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Cat 308

Mini-Excavators

  • Sensitive hydraulics allow the shortest work cycles
  • Highest breakout and lifting forces
  • Unrivaled cabin comfort with the best possible overview
  • Unprecedented accessibility for maintenance and service
  • Stage V engine with fully automatic regeneration of the particulate filter
  • Maximum material handling with the lowest diesel consumption
  • 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‚Äôve 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)


Air Conditioning System
Air ConditioningThe 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.

Blade
Heightnull
Width - Standardnull
Width - Widenull

Certification - Cab
Top GuardISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS)ISO 12117-2:2008

Dimensions - Long Stick
Dig Depthnull
Boom Swing - Leftnull
Maximum Dig Heightnull
Maximum Blade Heightnull
Track Belt/Shoe Widthnull
Cab Heightnull
Tail Swing with Counterweightnull
O/A Undercarriage Lengthnull
Maximum Dump Clearancenull
Boom Swing - Rightnull
Maximum Blade Depthnull
Ground Clearancenull
Stick Lengthnull
Maximum Reachnull
Maximum Reach - Ground Levelnull
Boom In Reachnull
Swing Bearing - Heightnull
O/A Track Widthnull
Tail Swing without Counterweightnull
Vertical Wallnull
Note*Boom Height when stick is pinned in transport position with no attachments.
Note (2)***With blade positioned at the rear of the machine.
Note (1)**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Height - Boom Transport - No Tools*null
Height - Boom Working - With Tools**null
Overall Shipping Length - without Counterweight6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight6872 mm (270.6 in)***

Dimensions - Standard Stick
Cab Heightnull
Vertical Wallnull
Boom In Reachnull
Tail Swing with Counterweightnull
Boom Swing - Rightnull
Track Belt/Shoe Widthnull
Maximum Reachnull
Stick Lengthnull
Maximum Blade Heightnull
Boom Swing - Leftnull
Maximum Blade Depthnull
O/A Track Widthnull
Maximum Dig Heightnull
Maximum Dump Clearancenull
Maximum Reach - Ground Levelnull
Tail Swing without Counterweightnull
O/A Undercarriage Lengthnull
Swing Bearing - Heightnull
Ground Clearancenull
Dig Depthnull
Note*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweightnull
Note (1)**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweightnull
Note (2)***With blade positioned at the rear of the machine.
Height - Boom Working - With Tools**null
Height - Boom Transport - No Tools*null

Engine
Net Powernull
Engine ModelCat C3.3B
Strokenull
Borenull
Gross Power - SAE J1995:2014null
Displacementnull
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269null

Hydraulic System
Digging Force - Bucketnull
Operating Pressure - Travelnull
Operating Pressure - Swingnull
Operating Pressure - Equipmentnull
Digging Force - Stick - Longnull
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpmnull
Digging Force - Stick - Standardnull
Maximum Auxiliary Circuit - Primary - Pressure at Pumpnull
Maximum Auxiliary Circuit - Secondary - Pressure at Pumpnull
Maximum Auxiliary Circuit - Primary - Flow at Pumpnull
Maximum Auxiliary Circuit - Secondary - Flow at Pumpnull

Service Refill Capacities
Fuel Tanknull
Hydraulic Systemnull
Hydraulic Tanknull
Cooling Systemnull
Engine Oilnull

Sound
Operator Sound Pressure (ISO 6396:2008)null
NoteEuropean Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)null

Sustainability
Recyclability96%

Swing System
Machine Swing Speednull
Boom Swing - Right50 degrees
Boom Swing - Left60 degrees

Travel System
Maximum Traction Force - High Speednull
Ground Pressure - Maximum Weightnull
Ground Pressure - Minimum Weightnull
Travel Speed - Highnull
Travel Speed - Lownull
Maximum Traction Force - Low Speednull
Gradeability - Maximum30 degrees

Weight Increase from Minimum Configuration
Steel Tracks with Padsnull
Counterweightnull
Long Sticknull

Weights
Operating Weightnull
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.
Maximum Operating Weight with Cab**null
Minimum Operating Weight with Cab*null

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