308 CR Mini Hydraulic Excavator

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Overview

Boom Swing - Left: 60 degrees
Engine Model: Cat C3.3B
Net Power: 70 HP

Exterior View
Interior View

Swing System

Boom Swing - Left: 60 degrees
Machine Swing Speed: 11 r/min
Boom Swing - Right: 50 degrees

Engine

Engine Model: Cat C3.3B
Net Power: 70 HP
Bore: 4 in
Displacement: 203 in³
Gross Power - ISO 14396: 74 HP
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269: 72 HP
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269: 70 HP
Stroke: 5 in

Weights

Operating Weight: 20,678 lb
Maximum Operating Weight with Cab**: 20,077 lb
Minimum Operating Weight with Cab*: 18,610 lb
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.

Blade

Height: 17 in
Width - Standard: 91 in
Width - Wide: 97 in

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.

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 II)

Dimensions - Long Stick

Boom In Reach: 127 in
Boom Swing - Left: 24 in
Boom Swing - Right: 37 in
Cab Height: 100 in
Dig Depth: 183 in
Ground Clearance: 14 in
Maximum Blade Depth: 16 in
Maximum Blade Height: 15 in
Maximum Dig Height: 277 in
Maximum Dump Clearance: 200 in
Maximum Reach: 301 in
Maximum Reach - Ground Level: 294 in
O/A Shipping Length: 262 in
O/A Track Width: 91 in
O/A Undercarriage Length: 113 in
Stick Length: 93 in
Swing Bearing - Height: 30 in
Tail Swing with Counterweight: 65 in
Tail Swing without Counterweight: 57 in
Track Belt/Shoe Width: 18 in
Transport Height: 99 in
Vertical Wall: 134 in

Dimensions - Standard Stick

Boom In Reach: 120 in
Boom Swing - Left: 24 in
Boom Swing - Right: 37 in
Cab Height: 100 in
Dig Depth: 162 in
Ground Clearance: 14 in
Maximum Blade Depth: 16 in
Maximum Blade Height: 15 in
Maximum Dig Height: 265 in
Maximum Dump Clearance: 187 in
Maximum Reach: 281 in
Maximum Reach - Ground Level: 274 in
O/A Shipping Length: 259 in
O/A Track Width: 91 in
O/A Undercarriage Length: 113 in
Stick Length: 72 in
Swing Bearing - Height: 30 in
Tail Swing with Counterweight: 65 in
Tail Swing without Counterweight: 57 in
Track Belt/Shoe Width: 18 in
Transport Height: 98 in
Vertical Wall: 118 in

Hydraulic System

Auxiliary Circuit - Primary - Flow: 35 gal/min
Auxiliary Circuit - Primary - Pressure: 4,134 psi
Auxiliary Circuit - Secondary - Flow: 9 gal/min
Auxiliary Circuit - Secondary - Pressure: 4,134 psi
Digging Force - Bucket: 13,946 lb
Digging Force - Stick - Long: 8,032 lb
Digging Force - Stick - Standard: 9,509 lb
Operating Pressure - Equipment: 4,134 psi
Operating Pressure - Swing: 3,626 psi
Operating Pressure - Travel: 4,134 psi
Pump Flow at 2,400 rpm: 44 gal/min
Type: Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

Cooling System: 3 gal (US)
Engine Oil: 3 gal (US)
Fuel Tank: 39 gal (US)
Hydraulic System: 29 gal (US)
Hydraulic Tank: 14 gal (US)

Sound

Average Exterior Sound Pressure (ISO 6395:2008): 99 dB(A)
Note: European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008): 72 dB(A)

Travel System

Gradeability - Maximum: 30 degrees
Ground Pressure - Maximum Weight: 6 psi
Ground Pressure - Minimum Weight: 5 psi
Maximum Traction Force - High Speed: 6,250 lb
Maximum Traction Force - Low Speed: 15,175 lb
Travel Speed - High: 3 mile/h
Travel Speed - Low: 2 mile/h

Weight Increase from Minimum Configuration

Counterweight: 552 lb
Long Stick: 146 lb
Steel Tracks with Pads: 752 lb

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 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.

Engine
- Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
- Automatic Two Speed Travel
- Extended Life Coolant, –37° C (–35° F)
- Radial Seal – Double Element Air Filter
- Fuel Water Separator with Indicator
- Ecology Drain
- Automatic Swing Brake
- Automatic Engine Shutdown
- Automatic Engine Idle
Hydraulics
- Load Sensing/Flow Sharing Hydraulics
- Variable Displacement Piston Pump
- HYDO Advanced Hydraulic Oil
- Hydraulic Temperature Monitoring
- Power On Demand
- Certified Accumulator
- Smart Tech Electronic Pump
Operator Environment
- 12V Power Socket
- Rear Window Emergency Exit
- Mounting Bosses for Top and Front Guards
- Hydraulic Lockout Controls
- Radio – Bluetooth^®, USB, Auxiliary, Microphone
- Assisted Front Window Overhead Storage
- Travel Cruise Control
- Fabric, High Back, Suspension Seat
- Cup Holder
- Control Pattern Changer
- TOPS – ISO 12117:1997
- Travel Pedals and Hand Levers
- Literature Holder
- Removable, Washable Floor Mat
- Adjustable Wrist Rests
- LED Interior Light
- Retractable Seat Belt (75 mm/3 in)
- ROPS – ISO 12117-2:2008
- Color LCD Monitor
  – Fuel Level and Coolant Temperature Gauges
  – Maintenance and Machine Monitoring
  – Performance and Machine Adjustments
  – Numeric Security Code
  – Multiple Languages
  – Camera Ready
  – Hour Meter with Wake Up Switch
  – Jog Dial Control Interface
- Skylight
- Stick Steer Mode
- Cat Key with Passcode Option
- Coat Hook
- Top Guard – ISO 10262:1998 (Level II)
- Sealed and Pressurized Cab
- HVAC with Automatic Temperature Control
- Integrated Lower Front Window
- Molded Footrests
- Operator Sound Pressure 72 dB(A) ISO 6396:2008
Undercarriage
- Dozer Blade
- Hydraulic Track Adjusters
- Tie Down Eyes on Track Frame
- Dozer Float
- Greased and Lubricated Track
- Bolt-on, Reversible Wear Edge
- Rubber Tracks
Boom, Stick And Linkages
- One Piece Boom (3400 mm/133.9 in)
- Standard Stick (1820 mm/71.7 in)
- Long Stick (2360 mm/92.9 in)
- Front Shovel Capable (Pin-On/Manual Coupler/Hydraulic Coupler – not available in all regions)
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (not available in all regions)
Electrical
- 12 Volt Electrical System
- 60 Ampere Alternator
- 900 CCA Maintenance Free Battery
- Circuit Breaker
- Ignition Key Stop Switch
- Signaling/Warning Horn
- Product Link^™ Elite Lite (regulations apply)
- Travel Alarm

Operator Environment
- Rain Visor
- Air Suspension Heated Seat
Electrical
- Rearview Camera
- Rotating Beacon
Other
- 2nd Auxiliary Hydraulic Lines with Case Drain
- Additional Counterweight
- Boom and Stick Hose Burst Check Valves
- Bucket Linkage with Lift Eye
- Track Guides
- Steel Tracks (450 mm/17.7 in wide)
- Steel Track with Rubber Pads
- Wide Steel Tracks (600 mm/23.6 in)
- Attachments including Buckets, Augers and Hammers
- Water Jacket Heater
- Wide Dozer Blade
- Refueling Pump
- Variable Angle Boom (please see 308 CR VAB brochure for VAB specs and additional information)
- Cab Guarding

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