Pressure (ISO 6395:2008) |
99dB(A) |
Operator Sound Pressure (ISO 6396:2008) |
72dB(A) |
Certification - Cab
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Tip Over Protective Structure (TOPS) |
ISO 12117:1997 |
Roll Over Protective Structure (ROPS) |
ISO 12117-2:2008 |
Top Guard |
ISO 10262:1998 (Level II) |
Travel System
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Maximum Traction Force - High Speed |
6969lbf |
Gradeability - Maximum |
30 degrees |
Ground Pressure - Maximum Weight |
5.7psi |
Ground Pressure - Minimum Weight |
5.1psi |
Maximum Traction Force - Low Speed |
12589lbf |
Travel Speed - High |
3.1mile/h |
Travel Speed - Low |
1.7mile/h |
Weight Increase from Minimum Configuration
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Angle Blade |
225lb |
XTC Carriage (no tool) |
141lb |
Steel Tracks with Pads |
827lb |
Long Stick |
97lb |
Counterweight |
551lb |
Blade
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Straight Blade Height |
15.4in |
Angle Blade Height |
15.7in |
Angle Blade Width |
78in |
Straight Blade Width |
78in |
Swing System
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Machine Swing Speed |
11r/min |
Boom Swing - Left |
60 degrees |
Boom Swing - Right |
65 degrees |
Hydraulic System
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Pump Flow at 2,400 rpm |
40gal/min |
Digging Force - Stick - Long |
5957lbf |
Operating Pressure - Swing |
3263psi |
Digging Force - Stick - Standard |
6632lbf |
Operating Pressure - Equipment |
3553psi |
Auxiliary Circuit - Secondary - Pressure |
3553psi |
Auxiliary Circuit - Secondary - Flow |
9gal/min |
Type |
Load Sensing Hydraulics with Variable Displacement Piston Pump |
Auxiliary Circuit - Primary - Pressure |
3553psi |
Digging Force - Bucket |
11578lbf |
Auxiliary Circuit - Primary - Flow |
24gal/min |
Operating Pressure - Travel |
3553psi |
Service Refill Capacities
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Fuel Tank |
34.3gal (US) |
Engine Oil |
2.1gal (US) |
Hydraulic Tank |
14gal (US) |
Hydraulic System |
27.5gal (US) |
Cooling System |
2.6gal (US) |
Weights
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Maximum Operating Weight with Canopy** |
15633lb |
Minimum Operating Weight with Canopy* |
14134lb |
Note (1) |
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket. |
Minimum Operating Weight with Cab* |
14266lb |
Maximum Operating Weight with Cab** |
15766lb |
Note (2) |
**Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket. |
Air Conditioning System
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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. |
Standard Equipment:
Operator Environment – Cab And Canopy
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Top Guard ISO 10262 1998 Level I
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ROPS ISO 12117-2:2008
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Stick Steer Mode
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Travel Cruise Control
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Control Pattern Changer
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Adjustable Wrist Rests
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Molded Footrests
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Removable, Washable Floor Mat
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Travel Pedals and Hand Levers
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Cat Key with Passcode Option
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Hydraulic Lockout Controls
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High Back, Suspension Seat
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Retractable Seat Belt (75 mm/3 in)
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Coat Hook
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Cup Holder
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Literature Holder
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Mounting Bosses for Top and Front Guards
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Signaling/Warning Horn
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Cab and (left side) Boom Work Lights
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Utility Space for Mobile Phone
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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
– Camera Ready (IP68 & IP69K)
– Hour Meter with Wake Up Switch
Operator Environment – Cab Only
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Operator Sound Pressure 72 dB(A) ISO 6396:2008
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HVAC with Automatic Temperature Control
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Integrated Lower Front Window
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Assisted Front Window Overhead Storage
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Rear Window Emergency Exit
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LED Interior Light
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12V Power Socket
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Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only)
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Skylight
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Jog dial interface
Undercarriage
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Greased and Lubricated Track
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Hydraulic Track Adjusters
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Tie Down Eyes on Track Frame
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Dozer Straight Blade
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Dozer Float
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Bolt-on, Reversible Wear Edge
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Rubber Tracks
Boom, Stick And Linkages
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One Piece Boom (3055 mm/120.3 in)
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Standard Stick (1580 mm/62.2 in)
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Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler for Cat Tools
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Thumb Ready
Electrical
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12 Volt Electrical System
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90 Ampere Alternator
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650 CCA Maintenance Free Battery
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Battery Disconnect
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Circuit Breaker
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Ignition Key Stop Switch
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Signaling/Warning Horn
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Product Link™ Basic (regulations apply)
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Travel Alarm
Other
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Locks on External Enclosure Doors
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Lockable Fuel Cap
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Beacon Socket
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Rear Reflectors
Optional Equipment:
Operator Environment – Cab And Canopy
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Rain Visor
Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 & IP69K)
– Numeric Security Code
Operator Environment – Cab Only
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Cab Heat Only
Air Suspension Heated Seat
Undercarriage
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Angle Blade
Extra Tool Carrier (XTC)
Steel Tracks (450 mm/17.7 in wide)
Steel Track with Rubber Pads
Boom, Stick And Linkages
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Long Stick (190 mm/78 in)
Attachments including Buckets, Augers and Hammers
2nd Auxiliary Hydraulic Lines
Boom Lowering Check Valve
Stick Lowering Check Valve
Certified Lifting Eye
Electrical
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Product Link Elite (regulations apply)
Camera
Rotating Beacon
Guarding
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Heavy Duty Front Guard ISO 10262 1998 Level II
Mesh Front Guard ISO 10262 1998 Level I
Overhead Cab Guard ISO 10262 1998 Level II
Polycarbonate Front Window EN356 P5A (Cab Only)
Track Guards
Other
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Additional Counterweight
Water Jacket Heater
Refueling Pump