306 CR
306 CR Mini Hydraulic Excavator
The 306 CR Mini Excavator delivers power and performance in a 6 ton size class to help you work in a wide range of applications.
306 CR
306 CR
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.
- Specifications
- Standard / Optional Features
- Long Name -306 CR Mini Hydraulic Excavator
- Name -306 CR
- Brand -Caterpillar
- Status -Current
- 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
- Engine Model - Cat C2.4 Turbo
- 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
- 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.
- 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
- 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
- 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
- Operating Pressure - Travel - 3553 psi / 24500 kPa
- Auxiliary Circuit - Primary - Flow - 24 gpm / 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 gpm / 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 gpm / 151 L/min
- Boom Swing - Right - 65 degrees
- Boom Swing - Left - 60 degrees
- Machine Swing Speed - 11 r/min / 11 r/min
- 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
- Top Guard - ISO 10262:1998 (Level II)
- Roll Over Protective Structure (ROPS) - ISO 12117-2:2008
- Tip Over Protective Structure (TOPS) - ISO 12117:1997
- 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”
- 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
- Dig Depth - 162 in / 4110 mm
- 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
- 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 - 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.
- Recyclability - 96%
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
Width
39.4 in / 1000 mm
Capacity
6 ft³ / 169.89 m³
Weight
258.6 lb / 117.3 kg
Width
47.2 in / 1200 mm
Capacity
9.2 yd³ / 259.89 m³
Weight
410.5 lb / 186.19 kg
Width
51.2 in / 1300 mm
Capacity
7.8 yd³ / 220.3 m³
Weight
260.6 lb / 118.19 kg
Width
59.1 in / 1500 mm
Capacity
11.6 yd³ / 329.89 m³
Weight
491.4 lb / 222.89 kg
Width
63 in / 1600 mm
Capacity
9.9 ft³ / 279.79 l
Weight
306.7 lb / 139.1 kg
Width
80.2 in / 2036 mm
Capacity
0.52 ft³ / 0.4 l
Weight
1016 lb / 461 kg
Width
12 in / 305 mm
Capacity
2.1 yd³ / 59.5 m³
Weight
156.5 lb / 71 kg
Width
12 in / 305 mm
Capacity
2.9 ft³ / 82.09 l
Weight
185.2 lb / 84 kg
Width
16 in / 406 mm
Capacity
3.7 ft³ / 104.8 l
Weight
205 lb / 93 kg
Width
16 in / 406 mm
Capacity
2.7 ft³ / 76.5 l
Weight
174.2 lb / 79 kg
Width
18 in / 457 mm
Capacity
4.4 yd³ / 124.59 m³
Weight
227.1 lb / 103 kg
Width
18 in / 457 mm
Capacity
3.1 ft³ / 87.8 l
Weight
194 lb / 88 kg
Weight
169.8 lb / 77 kg
Width
10.7 in / 272 mm
Length
20.8 in / 528 mm
Width
20 in / 508 mm
Capacity
3.6 ft³ / 101.9 l
Weight
207.2 lb / 94 kg
Width
20 in / 508 mm
Capacity
5.1 ft³ / 144.39 l
Weight
240.3 lb / 109 kg
Width
24.4 in / 619 cm
Capacity
4.6 ft³ / 130.3 l
Weight
233.7 lb / 106 kg
Width
24.4 in / 619 mm
Capacity
6.4 ft³ / 181.19 l
Weight
271.2 lb / 123 kg
Shank Length
26.6 in / 676 mm
Weight
134 lb / 60.79 kg
Overall Length
32.4 in / 822 mm
Width
30 in / 762 mm
Capacity
6.1 yd³ / 172.69 m³
Weight
280 lb / 127 kg
Width
30 in / 762 mm
Capacity
8.5 ft³ / 240.69 l
Weight
321.9 lb / 146 kg
Width
36 in / 914 mm
Capacity
7.8 yd³ / 220.89 m³
Weight
321.9 lb / 146 kg
Width
36 in / 914 mm
Capacity
10.6 ft³ / 300.2 l
Weight
368.2 lb / 167 kg
Drive Shaft Torque at Maximum Pressure
3038.8 lb/ft / 4120 N·m
Drive Method
Gerotor Motor - Single Planetary Reduction
Mounting Bracket Design
5 Ton Mini Excavator Pin On
Drive Shaft Torque at Maximum Pressure
5034.6 lb/ft / 6826 N·m
Drive Method
Gerotor Motor - Double Planetary Reduction
Mounting Bracket Design
5 Ton Mini Excavator Pin On
Working Width
39.4 in / 1000 mm
Required Hydraulics
Standard Flow
Overall Width
46.6 in / 1184 mm
