307.5 Mini Hydraulic Excavator

The Cat® 307.5 Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.

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.

Virtual Tours

Standard Equipment

ENGINE
  • Automatic Two Speed Travel
  • Automatic Engine Shutdown
  • Radial Seal – Double Element Air Filter
  • Cat C2.4 Diesel Engine (China Nonroad Stage III, Brazil MAR-1, Equivalent to EU Stage IIIA – Electrical Governor and Turbo)
  • Automatic Engine Idle
  • Fuel Water Separator with Indicator
  • Automatic Swing Brake
  • Extended Life Coolant, –37° C (–35° F)
HYDRAULICS
  • Certified Accumulator
  • Power On Demand
  • Load Sensing/Flow Sharing Hydraulics
  • Smart Tech Electronic Pump
  • Variable Displacement Piston Pump
  • HYDO Advanced Hydraulic Oil
  • Hydraulic Temperature Monitoring
OPERATOR ENVIRONMENT
  • Removable, Washable Floor Mat
  • Assisted Front Window Overhead Storage
  • Hydraulic Lockout Controls
  • 12V Power Socket
  • Adjustable Wrist Rests
  • Coat Hook
  • Top Guard – ISO 10262:1998 (Level II)
  • Mounting Bosses for Top and Front Guards
  • Travel Cruise Control
  • Molded Footrests
  • Retractable Seat Belt (75 mm/3 in)
  • Operator Sound Pressure 72 dB(A) ISO 6396
  • Sealed and Pressurized Cab
  • 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
  • ROPS – ISO 12117-2:2008
  • Control Pattern Changer
  • Cup Holder
  • LED Interior Light
  • TOPS – ISO 12117:1997
  • Cat Key with Passcode Option
  • Stick Steer Mode
  • Radio – Bluetooth®, USB, Auxiliary, Microphone
  • Fabric, High Back, Suspension Seat
  • Skylight
  • Travel Pedals and Hand Levers
  • HVAC with Automatic Temperature Control
  • Integrated Lower Front Window
  • Rear Window Emergency Exit
  • Literature Holder
UNDERCARRIAGE
  • Tie Down Eyes on Track Frame
  • Greased and Lubricated Track
  • Hydraulic Track Adjusters
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
  • Steel Tracks (450 mm/17.7 in wide)
BOOM, STICK AND LINKAGES
  • One Piece Boom (3700 mm/145.7 in)
  • Standard Stick (1665 mm/65.6 in) or Long Stick (2200 mm/86.6 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
  • Battery Disconnect
  • Ignition Key Stop Switch
  • Signaling/Warning Horn
  • Product Link™ Elite Lite (regulations apply)
  • Travel Alarm

Additional information

Offering Type

Engine Model

Cat C2.4 Turbo

Engine - Net Power

34.9 kW ( 46.8 HP )

Weights - Operating Weight

8233 kg ( 18152 lb )

Blade - Height

431 mm ( 17 in )

Hydraulic System - Digging Force - Stick - Standard

37.8 kN ( 8504 lb )

Dimensions - Long Stick - Maximum Dump Clearance

5710 mm ( 225 in )

Dimensions - Long Stick - Swing Bearing - Height

756 mm ( 30 in )

Travel System - Maximum Traction Force - High Speed

26.1 kN ( 5856 lb )

Hydraulic System - Auxiliary Circuit - Primary - Pressure

285 bar ( 4134 psi )

Dimensions - Long Stick - O/A Undercarriage Length

2760 mm ( 109 in )

Dimensions - Long Stick - Boom In Reach

2250 mm ( 89 in )

Dimensions - Long Stick - Maximum Reach

6805 mm ( 268 in )

Dimensions - Long Stick - Tail Swing with Counterweight

1995 mm ( 79 in )

Weight Increase from Minimum Configuration - Long Stick

82 kg ( 181 lb )

Dimensions - Long Stick - Track Belt/Shoe Width

450 mm ( 18 in )

Dimensions - Long Stick - Cab Height

2534 mm ( 100 in )

Weight Increase from Minimum Configuration - Counterweight

250 kg ( 552 lb )

Travel System - Gradeability - Maximum

30 degrees

Dimensions - Standard Stick - Boom In Reach

1681 mm ( 66 in )

Dimensions - Standard Stick - O/A Track Width

2200 mm ( 87 in )

Service Refill Capacities - Engine Oil

9.5 l ( 2.5 gal (US) )

Engine - Displacement

2.43 l ( 148 in³ )

Average Exterior Sound Pressure (ISO 6395:2008)

98 dB(A) ( 98 dB(A) )

Hydraulic System - Operating Pressure - Swing

250 bar ( 3626 psi )

Dimensions - Standard Stick - Dig Depth

4107 mm ( 162 in )

Swing System - Machine Swing Speed

10 r/min ( 10 r/min )

Service Refill Capacities - Hydraulic Tank

53 l ( 14 gal (US) )

Weights - Maximum Operating Weight with Cab**

8233 kg ( 18152 lb )

Hydraulic System - Operating Pressure - Equipment

285 bar ( 4134 psi )

Dimensions - Standard Stick - Ground Clearance

370 mm ( 15 in )

Operator Sound Pressure (ISO 6396:2008)

72 dB(A) ( 72 dB(A) )

Hydraulic System - Digging Force - Stick - Long

33.7 kN ( 7579 lb )

Dimensions - Standard Stick - Cab Height

2534 mm ( 100 in )

Engine - Stroke

102 mm ( 4 in )

Service Refill Capacities - Hydraulic System

104 l ( 27 gal (US) )

Dimensions - Standard Stick - Tail Swing without Counterweight

1800 mm ( 71 in )

Dimensions - Long Stick - Dig Depth

4649 mm ( 183 in )

Dimensions - Long Stick - Maximum Reach - Ground Level

6671 mm ( 263 in )

Dimensions - Long Stick - O/A Track Width

2200 mm ( 87 in )

Hydraulic System - Pump Flow at 2,400 rpm

167 l/min ( 44 gal/min )

Dimensions - Standard Stick - Maximum Blade Depth

414 mm ( 16 in )

Dimensions - Standard Stick - Width over Upper House

2250 mm ( 89 in )

Dimensions - Standard Stick - Track Belt/Shoe Width

450 mm ( 18 in )

Dimensions - Long Stick - Stick Length

2208 mm ( 87 in )

Travel System - Ground Pressure - Minimum Weight

32.7 kPa ( 5 psi )

Engine - Gross Power - SAE J1995

36.5 kW ( 48.9 HP )

Dimensions - Long Stick - Maximum Dig Height

7758 mm ( 305 in )

Dimensions - Standard Stick - Maximum Dig Height

7341 mm ( 289 in )

Dimensions - Standard Stick - Tail Swing with Counterweight

1995 mm ( 79 in )

Hydraulic System - Auxiliary Circuit - Primary - Flow

131 l/min ( 35 gal/min )

Certification - Cab - Top Guard

ISO 10262:1998 (Level II)

Dimensions - Long Stick - Maximum Blade Depth

414 mm ( 16 in )

Dimensions - Long Stick - Ground Clearance

370 mm ( 15 in )

Dimensions - Standard Stick - Swing Bearing - Height

756 mm ( 30 in )

Dimensions - Standard Stick - Maximum Reach

6297 mm ( 248 in )

Dimensions - Standard Stick - Maximum Reach - Ground Level

6152 mm ( 242 in )

Hydraulic System - Operating Pressure - Travel

285 bar ( 4134 psi )

Blade - Width

2280 mm ( 90 in )

Service Refill Capacities - Fuel Tank

145 l ( 38 gal (US) )

Dimensions - Standard Stick - Maximum Dump Clearance

5293 mm ( 208 in )

Dimensions - Standard Stick - Maximum Blade Height

363 mm ( 14 in )

Dimensions - Standard Stick - O/A Undercarriage Length

2760 mm ( 109 in )

Dimensions - Long Stick - Vertical Wall

4120 mm ( 162 in )

Dimensions - Long Stick - Maximum Blade Height

363 mm ( 14 in )

Hydraulic System - Auxiliary Circuit - Secondary - Flow

33 l/min ( 9 gal/min )

Engine - Bore

87 mm ( 3.4 in )

Dimensions - Standard Stick - O/A Shipping Length

6144 mm ( 242 in )

Travel System - Ground Pressure - Maximum Weight

35.7 kPa ( 5 psi )

Hydraulic System - Digging Force - Bucket

54.6 kN ( 12272 lb )

Certification - Cab - Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Weights - Minimum Operating Weight with Cab*

7532 kg ( 16605 lb )

Service Refill Capacities - Cooling System

10 l ( 2.6 gal (US) )

Dimensions - Standard Stick - Stick Length

1665 mm ( 66 in )

Dimensions - Standard Stick - Transport Height

2558 mm ( 101 in )

Certification - Cab - Tip Over Protective Structure (TOPS)

ISO 12117:1997

Weight Increase from Minimum Configuration - Steel Tracks with Pads

285 kg ( 628 lb )

Dimensions - Long Stick - Tail Swing without Counterweight

1800 mm ( 71 in )

Hydraulic System - Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Dimensions - Standard Stick - Vertical Wall

3604 mm ( 142 in )

Hydraulic System - Auxiliary Circuit - Secondary - Pressure

285 bar ( 4134 psi )

Travel System - Maximum Traction Force - Low Speed

62.4 kN ( 14035 lb )

Travel System - Travel Speed - Low

3.1 km/h ( 1.9 mile/h )

Travel System - Travel Speed - High

5 km/h ( 3.1 mile/h )

Weights - Note (1)

*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Weights - Note (2)

**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

Dimensions - Long Stick - O/A Shipping Length

6257 mm ( 246 in )

Engine - Rated Net Power - 2,400 rpm - China Nonroad Stage III, Brazil MAR-1, Equivalent to EU Stage IIIA - ISO 9249/EEC 80/1269

34.9 kW ( 46.8 HP )

Dimensions - Long Stick - Transport Height

2656 mm ( 105 in )

Dimensions - Long Stick - Width over Upper House

2250 mm ( 89 in )

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