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.

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Engine Model Cat C2.4 Turbo
Net Power 54.8 HP
Displacement 148 in³
Gross Power - SAE J1995 57.9 HP
Bore 3.4 in
Stroke 4 in
Rated Net Power - 2,400 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 54.8 HP
Operating Weight 17905 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** 17905 lb
Minimum Operating Weight with Cab* 16549 lb
Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Long Stick 181 lb
Counterweight 552 lb
Steel Tracks with Pads 628 lb
Maximum Traction Force - Low Speed 14035 lb
Maximum Traction Force - High Speed 5856 lb
Travel Speed - High 3.1 mile/h
Ground Pressure - Maximum Weight 5.5 psi
Travel Speed - Low 1.9 mile/h
Gradeability - Maximum 30 degrees
Ground Pressure - Minimum Weight 5.1 psi
Cooling System 2.6 gal (US)
Hydraulic System 29 gal (US)
Hydraulic Tank 14 gal (US)
Fuel Tank 38 gal (US)
Engine Oil 2.5 gal (US)
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing 3626 psi
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm 44 gal/min
Digging Force - Stick - Standard 8504 lb
Operating Pressure - Travel 4134 psi
Operating Pressure - Equipment 4134 psi
Digging Force - Stick - Long 7579 lb
Digging Force - Bucket 12272 lb
Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi
Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi
Machine Swing Speed 10 r/min
Height 17 in
Width 90 in
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS) ISO 12117:1997
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 98 dB(A)
Note European Union Directive “2000/14/EC”
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains .90 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
Tail Swing with Counterweight 76 in
Vertical Wall 141.6 in
Tail Swing without Counterweight 70.9 in
Stick Length 65.6 in
Boom In Reach 66.2 in
Track Belt/Shoe Width 17.7 in
Ground Clearance 14.6 in
O/A Track Width 86.6 in
Maximum Reach - Ground Level 242.1 in
O/A Undercarriage Length 108.7 in
Width over Upper House 88.6 in
Maximum Reach 247.9 in
Swing Bearing - Height 29.7 in
Maximum Blade Height 14.6 in
Maximum Blade Depth 16 in
Dig Depth 161.4 in
Maximum Dump Clearance 208.6 in
Cab Height 100 in
Maximum Dig Height 289.3 in
Height - Boom Working - With Tools 107.5 in
Overall Shipping Length - with Counterweight 245.3 in
Note (2) Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Overall Shipping Length - without Counterweight 240.2 in
Height - Boom Transport - No Tools 101.2 in
Note (1) Boom Height when stick is pinned in transport position with no attachments.
Cab Height 100 in
Maximum Blade Height 14.6 in
Track Belt/Shoe Width 17.7 in
Maximum Dump Clearance 225.1 in
O/A Undercarriage Length 108.7 in
O/A Track Width 86.6 in
Dig Depth 182.8 in
Vertical Wall 161.9 in
Width over Upper House 88.6 in
Boom In Reach 88.6 in
Stick Length 86.9 in
Tail Swing with Counterweight 76 in
Maximum Reach 267.9 in
Ground Clearance 14.6 in
Swing Bearing - Height 29.7 in
Tail Swing without Counterweight 70.9 in
Maximum Dig Height 305.7 in
Maximum Blade Depth 16 in
Maximum Reach - Ground Level 262.6 in
Height - Boom Transport - No Tools 100.4 in
Overall Shipping Length - without Counterweight 240.9 in
Overall Shipping Length - with Counterweight 246.1 in
Note (1) Boom Height when stick is pinned in transport position with no attachments.
Height - Boom Working - With Tools 124 in
Note (2) Boom Height when stick is pinned in working position with attachments.
ENGINE
  • Cat C2.4 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
  • Automatic Engine Idle
  • Automatic Engine Shutdown
  • Automatic Swing Brake
  • Automatic Two Speed Travel
  • Fuel Water Separator with Indicator
  • Radial Seal – Double Element Air Filter
  • Extended Life Coolant, –37° C ( –37° F)
HYDRAULICS
  • Smart Tech Electronic Pump
  • Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
  • Power On Demand
  • Hydraulic Temperature Monitoring
  • Certified Accumulator
  • HYDO Advanced Hydraulic Oil
OPERATOR ENVIRONMENT
  • Top Guard ISO 10262 1998 Level I
  • ROPS ISO 12117-2:2008
  • Stick Steer Mode
  • Travel Cruise Control
  • Control Pattern Changer
  • Adjustable Wrist Rests
  • Molded Footrests
  • Removable, Washable Floor Mat
  • Travel Pedals and Hand Levers
  • Cat Key with Passcode Option
  • HVAC with Automatic Temperature Control
  • Hydraulic Lockout Controls
  • Integrated Lower Front Window
  • Assisted Front Window Overhead Storage
  • Rear Window Emergency Exit
  • Fabric, High Back, Suspension Seat
  • Retractable Seat Belt (75 mm/3 in)
  • Coat Hook
  • Cup Holder
  • LED Interior Light
  • Literature Holder
  • Mounting Bosses for Top and Front Guards
  • 12V Power Socket
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only)
  • Skylight
  • Signaling/Warning Horn
  • Cab and (left side) Boom Work Lights
  • Utility Space for Mobile Phone
  • Next Generation Color LCD Monitor (IP66)
    – Jog Dial Interface (cab machines only)
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Camera Ready (IP68 & IP69K)
    – Hour Meter with Wake Up Switch
UNDERCARRIAGE
  • Greased and Lubricated Track
  • Tie Down Eyes on Track Frame
  • Dozer Straight Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
BOOM, STICK AND LINKAGES
  • One Piece Boom (3700 mm/145.7 in)
  • Standard Stick (1665 mm/65.6 in)
  • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler for Cat Tools
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (optional in some regions)
ELECTRICAL
  • 12 Volt Electrical System
  • 90 Ampere Alternator
  • 900 CCA Maintenance Free Battery
  • Battery Disconnect
  • Ignition Key Stop Switch
  • Product Link™ Basic (regulations apply)
  • Travel Alarm
OTHER
  • Locks on External Enclosure Doors
  • Lockable Fuel Cap
  • Beacon Socket
  • Rear Reflectors
OPERATOR ENVIRONMENT
  • Air Suspension Heated Seat
  • Rain Visor
  • Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
    – Jog Dial Control Interface
    – Touch Screen
    – Site Reference System
    – High Definition Camera Capable (IP68 & IP69K)
    – Numeric Security Code
UNDERCARRIAGE
  • Steel Tracks (450 mm/17.7 in wide)
  • Wide Steel Tracks (600 mm/23.6 in)
  • Steel Track with Rubber Pads
  • Track Guides
BOOM, STICK AND LINKAGES
  • Long Stick (2200 mm/86.6 in)
  • Attachments including Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Bucket Linkage with Lift Eye
ELECTRICAL
  • Product Link Elite (regulations apply)
  • Rearview Camera
  • Rotating Beacon
GUARDING
  • Heavy Duty Front Guard ISO 10262 1998 Level II
  • Mesh Front Guard ISO 10262 1998 Level I
  • Overhead Cab Guard ISO 10262 1998 Level II
  • Polycarbonate Front Window EN356 P5A (Cab Only)
  • Track Guards
OTHER
  • Water Jacket Heater
  • Refueling Pump