Cat 308 CR VAB

Mini excavators

Hydraulische minigraafmachine 308 CR VAB

About the Cat 308 CR VAB

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.

Specifications

Engine

Net Power	70.3 HP
Engine Model	Cat C3.3B
Displacement	203 in³
Bore	3.7 in
Gross Power - ISO 14396	74.3 HP
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269	71.5 HP
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269	70.3 HP
Stroke	4.7 in

Weights

Operating Weight	20906 lb
Note	*Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (1)	*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Maximum Operating Weight with Cab**	20678 lb
Minimum Operating Weight with Cab*	17960 lb
Maximum Operating Weight with Cab*	20906 lb
Note (2)	**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

Dimensions - VAB In

Dig Depth	154.5 in
Tail Swing with Counterweight	64.8 in
Maximum Blade Height	14.5 in
Track Belt/Shoe Width	17.7 in
Maximum Dump Clearance	143.7 in
Vertical Wall	133.4 in
Boom in Reach	112.3 in
Ground Clearance	13.7 in
Swing Bearing Height	28.9 in
Boom Swing Right	38 in
Overall Track Width	90.6 in
Overall Shipping Length	235 in
Transport Height	105.2 in
Cab Height	99.2 in
Overall Undercarriage Length	113.9 in
Maximum Reach	260.3 in
Tail Swing without Counterweight	57.1 in
Maximum Reach at Ground Level	252 in
Stick Length	71.8 in
Maximum Blade Depth	16.1 in
Boom Swing Left	20 in
Maximum Dig Height	216.6 in

Blade

Height	17 in
Width - Wide	96.5 in
Width - Standard	90.6 in

Dimensions - Long Stick

Maximum Dig Height	277.1 in
Maximum Reach	300.7 in
Track Belt/Shoe Width	17.7 in
Tail Swing without Counterweight	57.1 in
Dig Depth	182.8 in
Ground Clearance	13.7 in
O/A Shipping Length	262 in
Cab Height	99.2 in
Vertical Wall	134.1 in
Stick Length	92.8 in
Maximum Blade Depth	16.1 in
Maximum Reach - Ground Level	293.7 in
O/A Track Width	90.6 in
Transport Height	99.3 in
Boom Swing - Left	20 in
O/A Undercarriage Length	113.9 in
Boom In Reach	126.6 in
Tail Swing with Counterweight	64.8 in
Boom Swing - Right	38 in
Maximum Blade Height	14.5 in
Swing Bearing - Height	28.9 in
Maximum Dump Clearance	199.6 in

Dimensions - VAB Out

Dig Depth	136.3 in
Overall Shipping Length	282.7 in
Stick Length	71.8 in
Track Belt/Shoe Width	17.7 in
Swing Bearing Height	28.9 in
Maximum Blade Depth	16.1 in
Maximum Reach at Ground Level	305.1 in
Transport Height	94.5 in
Boom in Reach	117.9 in
Overall Undercarriage Length	113.9 in
Maximum Reach	311.8 in
Maximum Dump Clearance	251.8 in
Ground Clearance	13.7 in
Vertical Wall	138.5 in
Tail Swing with Counterweight	64.8 in
Tail Swing without Counterweight	57.1 in
Boom Swing Left	20 in
Maximum Blade Height	14.5 in
Cab Height	99.2 in
Maximum Dig Height	321.9 in
Boom Swing Right	38 in
Overall Track Width	90.6 in

Dimensions - Standard Stick

Boom In Reach	120.4 in
Tail Swing with Counterweight	64.8 in
Maximum Reach - Ground Level	273.6 in
Swing Bearing - Height	28.9 in
Track Belt/Shoe Width	17.7 in
Ground Clearance	13.7 in
Maximum Dump Clearance	187.4 in
Transport Height	97.9 in
Boom Swing - Left	20 in
Maximum Blade Depth	16.1 in
Tail Swing without Counterweight	57.1 in
Cab Height	99.2 in
Maximum Blade Height	14.5 in
Maximum Dig Height	265.2 in
Maximum Reach	281.1 in
O/A Track Width	90.6 in
O/A Undercarriage Length	113.9 in
Vertical Wall	117.8 in
O/A Shipping Length	258.7 in
Stick Length	71.8 in
Boom Swing - Right	38 in
Dig Depth	161.8 in

Hydraulic System

Auxiliary Circuit - Secondary - Pressure	4134 psi
Auxiliary Circuit - Primary - Pressure	4134 psi
Digging Force - Bucket	13946 lb
Operating Pressure - Equipment	4134 psi
Auxiliary Circuit - Primary - Flow	35 gal/min
Pump Flow at 2,400 rpm	44 gal/min
Operating Pressure - Travel	4134 psi
Auxiliary Circuit - Secondary - Flow	9 gal/min
Digging Force - Stick - Long	8032 lb
Digging Force - Stick - Standard	9205 lb
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing	3626 psi

Certification - Cab

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

Travel System

Maximum Traction Force - High Speed	6250 lb
Travel Speed - Low	1.9 mile/h
Ground Pressure - Maximum Weight	6 psi
Travel Speed - High	3.2 mile/h
Gradeability - Maximum	30 degrees
Ground Pressure - Minimum Weight	5 psi
Maximum Traction Force - Low Speed	15175 lb

Sound

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

Weight Increase from Minimum Configuration

Counterweight	552 lb
Steel Tracks with Pads	728 lb
Long Stick	146 lb

Service Refill Capacities

Engine Oil	3 gal (US)
Cooling System	2.6 gal (US)
Hydraulic System	28 gal (US)
Hydraulic Tank	14 gal (US)
Fuel Tank	39 gal (US)

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.

Swing System

Machine Swing Speed

10.6 r/min

Features

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 helps 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’ve 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.