305 CR Mini Excavator
305 CR
The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Net Power
36.5 HP
Operating Weight
12555 lb
Dig Depth
144.5 in
DOWNLOAD TECHNICAL SPECIFICATIONS
Specification
Value
Net Power
36.5 HP
Engine Model
C1.7 Turbo
Stroke
3.9 in
Displacement
101 in³
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
36.5 HP
Note (1)
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.
Bore
3.3 in
Gross Power - 2,400 rpm - SAE J1995:2014
38.9 HP
Note
Meets Brazil MAR-1 emission standards. Equivalent to EU Stage IIIA emission standards.
Specification
Value
Operating Weight
12555 lb
Note (1)
**Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Minimum Operating Weight with Cab*
11100 lb
Maximum Operating Weight with Canopy**
12337 lb
Note
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
Minimum Operating Weight with Canopy*
10882 lb
Maximum Operating Weight with Cab**
12555 lb
Specification
Value
Dig Depth
144.5 in
Overall Shipping Length*
210.2 in
Maximum Blade Height
15.7 in
Boom Swing - Right
34.1 in
Track Width
78 in
Maximum Dig Height
210.8 in
Tail Swing with Counterweight
47.2 in
Maximum Reach
235.8 in
Maximum Dump Clearance
151.4 in
Maximum Reach - Ground Level
229.7 in
O/A Shipping Height
100.4 in
Stick Length
63 in
O/A Undercarriage Length
101.8 in
Boom In Reach
101.6 in
Swing Bearing - Height
24.4 in
Boom Height - Shipping Position
74.6 in
Tail Swing without Counterweight
43.1 in
Note
*Overall Shipping Length depends on blade position during shipment.
Track Belt/Shoe Width
15.7 in
Vertical Wall
100.8 in
Maximum Blade Depth
25.6 in
Boom Swing - Left
24.2 in
Ground Clearance
13.2 in
Specification
Value
Maximum Blade Height
15.7 in
Boom Swing - Left
24.2 in
Vertical Wall
91.9 in
Maximum Blade Depth
25.6 in
O/A Undercarriage Length
101.8 in
Boom Swing - Right
34.1 in
Dig Depth
134.6 in
Tail Swing with Counterweight
47.2 in
Note
*Overall Shipping Length depends on blade position during shipment.
Stick Length
53.2 in
Overall Shipping Length*
208.9 in
Tail Swing without Counterweight
43.1 in
Maximum Dig Height
205.3 in
O/A Shipping Height
100.4 in
Track Belt/Shoe Width
15.7 in
Swing Bearing - Height
24.4 in
Maximum Dump Clearance
145.7 in
Maximum Reach
226.6 in
Maximum Reach - Ground Level
220.1 in
Boom Height - Shipping Position
71.7 in
Boom In Reach
101.2 in
Ground Clearance
13.2 in
Specification
Value
Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A)
Operator Sound Pressure (ISO 6396:2008)
76 dB(A)
Note
European Union Directive “2000/14/EC”
Specification
Value
Auxiliary Circuit - Secondary - Flow
7 gal/min
Pump Flow at 2,400 rpm
35 gal/min
Auxiliary Circuit - Secondary - Pressure
3843 psi
Digging Force - Stick - Standard
6362 lbf
Auxiliary Circuit - Primary - Flow
21 gal/min
Auxiliary Circuit - Primary - Pressure
3843 psi
Digging Force - Stick - Long
5665 lbf
Operating Pressure - Swing
2901 psi
Operating Pressure - Equipment
3843 psi
Note
*Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Travel
3843 psi
Digging Force - Bucket
11061 lbf
Specification
Value
Angle Blade Width
78 in
Straight Blade Height
16.3 in
Angle Blade Height
15.7 in
Angle Blade - Left
25 degrees
Angle Blade - Right
25 degrees
Straight Blade Width
78 in
Specification
Value
Engine Oil
1.6 gal (US)
Cooling System
2.9 gal (US)
Hydraulic Tank
20 gal (US)
Hydraulic System
16 gal (US)
Fuel Tank
17 gal (US)
Specification
Value
Steel Tracks with Pads
827 lb
Long Stick
75 lb
Angle Blade
203 lb
Counterweight
534 lb
Specification
Value
Machine Swing Speed
9 r/min
Boom Swing - Right
50 °
Boom Swing - Left
72 °
Specification
Value
Ground Pressure - Maximum Weight
4.6 psi
Travel Speed - Low
1.7 mile/h
Ground Pressure - Minimum Weight
3.9 psi
Maximum Traction Force - Low Speed
11353 lbf
Maximum Traction Force - High Speed
5553 lbf
Gradeability - Maximum
30 degrees
Travel Speed - High
2.8 mile/h
Specification
Value
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 Level I
  • Choose either a canopy (not available in some regions) or a sealed and pressurized cab with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.
  • Controls are easy to use and the intuitive Next Generation LCD monitor provides machine information in a clear and easy to read format.
  • 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 help you get the job done faster. The compact radius design allows you to access and work in the tightest areas. Dozer float enables easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.
  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights, a fluorescent retractable seat belt and seat belt reminder are just a few 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.
  • Equipped with features such as auto idle, auto engine shutdown, increased service intervals, 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, service needs and beyond, your Cat dealer is ready to help.