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.
Net Power
40.9 kW
Displacement
2.43 l
Gross Power – SAE J1995
43.2 kW
Product specifications for 307.5 Mini Excavators
Engine
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Net Power
40.9 kW
Displacement
2.43 l
Gross Power – SAE J1995
43.2 kW
Bore
87 mm
Stroke
102.4 mm
Rated Net Power – 2,400 rpm – U.S. EPA Tier 4 Final/EU Stage V – ISO 9249/EEC 80/1269
40.9 kW
Engine Model
Cat C2.4 Turbo
Weights
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Operating Weight
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**
8120 kg
Minimum Operating Weight with Cab*
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
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Dig Depth
4642 mm
Cab Height
2541 mm
Maximum Blade Height
370 mm
Track Belt/Shoe Width
450 mm
Maximum Dump Clearance
5717 mm
O/A Undercarriage Length
2760 mm
O/A Track Width
2200 mm
Vertical Wall
4113 mm
Width over Upper House
2250 mm
Boom In Reach
2250 mm
Stick Length
2208 mm
Tail Swing with Counterweight
1930 mm
Maximum Reach
6805 mm
Ground Clearance
370 mm
Swing Bearing – Height
756 mm
Tail Swing without Counterweight
1800 mm
Maximum Dig Height
7765 mm
Maximum Blade Depth
407 mm
Maximum Reach – Ground Level
6670 mm
Height – Boom Transport – No Tools
2550 mm
Overall Shipping Length – without Counterweight
6120 mm
Overall Shipping Length – with Counterweight
6250 mm
Note (1)
Boom Height when stick is pinned in transport position with no attachments.
Height – Boom Working – With Tools
3150 mm
Note (2)
Boom Height when stick is pinned in working position with attachments.
Weight Increase from Minimum Configuration
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Long Stick
82 kg
Counterweight
250 kg
Steel Tracks with Pads
285 kg
Travel System
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Maximum Traction Force – Low Speed
62.4 kN
Maximum Traction Force – High Speed
26.1 kN
Travel Speed – High
5 km/h
Ground Pressure – Maximum Weight
37.7 kPa
Travel Speed – Low
3.1 km/h
Gradeability – Maximum
30 degrees
Ground Pressure – Minimum Weight
34.8 kPa
Service Refill Capacities
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Cooling System
10 l
Hydraulic System
110 l
Hydraulic Tank
53 l
Fuel Tank
145 l
Engine Oil
9.5 l
Hydraulic System
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Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure – Swing
250 bar
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2,400 rpm
167 l/min
Digging Force – Stick – Standard
37.8 kN
Operating Pressure – Travel
285 bar
Operating Pressure – Equipment
285 bar
Digging Force – Stick – Long
33.7 kN
Digging Force – Bucket
54.6 kN
Maximum Auxiliary Circuit – Secondary – Flow at Pump
33 l/min
Maximum Auxiliary Circuit – Secondary – Pressure at Pump
285 bar
Maximum Auxiliary Circuit – Primary – Flow at Pump
131 l/min
Maximum Auxiliary Circuit – Primary – Pressure at Pump
285 bar
Swing System
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Machine Swing Speed
10 r/min
Blade
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Height
431 mm
Width
2280 mm
Certification – Cab
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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
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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 System
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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
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Tail Swing with Counterweight
1930 mm
Vertical Wall
3597 mm
Tail Swing without Counterweight
1800 mm
Stick Length
1665 mm
Boom In Reach
1681 mm
Track Belt/Shoe Width
450 mm
Ground Clearance
370 mm
O/A Track Width
2200 mm
Maximum Reach – Ground Level
6151 mm
O/A Undercarriage Length
2760 mm
Width over Upper House
2250 mm
Maximum Reach
6297 mm
Swing Bearing – Height
756 mm
Maximum Blade Height
370 mm
Maximum Blade Depth
407 mm
Dig Depth
4100 mm
Maximum Dump Clearance
5300 mm
Cab Height
2541 mm
Maximum Dig Height
7348 mm
Height – Boom Working – With Tools
2730 mm
Overall Shipping Length – with Counterweight
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
6100 mm
Height – Boom Transport – No Tools
2570 mm
Note (1)
Boom Height when stick is pinned in transport position with no attachments.
Sustainability
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Recyclability
96%
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.
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)
307.5 Standard Equipment
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ENGINE
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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
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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
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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
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Greased and Lubricated Track
Tie Down Eyes on Track Frame
Dozer Straight Blade
Dozer Float
Bolt-on, Reversible Wear Edge
BOOM, STICK AND LINKAGES
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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
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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
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Locks on External Enclosure Doors
Lockable Fuel Cap
Beacon Socket
Rear Reflectors
307.5 Optional Equipment
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OPERATOR ENVIRONMENT
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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
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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
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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
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Product Link Elite (regulations apply)
Rearview Camera
Rotating Beacon
GUARDING
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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
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Water Jacket Heater
Refueling Pump
