Back to listing page

306 CR

Mini Excavators

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.

Show

Net Power 41.7 kW

Gross Power - ISO 14396 43.2 kW

Displacement 2.43 l

Bore 87 mm

Availability

Please Call Admin

Request A Quote Download Brochure

306 CR

Request A Quote

OVERVIEW

Mini Excavators Inspired by Our Customers

FEATURES & BENEFITS

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... Read more

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. Read more

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... Read more

BIG PERFORMANCE IN A MINI DESIGN

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

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 r... Read more

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. Read more

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 reduc... Read more

CHOICES

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

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 rea... Read more

SPECIFICATIONS FOR 306 CR

Collapse All

Engine

Net Power	41.7 kW
Gross Power - ISO 14396	43.2 kW
Displacement	2.43 l
Bore	87 mm
Stroke	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	41.7 kW

Weights

Operating Weight	7150 kg
Minimum Operating Weight with Canopy*	6410 kg
Maximum Operating Weight with Canopy**	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**	7150 kg
Minimum Operating Weight with Cab*	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	250 kg
Long Stick	44 kg
Steel Tracks with Pads	375 kg
Angle Blade	102 kg
XTC Carriage (no tool)	64 kg

Travel System

Ground Pressure - Minimum Weight	35.4 kPa
Ground Pressure - Maximum Weight	39.1 kPa
Gradeability - Maximum	30 degrees
Maximum Traction Force - High Speed	31 kN
Maximum Traction Force - Low Speed	56 kN
Travel Speed - High	5 km/h
Travel Speed - Low	2.8 km/h

Service Refill Capacities

Cooling System	10 l
Hydraulic System	104 l
Hydraulic Tank	53 l
Engine Oil	8 l
Fuel Tank	130 l

Hydraulic System

Operating Pressure - Travel	24500 kPa
Auxiliary Circuit - Primary - Flow	90 l/min
Digging Force - Bucket	51.5 kN
Auxiliary Circuit - Primary - Pressure	24500 kPa
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow	33 l/min
Operating Pressure - Equipment	24500 kPa
Auxiliary Circuit - Secondary - Pressure	24500 kPa
Digging Force - Stick - Standard	29.5 kN
Operating Pressure - Swing	22500 kPa
Digging Force - Stick - Long	26.5 kN
Pump Flow at 2,400 rpm	151 l/min

Swing System

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

Blade

Straight Blade Width	1980 mm
Angle Blade Width	1980 mm
Straight Blade Height	390 mm
Angle Blade Height	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)
Average Exterior Sound Pressure (ISO 6395:2008)	99 dB(A)
Note	European Union Directive “2000/14/EC”

Dimensions - Standard Stick

Track Belt/Shoe Width	400 mm
Maximum Reach	6295 mm
Stick Length	1580 mm
Vertical Wall	2710 mm
Swing Bearing - Height	672 mm
Maximum Reach - Ground Level	6130 mm
Maximum Blade Height	415 mm
Ground Clearance	306 mm
Boom In Reach	2485 mm
Boom Swing - Right	910 mm
Transport Height	1755 mm
Tail Swing with Counterweight	1475 mm
Cab Height	2545 mm
Width over Upper House	1950 mm
Maximum Dump Clearance	4325 mm
Tail Swing without Counterweight	1350 mm
Boom Swing - Left	735 mm
O/A Undercarriage Length	2580 mm
Maximum Dig Height	5835 mm
Maximum Blade Depth	600 mm
O/A Track Width	1980 mm
Dig Depth	3710 mm
O/A Shipping Length	5975 mm

Dimensions - Long Stick

Dig Depth	4110 mm
Maximum Blade Height	415 mm
O/A Track Width	1980 mm
Track Belt/Shoe Width	400 mm
Tail Swing with Counterweight	1475 mm
Vertical Wall	3165 mm
Boom In Reach	2960 mm
Maximum Blade Depth	600 mm
Maximum Dig Height	6130 mm
Transport Height	2410 mm
Stick Length	1980 mm
Ground Clearance	306 mm
Swing Bearing - Height	672 mm
Width over Upper House	1950 mm
O/A Undercarriage Length	2580 mm
O/A Shipping Length	5950 mm
Cab Height	2545 mm
Maximum Reach	6685 mm
Boom Swing - Left	735 mm
Tail Swing without Counterweight	1350 mm
Boom Swing - Right	910 mm
Maximum Dump Clearance	4610 mm
Maximum Reach - Ground Level	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.