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306 CR Hydraulic Excavators
- Standard Equipment
- Optional Equipment
- Specs
Standard Equipment
- OPERATOR ENVIRONMENT – CAB AND CANOPY
- Top Guard ISO 10262 1998 Level I
- ROPS ISO 12117-2:2008
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer
- Adjustable Wrist Rests
- Molded Footrests
- Removable, Washable Floor Mat
- Travel Pedals and Hand Levers
- Cat Key with Passcode Option
- Hydraulic Lockout Controls
- High Back, Suspension Seat
- Retractable Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- Literature Holder
- Mounting Bosses for Top and Front Guards
- Signaling/Warning Horn
- Cab and (left side) Boom Work Lights
- 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
– Camera Ready (IP68 & IP69K)
– Hour Meter with Wake Up Switch
- OPERATOR ENVIRONMENT – CAB ONLY
- Operator Sound Pressure 72 dB(A) ISO 6396:2008
- HVAC with Automatic Temperature Control
- Integrated Lower Front Window
- Assisted Front Window Overhead Storage
- Rear Window Emergency Exit
- LED Interior Light
- 12V Power Socket
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only)
- Skylight
- Jog dial interface
- UNDERCARRIAGE
- Greased and Lubricated Track
- Hydraulic Track Adjusters
- Tie Down Eyes on Track Frame
- Dozer Straight Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
- Rubber Tracks
- BOOM, STICK AND LINKAGES
- One Piece Boom (3055 mm/120.3 in)
- Standard Stick (1580 mm/62.2 in)
- Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler for Cat Tools
- Thumb Ready
- ELECTRICAL
- 12 Volt Electrical System
- 90 Ampere Alternator
- 650 CCA Maintenance Free Battery
- Battery Disconnect
- Circuit Breaker
- Ignition Key Stop Switch
- Signaling/Warning Horn
- Product Link™ Basic (regulations apply)
- Travel Alarm
- OTHER
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Optional Equipment
- OPERATOR ENVIRONMENT – CAB AND CANOPY
- 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
- Cab Heat Only
- Air Suspension Heated Seat
- UNDERCARRIAGE
- Angle Blade
- Extra Tool Carrier (XTC)
- Steel Tracks (450 mm/17.7 in wide)
- Steel Track with Rubber Pads
- BOOM, STICK AND LINKAGES
- 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
- Product Link Elite (regulations apply)
- Camera
- Rotating Beacon
- GUARDING
- 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
- Additional Counterweight
- Water Jacket Heater
- Refueling Pump
Specs
Overview
Long Name:
306 CR Mini Hydraulic Excavator
Name:
306 CR
Brand:
Caterpillar
Status:
Current
Engine
Engine Model:
Cat C2.4 Turbo
Net Power:
55.9 HP / 41.7 kW
Gross Power - ISO 14396:
57.9 HP / 43.2 kW
Displacement:
148 in³ / 2.43 l
Bore:
3.4 in / 87 mm
Stroke:
4 in / 102.4 mm
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269:
55.9 HP / 41.7 kW
Weights
Operating Weight:
15766 lb / 7150 kg
Minimum Operating Weight with Canopy*:
14134 lb / 6410 kg
Maximum Operating Weight with Canopy**:
15633 lb / 7090 kg
Note (2):
**Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
Maximum Operating Weight with Cab**:
15766 lb / 7150 kg
Minimum Operating Weight with Cab*:
14266 lb / 6470 kg
Note (1):
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
Weight Increase from Minimum Configuration
Counterweight:
551 lb / 250 kg
Long Stick:
97 lb / 44 kg
Steel Tracks with Pads:
827 lb / 375 kg
Angle Blade:
225 lb / 102 kg
XTC Carriage (no tool):
141 lb / 64 kg
Travel System
Ground Pressure - Minimum Weight:
5.1 psi / 35.4 kPa
Ground Pressure - Maximum Weight:
5.7 psi / 39.1 kPa
Gradeability - Maximum:
30 degrees
Maximum Traction Force - High Speed:
6969 lbf / 31 kN
Maximum Traction Force - Low Speed:
12589 lbf / 56 kN
Travel Speed - High:
3.1 mile/h / 5 km/h
Travel Speed - Low:
1.7 mile/h / 2.8 km/h
Service Refill Capacities
Cooling System:
2.6 gal (US) / 10 l
Hydraulic System:
27.5 gal (US) / 104 l
Hydraulic Tank:
14 gal (US) / 53 l
Engine Oil:
2.1 gal (US) / 8 l
Fuel Tank:
34.3 gal (US) / 130 l
Hydraulic System
Operating Pressure - Travel:
3553 psi / 24500 kPa
Auxiliary Circuit - Primary - Flow:
24 gal/min / 90 l/min
Digging Force - Bucket:
11578 lbf / 51.5 kN
Auxiliary Circuit - Primary - Pressure:
3553 psi / 24500 kPa
Type:
Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow:
9 gal/min / 33 l/min
Operating Pressure - Equipment:
3553 psi / 24500 kPa
Auxiliary Circuit - Secondary - Pressure:
3553 psi / 24500 kPa
Digging Force - Stick - Standard:
6632 lbf / 29.5 kN
Operating Pressure - Swing:
3263 psi / 22500 kPa
Digging Force - Stick - Long:
5957 lbf / 26.5 kN
Pump Flow at 2,400 rpm:
40 gal/min / 151 l/min
Swing System
Boom Swing - Right:
65 degrees
Boom Swing - Left:
60 degrees
Machine Swing Speed:
11 r/min / 11 r/min
Blade
Straight Blade Width:
78 in / 1980 mm
Angle Blade Width:
78 in / 1980 mm
Straight Blade Height:
15.4 in / 390 mm
Angle Blade Height:
15.7 in / 400 mm
Certification - Cab
Top Guard:
ISO 10262:1998 (Level II)
Roll Over Protective Structure (ROPS):
ISO 12117-2:2008
Tip Over Protective Structure (TOPS):
ISO 12117:1997
Sound
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)
Note:
European Union Directive “2000/14/EC”
Dimensions - Standard Stick
Track Belt/Shoe Width:
16 in / 400 mm
Maximum Reach:
248 in / 6295 mm
Stick Length:
62 in / 1580 mm
Vertical Wall:
107 in / 2710 mm
Swing Bearing - Height:
27 in / 672 mm
Maximum Reach - Ground Level:
241 in / 6130 mm
Maximum Blade Height:
16 in / 415 mm
Ground Clearance:
12 in / 306 mm
Boom In Reach:
98 in / 2485 mm
Boom Swing - Right:
36 in / 910 mm
Transport Height:
69 in / 1755 mm
Tail Swing with Counterweight:
58 in / 1475 mm
Cab Height:
100 in / 2545 mm
Width over Upper House:
77 in / 1950 mm
Maximum Dump Clearance:
170 in / 4325 mm
Tail Swing without Counterweight:
53 in / 1350 mm
Boom Swing - Left:
29 in / 735 mm
O/A Undercarriage Length:
102 in / 2580 mm
Maximum Dig Height:
230 in / 5835 mm
Maximum Blade Depth:
24 in / 600 mm
O/A Track Width:
78 in / 1980 mm
Dig Depth:
146 in / 3710 mm
O/A Shipping Length:
235 in / 5975 mm
Dimensions - Long Stick
Maximum Blade Height:
16 in / 415 mm
O/A Track Width:
78 in / 1980 mm
Track Belt/Shoe Width:
16 in / 400 mm
Tail Swing with Counterweight:
58 in / 1475 mm
Vertical Wall:
125 in / 3165 mm
Boom In Reach:
117 in / 2960 mm
Maximum Blade Depth:
24 in / 600 mm
Maximum Dig Height:
241 in / 6130 mm
Transport Height:
95 in / 2410 mm
Stick Length:
78 in / 1980 mm
Ground Clearance:
12 in / 306 mm
Swing Bearing - Height:
27 in / 672 mm
Width over Upper House:
77 in / 1950 mm
O/A Undercarriage Length:
102 in / 2580 mm
O/A Shipping Length:
234 in / 5950 mm
Dig Depth:
162 in / 4110 mm
Cab Height:
100 in / 2545 mm
Maximum Reach:
263 in / 6685 mm
Boom Swing - Left:
29 in / 735 mm
Tail Swing without Counterweight:
53 in / 1350 mm
Boom Swing - Right:
36 in / 910 mm
Maximum Dump Clearance:
182 in / 4610 mm
Maximum Reach - Ground Level:
257 in / 6535 mm
Air Conditioning System
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.
