Mini Excavators

Cat 308 CR

Operating Weight
8,146kg
Power
55.4kW (75.3hp)
Width
2,300mm

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

Experience 20%* greater performance with: 

 65% MORE LIFT CAPACITY*

 25% INCREASED SWING TORQUE*

 BEST IN CLASS MULTI-FUNCTION CAPABILITY

 NEXT GEN TECHNOLOGY

*When compared to the previous 308CR model.

Specifications

Operating Weight
8,146kg
Power
55.4kW (75.3hp)
Width
2,300mm
Bucket Breakout
62kN
Dig Depth
4,109mm
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Specifications

Engine
Bore 94mm Displacement 3.33l Engine Model Cat C3.3B Gross Power - SAE J1995 55.4kW Net Power 51.8kW Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 51.8kW Stroke 120mm
Weights
Maximum Operating Weight with Cab** 9105kg Minimum Operating Weight with Cab* 8440kg 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. Operating Weight 9105kg
Weight Increase from Minimum Configuration
Counterweight 250kg Long Stick 66kg Steel Tracks with Pads 341kg
Travel System
Gradeability - Maximum 30 degrees Ground Pressure - Maximum Weight 39.8kPa Ground Pressure - Minimum Weight 36.9kPa Maximum Traction Force - High Speed 27.8kN Maximum Traction Force - Low Speed 67.5kN Travel Speed - High 5.1km/h Travel Speed - Low 3.1km/h
Service Refill Capacities
Cooling System 10l Engine Oil 11.2l Fuel Tank 147l Hydraulic System 110l Hydraulic Tank 53l
Hydraulic System
Digging Force - Bucket 62kN Digging Force - Stick - Long 35.7kN Digging Force - Stick - Standard 42.3kN Maximum Auxiliary Circuit - Primary - Flow at Pump 131l/min Maximum Auxiliary Circuit - Primary - Pressure at Pump 285bar Maximum Auxiliary Circuit - Secondary - Flow at Pump 33l/min Maximum Auxiliary Circuit - Secondary - Pressure at Pump 285bar Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Operating Pressure - Equipment 285bar Operating Pressure - Swing 250bar Operating Pressure - Travel 285bar Pump Flow at 2,400 rpm 167l/min Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Swing System
Boom Swing - Left 60 degrees Boom Swing - Right 50 degrees Machine Swing Speed 10.6r/min
Blade
Height 431mm Width - Standard 2300mm Width - Wide 2450mm
Certification - Cab
Roll Over Protective Structure (ROPS) ISO 12117-2:2008 Tip Over Protective Structure (TOPS) ISO 12117:1997 Top Guard ISO 10262:1998 (Level I)
Sound
Average Exterior Sound Pressure (ISO 6395:2008) 99dB(A) Note European Union Directive "2000/14/EC" Operator Sound Pressure (ISO 6396:2008) 72dB(A)
Dimensions - Standard Stick
Boom In Reach 3059mm Boom Swing - Left 604mm Boom Swing - Right 935mm Cab Height 2541mm Dig Depth 4108mm Ground Clearance 350mm Height - Boom Transport - No Tools* 2430mm Height - Boom Working - With Tools** 2660mm Maximum Blade Depth 407mm Maximum Blade Height 370mm Maximum Dig Height 6736mm Maximum Dump Clearance 4760mm Maximum Reach 7141mm Maximum Reach - Ground Level 6949mm Note *Boom Height when stick is pinned in transport position with no attachments. Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. Note (2) ***With blade positioned at the rear of the machine. O/A Track Width 2300mm O/A Undercarriage Length 2880mm Overall Shipping Length - with Counterweight 6706mm Overall Shipping Length - without Counterweight 6574mm Stick Length 1820mm Swing Bearing - Height 756mm Tail Swing with Counterweight 1585mm Tail Swing without Counterweight 1450mm Track Belt/Shoe Width 450mm Vertical Wall 2991mm
Dimensions - Long Stick
Boom In Reach 3215mm Boom Swing - Left 604mm Boom Swing - Right 935mm Cab Height 2541mm Dig Depth 4643mm Ground Clearance 350mm Height - Boom Transport - No Tools* 2260mm Height - Boom Working - With Tools** 3050mm Maximum Blade Depth 407mm Maximum Blade Height 370mm Maximum Dig Height 7039mm Maximum Dump Clearance 5072mm Maximum Reach 7637mm Maximum Reach - Ground Level 7460mm Note *Boom Height when stick is pinned in transport position with no attachments. Note (1) **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. Note (2) ***With blade positioned at the rear of the machine. O/A Track Width 2300mm O/A Undercarriage Length 2880mm Overall Shipping Length - with Counterweight 6872 mm (270.6 in)*** Overall Shipping Length - without Counterweight 6872 mm (270.6 in)*** Stick Length 2358mm Swing Bearing - Height 756mm Tail Swing with Counterweight 1585mm Tail Swing without Counterweight 1450mm Track Belt/Shoe Width 450mm Vertical Wall 3404mm
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.

How does the 308 CR Compare?

  • Cat 308 CR
    Excavators Cat 308 CR
    Operating Weight
    8,146kg
    Power
    55.4kW (75.3hp)
    Width
    2,300mm
    SELECTED MODEL

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  • Cat 306 CR
    Excavators Cat 306 CR
    Operating Weight
    6,410kg
    Power
    43.2kW (57.9hp)
    Width
    1980mm

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  • Cat 309 CR
    Excavators Cat 309 CR
    Operating Weight
    8,756kg
    Power
    55.4kW (75.3hp)
    Width
    2,470mm

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FEATURES AT A GLANCE

  • 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 the Cat Stick Steer option. 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 helps you get the job done more efficiently, and dig-to-blade 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 ser CRe 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.
Why Mark Chose the Cat 308 CR Next Generation Mini Excavator

NEXT GENERATION MINI EXCAVATOR FEATURES

The range of Cat Mini Excavators bring big machine features, standard across all models from 1.5 to 10 tonne.

The range of Next Generation machines, inspired by you
Next Gen Mini Excavator Stick Steer and Cruise Control 
Keyless start and up to 50 programmable operator codes
Next Gen LCD monitor
Sealed and pressurised cab, keeping heat, dust and noise out
Adjustable hydraulics and operator modes for improved accuracy
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