303 CR
303 CR - 2021, Tier 4 Final, Stage V, Global ex China, Japan
Overview
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
Units:
| Net Power | — |
| Operating Weight | — |
| Dig Depth | — |
Benefits & 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!
August 27, 2024
Specifications
Units:
| Net Power | — |
| Engine Model | C1.1 Turbo |
| Bore | — |
| Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | — |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
| Stroke | — |
| Note | Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Displacement | — |
| Gross Power - 2,400 rpm - SAE J1995:2014 | — |
| Operating Weight | — |
| 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*** | — |
| Minimum Operating Weight with Canopy* | — |
| Minimum Operating Weight with Cab* | — |
| 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** | — |
| EU: CE Plate Weight with Cab*** | — |
| Maximum Operating Weight with Cab** | — |
| Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight. |
| Dig Depth | — |
| Boom Height - Shipping Position | — |
| Tail Swing with Counterweight | — |
| Track Belt/Shoe Width | — |
| Maximum Reach | — |
| Boom In Reach | — |
| Boom Swing - Right | — |
| Tail Swing | — |
| Maximum Dump Clearance | — |
| Ground Clearance | — |
| O/A Undercarriage Length | — |
| O/A Shipping Height | — |
| Track Width - Expanded | — |
| Maximum Blade Depth | — |
| Maximum Reach - Ground Level | — |
| Stick Length | — |
| Overall Shipping Length* | — |
| Maximum Dig Height | — |
| Swing Bearing - Height | — |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Tail Swing without Counterweight | — |
| Maximum Blade Height | — |
| Boom Swing - Left | — |
| Vertical Wall | — |
| Height | — |
| Width | — |
| Maximum Blade Depth | — |
| Tail Swing without Counterweight | — |
| Maximum Dig Height | — |
| O/A Undercarriage Length | — |
| Boom Height - Shipping Position | — |
| Vertical Wall | — |
| Overall Shipping Length* | — |
| Boom Swing - Left | — |
| O/A Shipping Height | — |
| Track Shoe Width | — |
| Boom Swing - Right | — |
| Tail Swing with Extra Counterweight | — |
| Swing Bearing - Height | — |
| Tail Swing | — |
| Maximum Blade Height | — |
| Dig Depth | — |
| Maximum Dump Clearance | — |
| Maximum Reach - Ground Level | — |
| Maximum Reach | — |
| Ground Clearance | — |
| Track Belt/Shoe Width | — |
| Boom In Reach | — |
| Stick Length | — |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Boom Swing - Right | — |
| Machine Swing Speed | — |
| Boom Swing - Left | — |
| Average Exterior Sound Pressure (ISO 6395:2008) | — |
| Operator Sound Pressure (ISO 6396:2008) | — |
| Note | European Union Directive “2000/14/EC” |
| Auxiliary Circuit - Primary - Flow | — |
| Auxiliary Circuit - Secondary - Pressure | — |
| Operating Pressure - Swing | — |
| Pump Flow at 2,400 rpm | — |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Digging Force - Stick - Standard | — |
| Operating Pressure - Travel | — |
| Digging Force - Bucket | — |
| Operating Pressure - Equipment | — |
| Auxiliary Circuit - Primary - Pressure | — |
| Auxiliary Circuit - Secondary - Flow | — |
| Digging Force - Stick - Long | — |
| Note | * Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Gradeability - Maximum | 30 degrees |
| Ground Pressure - Maximum Weight | — |
| Ground Pressure - Minimum Weight | — |
| Travel Speed - High | — |
| Maximum Traction Force - Low Speed | — |
| Travel Speed - Low | — |
| Maximum Traction Force - High Speed | — |
| Cooling System | — |
| Hydraulic Tank | — |
| Engine Oil | — |
| Fuel Tank | — |
| Hydraulic System | — |
| Counterweight | — |
| Cab | — |
| Steel Tracks | — |
| Long Stick | — |
| Extra Counterweight | — |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Top Guard | ISO 10262:1998 (Level I) |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Recyclability | 95% |
Benefits & 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)
Data not available.
Standard Equipment
- 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<br>– Touch Screen<br>– Site Reference System<br>– High Definition Camera Capable (IP68 and IP69K)<br>– 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)<br>– Fuel Level and Coolant Temperature Gauges<br>– Maintenance and Machine Monitoring<br>– Performance and Machine Adjustments<br>– Numeric Security Code<br>– Multiple Languages<br>– Hour Meter with Wake Up Switch<br>– 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
Optional Equipment
- 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
- 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
Related Products
Units:
Compaction Wheels
When backfilling trenches, Compaction Wheels are an option to achieve desired compaction levels at a lower price point.
| Model | Compaction Width | ||
|---|---|---|---|
| 305 mm (12 in) 3-4 Ton, Pin On | — | 2 | 3-4 Ton Mini Excavators |
| 406 mm (16 in) 3-4 Ton, Pin On | — | 3 | 3-4 Ton Mini Excavators |
| 559 mm (22 in) 3-4 Ton, Pin On | — | 4 | 3-4 Ton Mini Excavators |
| 305 mm (12 in) 1-8 Ton, Pin Lock | — | 2 | 1-8 Ton Mini Excavators |
| 406 mm (16 in) 1-8 Ton, Pin Lock | — | 3 | 1-8 Ton Mini Excavators |
| 559 mm (22 in) 1-8 Ton, Pin Lock | — | 4 | 1-8 Ton Mini Excavators |
Ditch Cleaning Buckets - Mini Excavator
Used in ditch cleaning, sloping, grading and other finishing work.
| Model | Width | ||
|---|---|---|---|
| 1000 mm (39 in) | — | — | — |
| 1400 mm (55 in) | — | — | — |
| 1200 mm (47 in) | — | — | — |
Dual Lock™ Pin Grabber Couplers - Mini Excavator
Increase machine versatility and improve overall production.
| Model | Weight | ||
|---|---|---|---|
| 3-4 Ton Mini Excavators Manual | — | — | — |
| 3-4 Ton Mini Excavators Hydraulic | — | — | — |
Equipment Management
Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.
| Model |
|---|
| VisionLink® |
Hammers
Used for demolition and construction applications.
| Model | Operating Weight - With Tool | ||
|---|---|---|---|
| B4 Side Mount | — | — | 3-4 Ton Mini Excavators |
| B2 | — | — | 1-3 Ton Mini Excavators |
| B2s | — | — | 1-3 Ton Mini Excavators |
Heavy Duty Buckets - Mini Excavator
High strength buckets designed for maximum performance and value over a broad range of applications.
| Model | Width | ||
|---|---|---|---|
| 305 mm (12 in) | — | — | — |
| 406 mm (16 in) | — | — | — |
| 508 mm (20 in) | — | — | — |
| 619 mm (24 in) | — | — | — |
| 914 mm (36 in) | — | — | — |
Pin Puller Couplers
Increase machine versatility, reduce costs, and improve overall production with Cat® Pin Puller Couplers for Mini Excavators.
| Model | Weight | ||
|---|---|---|---|
| 3-4 Ton Mini Excavators | — | — | — |
Rippers
For land clearing or site preparation in rock, quarry work and similar high-impact digging applications. Combine with a coupler for Rip & Load productivity.
| Model | Shank Length | ||
|---|---|---|---|
| 490 mm (19 in) | — | — | — |
S Type Couplers
The S Type Coupler is a pin grabber style dedicated coupler. It ensures an exchangeability of tools within a fleet of machines with different platforms. Consistent tight fit to attachment, low offset, and reliability are the key features.
| Model | Weight | ||
|---|---|---|---|
| S-40 Pin Grabber 3 Ton | — | — | — |
| S-40 Pin Grabber LCS 3 Ton | — | — | — |
Utility Thumbs
Utility Thumbs offer hydraulic functionality, with maximum interchangeability.
| Model | Length | ||
|---|---|---|---|
| 326 mm (13 in) 8 Teeth/2 Tines | — | — | — |
