The Cat 308E2 CR SB Mini Hydraulic Excavator delivers high performance with the versatility of a swing boom front linkage in a durable Compact Radius design to help you work in the tightest applications. With the COMPASS display panel, Tier 4 Final engine and new hydraulic system, the 308E2 CR SB is more productive, versatile and cost effective.
The compact radius design gives greater machine versatility and the capability to work within confined areas. The radius of the upper body stays within 280 mm (11 in) of the undercarriage providing flexibility for different work site applications with a reduced risk of damage and less stress for the operator. This allows the operator to concentrate on the work being done without having to worry about damaging the back of the machine or other job site obstacles.
Superior comfort to keep you productive throughout the work day.
Comfortable Working Environment
Spacious and comfortable operator station with excellent visibility and legroom keeps the operator comfortable and helps reduce fatigue. All hydraulic functions are fully pilot operated, lowering owning and operating costs and resulting in less downtime. The operator station also features:
Heated, air suspension seat
COMPASS display panel
Dynamic operator sound pressure 70 dB(A) ISO 6396
Average exterior sound pressure 99 dB(A) ISO 6395 - dynamic test
COMPASS Control Panel
Complete, Operational, Maintenance, Performance and Security System.
UNLOCK the new features and experience the value of the exclusive COMPASS control panel on the Cat E Series compact excavators
The COMPASS control panel on the Cat E Series mini hydraulic excavators was specifically designed by Caterpillar for compact excavators. It adds several new features to the machines increasing the amount of customer value. All of the following features are now standard on all E Series models. Complete - All of the control panel features are standard on all E Series models Operation - Simple operation of the pattern changer, hydraulic quick coupler and fuel gauge visibility all at the push of a button Maintenance - Maintenance intervals, diagnostics and work hours Performance - Maintain optimum performance levels with Eco mode and adjustable work tool flow features And Security - Anti theft device with individual user and master passwords System - Ergonomically designed control panel
Passcode Protected Security System
A standard anti-theft device now comes on every E Series compact excavator. A five digit alphanumeric password is required to start the machine when the anti-theft feature is enabled. There is a master password and up to five user passwords can be created by the owner if desired. Keep your machine safe on a busy job site by locking it when you are not around.
Adjustable Auxiliary Work Tool Flow Control
The E Series machines now have simple adjustability of the flow going down the boom and stick to the work tool. Both the standard main line and optional secondary auxiliary hydraulics can be adjusted on a scale of 1-15 through a few buttons on the control panel. Adjust the flow to your different tools with a simple push of a button.
This feature allows your machine to be set in a more economical power setting with a simple push of a button. While operating in this mode, the machine will maintain excellent performance levels while saving fuel through a slightly lower engine setting. Save money with the E Series compact excavators.
Once this feature is enabled through a button on the monitor, the E Series machines can run in continuous flow mode. With the auxiliary hydraulics on the right hand joystick, just hold the roller switch at the desired flow rate and direction for 2.5 seconds and the machine will maintain that flow rate until it is turned off. Maintain hydraulic flow to your tools at any flow and in any direction with the simple push of a button.
Change the operating pattern between excavator and backhoe with a simple press of a button from the comfort of the cab. Exclusive push button pattern changer is safe and easy. (Not available in all regions.)
Maintenance and Performance Information
Easily keep track of various maintenance and performance parameters of your machine. Reset the maintenance intervals and ensure the machine is receiving proper care maximizing the life of the machine.
Performance and Controllability
Powerful digging combined with smooth responsive control.
High digging forces that provide power through even the most compacted ground, coupled with direct, smooth control through responsive hydraulics, ensure that the Cat 308E2 CR SB delivers the high productivity that customers demand.
The Cat 308E2 CR SB front linkage has been perfectly balanced with the hydraulics to deliver the high level of control required for fine grading and landscaping applications.
Automatic two speed function improves job site maneuverability by balancing high speed travel requirements and control.
Joystick mounted auxiliary control enhances machine controllability. The intuitive controls give fine modulation.
Auxiliary lines including quick connectors are fitted as standard, meaning the Cat 308E2 CR SB comes ready to work.
Optional boom and stick lowering check valve includes integral overload warning device.
High Definition Hydraulic System
Delivers fuel savings, efficiency, controllability and precision.
Industry leading variable displacement, load sensing, flow sharing system.
To meet the diverse needs of today’s customer, the 308E2 CR SB has high level lift capacity and outstanding stability - all in a compact radius design to provide on site versatility to get the job done.
Depending on the customers application, the Cat 308E2 CR SB has three different track options to choose from, allowing the correct machine configuration to suit the job.
Provides the lowest ground disturbance of all track options with excellent traction in conditions that are soft underfoot. The standard track offering is 450 mm (17.7 in) width.
Good for demolition and heavy duty applications. A triple grouser track is available in two width options: 450 mm (17.7 in) and 600 mm (23.6 in).
Steel Track with Rubber Pads
The 450 mm (17.7 in) wide shoe has four holes to attach the rubber pads to the steel track shoes. This option prevents damage to paved road surfaces and minimizes noise and vibration during travel while providing maximum stability.
The dozer blade is an important and useful tool for the Hydraulic Mini Excavator used for backfilling trenches, levelling, landscaping and site clean up. There are two blade width options available to accommodate the differences in track widths. The blade comes standard with a replaceable weld-on dozer cutting edge constructed of hardened steel for longer life.
Tie Down Points
Large oval tie down points are located in two positions on the undercarriage for easy and safe machine tie down for transportation.
Engine and Serviceability
Superior power with easy access and minimal maintenance requirements keep you working.
The Cat C3.3B electronic engine delivers clean, quiet operation with superior power and fuel efficiency while meeting U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.
Convenient service features make maintenance easy, reducing your downtime:
Lifting side hood allows access to air filter, main implement valve, 1-way/2-way auxiliary flow selector, accumulator, fuel filter and hydraulic tank. This eliminates the need to lift the cab when maintaining and servicing the machine.
Swing open door provides access to major components and service points including engine oil check and fill, vertically mounted engine oil filter, starter motor and alternator.
S·O·SSM oil sampling valve allows easy sampling of the hydraulic fluid for preventative maintenance.
The 308E2 CR SB is Product Link™ ready and the Cat Product Link system simplifies equipment fleet tracking. Using satellite or cellular technology, the system automatically reports information such as location, machine hours, active and logged service codes and security alarms.
Do as much work in Eco Mode as standard mode while burning less fuel in most applications.
Your Cat dealer is ready to assist you with your purchase decision and everything after.
Financing packages are flexible to meet your needs
Unmatched parts availability keeps you working
Make comparisons of machines, with estimates of component life, preventative maintenance and cost of production
For more information on Cat products, dealer services and industry solutions, visit www.cat.com
Matched to meet your application needs.
Wide Range of Work Tools
A wide range of Cat Work Tools have been designed specifically to get the best out of your machine and deliver excellent value through high productivity and long life. Available work tools include:
Buckets (heavy duty and heavy duty capacity)
Tilting and Swing Ditch Cleaning Buckets
Dual Lock Mechanical Coupler
Dual Lock Hydraulic Coupler
To maximize performance and productivity, Cat mechanical and hydraulic quick couplers are compatible with all standard work tools, enabling the operator to simply release one work tool and pick up another. One-way flow (hammer) and two-way flow (auger) auxiliary lines with quick connectors are fitted as standard. This allows the machine to adapt to a wide variety of applications without re-configuring the auxiliary lines. Versatility is further enhanced with the option of a second auxiliary supply (for a rotating grapple).
Gross Power (ISO 14396)
Net Power (ISO 9249)
Rated Net Power @ 2,400 rpm (ISO 9249/EEC 80/1269)
Operating Weight with Cab
Digging Force - Stick (long)
Digging Force - Bucket
Digging Force - Stick (standard)
Auxiliary Circuit - Primary (186 bar/2,734 psi)
Auxiliary Circuit - Secondary (174 bar/2,524 psi)
Operating Pressure - Equipment
Operating Pressure - Swing
Operating Pressure - Travel
Pump Flow at 2,000 rpm
Machine Swing Speed
Boom Swing - Right
Boom Swing - Left
Service Refill Capacities
Maximum Traction Force - High Speed
Maximum Traction Force - Low Speed
Travel Speed - High
Travel Speed - Low
Machine Overhang with Counterweight
Maximum Dig Depth
Stick Length - Long
Stick Length - Standard
Average Exterior Sound Pressure
99 dB(A) ISO 6395 - Dynamic Test
Dynamic Operator Sound Pressure
70 dB(A) ISO 6396
1-way and 2-way (combined function) auxiliary hydraulic lines
Adjustable auxiliary flow control for work tools
Adjustable wrist rests
Air suspension, heated seat
Anti-theft security system
Automatic engine idle
Automatic swing park brake
Automatic two speed travel
Auxiliary line quick disconnects
Cab mounted work light
Cab, ROPS ISO 12117-2 with radio ready mounting, A/C, heater/defroster, interior light and windshield wiper/washer
COMPASS display panel
Control pattern changer (not available in Europe)
Dozer blade with float function
Eco mode setting for up to 20% fuel savings
Foot travel pedals
High ambient cooling (standard in all regions except Europe)
Hydraulic oil cooler
Lifting bar on bucket linkage (standard in U.S. only)
Low maintenance linkage pin joints
Maintenance free battery
“Thumb ready” sticks (standard equipment for all regions except Europe)
Travel alarm (optional in Europe)
AM/FM radio with auxiliary input (optional in Europe, standard for all other regions)
Boom and stick check valve
Boom mounted light - right side
Dozer blade with bolt on cutting edge
Dual lock hydraulic coupler (available from dealer)
Dual lock mechanical coupler (available from dealer)
Ecology drain valve for hydraulic tank
Extra counterweight for extreme lifting applications - 251 kg (553 lb)
Front window mesh guard
Front window steel bar guard
Hydraulic quick coupler lines
Lifting eye on bucket linkage (optional in all regions except the U.S.)
Overhead guard (TOPGUARD Level 2)
Secondary auxiliary hydraulic lines
Standard or long stick
Rubber belt - 450 mm (18 in)
Steel track - 450 mm (18 in)
Steel track - 600 mm (24 in)
Steel track with rubber pads - 450 mm (18 in)
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Also, check out our inventory of used mini hydraulic excavators with swing booms.