303 CR Mini Excavator
303 CR
The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Net Power
23.6 HP
Operating Weight
7817 lb
Dig Depth
116.1 in
DOWNLOAD TECHNICAL SPECIFICATIONS
Specification
Value
Net Power
23.6 HP
Engine Model
C1.1 Turbo
Bore
3 in
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
23.6 HP
Emissions
Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Stroke
3.2 in
Note
Advertised power is tested per the specified standard in effect at the time of manufacture.
Displacement
69 in³
Gross Power - 2,400 rpm - SAE J1995:2014
24.7 HP
Specification
Value
Operating Weight
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***
6791 lb
Minimum Operating Weight with Canopy*
6670 lb
Minimum Operating Weight with Cab*
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**
7552 lb
EU: CE Plate Weight with Cab***
7012 lb
Maximum Operating Weight with Cab**
7817 lb
Note (2)
**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight.
Specification
Value
Dig Depth
116.1 in
Boom Height - Shipping Position
75.6 in
Tail Swing with Counterweight
35 in
Track Belt/Shoe Width
11.8 in
Maximum Reach
206.3 in
Boom In Reach
74.2 in
Boom Swing - Right
34.3 in
Tail Swing
33.3 in
Maximum Dump Clearance
130.3 in
Ground Clearance
12.2 in
O/A Undercarriage Length
81.5 in
O/A Shipping Height
97.6 in
Track Width - Expanded
61 in
Maximum Blade Depth
21.1 in
Maximum Reach - Ground Level
201.2 in
Stick Length
61.4 in
Overall Shipping Length*
179.5 in
Maximum Dig Height
183.1 in
Swing Bearing - Height
22.4 in
Note
*Overall Shipping Length depends on blade position during shipment.
Tail Swing without Counterweight
30.5 in
Maximum Blade Height
15.2 in
Boom Swing - Left
25.2 in
Vertical Wall
81.5 in
Specification
Value
Height
13.8 in
Width
61 in
Specification
Value
Maximum Blade Depth
21.1 in
Tail Swing without Counterweight
30.5 in
Maximum Dig Height
177.6 in
O/A Undercarriage Length
81.5 in
Boom Height - Shipping Position
63 in
Vertical Wall
71.7 in
Overall Shipping Length*
177.6 in
Boom Swing - Left
25.2 in
O/A Shipping Height
97.6 in
Track Shoe Width
61 in
Boom Swing - Right
34.3 in
Tail Swing with Extra Counterweight
35 in
Swing Bearing - Height
22.4 in
Tail Swing
33.3 in
Maximum Blade Height
15.2 in
Dig Depth
104.3 in
Maximum Dump Clearance
124.8 in
Maximum Reach - Ground Level
190.2 in
Maximum Reach
196.1 in
Ground Clearance
12.2 in
Track Belt/Shoe Width
11.8 in
Boom In Reach
68.9 in
Stick Length
49.6 in
Note
*Overall Shipping Length depends on blade position during shipment.
Specification
Value
Boom Swing - Right
50 °
Machine Swing Speed
9 r/min
Boom Swing - Left
75 °
Specification
Value
Average Exterior Sound Pressure (ISO 6395:2008)
94 dB(A)
Operator Sound Pressure (ISO 6396:2008)
78 dB(A)
Note
European Union Directive “2000/14/EC”
Specification
Value
Auxiliary Circuit - Primary - Flow
17 gal/min
Auxiliary Circuit - Secondary - Pressure
3553 psi
Operating Pressure - Swing
2553 psi
Pump Flow at 2,400 rpm
26 gal/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard
3732 lbf
Operating Pressure - Travel
3553 psi
Digging Force - Bucket
6385 lbf
Operating Pressure - Equipment
3553 psi
Auxiliary Circuit - Primary - Pressure
3553 psi
Auxiliary Circuit - Secondary - Flow
7 gal/min
Digging Force - Stick - Long
3327 lbf
Note
* Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Specification
Value
Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
4.7 psi
Ground Pressure - Minimum Weight
4 psi
Travel Speed - High
2.8 mile/h
Maximum Traction Force - Low Speed
7059 lbf
Travel Speed - Low
1.6 mile/h
Maximum Traction Force - High Speed
3305 lbf
Specification
Value
Cooling System
1.1 gal (US)
Hydraulic Tank
4.8 gal (US)
Engine Oil
1.1 gal (US)
Fuel Tank
11.9 gal (US)
Hydraulic System
9.2 gal (US)
Specification
Value
Counterweight
221 lb
Cab
254 lb
Steel Tracks
276 lb
Long Stick
55 lb
Extra Counterweight
551 lb
Specification
Value
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Specification
Value
Recyclability
95%
  • 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.
  • 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 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!
  • 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.
  • 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.
  • 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.
  • 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)