308 CR VAB

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An extensive line of Cat® mini hydraulic excavators offers the performance to dig in and be productive on every job.

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Specifications

Air Conditioning System

Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Blade

Height

17 in 431 mm
Width - Wide

96.5 in 2450 mm
Width - Standard

90.6 in 2300 mm

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)

ISO 12117-2:2008
Tip Over Protective Structure (TOPS)

ISO 12117:1997
Top Guard

ISO 10262:1998 (Level II)

Dimensions - VAB In

Dig Depth

150.2 in 3815 mm
Tail Swing with Counterweight

62.4 in 1585 mm
Maximum Blade Height

14.6 in 370 mm
Track Belt/Shoe Width

17.7 in 450 mm
Maximum Dump Clearance

135.8 in 3450 mm
Vertical Wall

99.2 in 2520 mm
Boom in Reach

122.8 in 3120 mm
Ground Clearance

13.8 in 350 mm
Swing Bearing Height

29.8 in 756 mm
Boom Swing Right

37 in 935 mm
Overall Track Width

90.6 in 2300 mm
Overall Shipping Length

253.9 in 6450 mm
Transport Height

97.4 in 2475 mm
Cab Height

100 in 2541 mm
Overall Undercarriage Length

113.4 in 2880 mm
Maximum Reach

256.5 in 6515 mm
Tail Swing without Counterweight

57.1 in 1450 mm
Maximum Reach at Ground Level

248 in 6300 mm
Stick Length

71.7 in 1820 mm
Maximum Blade Depth

16 in 407 mm
Boom Swing Left

24 in 605 mm
Maximum Dig Height

205.5 in 5220 mm

Dimensions - VAB Out

Dig Depth

136.2 in 3460 mm
Overall Shipping Length

253.9 in 6450 mm
Stick Length

71.7 in 1820 mm
Track Belt/Shoe Width

17.7 in 450 mm
Swing Bearing Height

29.8 in 756 mm
Maximum Blade Depth

16 in 407 mm
Maximum Reach at Ground Level

303.7 in 7715 mm
Transport Height

97.4 in 2475 mm
Boom in Reach

106.7 in 2710 mm
Overall Undercarriage Length

113.4 in 2880 mm
Maximum Reach

310.4 in 7885 mm
Maximum Dump Clearance

247.4 in 6285 mm
Ground Clearance

13.8 in 350 mm
Vertical Wall

146.7 in 3725 mm
Tail Swing with Counterweight

62.4 in 1585 mm
Tail Swing without Counterweight

57.1 in 1450 mm
Boom Swing Left

24 in 605 mm
Maximum Blade Height

14.6 in 370 mm
Cab Height

100 in 2541 mm
Maximum Dig Height

322 in 8180 mm
Boom Swing Right

37 in 935 mm
Overall Track Width

90.6 in 2300 mm

Engine

Net Power

69.5 hp 51.8 kW
Displacement

203 in³ 3.33 l
Note

Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Bore

3.7 in 94 mm
Gross Power - SAE J1995:2014

74.3 hp 55.4 kW
Stroke

4.7 in 120 mm
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC

69.5 hp 51.8 kW
Engine Model - U.S. EPA Tier 4 Final/EU Stage V

Cat® C3.3B

Hydraulic System

Digging Force - Bucket

13946 lbf 62 kN
Operating Pressure - Equipment

4134 psi 285 bar
Pump Flow at 2,400 rpm

44 gal/min 167 l/min
Operating Pressure - Travel

4134 psi 285 bar
Digging Force - Stick - Standard

9509 lbf 42.3 kN
Type

Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing

3626 psi 250 bar
Note

Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Pressure at Pump

4134 psi 285 bar
Maximum Auxiliary Circuit - Secondary - Pressure at Pump

4134 psi 285 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump

35 gal/min 131 l/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump

9 gal/min 33 l/min

Service Refill Capacities

Engine Oil

3 gal (US) 11.2 l
Cooling System

2.6 gal (US) 10 l
Hydraulic System

29 gal (US) 110 l
Hydraulic Tank

14 gal (US) 53 l
Fuel Tank

39 gal (US) 147 l

Sound

Operator Sound Pressure (ISO 6396:2008)

72 dB(A) 72 dB(A)
Note

European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)

99 dB(A) 99 dB(A)

Sustainability

Recyclability

96%

Swing System

Machine Swing Speed

10.6 r/min 10.6 r/min
Boom Swing - Right

50 degrees
Boom Swing - Left

60 degrees

Travel System

Maximum Traction Force - High Speed

6250 lbf 27.8 kN
Travel Speed - Low

1.9 mile/h 3.1 km/h
Ground Pressure - Maximum Weight

5.9 psi 40.6 kPa
Travel Speed - High

3.2 mile/h 5.1 km/h
Gradeability - Maximum

30 degrees
Ground Pressure - Minimum Weight

5.5 psi 37.9 kPa
Maximum Traction Force - Low Speed

15175 lbf 67.5 kN

Weight Increase from Minimum Configuration

Counterweight

552 lb 250 kg
Steel Tracks with Pads

752 lb 341 kg

Weights

Operating Weight

20385 lb 9245 kg
Note (1)

*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, blade, and no bucket.
Note (2)

**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, blade, and no bucket.
Maximum Operating Weight with Standard Stick**

20385 lb 9245 kg
Minimum Operating Weight with Standard Stick*

19084 lb 8655 kg

Benefits

ALL DAY COMFORT

A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

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 with a push of a button. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A MINI DESIGN

Increased lifting, swinging, travel and multi-functioning performance help you get the job done more efficiently, and dig-to-blade 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. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we‚Äôve 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 with grouped service points and robust service panels.

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® C3.3B 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)
Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (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)

Equipment Info