New | 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.

Engine ModelCat C2.4 Turbo
Net Power55.9 HP
Displacement148 in³
Gross Power - ISO 1439657.9 HP
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/126955.9 HP
Bore3.4 in
Stroke4 in
Operating Weight18152 lb
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**18152 lb
Minimum Operating Weight with Cab*16605 lb
Note (1)*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Height17 in
Width90 in
Hydraulic System
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing3626 psi
Auxiliary Circuit - Secondary - Pressure4134 psi
Pump Flow at 2,400 rpm44 gal/min
Digging Force - Stick - Standard8504 lb
Auxiliary Circuit - Primary - Pressure4134 psi
Operating Pressure - Travel4134 psi
Operating Pressure - Equipment4134 psi
Auxiliary Circuit - Primary - Flow35 gal/min
Auxiliary Circuit - Secondary - Flow9 gal/min
Digging Force - Stick - Long7579 lb
Digging Force - Bucket12272 lb
Dimensions - Long Stick
Cab Height100 in
Maximum Blade Height14 in
Track Belt/Shoe Width18 in
Maximum Dump Clearance225 in
O/A Undercarriage Length109 in
O/A Track Width87 in
Dig Depth183 in
Transport Height105 in
Vertical Wall162 in
Width over Upper House89 in
Boom In Reach89 in
Stick Length87 in
Tail Swing with Counterweight79 in
Maximum Reach268 in
Ground Clearance15 in
Swing Bearing - Height30 in
O/A Shipping Length246 in
Tail Swing without Counterweight71 in
Maximum Dig Height305 in
Maximum Blade Depth16 in
Maximum Reach - Ground Level263 in
Travel System
Maximum Traction Force - Low Speed14035 lb
Maximum Traction Force - High Speed5856 lb
Travel Speed - High3.1 mile/h
Ground Pressure - Maximum Weight5 psi
Travel Speed - Low1.9 mile/h
Gradeability - Maximum30 degrees
Ground Pressure - Minimum Weight5 psi
Dimensions - Standard Stick
Tail Swing with Counterweight79 in
Vertical Wall142 in
Transport Height101 in
Tail Swing without Counterweight71 in
Stick Length66 in
Boom In Reach66 in
Track Belt/Shoe Width18 in
Ground Clearance15 in
O/A Track Width87 in
Maximum Reach - Ground Level242 in
O/A Undercarriage Length109 in
Width over Upper House89 in
Maximum Reach248 in
Swing Bearing - Height30 in
Maximum Blade Height14 in
Maximum Blade Depth16 in
Dig Depth162 in
O/A Shipping Length242 in
Maximum Dump Clearance208 in
Cab Height100 in
Maximum Dig Height289 in
Weight Increase from Minimum Configuration
Long Stick181 lb
Counterweight552 lb
Steel Tracks with Pads628 lb
Service Refill Capacities
Cooling System2.6 gal (US)
Hydraulic System27 gal (US)
Hydraulic Tank14 gal (US)
Fuel Tank38 gal (US)
Engine Oil2.5 gal (US)
Operator Sound Pressure (ISO 6396:2008)72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)98 dB(A)
NoteEuropean Union Directive “2000/14/EC”
Swing System
Machine Swing Speed10 r/min
Certification - Cab
Roll Over Protective Structure (ROPS)ISO 12117-2:2008
Top GuardISO 10262:1998 (Level II)
Tip Over Protective Structure (TOPS)ISO 12117:1997

  • 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.

  • controls Are Easy To Use And The Intuitive Next Generation Monitor Provides Customizable Machine Operator Preferences And Easy To Read Machine Information.

  • 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!

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

Standard Equipment

  • Automatic Swing Brake
  • Cat C2.4 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
  • Automatic Engine Shutdown
  • Fuel Water Separator with Indicator
  • Radial Seal – Double Element Air Filter
  • Automatic Engine Idle
  • Automatic Two Speed Travel
  • Extended Life Coolant, –37° C (–35° F)
  • Power On Demand
  • Smart Tech Electronic Pump
  • HYDO Advanced Hydraulic Oil
  • Load Sensing/Flow Sharing Hydraulics
  • Hydraulic Temperature Monitoring
  • Certified Accumulator
  • Variable Displacement Piston Pump
  • LED Interior Light
  • TOPS – ISO 12117:1997
  • Sealed and Pressurized Cab
  • Molded Footrests
  • Cat Key with Passcode Option
  • 12V Power Socket
  • Control Pattern Changer
  • 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
  • Stick Steer Mode
  • Adjustable Wrist Rests
  • Travel Pedals and Hand Levers
  • Top Guard – ISO 10262:1998 (Level II)
  • ROPS – ISO 12117-2:2008
  • Literature Holder
  • Radio – Bluetooth®, USB, Auxiliary, Microphone
  • Skylight
  • Assisted Front Window Overhead Storage
  • Travel Cruise Control
  • Fabric, High Back, Suspension Seat
  • Operator Sound Pressure 72 dB(A) ISO 6396
  • Retractable Seat Belt (75 mm/3 in)
  • Removable, Washable Floor Mat
  • Integrated Lower Front Window
  • Coat Hook
  • HVAC with Automatic Temperature Control
  • Mounting Bosses for Top and Front Guards
  • Cup Holder
  • Rear Window Emergency Exit
  • Hydraulic Lockout Controls
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
  • Hydraulic Track Adjusters
  • Tie Down Eyes on Track Frame
  • Greased and Lubricated Track
  • Steel Tracks (450 mm/17.7 in wide)
  • 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)
  • 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

Optional Equipment

  • Air Suspension Heated Seat
  • Rain Visor
  • Rotating Beacon
  • Rearview Camera
  • Bucket Linkage with Lift Eye
  • Track Guides
  • Wide Steel Tracks (600 mm/23.6 in)
  • Attachments including Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines with Case Drain
  • Steel Track with Rubber Pads
  • Boom and Stick Hose Burst Check Valves
  • Water Jacket Heater
  • Refueling Pump
  • Cab Guarding









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