308 CR Mini Excavator with Variable Angle Boom | Cat

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. 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	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 Cat® C3.3B

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. 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 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

Weight Increase from Minimum Configuration

Counterweight	552 lb 250 kg
Steel Tracks with Pads	752 lb 341 kg

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 30 degrees
Ground Pressure - Minimum Weight	5.5 psi 37.9 kPa
Maximum Traction Force - Low Speed	15175 lbf 67.5 kN

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

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 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. 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

Swing System

Machine Swing Speed	10.6 r/min 10.6 r/min
Boom Swing - Right	50 degrees 50 degrees
Boom Swing - Left	60 degrees 60 degrees

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 ISO 12117-2:2008
Tip Over Protective Structure (TOPS)	ISO 12117:1997 ISO 12117:1997
Top Guard	ISO 10262:1998 (Level II) ISO 10262:1998 (Level II)

Sound

Operator Sound Pressure (ISO 6396:2008)	72 dB(A) 72 dB(A)
Note	European Union Directive "2000/14/EC" European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)	99 dB(A) 99 dB(A)

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 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

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