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308 CR VAB
308 CR VAB
Mini Excavators
The Cat® 308 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.
Net Power
69 hp/51.2 kW
Engine Model
Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
69 hp/51.2 kW
Gross Power - ISO 14396
74.3 hp/55.4 kW
Key Features
ALL DAY COMFORT
EASY TO OPERATE
STICK STEER TRAVEL MODE
BIG PERFORMANCE IN A MINI DESIGN
SAFETY ON THE JOB SITE
SIMPLE SERVICE FOR LESS DOWNTIME
LOWER OPERATING COSTS
UNMATCHED DEALER SUPPORT
SUSTAINABILITY
Specifications
Metric
|
Imperial
Engine
Net Power
69 hp
51.2 kW
Engine Model
Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
69 hp
51.2 kW
Gross Power - ISO 14396
74.3 hp
55.4 kW
Bore
3.5 in
90 mm
Stroke
4.3 in
110 mm
Displacement
171 in³
2.8 l
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Note (1)
Advertised power is tested per the specified standard in effect at thetime of manufacture.
Note (2)
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Weights
Operating Weight
21080 lb
9560 kg
Minimum Operating Weight with Standard Stick*
19228 lb
8720 kg
Maximum Operating Weight with Standard Stick**
21080 lb
9560 kg
Note (1)
Advertised power is tested per the specified standard in effect at thetime of manufacture.
Note (2)
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Weight Increase from Minimum Configuration
Counterweight
552 lb
250 kg
Steel Tracks with Pads
752 lb
341 kg
Travel System
Travel Speed - High
3.2 mile/h
5.1 km/h
Travel Speed - Low
1.9 mile/h
3.1 km/h
Maximum Traction Force - High Speed
6250 lbf
27.8 kN
Maximum Traction Force - Low Speed
15175 lbf
67.5 kN
Ground Pressure - Minimum Weight
5.5 psi
38.2 kPa
Ground Pressure - Maximum Weight
6.1 psi
41.8 kPa
Gradeability - Maximum
30 degrees
Service Refill Capacities
Cooling System
2.6 gal (US)
10 l
Engine Oil
3 gal (US)
8.8 l
Fuel Tank
39 gal (US)
147 l
Hydraulic Tank
14 gal (US)
53 l
Hydraulic System
29 gal (US)
110 l
Hydraulic System
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
44 gpm
167 L/min
Operating Pressure - Equipment
4134 psi
285 bar
Operating Pressure - Travel
4134 psi
285 bar
Operating Pressure - Swing
3626 psi
250 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump
35 gpm
131 L/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134 psi
285 bar
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9 gpm
33 L/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134 psi
285 bar
Digging Force - Stick - Standard
9509 lbf
42.3 kN
Digging Force - Bucket
13946 lbf
62 kN
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Swing System
Machine Swing Speed
10.6 r/min
10.6 r/min
Boom Swing - Left
60 degrees
Boom Swing - Right
50 degrees
Blade
Width - Standard
90.6 in
2300 mm
Width - Wide
96.5 in
2450 mm
Height
17 in
431 mm
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Dimensions - VAB In
Dig Depth
150.2 in
3815 mm
Vertical Wall
99.2 in
2520 mm
Maximum Reach at Ground Level
248 in
6300 mm
Maximum Reach
256.5 in
6515 mm
Maximum Dig Height
205.5 in
5220 mm
Maximum Dump Clearance
135.8 in
3450 mm
Boom in Reach
122.8 in
3120 mm
Tail Swing with Counterweight
62.4 in
1585 mm
Tail Swing without Counterweight
57.1 in
1450 mm
Maximum Blade Height
14.6 in
370 mm
Maximum Blade Depth
16 in
407 mm
Cab Height
100 in
2541 mm
Swing Bearing Height
29.8 in
756 mm
Overall Undercarriage Length
113.4 in
2880 mm
Overall Shipping Length
253.9 in
6450 mm
Boom Swing Right
37 in
935 mm
Boom Swing Left
24 in
605 mm
Track Belt/Shoe Width
17.7 in
450 mm
Overall Track Width
90.6 in
2300 mm
Ground Clearance
13.8 in
350 mm
Stick Length
71.7 in
1820 mm
Dimensions - VAB Out
Dig Depth
150.2 in
3815 mm
Vertical Wall
99.2 in
2520 mm
Maximum Reach at Ground Level
248 in
6300 mm
Maximum Reach
256.5 in
6515 mm
Maximum Dig Height
205.5 in
5220 mm
Maximum Dump Clearance
135.8 in
3450 mm
Boom in Reach
122.8 in
3120 mm
Tail Swing with Counterweight
62.4 in
1585 mm
Tail Swing without Counterweight
57.1 in
1450 mm
Maximum Blade Height
14.6 in
370 mm
Maximum Blade Depth
16 in
407 mm
Cab Height
100 in
2541 mm
Swing Bearing Height
29.8 in
756 mm
Overall Undercarriage Length
113.4 in
2880 mm
Overall Shipping Length
253.9 in
6450 mm
Boom Swing Right
37 in
935 mm
Boom Swing Left
24 in
605 mm
Track Belt/Shoe Width
17.7 in
450 mm
Overall Track Width
90.6 in
2300 mm
Ground Clearance
13.8 in
350 mm
Stick Length
71.7 in
1820 mm
Air Conditioning System
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
Sound
Operator Sound Pressure (ISO 6396:2008)
72 dB(A)
72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A)
99 dB(A)
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Sustainability
Recyclability
96%
Equipment
Standard Equipment
Optional Equipment
Downloads
308 CR VAB Mini Excavator Product Brochure
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
Cat Attachments for Mini Excavators Brochure
Attachment Compatibility Guide for Mini Excavators