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.
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Engine
- Net Power
- 54.8 hp
- Engine Model
- Cat C2.4 Turbo
- Displacement
- 148 in³
- Gross Power - SAE J1995
- 57.9 hp
- Bore
- 3.4 in
- Stroke
- 4 in
- Rated Net Power - 2,400 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 54.8 hp
Weights
- Operating Weight
- 17,905 lb
- 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**
- 17,905 lb
- Minimum Operating Weight with Cab*
- 16,549 lb
- 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
- Cab Height
- 100 in
- Maximum Blade Height
- 14.6 in
- Track Belt/Shoe Width
- 17.7 in
- Maximum Dump Clearance
- 225.1 in
- O/A Undercarriage Length
- 108.7 in
- O/A Track Width
- 86.6 in
- Vertical Wall
- 161.9 in
- Width over Upper House
- 88.6 in
- Boom In Reach
- 88.6 in
- Stick Length
- 86.9 in
- Tail Swing with Counterweight
- 76 in
- Maximum Reach
- 267.9 in
- Ground Clearance
- 14.6 in
- Swing Bearing - Height
- 29.7 in
- Tail Swing without Counterweight
- 70.9 in
- Maximum Dig Height
- 305.7 in
- Maximum Blade Depth
- 16 in
- Maximum Reach - Ground Level
- 262.6 in
- Height - Boom Transport - No Tools
- 100.4 in
- Overall Shipping Length - without Counterweight
- 240.9 in
- Overall Shipping Length - with Counterweight
- 246.1 in
- Note (1)
- Boom Height when stick is pinned in transport position with no attachments.
- Height - Boom Working - With Tools
- 124 in
- Note (2)
- Boom Height when stick is pinned in working position with attachments.
Blade
- Height
- 17 in
- Width
- 90 in
Weight Increase from Minimum Configuration
- Long Stick
- 181 lb
- Counterweight
- 552 lb
- Steel Tracks with Pads
- 628 lb
Travel System
- Maximum Traction Force - Low Speed
- 14,035 lb
- Maximum Traction Force - High Speed
- 5,856 lb
- Travel Speed - High
- 3.1 mile/h
- Ground Pressure - Maximum Weight
- 5.5 psi
- Travel Speed - Low
- 1.9 mile/h
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Minimum Weight
- 5.1 psi
Service Refill Capacities
- Cooling System
- 2.6 gal (US)
- Hydraulic System
- 29 gal (US)
- Hydraulic Tank
- 14 gal (US)
- Fuel Tank
- 38 gal (US)
- Engine Oil
- 2.5 gal (US)
Hydraulic System
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Operating Pressure - Swing
- 3,626 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Pump Flow at 2,400 rpm
- 44 gal/min
- Digging Force - Stick - Standard
- 8,504 lb
- Operating Pressure - Travel
- 4,134 psi
- Operating Pressure - Equipment
- 4,134 psi
- Digging Force - Stick - Long
- 7,579 lb
- Digging Force - Bucket
- 12,272 lb
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 9 gal/min
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 35 gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 4,134 psi
Swing System
- Machine Swing Speed
- 10 r/min
Certification - Cab
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Sound
- Operator Sound Pressure (ISO 6396:2008)
- 72 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 98 dB(A)
- Note
- European Union Directive “2,000/14/EC”
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). 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
- Vertical Wall
- 141.6 in
- Tail Swing without Counterweight
- 70.9 in
- Stick Length
- 65.6 in
- Boom In Reach
- 66.2 in
- Track Belt/Shoe Width
- 17.7 in
- Ground Clearance
- 14.6 in
- O/A Track Width
- 86.6 in
- Maximum Reach - Ground Level
- 242.1 in
- O/A Undercarriage Length
- 108.7 in
- Width over Upper House
- 88.6 in
- Maximum Reach
- 247.9 in
- Swing Bearing - Height
- 29.7 in
- Maximum Blade Height
- 14.6 in
- Maximum Blade Depth
- 16 in
- Dig Depth
- 161.4 in
- Maximum Dump Clearance
- 208.6 in
- Cab Height
- 100 in
- Maximum Dig Height
- 289.3 in
- Height - Boom Working - With Tools
- 107.5 in
- Overall Shipping Length - with Counterweight
- 245.3 in
- 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
- Height - Boom Transport - No Tools
- 101.2 in
- 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
- 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
Specifications
Engine
- Net Power
- 54.8 hp
- Engine Model
- Cat C2.4 Turbo
- Displacement
- 148 in³
- Gross Power - SAE J1995
- 57.9 hp
- Bore
- 3.4 in
- Stroke
- 4 in
- Rated Net Power - 2,400 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 54.8 hp
Weights
- Operating Weight
- 17,905 lb
- 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**
- 17,905 lb
- Minimum Operating Weight with Cab*
- 16,549 lb
- 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
- Cab Height
- 100 in
- Maximum Blade Height
- 14.6 in
- Track Belt/Shoe Width
- 17.7 in
- Maximum Dump Clearance
- 225.1 in
- O/A Undercarriage Length
- 108.7 in
- O/A Track Width
- 86.6 in
- Vertical Wall
- 161.9 in
- Width over Upper House
- 88.6 in
- Boom In Reach
- 88.6 in
- Stick Length
- 86.9 in
- Tail Swing with Counterweight
- 76 in
- Maximum Reach
- 267.9 in
- Ground Clearance
- 14.6 in
- Swing Bearing - Height
- 29.7 in
- Tail Swing without Counterweight
- 70.9 in
- Maximum Dig Height
- 305.7 in
- Maximum Blade Depth
- 16 in
- Maximum Reach - Ground Level
- 262.6 in
- Height - Boom Transport - No Tools
- 100.4 in
- Overall Shipping Length - without Counterweight
- 240.9 in
- Overall Shipping Length - with Counterweight
- 246.1 in
- Note (1)
- Boom Height when stick is pinned in transport position with no attachments.
- Height - Boom Working - With Tools
- 124 in
- Note (2)
- Boom Height when stick is pinned in working position with attachments.
Blade
- Height
- 17 in
- Width
- 90 in
Weight Increase from Minimum Configuration
- Long Stick
- 181 lb
- Counterweight
- 552 lb
- Steel Tracks with Pads
- 628 lb
Travel System
- Maximum Traction Force - Low Speed
- 14,035 lb
- Maximum Traction Force - High Speed
- 5,856 lb
- Travel Speed - High
- 3.1 mile/h
- Ground Pressure - Maximum Weight
- 5.5 psi
- Travel Speed - Low
- 1.9 mile/h
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Minimum Weight
- 5.1 psi
Service Refill Capacities
- Cooling System
- 2.6 gal (US)
- Hydraulic System
- 29 gal (US)
- Hydraulic Tank
- 14 gal (US)
- Fuel Tank
- 38 gal (US)
- Engine Oil
- 2.5 gal (US)
Hydraulic System
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Operating Pressure - Swing
- 3,626 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Pump Flow at 2,400 rpm
- 44 gal/min
- Digging Force - Stick - Standard
- 8,504 lb
- Operating Pressure - Travel
- 4,134 psi
- Operating Pressure - Equipment
- 4,134 psi
- Digging Force - Stick - Long
- 7,579 lb
- Digging Force - Bucket
- 12,272 lb
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 9 gal/min
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 4,134 psi
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 35 gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 4,134 psi
Swing System
- Machine Swing Speed
- 10 r/min
Certification - Cab
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Sound
- Operator Sound Pressure (ISO 6396:2008)
- 72 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 98 dB(A)
- Note
- European Union Directive “2,000/14/EC”
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). 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
- Vertical Wall
- 141.6 in
- Tail Swing without Counterweight
- 70.9 in
- Stick Length
- 65.6 in
- Boom In Reach
- 66.2 in
- Track Belt/Shoe Width
- 17.7 in
- Ground Clearance
- 14.6 in
- O/A Track Width
- 86.6 in
- Maximum Reach - Ground Level
- 242.1 in
- O/A Undercarriage Length
- 108.7 in
- Width over Upper House
- 88.6 in
- Maximum Reach
- 247.9 in
- Swing Bearing - Height
- 29.7 in
- Maximum Blade Height
- 14.6 in
- Maximum Blade Depth
- 16 in
- Dig Depth
- 161.4 in
- Maximum Dump Clearance
- 208.6 in
- Cab Height
- 100 in
- Maximum Dig Height
- 289.3 in
- Height - Boom Working - With Tools
- 107.5 in
- Overall Shipping Length - with Counterweight
- 245.3 in
- 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
- Height - Boom Transport - No Tools
- 101.2 in
- Note (1)
- Boom Height when stick is pinned in transport position with no attachments.
Sustainability
- Recyclability
- 96%
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