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HOME BRANDS & PRODUCTS CAT PRODUCT LINE EQUIPMENT EXCAVATORS MINI EXCAVATORS 308E2 CR SB MINI HYDRAULIC EXCAVATOR WITH SWING BOOM

308E2 CR SB MINI HYDRAULIC EXCAVATOR WITH SWING BOOM

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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.

SPECIFICATIONS

Engine ModelCat® C3.3B

Net Power48.5 kW

Bore94.0 mm

BENEFITS AND FEATURES

COMPACT RADIUS

compact radius

Work in the tightest spaces.

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OPERATOR STATION

operator station

Superior comfort to keep you productive throughout the work day.

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COMPASS CONTROL PANEL

compass control panel

Complete, Operational, Maintenance, Performance and Security System.

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engine

Engine ModelCat® C3.3B

Net Power48.5 kW

Bore94.0 mm

Displacement3.33 L

Gross Power (ISO 14396)49.7 kW

Net Power (ISO 9249)48.5 kW

Rated Net Power @ 2,400 rpm (ISO 9249/EEC 80/1269)48.5 kW

Stroke120.0 mm

weights

Operating Weight8400.0 kg

Operating Weight with Cab8400.0 kg

travel system

Ground Pressure36.3 kPa

Gradeability (maximum)30.0 Degrees

Maximum Traction Force - High Speed64.5 kN

Maximum Traction Force - Low Speed37.4 kN

Travel Speed - High5.1 km/h

Travel Speed - Low2.8 km/h

hydraulic system

Digging Force - Stick (long)35.1 kN

Digging Force - Bucket60.2 kN

Digging Force - Stick (standard)40.1 kN

Auxiliary Circuit - Primary (186 bar/2,734 psi)128.0 L/min

Auxiliary Circuit - Secondary (174 bar/2,524 psi)64.0 L/min

Operating Pressure - Equipment28000.0 kPa

Operating Pressure - Swing24000.0 kPa

Operating Pressure - Travel28000.0 kPa

Pump Flow at 2,000 rpm150.0 L/min

swing system

Machine Swing Speed11.0 RPM

Boom Swing - Right50.0 Degrees

Boom Swing - Left60.0 Degrees

blade

Width2320.0 mm

Height450.0 mm

Dig Depth360.0 mm

Lift Height380.0 mm

service refill capacities

Cooling System14.0 L

Engine Oil11.2 L

Hydraulic Tank82.0 L

Fuel Tank125.0 L

Hydraulic System94.0 L

operating specifications

Counterweight251.0 kg

Machine Overhang279.4 mm

Machine Overhang with Counterweight406.0 mm

Maximum Dig Depth4150.0 mm

Stick Length - Long2210.0 mm

Stick Length - Standard1670.0 mm

cab

Average Exterior Sound Pressure99 dB(A) ISO 6395 - Dynamic Test

Dynamic Operator Sound Pressure70 dB(A) ISO 6396

BENEFITS AND FEATURES

COMPACT RADIUS

COMPACT RADIUS

Work in the tightest spaces.

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OPERATOR STATION

OPERATOR STATION

Superior comfort to keep you productive throughout the work day.

LEARN MORE
COMPASS CONTROL PANEL

COMPASS CONTROL PANEL

Complete, Operational, Maintenance, Performance and Security System.

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PERFORMANCE AND CONTROLLABILITY

PERFORMANCE AND ...

Powerful digging combined with smooth responsive control.

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UNDERCARRIAGE

UNDERCARRIAGE

Excellent stability.

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ENGINE AND SERVICEABILITY

ENGINE AND SERVICEABILITY

Superior power with easy access and minimal maintenance requirements keep you working.

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WORK TOOLS

WORK TOOLS

Matched to meet your application needs.

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308E2 CR SB STANDARD EQUIPMENT

  • 1way and 2way combined function auxiliary hydraulic lines
  • adjustable auxiliary flow control for work tools
  • adjustable wrist rests
  • air suspension heated seat
  • alternator
  • antitheft security system
  • automatic engine idle
  • automatic swing park brake
  • automatic two speed travel
  • auxiliary line quick disconnects
  • cab mounted work light
  • cab rops iso 121172 with radio ready mounting ac heaterdefroster interior light and windshield wiperwasher
  • coat hook
  • compass display panel
  • cup holder
  • control pattern changer not available in europe
  • continuous flow
  • dozer blade with float function
  • eco mode setting for up to 20% fuel savings
  • floor mat
  • foot travel pedals
  • high ambient cooling standard in all regions except europe
  • horn
  • hydraulic oil cooler
  • lifting bar on bucket linkage standard in us only
  • low maintenance linkage pin joints
  • maintenance free battery
  • rearview mirror
  • retractable seatbelt
  • standard stick
  • “thumb ready” sticks standard equipment for all regions except europe
  • travel alarm optional in europe

308E2 CR SB OPTIONS

    • amfm radio with auxiliary input optional in europe standard for all other regions
    • block heater
    • 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
    • footrest
    • front window mesh guard
    • front window steel bar guard
    • hydraulic quick coupler lines
    • lifting eye on bucket linkage optional in all regions except the us
    • overhead guard topguard level 2
    • rain guard
    • secondary auxiliary hydraulic lines
    • standard or long stick
    • track options
      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)
Back

MOTEUR

Work in the tightest spaces.

BENEFITS AND FEATURES

Compact Radius 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.

Compact Radius

Superior comfort to keep you productive throughout the work day.

BENEFITS AND FEATURES

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
  • Ergonomic joysticks
  • Dynamic operator sound pressure 70 dB(A) ISO 6396
  • Average exterior sound pressure 99 dB(A) ISO 6395 - dynamic test
Operator Station

Complete, Operational, Maintenance, Performance and Security System.

BENEFITS AND FEATURES

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.

Eco Mode 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.

Continuous Flow 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.

Pattern Changer 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.

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.

COMPASS Control Panel

Powerful digging combined with smooth responsive control.

BENEFITS AND FEATURES

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.

Controllability 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.

Lift Capacity 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.

Performance and Controllability

Excellent stability.

BENEFITS AND FEATURES

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.

Rubber Belt 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.

Steel Track 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.

Blade Widths 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.

Undercarriage

Superior power with easy access and minimal maintenance requirements keep you working.

BENEFITS AND FEATURES

Engine 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.

Easy Service 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.

Eco Mode Do as much work in Eco Mode as standard mode while burning less fuel in most applications.

Customer Support 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
Engine and Serviceability

Matched to meet your application needs.

BENEFITS AND FEATURES

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
  • Hydraulic Hammers
  • Augers
  • Vibratory Compactors
  • Shears
  • 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).
Work Tools