Description
Mini Excavators
303 CR
Net Power
17.6 kW
Operating Weight
3545 kg
Dig Depth
2950 mm
Documents
303 CR Small Product Brochure (Global except China and Japan)
Cat Mini Hydraulic Excavators Product Line Brochure (North America)
Cat Mini Hydraulic Excavators Product Line Brochure (Europe)
Options And Accessories Kit Guide for Mini Hydraulic Excavators
Attachment Compatibility Guide for Mini Excavators
Cat Attachments for Mini Excavators Brochure
SPECIFICATIONS
The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Specifications
Net Power
17.6 kW
Operating Weight
3545 kg
Dig Depth
2950 mm
Engine Model
C1.1 Turbo
Height
350 mm
Maximum Blade Depth
535 mm
Tail Swing without Counterweight
775 mm
Boom Swing - Right
50 °
Maximum Dig Height
4510 mm
O/A Undercarriage Length
2070 mm
Average Exterior Sound Pressure (ISO 6395:2008)
94 dB(A)
Auxiliary Circuit - Primary - Flow
65 l/min
Gradeability - Maximum
30 degrees
Boom Height - Shipping Position
1600 mm
Bore
77 mm
Boom Height - Shipping Position
1920 mm
Vertical Wall
1820 mm
Cooling System
4 l
Tail Swing with Counterweight
890 mm
Overall Shipping Length*
4510 mm
Boom Swing - Left
640 mm
Track Belt/Shoe Width
300 mm
O/A Shipping Height
2480 mm
Maximum Reach
5240 mm
Counterweight
100 kg
Boom In Reach
1910 mm
Track Shoe Width
1550 mm
Note (1)
*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight.
Cab
115 kg
Ground Pressure - Maximum Weight
32.3 kPa
Auxiliary Circuit - Secondary - Pressure
245 bar
Boom Swing - Right
870 mm
Tail Swing
845 mm
Maximum Dump Clearance
3310 mm
Boom Swing - Right
870 mm
Ground Clearance
310 mm
Ground Pressure - Minimum Weight
27.6 kPa
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tail Swing with Extra Counterweight
890 mm
O/A Undercarriage Length
2070 mm
Operating Pressure - Swing
176 bar
Swing Bearing - Height
570 mm
O/A Shipping Height
2480 mm
EU: CE Plate Weight with Canopy***
3080 kg
Tail Swing
845 mm
Pump Flow at 2,400 rpm
100 l/min
Hydraulic Tank
18 l
Travel Speed - High
4.5 km/h
Maximum Traction Force - Low Speed
31.4 kN
Travel Speed - Low
2.6 km/h
Maximum Blade Height
385 mm
Maximum Traction Force - High Speed
14.7 kN
Track Width - Expanded
1550 mm
Dig Depth
2650 mm
Maximum Dump Clearance
3170 mm
Minimum Operating Weight with Canopy*
3025 kg
Engine Oil
4 l
Operator Sound Pressure (ISO 6396:2008)
78 dB(A)
Maximum Blade Depth
535 mm
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard
16.6 kN
Operating Pressure - Travel
245 bar
Digging Force - Bucket
28.4 kN
Maximum Reach - Ground Level
5110 mm
Minimum Operating Weight with Cab*
3140 kg
Steel Tracks
125 kg
Machine Swing Speed
9 r/min
Top Guard
ISO 10262:1998 (Level I)
Stick Length
1560 mm
Operating Pressure - Equipment
245 bar
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 Reach - Ground Level
4830 mm
Width
1550 mm
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
17.6 kW
Boom Swing - Left
75 °
Maximum Reach
4980 mm
Maximum Operating Weight with Canopy**
3425 kg
Note
European Union Directive “2000/14/EC”
Overall Shipping Length*
4560 mm
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke
81 mm
Ground Clearance
310 mm
Long Stick
25 kg
EU: CE Plate Weight with Cab***
3180 kg
Maximum Dig Height
4650 mm
Extra Counterweight
250 kg
Track Belt/Shoe Width
300 mm
Maximum Operating Weight with Cab**
3545 kg
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Fuel Tank
45 l
Hydraulic System
35 l
Swing Bearing - Height
570 mm
Auxiliary Circuit - Primary - Pressure
245 bar
Note
Advertised power is tested per the specified standard in effect at the time of manufacture.
Boom In Reach
1750 mm
Auxiliary Circuit - Secondary - Flow
25 l/min
Note
*Overall Shipping Length depends on blade position during shipment.
Tail Swing without Counterweight
775 mm
Maximum Blade Height
385 mm
Displacement
1.1 l
Boom Swing - Left
640 mm
Digging Force - Stick - Long
14.8 kN
Stick Length
1260 mm
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Vertical Wall
2070 mm
Note
*Overall Shipping Length depends on blade position during shipment.
Gross Power - 2,400 rpm - SAE J1995:2014
18.4 kW
Recyclability
95%
Note
* Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Features
ALL DAY COMFORT
- 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.
EASY TO OPERATE
- 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.
STICK STEER TRAVEL MODE
- Moving around the job site 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!
BIG PERFORMANCE IN A COMPACT DESIGN
- Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.
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. Courtesy work lights and a fluorescent retractable seat belt with optional seat belt reminder system are just a couple 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 through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.
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.
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.
SUSTAINABILITY
- 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)
UNDERCARRIAGE
- Steel Track (300 mm/11.8 in wide)
BOOM, STICK AND LINKAGES
- Long Stick (1560 mm/61.4 in)
- Front Shovel Capable – Dual Lock Manual Coupler
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines (not available in all regions)
ELECTRICAL
- Battery Disconnect
- Product Link PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- Travel Alarm (standard in some regions)
GUARDING
- Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
- Polycarbonate Half Height Front Guard (Canopy only)
OTHER
- Bio Oil Capable
- Eco Drain
- Water Jacket Heater
OPERATOR ENVIRONMENT
- Cab with Air Conditioning
- Cab with Heater
- Control Pattern Changer (optional in some regions)
- No Travel Pedals and Hand Levers
- Machine Security – Push to Start with Key Fob/Pass Code
- Vinyl Non-Suspension Seat (Canopy only)
- LED Front Lights
- LED Front and Rear Lights
- LED Boom Light
- Mirrors Left and Right
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
- Seat Belt Reminder System
ENGINE
- Cat C1.1 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
- 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
- Auxiliary Hydraulic Lines
- One and Two Way Auxiliary Flow
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
GUARDING
- Top Guard ISO 10262:1998 Level I
OPERATOR ENVIRONMENT
- Tilt-up Canopy or Tilt-Up Cab
- ROPS – ISO 12117-2:2008
- TOPS – ISO 12117:1997
- Next Generation Advanced Monitor
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 and IP69K)
– Numeric Security Code - 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
- 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
- Interior Light (Cab only)
- Boom Light, Halogen
- Utility Space for Mobile Phone
- 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
- Rubber Belt (300 mm/11.8 in 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)
- Front Shovel Capable – Hydraulic Coupler
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some regions)
ELECTRICAL
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Signaling/Warning Horn
- 12 Volt Power Socket
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