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Cat 308

Mini-Excavators

  • Tundlik hüdraulika võimaldab lühimaid töötsükleid
  • Suurimad läbimurde- ja tõstejõud
  • Võrratu salongimugavus parima võimaliku ülevaatega
  • Enneolematu juurdepääs hoolduseks ja teeninduseks
  • V astme mootor täisautomaatse tahkete osakeste filtri regenereerimisega
  • Maksimaalne materjalikäsitlus väikseima diislikuluga
  • 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
Height431 mm
Width - Standard2300 mm
Width - Wide2450 mm

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

Dimensions - Long Stick
Dig Depth4643 mm
Boom Swing - Left604 mm
Maximum Dig Height7039 mm
Maximum Blade Height370 mm
Track Belt/Shoe Width450 mm
Cab Height2541 mm
Tail Swing with Counterweight1585 mm
O/A Undercarriage Length2880 mm
Maximum Dump Clearance5072 mm
Boom Swing - Right935 mm
Maximum Blade Depth407 mm
Ground Clearance350 mm
Stick Length2358 mm
Maximum Reach7637 mm
Maximum Reach - Ground Level7460 mm
Boom In Reach3215 mm
Swing Bearing - Height756 mm
O/A Track Width2300 mm
Tail Swing without Counterweight1450 mm
Vertical Wall3404 mm
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*2260 mm
Height - Boom Working - With Tools**3050 mm
Overall Shipping Length - without Counterweight6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight6872 mm (270.6 in)***

Dimensions - Standard Stick
Cab Height2541 mm
Vertical Wall2991 mm
Boom In Reach3059 mm
Tail Swing with Counterweight1585 mm
Boom Swing - Right935 mm
Track Belt/Shoe Width450 mm
Maximum Reach7141 mm
Stick Length1820 mm
Maximum Blade Height370 mm
Boom Swing - Left604 mm
Maximum Blade Depth407 mm
O/A Track Width2300 mm
Maximum Dig Height6736 mm
Maximum Dump Clearance4760 mm
Maximum Reach - Ground Level6949 mm
Tail Swing without Counterweight1450 mm
O/A Undercarriage Length2880 mm
Swing Bearing - Height756 mm
Ground Clearance350 mm
Dig Depth4108 mm
Note*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweight6706 mm
Note (1)**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweight6574 mm
Note (2)***With blade positioned at the rear of the machine.
Height - Boom Working - With Tools**2660 mm
Height - Boom Transport - No Tools*2430 mm

Engine
Net Power51.8 kW
Engine ModelCat C3.3B
Stroke120 mm
Bore94 mm
Gross Power - SAE J1995:201455.4 kW
Displacement3.33 l
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/126951.8 kW

Hydraulic System
Digging Force - Bucket62 kN
Operating Pressure - Travel285 bar
Operating Pressure - Swing250 bar
Operating Pressure - Equipment285 bar
Digging Force - Stick - Long35.7 kN
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 rpm167 l/min
Digging Force - Stick - Standard42.3 kN
Maximum Auxiliary Circuit - Primary - Pressure at Pump285 bar
Maximum Auxiliary Circuit - Secondary - Pressure at Pump285 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump131 l/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump33 l/min

Service Refill Capacities
Fuel Tank147 l
Hydraulic System110 l
Hydraulic Tank53 l
Cooling System10 l
Engine Oil11.2 l

Sound
Operator Sound Pressure (ISO 6396:2008)72 dB(A)
NoteEuropean Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)99 dB(A)

Sustainability
Recyclability96%

Swing System
Machine Swing Speed10.6 r/min
Boom Swing - Right50 degrees
Boom Swing - Left60 degrees

Travel System
Maximum Traction Force - High Speed27.8 kN
Ground Pressure - Maximum Weight37.6 kPa
Ground Pressure - Minimum Weight33.8 kPa
Travel Speed - High5.1 km/h
Travel Speed - Low3.1 km/h
Maximum Traction Force - Low Speed67.5 kN
Gradeability - Maximum30 degrees

Weight Increase from Minimum Configuration
Steel Tracks with Pads341 kg
Counterweight250 kg
Long Stick66 kg

Weights
Operating Weight8387 kg
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**8387 kg
Minimum Operating Weight with Cab*7502 kg

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