Cat 306 CR

Mini Excavators

About the Cat 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

Engine

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

Weights

Operating Weight	15766 lb
Minimum Operating Weight with Canopy*	14134 lb
Maximum Operating Weight with Canopy**	15633 lb
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
Minimum Operating Weight with Cab*	14266 lb
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
Long Stick	97 lb
Steel Tracks with Pads	827 lb
Angle Blade	225 lb
XTC Carriage (no tool)	141 lb

Travel System

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

Service Refill Capacities

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

Hydraulic System

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

Swing System

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

Blade

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

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	16 in
Maximum Reach	248 in
Stick Length	62 in
Vertical Wall	107 in
Swing Bearing - Height	27 in
Maximum Reach - Ground Level	241 in
Maximum Blade Height	16 in
Ground Clearance	12 in
Boom In Reach	98 in
Boom Swing - Right	36 in
Transport Height	69 in
Tail Swing with Counterweight	58 in
Cab Height	100 in
Width over Upper House	77 in
Maximum Dump Clearance	170 in
Tail Swing without Counterweight	53 in
Boom Swing - Left	29 in
O/A Undercarriage Length	102 in
Maximum Dig Height	230 in
Maximum Blade Depth	24 in
O/A Track Width	78 in
Dig Depth	146 in
O/A Shipping Length	235 in

Dimensions - Long Stick

Maximum Blade Height	16 in
O/A Track Width	78 in
Track Belt/Shoe Width	16 in
Tail Swing with Counterweight	58 in
Vertical Wall	125 in
Boom In Reach	117 in
Maximum Blade Depth	24 in
Maximum Dig Height	241 in
Transport Height	95 in
Stick Length	78 in
Ground Clearance	12 in
Swing Bearing - Height	27 in
Width over Upper House	77 in
O/A Undercarriage Length	102 in
O/A Shipping Length	234 in
Dig Depth	162 in
Cab Height	100 in
Maximum Reach	263 in
Boom Swing - Left	29 in
Tail Swing without Counterweight	53 in
Boom Swing - Right	36 in
Maximum Dump Clearance	182 in
Maximum Reach - Ground Level	257 in

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.

Features

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.