306 CR Mini Hydraulic Excavator

306 CR Mini Hydraulic Excavator

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.

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Engine

Engine Model
Cat C2.4 Turbo
Net Power
55.9HP
Stroke
4in
Bore
3.4in
Displacement
148in³
Gross Power - ISO 14396
57.9HP
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
55.9HP

Weights

Operating Weight
15766lb
Minimum Operating Weight with Canopy*
14134lb
Maximum Operating Weight with Canopy**
15633lb
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**
15766lb
Minimum Operating Weight with Cab*
14266lb
Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.

Swing System

Boom Swing - Left
60 degrees
Boom Swing - Right
65 degrees
Machine Swing Speed
11r/min

Weight Increase from Minimum Configuration

Counterweight
551lb
Long Stick
97lb
Steel Tracks with Pads
827lb
Angle Blade
225lb
XTC Carriage (no tool)
141lb

Travel System

Ground Pressure - Minimum Weight
5.1psi
Ground Pressure - Maximum Weight
5.7psi
Gradeability - Maximum
30 degrees
Maximum Traction Force - High Speed
6969lbf
Maximum Traction Force - Low Speed
12589lbf
Travel Speed - High
3.1mile/h
Travel Speed - Low
1.7mile/h

Service Refill Capacities

Cooling System
2.6gal (US)
Hydraulic System
27.5gal (US)
Hydraulic Tank
14gal (US)
Engine Oil
2.1gal (US)
Fuel Tank
34.3gal (US)

Hydraulic System

Operating Pressure - Travel
3553psi
Auxiliary Circuit - Primary - Flow
24gal/min
Digging Force - Bucket
11578lbf
Auxiliary Circuit - Primary - Pressure
3553psi
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow
9gal/min
Operating Pressure - Equipment
3553psi
Auxiliary Circuit - Secondary - Pressure
3553psi
Digging Force - Stick - Standard
6632lbf
Operating Pressure - Swing
3263psi
Digging Force - Stick - Long
5957lbf
Pump Flow at 2,400 rpm
40gal/min

Blade

Straight Blade Width
78in
Angle Blade Width
78in
Straight Blade Height
15.4in
Angle Blade Height
15.7in

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)
72dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
99dB(A)
Note
European Union Directive “2000/14/EC”

Dimensions - Standard Stick

Track Belt/Shoe Width
16in
Maximum Reach
248in
Stick Length
62in
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

Dimensions - Long Stick

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

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.

ALL DAY COMFORT

  • Your choice of a canopy (availability dependent on region) or a sealed and pressurized cab equipped with an improved air conditioning system, 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 Monitor provides customizable machine operator preferences and easy to read machine information.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with Cat Stick Steer. Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A MINI DESIGN

  • Increased lifting, swinging, travel and multi-functioning performance help you get the job done more efficiently.

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. An optional back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few 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 with grouped service points and robust service panels.

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.

CHOICES

  • Configure the machine to meet your specific application needs with a straight blade, angle blade, or Extra Tool Carrier (XTC).

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:

    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