307.5 Mini Excavator

307.5 Mini Hydraulic Excavator

Excavators

Overview

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.
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.

Dimensions - Standard Stick

Maximum Dig Height
289in
Cab Height
100in
Maximum Dump Clearance
208in
O/A Shipping Length
242in
Dig Depth
162in
Maximum Blade Depth
16in
Maximum Blade Height
14in
Width over Upper House
89in
Maximum Reach
248in
Swing Bearing - Height
30in
O/A Undercarriage Length
109in
Maximum Reach - Ground Level
242in
O/A Track Width
87in
Ground Clearance
15in
Track Belt/Shoe Width
18in
Boom In Reach
66in
Stick Length
66in
Tail Swing without Counterweight
71in
Transport Height
101in
Vertical Wall
142in
Tail Swing with Counterweight
79in

Certification - Cab

Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008

Dimensions - Long Stick

Maximum Reach - Ground Level
263in
Maximum Blade Depth
16in
Maximum Dig Height
305in
Tail Swing without Counterweight
71in
O/A Shipping Length
246in
Swing Bearing - Height
30in
Ground Clearance
15in
Maximum Reach
268in
Tail Swing with Counterweight
79in
Stick Length
87in
Transport Height
105in
Vertical Wall
162in
Width over Upper House
89in
Boom In Reach
89in
O/A Track Width
87in
O/A Undercarriage Length
109in
Maximum Dump Clearance
225in
Track Belt/Shoe Width
18in
Maximum Blade Height
14in
Cab Height
100in
Dig Depth
183in

Travel System

Ground Pressure - Minimum Weight
5psi
Gradeability - Maximum
30 degrees
Travel Speed - Low
1.9mile/h
Travel Speed - High
3.1mile/h
Ground Pressure - Maximum Weight
5psi
Maximum Traction Force - High Speed
5856lb
Maximum Traction Force - Low Speed
14035lb

Weights

Note (1)
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Minimum Operating Weight with Cab*
16605lb
Maximum Operating Weight with Cab**
18152lb
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
18152lb

Weight Increase from Minimum Configuration

Steel Tracks with Pads
628lb
Counterweight
552lb
Long Stick
181lb

Hydraulic System

Digging Force - Bucket
12272lb
Digging Force - Stick - Long
7579lb
Auxiliary Circuit - Secondary - Flow
9gal/min
Auxiliary Circuit - Primary - Flow
35gal/min
Operating Pressure - Equipment
4134psi
Operating Pressure - Travel
4134psi
Auxiliary Circuit - Secondary - Pressure
4134psi
Pump Flow at 2,400 rpm
44gal/min
Digging Force - Stick - Standard
8504lb
Auxiliary Circuit - Primary - Pressure
4134psi
Operating Pressure - Swing
3626psi
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Sound

Note
European Union Directive “2000/14/EC”
Average Exterior Sound Pressure (ISO 6395:2008)
98dB(A)
Operator Sound Pressure (ISO 6396:2008)
72dB(A)

Engine

Stroke
4in
Bore
3.4in
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
55.9HP
Gross Power - ISO 14396
57.9HP
Displacement
148in³
Engine Model
Cat C2.4 Turbo
Net Power
55.9HP

Blade

Width
90in
Height
17in

Service Refill Capacities

Fuel Tank
38gal (US)
Engine Oil
2.5gal (US)
Hydraulic System
27gal (US)
Hydraulic Tank
14gal (US)
Cooling System
2.6gal (US)

Swing System

Machine Swing Speed
10r/min

Standard/Optional Features

Standard Equipment:

  • Engine
    • 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)
  • Hydraulics
    • 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
  • Operator Environment
    • 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
  • Undercarriage
    • 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)
  • 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

Optional Equipment:

  • Operator Environment
    • Air Suspension Heated Seat
    • Rain Visor
  • Electrical
    • Rotating Beacon
    • Rearview Camera
  • Other
    • 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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