307.5 Mini Excavator
307.5
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
54.8 HP
Displacement
148 in³
Gross Power - SAE J1995
57.9 HP
DOWNLOAD TECHNICAL SPECIFICATIONS
Specification
Value
Net Power
54.8 HP
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
Engine Model
Cat C2.4 Turbo
Specification
Value
Operating Weight
17905 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**
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.
Specification
Value
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.
Specification
Value
Long Stick
181 lb
Counterweight
552 lb
Steel Tracks with Pads
628 lb
Specification
Value
Maximum Traction Force - Low Speed
14035 lb
Maximum Traction Force - High Speed
5856 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
Specification
Value
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)
Specification
Value
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Swing
3626 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
8504 lb
Operating Pressure - Travel
4134 psi
Operating Pressure - Equipment
4134 psi
Digging Force - Stick - Long
7579 lb
Digging Force - Bucket
12272 lb
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9 gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134 psi
Maximum Auxiliary Circuit - Primary - Flow at Pump
35 gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134 psi
Specification
Value
Machine Swing Speed
10 r/min
Specification
Value
Height
17 in
Width
90 in
Specification
Value
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Specification
Value
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”
Specification
Value
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.
Specification
Value
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.
Specification
Value
Recyclability
96%
  • 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.
  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.
  • 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!
  • Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, and blade float allows for easy grading.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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)