Mini Excavators 303 CR

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Key Specs

Net Power: 24 hp; 17.6 kW

Operating Weight: 7937 lb; 3600 kg

Dig Depth: 8.7 ft; 2650 mm

303 CR
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Overview

Mini Excavators Inspired by Our Customers

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

Benefits

4 Industry First Features

Cat Exclusives in a Mini Excavator

Up to 15% Lower Total Ownership Costs

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

Up to 20% More Performance

with programmable operator settings and faster cyle times

Features At A Glance

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

Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.

Moving around the jobsite is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

Strong lift and dig performance helps you get the job done faster. The compact radius design and retractable undercarriage lets you access and work in the tightest areas. Dig-to-blade and dozer float features allow for easy clean up.

Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt with optional seat belt remind system are just a couple of the safety features weâ€™ve built into the machine.

Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.

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.

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.

Specifications Standard Equipment Optional Equipment

Product Specifications for 303 CR

Engine

Net Power	24 hp 17.6 kW
Engine Model	C1.1 Turbo C1.1 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC	24 hp 17.6 kW
Gross Power - 2,400 rpm - SAE J1995:2014	25 mile/h 18.4 kW
Bore	3 in 77 mm
Stroke	3.2 in 81 mm
Displacement	67 in³ 1.1 l
Emissions	Meets China Nonroad Stage IV emission standards. Meets China Nonroad Stage IV emission standards.
Note	Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load. Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.
Note (1)	Advertised power is tested per the specified standard in effect at the time of manufacture. Advertised power is tested per the specified standard in effect at the time of manufacture.

Weights

Operating Weight	7937 lb 3600 kg
Minimum Operating Weight with Canopy*	6845 lb 3105 kg
Maximum Operating Weight with Canopy**	7672 lb 3480 kg
Minimum Operating Weight with Cab*	7099 lb 3220 kg
Maximum Operating Weight with Cab**	7937 lb 3600 kg
Note	Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight. Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Note (1)	Maximum Weight is based on steel tracks, operator, full fuel tank, standard stick, blade, bucket and extra counterweight. Maximum Weight is based on steel tracks, operator, full fuel tank, standard stick, blade, bucket and extra counterweight.

Dimensions - Standard Stick

Dig Depth	8.7 ft 2650 mm
Vertical Wall	6 ft 1820 mm
Maximum Reach - Ground Level	190 in 4830 mm
Maximum Reach	16.3 ft 4980 mm
Maximum Dig Height	178 in 4510 mm
Maximum Dump Clearance	10.4 ft 3170 mm
Boom In Reach	5.7 ft 1750 mm
Tail Swing without Counterweight	2.5 ft 775 mm
Tail Swing with Extra Counterweight	2.9 ft 890 mm
Maximum Blade Height	1.3 ft 385 mm
Maximum Blade Depth	1.8 ft 535 mm
Boom Height - Shipping Position	5.2 ft 1600 mm
Shipping Height	98 in 2480 mm
Swing Bearing - Height	1.9 ft 570 mm
O/A Undercarriage Length	81 in 2070 mm
Overall Shipping Length*	14.8 ft 4510 mm
Boom Swing - Right	2.8 ft 870 mm
Boom Swing - Left	2.1 ft 640 mm
Track Belt/Shoe Width	1 ft 300 mm
Track Width	5.1 ft 1550 mm
Ground Clearance	1 in 310 mm
Stick Length	4.1 ft 1260 mm
Note	Overall shipping length depends on blade position during shipment. Overall shipping length depends on blade position during shipment.

Weight Increase from Minimum Configuration

Cab	254 lb 115 kg
Counterweight (extra)	551 lb 250 kg
Steel Tracks	276 lb 125 kg

Travel System

Travel Speed - High	3 mile/h 4.5 km/h
Travel Speed - Low	2 mile/h 2.6 km/h
Maximum Traction Force - High Speed	3305 lbf 14.7 kN
Maximum Traction Force - Low Speed	7059 lbf 31.4 kN
Ground Pressure - Minimum Weight	4 psi 28.3 kPa
Ground Pressure - Maximum Weight	5 psi 32.8 kPa
Gradeability - Maximum	30 30

Service Refill Capacities

Cooling System	1 gal (US) 4 l
Engine Oil	1 gal (US) 4 l
Fuel Tank	12 gal (US) 45 l
Hydraulic Tank	5 gal (US) 18 l
Hydraulic System	9 gal (US) 35 l

Hydraulic System

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

Swing System

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

Blade

Width	61 in 1550 mm
Height	14 in 350 mm

Certification - Cab and Canopy

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

Sound

Operator Sound Pressure (ISO 6396:2008)	78 dB(A) 78 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)	94 dB(A) 94 dB(A)

303 CR Standard Equipment

ENGINE

Cat C1.1 Turbo Engine (China Nonroad IV)

Automatic Engine Idle

Automatic Engine Shutdown

Automatic Two Speed Travel

Fuel Water Separator

Power on Demand (not available in all regions)

Variable Displacement Piston Pump

Load Sensing/Flow Sharing Hydraulics

HYDRAULICS

Smart Tech Electronic Pump

Accumulator

Automatic Swing Brake

One and Two Way Auxiliary Flow

Continuous Auxiliary Flow

OPERATOR ENVIRONMENT

Tilt-up Canopy or Tilt-Up Cab

Cab with Air Conditioning

Cab with Heater

Top Guard ISO 10262:1998 Level I

ROPS – ISO 12117-2:2008

TOPS – ISO 12117:1997

Stick Steer Mode

Travel Cruise Control

Control Pattern Changer (optional in some regions)

Adjustable Wrist Rests

Washable Floor Mat

Travel Pedals and Hand Levers

Machine Security – Standard Key with Pass Code

Fabric Suspension Seat (Cab only)

Vinyl Suspension Seat (Canopy only)

Hydraulic Lockout – All Controls

Retractable High Visibility Seat Belt (75 mm/3 in)

Coat Hook

Cup Holder

Storage Pocket

Skylight

Mounting Bosses for Front

Signaling/Warning Horn (not all regions)

Interior Light (Cab only)

LED Boom Light (not all regions)

Utility Space for Mobile Phone

Mirrors Left and Right

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
– Hour Meter with Wake Up Switch
– Jog Dial (cab only)

UNDERCARRIAGE

Steel Track (300 mm wide)

Dozer Blade

Dozer Blade Float

Tie Downs on Track Frame

BOOM, STICK AND LINKAGES

One Piece Boom (2200 mm/86.6 in)

Standard Stick (1260 mm/49.6 in)

ELECTRICAL

12 Volt Battery

Software (machine and monitor)

Maintenance Free Battery

Battery Disconnect

Signaling/Warning Horn

12 Volt Power Socket

303 CR Optional Equipment

HYDRAULICS

Auxiliary Hydraulic Lines

Auxiliary Line Ball Valve Connect

OPERATOR ENVIRONMENT

LED Front Lights

Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)

Next Generation Advanced Monitor
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 and IP69K)
– Numeric Security Code

UNDERCARRIAGE

Rubber Belt (300 mm wide)

ELECTRICAL

Product Link PL243 (regulations apply)

OTHER

Extra Counterweight (250 kg/551 lb)

Product Specifications for 303 CR

Download Print

Engine

Net Power	24 hp 17.6 kW
Engine Model	C1.1 Turbo C1.1 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC	24 hp 17.6 kW
Gross Power - 2,400 rpm - SAE J1995:2014	25 mile/h 18.4 kW
Bore	3 in 77 mm
Stroke	3.2 in 81 mm
Displacement	67 in³ 1.1 l
Emissions	Meets China Nonroad Stage IV emission standards. Meets China Nonroad Stage IV emission standards.
Note	Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load. Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load.
Note (1)	Advertised power is tested per the specified standard in effect at the time of manufacture. Advertised power is tested per the specified standard in effect at the time of manufacture.

Weights

Operating Weight	7937 lb 3600 kg
Minimum Operating Weight with Canopy*	6845 lb 3105 kg
Maximum Operating Weight with Canopy**	7672 lb 3480 kg
Minimum Operating Weight with Cab*	7099 lb 3220 kg
Maximum Operating Weight with Cab**	7937 lb 3600 kg
Note	Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight. Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Note (1)	Maximum Weight is based on steel tracks, operator, full fuel tank, standard stick, blade, bucket and extra counterweight. Maximum Weight is based on steel tracks, operator, full fuel tank, standard stick, blade, bucket and extra counterweight.

Dimensions - Standard Stick

Dig Depth	8.7 ft 2650 mm
Vertical Wall	6 ft 1820 mm
Maximum Reach - Ground Level	190 in 4830 mm
Maximum Reach	16.3 ft 4980 mm
Maximum Dig Height	178 in 4510 mm
Maximum Dump Clearance	10.4 ft 3170 mm
Boom In Reach	5.7 ft 1750 mm
Tail Swing without Counterweight	2.5 ft 775 mm
Tail Swing with Extra Counterweight	2.9 ft 890 mm
Maximum Blade Height	1.3 ft 385 mm
Maximum Blade Depth	1.8 ft 535 mm
Boom Height - Shipping Position	5.2 ft 1600 mm
Shipping Height	98 in 2480 mm
Swing Bearing - Height	1.9 ft 570 mm
O/A Undercarriage Length	81 in 2070 mm
Overall Shipping Length*	14.8 ft 4510 mm
Boom Swing - Right	2.8 ft 870 mm
Boom Swing - Left	2.1 ft 640 mm
Track Belt/Shoe Width	1 ft 300 mm
Track Width	5.1 ft 1550 mm
Ground Clearance	1 in 310 mm
Stick Length	4.1 ft 1260 mm
Note	Overall shipping length depends on blade position during shipment. Overall shipping length depends on blade position during shipment.

Weight Increase from Minimum Configuration

Cab	254 lb 115 kg
Counterweight (extra)	551 lb 250 kg
Steel Tracks	276 lb 125 kg

Travel System

Travel Speed - High	3 mile/h 4.5 km/h
Travel Speed - Low	2 mile/h 2.6 km/h
Maximum Traction Force - High Speed	3305 lbf 14.7 kN
Maximum Traction Force - Low Speed	7059 lbf 31.4 kN
Ground Pressure - Minimum Weight	4 psi 28.3 kPa
Ground Pressure - Maximum Weight	5 psi 32.8 kPa
Gradeability - Maximum	30 30

Service Refill Capacities

Cooling System	1 gal (US) 4 l
Engine Oil	1 gal (US) 4 l
Fuel Tank	12 gal (US) 45 l
Hydraulic Tank	5 gal (US) 18 l
Hydraulic System	9 gal (US) 35 l

Hydraulic System

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

Swing System

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

Blade

Width	61 in 1550 mm
Height	14 in 350 mm

Certification - Cab and Canopy

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

Sound

Operator Sound Pressure (ISO 6396:2008)	78 dB(A) 78 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)	94 dB(A) 94 dB(A)

303 CR Standard Equipment

ENGINE

Cat C1.1 Turbo Engine (China Nonroad IV)

Automatic Engine Idle

Automatic Engine Shutdown

Automatic Two Speed Travel

Fuel Water Separator

Power on Demand (not available in all regions)

Variable Displacement Piston Pump

Load Sensing/Flow Sharing Hydraulics

HYDRAULICS

Smart Tech Electronic Pump

Accumulator

Automatic Swing Brake

One and Two Way Auxiliary Flow

Continuous Auxiliary Flow

OPERATOR ENVIRONMENT

Tilt-up Canopy or Tilt-Up Cab

Cab with Air Conditioning

Cab with Heater

Top Guard ISO 10262:1998 Level I

ROPS – ISO 12117-2:2008

TOPS – ISO 12117:1997

Stick Steer Mode

Travel Cruise Control

Control Pattern Changer (optional in some regions)

Adjustable Wrist Rests

Washable Floor Mat

Travel Pedals and Hand Levers

Machine Security – Standard Key with Pass Code

Fabric Suspension Seat (Cab only)

Vinyl Suspension Seat (Canopy only)

Hydraulic Lockout – All Controls

Retractable High Visibility Seat Belt (75 mm/3 in)

Coat Hook

Cup Holder

Storage Pocket

Skylight

Mounting Bosses for Front

Signaling/Warning Horn (not all regions)

Interior Light (Cab only)

LED Boom Light (not all regions)

Utility Space for Mobile Phone

Mirrors Left and Right

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
– Hour Meter with Wake Up Switch
– Jog Dial (cab only)