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307.5 Mini Hydraulic Excavator

307.5 Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

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More Comfort – More Performance – More Versatility

  • 4 Industry First Features

    Cat Exclusives in a Mini Excavator

  • Up to 10% Lower Total Ownership Costs

    with improved fuel efficiency and longer service intervals

  • Up to 20% More Performance

    with customizable operator settings and improvements in lift, swing, travel and multifunction

Engine

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

Weights

Maximum Operating Weight with Cab** 17905 lb
Minimum Operating Weight with Cab* 16549 lb
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.
Operating Weight 17905 lb

Dimensions - Long Stick

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

Weight Increase from Minimum Configuration

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

Travel System

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

Service Refill Capacities

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

Hydraulic System

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

Swing System

Machine Swing Speed 10 r/min

Blade

Height 17 in
Width 90 in

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 I)

Sound

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

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

Boom In Reach 66.2 in
Cab Height 100 in
Dig Depth 161.4 in
Ground Clearance 14.6 in
Height - Boom Transport - No Tools 101.2 in
Height - Boom Working - With Tools 107.5 in
Maximum Blade Depth 16 in
Maximum Blade Height 14.6 in
Maximum Dig Height 289.3 in
Maximum Dump Clearance 208.6 in
Maximum Reach 247.9 in
Maximum Reach - Ground Level 242.1 in
Note (1) Boom Height when stick is pinned in transport position with no attachments.
Note (2) Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
O/A Track Width 86.6 in
O/A Undercarriage Length 108.7 in
Overall Shipping Length - with Counterweight 245.3 in
Overall Shipping Length - without Counterweight 240.2 in
Stick Length 65.6 in
Swing Bearing - Height 29.7 in
Tail Swing with Counterweight 76 in
Tail Swing without Counterweight 70.9 in
Track Belt/Shoe Width 17.7 in
Vertical Wall 141.6 in
Width over Upper House 88.6 in

Sustainability

Recyclability 96%

Download resources

307.5 Product Brochure
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Cat Mini Hydraulic Excavators Product Line Brochure (North America)
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Cat Mini Hydraulic Excavators Product Line Brochure (Europe)
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Options And Accessories Kit Guide for Mini Hydraulic Excavators
Download
Cat Attachments for Mini Excavators Brochure
Download
Attachment Compatibility Guide for Mini Excavators
Download

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Engine

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

Weights

Maximum Operating Weight with Cab** 17905 lb
Minimum Operating Weight with Cab* 16549 lb
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.
Operating Weight 17905 lb

Dimensions - Long Stick

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

Weight Increase from Minimum Configuration

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

Travel System

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

Service Refill Capacities

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

Hydraulic System

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

Swing System

Machine Swing Speed 10 r/min

Blade

Height 17 in
Width 90 in

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 I)

Sound

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

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

Boom In Reach 66.2 in
Cab Height 100 in
Dig Depth 161.4 in
Ground Clearance 14.6 in
Height - Boom Transport - No Tools 101.2 in
Height - Boom Working - With Tools 107.5 in
Maximum Blade Depth 16 in
Maximum Blade Height 14.6 in
Maximum Dig Height 289.3 in
Maximum Dump Clearance 208.6 in
Maximum Reach 247.9 in
Maximum Reach - Ground Level 242.1 in
Note (1) Boom Height when stick is pinned in transport position with no attachments.
Note (2) Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
O/A Track Width 86.6 in
O/A Undercarriage Length 108.7 in
Overall Shipping Length - with Counterweight 245.3 in
Overall Shipping Length - without Counterweight 240.2 in
Stick Length 65.6 in
Swing Bearing - Height 29.7 in
Tail Swing with Counterweight 76 in
Tail Swing without Counterweight 70.9 in
Track Belt/Shoe Width 17.7 in
Vertical Wall 141.6 in
Width over Upper House 88.6 in

Sustainability

Recyclability 96%

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