US
Metric

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.

Engine

Engine Model
Cat C2.4 Turbo
Net Power
55.90 HP
41.70 kW

Weights

Operating Weight
18152.00 lb
8233.00 kg

Blade

Height
17.00 in
431.00 mm
Width
90.00 in
2280.00 mm

Certification - Cab

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

Dimensions - Long Stick

Boom In Reach
89.00 in
2250.00 mm
Boom Swing - Left
0.00 °
0.00 °
Boom Swing - Right
0.00 °
0.00 °
Cab Height
100.00 in
2534.00 mm
Dig Depth
183.00 in
4649.00 mm
Ground Clearance
15.00 in
370.00 mm
Maximum Blade Depth
16.00 in
414.00 mm
Maximum Blade Height
14.00 in
363.00 mm
Maximum Dig Height
305.00 in
7758.00 mm
Maximum Dump Clearance
225.00 in
5710.00 mm
Maximum Reach
268.00 in
6805.00 mm
Maximum Reach - Ground Level
263.00 in
6671.00 mm
O/A Shipping Length
246.00 in
6257.00 mm
O/A Track Width
87.00 in
2200.00 mm
O/A Undercarriage Length
109.00 in
2760.00 mm
Stick Length
87.00 in
2208.00 mm
Swing Bearing - Height
30.00 in
756.00 mm
Tail Swing with Counterweight
79.00 in
1995.00 mm
Tail Swing without Counterweight
71.00 in
1800.00 mm
Track Belt/Shoe Width
18.00 in
450.00 mm
Transport Height
105.00 in
2656.00 mm
Vertical Wall
162.00 in
4120.00 mm
Width over Upper House
89.00 in
2250.00 mm

Dimensions - Standard Stick

Boom In Reach
66.00 in
1681.00 mm
Boom Swing - Left
0.00 °
0.00 °
Boom Swing - Right
0.00 °
0.00 °
Cab Height
100.00 in
2534.00 mm
Dig Depth
162.00 in
4107.00 mm
Ground Clearance
15.00 in
370.00 mm
Maximum Blade Depth
16.00 in
414.00 mm
Maximum Blade Height
14.00 in
363.00 mm
Maximum Dig Height
289.00 in
7341.00 mm
Maximum Dump Clearance
208.00 in
5293.00 mm
Maximum Reach
248.00 in
6297.00 mm
Maximum Reach - Ground Level
242.00 in
6152.00 mm
O/A Shipping Length
242.00 in
6144.00 mm
O/A Track Width
87.00 in
2200.00 mm
O/A Undercarriage Length
109.00 in
2760.00 mm
Stick Length
66.00 in
1665.00 mm
Swing Bearing - Height
30.00 in
756.00 mm
Tail Swing with Counterweight
79.00 in
1995.00 mm
Tail Swing without Counterweight
71.00 in
1800.00 mm
Track Belt/Shoe Width
18.00 in
450.00 mm
Transport Height
101.00 in
2558.00 mm
Vertical Wall
142.00 in
3604.00 mm
Width over Upper House
89.00 in
2250.00 mm

Engine

Bore
3.40 in
87.00 mm
Displacement
148.00 in³
2.43 l
Gross Power - ISO 14396
57.90 HP
43.20 kW
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
55.90 HP
41.70 kW
Stroke
4.00 in
102.00 mm

Hydraulic System

Auxiliary Circuit - Primary - Flow
35.00 gal/min
131.00 l/min
Auxiliary Circuit - Primary - Pressure
4134.00 psi
285.00 bar
Auxiliary Circuit - Secondary - Flow
9.00 gal/min
33.00 l/min
Auxiliary Circuit - Secondary - Pressure
4134.00 psi
285.00 bar
Digging Force - Bucket
12272.00 lb
54.60 kN
Digging Force - Stick - Long
7579.00 lb
33.70 kN
Digging Force - Stick - Standard
8504.00 lb
37.80 kN
Operating Pressure - Equipment
4134.00 psi
285.00 bar
Operating Pressure - Swing
3626.00 psi
250.00 bar
Operating Pressure - Travel
4134.00 psi
285.00 bar
Pump Flow at 2,400 rpm
44.00 gal/min
167.00 l/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

Cooling System
2.60 gal (US)
10.00 l
Engine Oil
2.50 gal (US)
9.50 l
Fuel Tank
38.00 gal (US)
145.00 l
Hydraulic System
27.00 gal (US)
104.00 l
Hydraulic Tank
14.00 gal (US)
53.00 l

Sound

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

Swing System

Machine Swing Speed
10.00 r/min
10.00 r/min

Travel System

Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
5.00 psi
35.70 kPa
Ground Pressure - Minimum Weight
5.00 psi
32.70 kPa
Maximum Traction Force - High Speed
5856.00 lb
26.10 kN
Maximum Traction Force - Low Speed
14035.00 lb
62.40 kN
Travel Speed - High
3.10 mile/h
5.00 km/h
Travel Speed - Low
1.90 mile/h
3.10 km/h

Weight Increase from Minimum Configuration

Counterweight
552.00 lb
250.00 kg
Long Stick
181.00 lb
82.00 kg
Steel Tracks with Pads
628.00 lb
285.00 kg

Weights

Maximum Operating Weight with Cab**
18152.00 lb
8233.00 kg
Minimum Operating Weight with Cab*
16605.00 lb
7532.00 kg
Note (1)
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2)
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Features

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.

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.
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