303 CR Mini Hydraulic Excavator

Units of measurement :

Metric

Imperial

Net Power

17.6 kW

Operating Weight

3545 kg

Dig Depth

2950 mm

Availability

Purchase Rental Used

The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

4 Industry First Features

Cat Exclusives in a Mini Excavator

Up to 5% Lower Total Ownership Costs

with more common parts, lower repair costs and tilt up cab

Up to 10% More Performance

with programmable operator settings and faster cyle times

ALL DAY COMFORT

EASY TO OPERATE

STICK STEER TRAVEL MODE

BIG PERFORMANCE IN A COMPACT DESIGN

SAFETY ON THE JOB SITE

SIMPLE SERVICE FOR LESS DOWNTIME

LOWER OPERATING COSTS

UNMATCHED DEALER SUPPORT

SUSTAINABILITY

Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.

The Cat® C1.1 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)

*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

303 CR Small Product Brochure (Global except China and Japan).pdf Cat Mini Hydraulic Excavators Product Line Brochure (North America).pdf Cat Mini Hydraulic Excavators Product Line Brochure (Europe).pdf Options And Accessories Kit Guide for Mini Hydraulic Excavators.pdf Attachment Compatibility Guide for Mini Excavators.pdf Cat Attachments for Mini Excavators Brochure.pdf

Engine

Net Power	17.6 kW	23.6 hp
Engine Model	C1.1 Turbo
Bore	77 mm	3 in
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC	17.6 kW	23.6 hp
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke	81 mm	3.2 in
Note	Advertised power is tested per the specified standard in effect at the time of manufacture.
Displacement	1.1 l	69 in³
Gross Power - 2,400 rpm - SAE J1995:2014	18.4 kW	24.7 hp

Weights

Dimensions - Long Stick

Dig Depth	2950 mm	116.1 in
Boom Height - Shipping Position	1920 mm	75.6 in
Tail Swing with Counterweight	890 mm	35 in
Track Belt/Shoe Width	300 mm	11.8 in
Maximum Reach	5240 mm	206.3 in
Boom In Reach	1910 mm	74.2 in
Boom Swing - Right	870 mm	34.3 in
Tail Swing	845 mm	33.3 in
Maximum Dump Clearance	3310 mm	130.3 in
Ground Clearance	310 mm	12.2 in
O/A Undercarriage Length	2070 mm	81.5 in
O/A Shipping Height	2480 mm	97.6 in
Track Width - Expanded	1550 mm	61 in
Maximum Blade Depth	535 mm	21.1 in
Maximum Reach - Ground Level	5110 mm	201.2 in
Stick Length	1560 mm	61.4 in
Overall Shipping Length*	4560 mm	179.5 in
Maximum Dig Height	4650 mm	183.1 in
Swing Bearing - Height	570 mm	22.4 in
Note	*Overall Shipping Length depends on blade position during shipment.
Tail Swing without Counterweight	775 mm	30.5 in
Maximum Blade Height	385 mm	15.2 in
Boom Swing - Left	640 mm	25.2 in
Vertical Wall	2070 mm	81.5 in

Blade

Dimensions - Standard Stick

Maximum Blade Depth	535 mm	21.1 in
Tail Swing without Counterweight	775 mm	30.5 in
Maximum Dig Height	4510 mm	177.6 in
O/A Undercarriage Length	2070 mm	81.5 in
Boom Height - Shipping Position	1600 mm	63 in
Vertical Wall	1820 mm	71.7 in
Overall Shipping Length*	4510 mm	177.6 in
Boom Swing - Left	640 mm	25.2 in
O/A Shipping Height	2480 mm	97.6 in
Track Shoe Width	1550 mm	61 in
Boom Swing - Right	870 mm	34.3 in
Tail Swing with Extra Counterweight	890 mm	35 in
Swing Bearing - Height	570 mm	22.4 in
Tail Swing	845 mm	33.3 in
Maximum Blade Height	385 mm	15.2 in
Dig Depth	2650 mm	104.3 in
Maximum Dump Clearance	3170 mm	124.8 in
Maximum Reach - Ground Level	4830 mm	190.2 in
Maximum Reach	4980 mm	196.1 in
Ground Clearance	310 mm	12.2 in
Track Belt/Shoe Width	300 mm	11.8 in
Boom In Reach	1750 mm	68.9 in
Stick Length	1260 mm	49.6 in
Note	*Overall Shipping Length depends on blade position during shipment.

Swing System

Sound

Hydraulic System

Travel System

Service Refill Capacities

Weight Increase from Minimum Configuration

Certification - Cab and Canopy

Sustainability

Compatible products:

Other categories of Excavadoras:

360º Interior
360º Exterior

303 CR Mini Hydraulic Excavator

Operating Weight	3545 kg	7817 lb
Note (1)	*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
EU: CE Plate Weight with Canopy***	3080 kg	6791 lb
Minimum Operating Weight with Canopy*	3025 kg	6670 lb
Minimum Operating Weight with Cab*	3140 kg	6924 lb
Note (3)	***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
Maximum Operating Weight with Canopy**	3425 kg	7552 lb
EU: CE Plate Weight with Cab***	3180 kg	7012 lb
Maximum Operating Weight with Cab**	3545 kg	7817 lb
Note (2)	**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.

Boom Swing - Right	50 °	50 °
Machine Swing Speed	9 r/min	9 r/min
Boom Swing - Left	75 °	75 °

Average Exterior Sound Pressure (ISO 6395:2008)	94 dB(A)	94 dB(A)
Operator Sound Pressure (ISO 6396:2008)	78 dB(A)	78 dB(A)
Note	European Union Directive “2000/14/EC”

Auxiliary Circuit - Primary - Flow	65 l/min	17 gal/min
Auxiliary Circuit - Secondary - Pressure	245 bar	3553 psi
Operating Pressure - Swing	176 bar	2553 psi
Pump Flow at 2,400 rpm	100 l/min	26 gal/min
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard	16.6 kN	3732 lbf
Operating Pressure - Travel	245 bar	3553 psi
Digging Force - Bucket	28.4 kN	6385 lbf
Operating Pressure - Equipment	245 bar	3553 psi
Auxiliary Circuit - Primary - Pressure	245 bar	3553 psi
Auxiliary Circuit - Secondary - Flow	25 l/min	7 gal/min
Digging Force - Stick - Long	14.8 kN	3327 lbf
Note	* Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Gradeability - Maximum	30 degrees
Ground Pressure - Maximum Weight	32.3 kPa	4.7 psi
Ground Pressure - Minimum Weight	27.6 kPa	4 psi
Travel Speed - High	4.5 km/h	2.8 mile/h
Maximum Traction Force - Low Speed	31.4 kN	7059 lbf
Travel Speed - Low	2.6 km/h	1.6 mile/h
Maximum Traction Force - High Speed	14.7 kN	3305 lbf

Cooling System	4 l	1.1 gal (US)
Hydraulic Tank	18 l	4.8 gal (US)
Engine Oil	4 l	1.1 gal (US)
Fuel Tank	45 l	11.9 gal (US)
Hydraulic System	35 l	9.2 gal (US)

Counterweight	100 kg	221 lb
Cab	115 kg	254 lb
Steel Tracks	125 kg	276 lb
Long Stick	25 kg	55 lb
Extra Counterweight	250 kg	551 lb

Roll Over Protective Structure (ROPS)	ISO 12117-2:2008
Top Guard	ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)	ISO 12117:1997

Detalle Productos Cat

303 CR Mini Hydraulic Excavator

4 Industry First Features

Up to 5% Lower Total Ownership Costs

Up to 10% More Performance

ALL DAY COMFORT

EASY TO OPERATE

STICK STEER TRAVEL MODE

BIG PERFORMANCE IN A COMPACT DESIGN

SAFETY ON THE JOB SITE

SIMPLE SERVICE FOR LESS DOWNTIME

LOWER OPERATING COSTS

UNMATCHED DEALER SUPPORT

SUSTAINABILITY

Engine

Weights

Dimensions - Long Stick

Blade

Dimensions - Standard Stick

Swing System

Sound

Hydraulic System

Travel System

Service Refill Capacities

Weight Increase from Minimum Configuration

Certification - Cab and Canopy

Sustainability

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A23

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B2s

Other categories of Excavadoras:

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360º Interior

360º Exterior