307.5 Mini Excavator

307.5 Mini Hydraulic Excavator

Excavators
Mini Excavators (20)
Small Excavators (10)
Medium Excavators (12)
Large Excavators (8)
Wheel Excavators (11)

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 Cat Stick Steer. 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 blade float allows for easy grading.
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.
UNMATCHED DEALER SUPPORT
  • 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.
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 Cat Stick Steer. 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 blade float allows for easy grading.
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.
UNMATCHED DEALER SUPPORT
  • 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.

Engine

Net Power
54.8HP
Engine Model
Cat C2.4 Turbo
Displacement
148in³
Gross Power - ISO 14396
57.9HP
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
55.9HP
Bore
3.4in
Stroke
4in
Gross Power - SAE J1995
57.9HP
Rated Net Power - 2,400 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
54.8HP

Weights

Operating Weight
17905lb
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**
17905lb
Minimum Operating Weight with Cab*
16549lb
Note (1)
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Dimensions - Long Stick

Dig Depth
182.8in
Cab Height
100in
Maximum Blade Height
14.6in
Track Belt/Shoe Width
17.7in
Maximum Dump Clearance
225.1in
O/A Undercarriage Length
108.7in
O/A Track Width
86.6in
Transport Height
105in
Vertical Wall
161.9in
Width over Upper House
88.6in
Boom In Reach
88.6in
Stick Length
86.9in
Tail Swing with Counterweight
76in
Maximum Reach
267.9in
Ground Clearance
14.6in
Swing Bearing - Height
29.7in
O/A Shipping Length
246in
Tail Swing without Counterweight
70.9in
Maximum Dig Height
305.7in
Maximum Blade Depth
16in
Maximum Reach - Ground Level
262.6in
Height - Boom Transport - No Tools
100.4in
Overall Shipping Length - without Counterweight
240.9in
Overall Shipping Length - with Counterweight
246.1in
Note (1)
Boom Height when stick is pinned in transport position with no attachments.
Height - Boom Working - With Tools
124in
Note (2)
Boom Height when stick is pinned in working position with attachments.

Blade

Height
17in
Width
90in

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing
3626psi
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 - Travel
4134psi
Operating Pressure - Equipment
4134psi
Auxiliary Circuit - Primary - Flow
35gal/min
Auxiliary Circuit - Secondary - Flow
9gal/min
Digging Force - Stick - Long
7579lb
Digging Force - Bucket
12272lb
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134psi
Maximum Auxiliary Circuit - Primary - Flow at Pump
35gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134psi

Travel System

Maximum Traction Force - Low Speed
14035lb
Maximum Traction Force - High Speed
5856lb
Travel Speed - High
3.1mile/h
Ground Pressure - Maximum Weight
5.5psi
Travel Speed - Low
1.9mile/h
Gradeability - Maximum
30 degrees
Ground Pressure - Minimum Weight
5.1psi

Dimensions - Standard Stick

Tail Swing with Counterweight
76in
Vertical Wall
141.6in
Transport Height
101in
Tail Swing without Counterweight
70.9in
Stick Length
65.6in
Boom In Reach
66.2in
Track Belt/Shoe Width
17.7in
Ground Clearance
14.6in
O/A Track Width
86.6in
Maximum Reach - Ground Level
242.1in
O/A Undercarriage Length
108.7in
Width over Upper House
88.6in
Maximum Reach
247.9in
Swing Bearing - Height
29.7in
Maximum Blade Height
14.6in
Maximum Blade Depth
16in
Dig Depth
161.4in
O/A Shipping Length
242in
Maximum Dump Clearance
208.6in
Cab Height
100in
Maximum Dig Height
289.3in
Height - Boom Working - With Tools
107.5in
Overall Shipping Length - with Counterweight
245.3in
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
240.2in
Height - Boom Transport - No Tools
101.2in
Note (1)
Boom Height when stick is pinned in transport position with no attachments.

Weight Increase from Minimum Configuration

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

Service Refill Capacities

Cooling System
2.6gal (US)
Hydraulic System
29gal (US)
Hydraulic Tank
14gal (US)
Fuel Tank
38gal (US)
Engine Oil
2.5gal (US)

Sound

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

Swing System

Machine Swing Speed
10r/min

Certification - Cab

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

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 .90 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.

Standard/Optional Features

Standard Equipment:

  • 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

Optional Equipment:

  • 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

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