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.

Features

  • ALL DAY COMFORT

    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

    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

    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

    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

    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

    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.
  • SUSTAINABILITY

    SUSTAINABILITY

    • The Cat® C2.4 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
    • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
    • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
    • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
    • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
    • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
    • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
    • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
    • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
    • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).

    *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

Specifications

Units for specifications

Engine

Net Power 54.8 hp 40.9 kW
Displacement 148 in³ 2.43 l
Gross Power - SAE J1995:2014 57.9 hp 43.2 kW
Bore 3.4 in 87 mm
Stroke 4 in 102.4 mm
Rated Net Power - 2,400 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 54.8 hp 40.9 kW
Engine Model Cat C2.4 Turbo

Weights

Operating Weight 17905 lb 8120 kg
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 8120 kg
Minimum Operating Weight with Cab* 16549 lb 7505 kg
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 182.8 in 4642 mm
Cab Height 100 in 2541 mm
Maximum Blade Height 14.6 in 370 mm
Track Belt/Shoe Width 17.7 in 450 mm
Maximum Dump Clearance 225.1 in 5717 mm
O/A Undercarriage Length 108.7 in 2760 mm
O/A Track Width 86.6 in 2200 mm
Vertical Wall 161.9 in 4113 mm
Width over Upper House 88.6 in 2250 mm
Boom In Reach 88.6 in 2250 mm
Stick Length 86.9 in 2208 mm
Tail Swing with Counterweight 76 in 1930 mm
Maximum Reach 267.9 in 6805 mm
Ground Clearance 14.6 in 370 mm
Swing Bearing - Height 29.7 in 756 mm
Tail Swing without Counterweight 70.9 in 1800 mm
Maximum Dig Height 305.7 in 7765 mm
Maximum Blade Depth 16 in 407 mm
Maximum Reach - Ground Level 262.6 in 6670 mm
Height - Boom Transport - No Tools 100.4 in 2550 mm
Overall Shipping Length - without Counterweight 240.9 in 6120 mm
Overall Shipping Length - with Counterweight 246.1 in 6250 mm
Note (1) Boom Height when stick is pinned in transport position with no attachments.
Height - Boom Working - With Tools 124 in 3150 mm
Note (2) Boom Height when stick is pinned in working position with attachments.

Weight Increase from Minimum Configuration

Long Stick 181 lb 82 kg
Counterweight 552 lb 250 kg
Steel Tracks with Pads 628 lb 285 kg

Travel System

Maximum Traction Force - Low Speed 14035 lb 62.4 kN
Maximum Traction Force - High Speed 5856 lb 26.1 kN
Travel Speed - High 3.1 mile/h 5 km/h
Ground Pressure - Maximum Weight 5.5 psi 37.7 kPa
Travel Speed - Low 1.9 mile/h 3.1 km/h
Gradeability - Maximum 30 degrees
Ground Pressure - Minimum Weight 5.1 psi 34.8 kPa

Service Refill Capacities

Cooling System 2.6 gal (US) 10 l
Hydraulic System 29 gal (US) 110 l
Hydraulic Tank 14 gal (US) 53 l
Fuel Tank 38 gal (US) 145 l
Engine Oil 2.5 gal (US) 9.5 l

Hydraulic System

Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing 3626 psi 250 bar
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm 44 gal/min 167 l/min
Digging Force - Stick - Standard 8504 lb 37.8 kN
Operating Pressure - Travel 4134 psi 285 bar
Operating Pressure - Equipment 4134 psi 285 bar
Digging Force - Stick - Long 7579 lb 33.7 kN
Digging Force - Bucket 12272 lb 54.6 kN
Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min 33 l/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min 131 l/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi 285 bar

Swing System

Machine Swing Speed 10 r/min 10 r/min

Blade

Height 17 in 431 mm
Width 90 in 2280 mm

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

Sound

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

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.

Dimensions - Standard Stick

Tail Swing with Counterweight 76 in 1930 mm
Vertical Wall 141.6 in 3597 mm
Tail Swing without Counterweight 70.9 in 1800 mm
Stick Length 65.6 in 1665 mm
Boom In Reach 66.2 in 1681 mm
Track Belt/Shoe Width 17.7 in 450 mm
Ground Clearance 14.6 in 370 mm
O/A Track Width 86.6 in 2200 mm
Maximum Reach - Ground Level 242.1 in 6151 mm
O/A Undercarriage Length 108.7 in 2760 mm
Width over Upper House 88.6 in 2250 mm
Maximum Reach 247.9 in 6297 mm
Swing Bearing - Height 29.7 in 756 mm
Maximum Blade Height 14.6 in 370 mm
Maximum Blade Depth 16 in 407 mm
Dig Depth 161.4 in 4100 mm
Maximum Dump Clearance 208.6 in 5300 mm
Cab Height 100 in 2541 mm
Maximum Dig Height 289.3 in 7348 mm
Height - Boom Working - With Tools 107.5 in 2730 mm
Overall Shipping Length - with Counterweight 245.3 in 6230 mm
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 6100 mm
Height - Boom Transport - No Tools 101.2 in 2570 mm
Note (1) Boom Height when stick is pinned in transport position with no attachments.

Sustainability

Recyclability 96%

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
  • Cab Mirrors (vary by region)
  • 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 and IP69K)
    – Hour Meter with Wake Up Switch

TECHNOLOGY (availability varies by region)

  • Product Link™ Basic

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
  • Lock Out/Tag Out Battery Disconnect
  • Ignition Key Stop Switch
  • Travel Alarm
  • Rear and Side Camera

GUARDING

  • ROPS ISO 12117-2:2008
  • Top Guard ISO 10262:1998 (Level I)

OTHER

  • Locks on External Enclosure Doors
  • Lockable Fuel Cap
  • Beacon Socket
  • Rear Reflectors

Optional Equipment

OPERATOR ENVIRONMENT

  • Air Suspension Heated Seat
  • Seat Belt Reminder System
  • 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 and IP69K)
    – Numeric Security Code

TECHNOLOGY (availability varies by region)

  • Ease of Use Indicate
  • Ease of Use E-Fence
  • Cat Grade Advanced 2D
  • Cat Grade 3D
  • Product Link Elite (regulations apply)

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
  • Certified Lifting Eye (optional in some regions)

ELECTRICAL

  • Rotating Beacon

GUARDING

  • Top Guard ISO 10262:1998 (Level II)
  • Front Guard (Mesh) ISO 10262:1998 (Level I)
  • Front Guard (Heavy Duty) ISO 10262:1998 (Level II)
  • Track Guards

OTHER

  • Water Jacket Heater
  • Refueling Pump

Videos

  • Introducing the Next Generation Cat 7-10 Ton Mini Excavators
  • Overview of the Next Generation Cat 7-10 Ton Mini Excavators
  • Standard Monitor on the Next Generation Cat Mini Excavators
  • Stick Steer on the Cat Next Generation Mini Excavators
  • Daily Maintenance and Inspection on the Cat 7-10 Ton Mini Excavators
  • Safety Features on the Cat 7-10 Ton Mini Excavators
307.5 Mini Hydraulic Excavator

Documents

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