308 CR (Fixed Boom)

308 CR (Fixed Boom) - Tier 4 Final, EU Stage V

Overview

The Cat® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.

Specifications

Units: 
Net Power
Operating Weight
Dig Depth
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Benefits & 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 Cat Stick Steer. 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!

  December 5, 2023

Specifications

Units: 
Engine
Net Power
Displacement
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC
Bore
Stroke
Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B
Gross Power - SAE J1995:2014
Weights
Operating Weight
Minimum Operating Weight with Cab*
Maximum Operating Weight with Cab**
Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Weight Increase from Minimum Configuration
Steel Tracks with Pads
Long Stick
Counterweight
Travel System
Ground Pressure - Maximum Weight
Travel Speed - Low
Travel Speed - High
Maximum Traction Force - Low Speed
Ground Pressure - Minimum Weight
Maximum Traction Force - High Speed
Gradeability - Maximum 30 degrees
Service Refill Capacities
Engine Oil
Cooling System
Hydraulic Tank
Hydraulic System
Fuel Tank
Hydraulic System
Digging Force - Stick - Long
Operating Pressure - Swing
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard
Maximum Auxiliary Circuit - Primary - Pressure at Pump
Maximum Auxiliary Circuit - Primary - Flow at Pump
Operating Pressure - Equipment
Pump Flow at 2,400 rpm
Maximum Auxiliary Circuit - Secondary - Flow at Pump
Operating Pressure - Travel
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Digging Force - Bucket
Swing System
Machine Swing Speed
Blade
Height
Width - Standard
Width - Wide
Certification - Cab
Top Guard ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS) ISO 12117:1997
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Sound
Average Exterior Sound Pressure (ISO 6395:2008)
Operator Sound Pressure (ISO 6396:2008)
Note European Union Directive "2000/14/EC"
Dimensions - Standard Stick
Swing Bearing - Height
Height - Boom Working - With Tools**
Ground Clearance
Boom In Reach
O/A Track Width
Height - Boom Transport - No Tools*
Maximum Dig Height
Note (2) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Maximum Reach
Tail Swing with Counterweight
Maximum Blade Height
Vertical Wall
Dig Depth
Overall Shipping Length - with Counterweight
Note (1) *Boom Height when stick is pinned in transport position with no attachments.
Maximum Blade Depth
Tail Swing without Counterweight
Overall Shipping Length - without Counterweight
Cab Height
Maximum Reach - Ground Level
Maximum Dump Clearance
Track Belt/Shoe Width
Stick Length
O/A Undercarriage Length
Dimensions - Long Stick
Dig Depth
Stick Length
O/A Track Width
Maximum Blade Depth
O/A Undercarriage Length
Overall Shipping Length - without Counterweight 5665 mm (223 in)***
Maximum Blade Height
Cab Height
Maximum Dump Clearance
Height - Boom Transport - No Tools*
Overall Shipping Length - with Counterweight 5800 mm (228 in)***
Ground Clearance
Boom In Reach
Tail Swing with Counterweight
Maximum Dig Height
Note *Boom Height when stick is pinned in transport position with no attachments.
Maximum Reach
Height - Boom Working - With Tools**
Swing Bearing - Height
Vertical Wall
Maximum Reach - Ground Level
Note (2) ***With blade positioned at the rear of the machine.
Track Belt/Shoe Width
Tail Swing without Counterweight
Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
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.
Sustainability
Recyclability 96%

Benefits & 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 Cat Stick Steer. 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 help you get the job done more efficiently, and blade float 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.

UNMATCHED DEALER SUPPORT

    • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

SUSTAINABILITY

    • The Cat® C3.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
    • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
    • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
    • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
    • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
    • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
    • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
    • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
    • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
    • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
    *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

Standard Equipment

  • ENGINE
    • Cat C3.3 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Swing Brake
    • Automatic Two Speed Travel
    • Fuel Water Separator with Indicator
    • Radial Seal – Double Element Air Filter
    • Extended Life Coolant, –37° C ( –37° F)
    • Ecology Drain
  • HYDRAULICS
    • Smart Tech Electronic Pump
    • Electronic Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO™ Advanced Hydraulic Oil
  • OPERATOR ENVIRONMENT
    • Top Guard ISO 10262 1998 Level I
    • ROPS ISO 12117-2:2008
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer
    • Adjustable Wrist Rests
    • Molded Footrests
    • Removable, Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Cat Key with Passcode Option
    • HVAC with Automatic Temperature Control
    • Hydraulic Lockout Controls
    • Integrated Lower Front Window
    • Assisted Front Window Overhead Storage
    • Rear Window Emergency Exit
    • Fabric, High Back, Suspension Seat
    • Retractable Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • LED Interior Light
    • Literature Holder
    • Mounting Bosses for Top and Front Guards
    • 12V Power Socket
    • Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
    • Skylight
    • Signaling/Warning Horn
    • Cab and (left side) Boom Work Lights
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)<br>– Jog Dial Interface<br>– Fuel Level and Coolant Temperature Gauges<br>– Maintenance and Machine Monitoring<br>– Performance and Machine Adjustments<br>– Numeric Security Code<br>– Multiple Languages<br>– Camera Ready (IP68 & IP69K)<br>– Hour Meter with Wake Up Switch
  • UNDERCARRIAGE
    • Greased and Lubricated Track
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
  • BOOM, STICK AND LINKAGES
    • One Piece Boom (3700 mm/145.7 in)
    • Standard Stick (1665 mm/65.6 in)
    • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
  • ELECTRICAL
    • 12 Volt Electrical System
    • 60 Ampere Alternator
    • Circuit Breaker
    • 850 CCA Maintenance Free Battery
    • Battery Disconnect
    • Ignition Key Stop Switch
  • OTHER
    • Locks on External Enclosure Doors
    • Lockable Fuel Cap
    • Beacon Socket
    • Rear Reflectors
    • Refueling Pump

Optional Equipment

  • OPERATOR ENVIRONMENT
    • Push to Start with Bluetooth® Key
    • Air Suspension Heated Seat
    • Rain Visor
    • Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)<br>– Touch Screen<br>– Site Reference System<br>– High Definition Camera Capable (IP68 & IP69K)<br>– Numeric Security Code
  • UNDERCARRIAGE
    • Wide Dozer Blade
    • Steel Tracks (450 mm/17.7 in wide)
    • Wide Steel Tracks (600 mm/23.6 in)
    • Steel Track with Rubber Pads
    • Track Guides
  • BOOM, STICK AND LINKAGES
    • Long Stick (2208 mm/92.9 in)
    • Attachments including Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Bucket Linkage with Lift Eye
  • ELECTRICAL
    • Product Link Elite (regulations apply)
    • Travel Alarm
    • Rearview Camera
    • Rotating Beacon
  • GUARDING
    • Mesh Front Guard ISO 10262 1998 Level I
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Overhead Cab Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A
    • Track Guards
  • OTHER
    • Additional Counterweight
    • Water Jacket Heater

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