The Caterpillar 307.5 is a compact mini excavator designed for digging, trenching, grading, and site preparation in confined work areas. As part of Caterpillar's mini excavator lineup, the 307.5 combines a small operating footprint with the reach and breakout force needed for utility, landscaping, residential construction, and light commercial applications. Typical features include a zero or reduced tail swing design, hydraulic versatility for attachments, and a comfortable operator station. The Caterpillar 307.5 is commonly selected for projects that require maneuverability, transportability, and efficient performance in tight spaces where larger excavators cannot operate effectively.
General Specifications
Caterpillar 307.5 Mini Excavator General Specifications specifications
Digging Depth
15.30 ft (4.66 m) — Starting 2025 Model Year
Digging Reach
22.30 ft (6.80 m) — Starting 2025 Model Year
Engine
55.90 hp (41.69 kw) — Starting 2025 Model Year
Max Digging Depth
182.8 in ft (55.72 m) — Starting 2023 Model Year
Net Power
54.80 hp (40.87 kw) — Starting 2023 Model Year
Operating Weight
18,152.00 lbs (8,233.62 kg) — Starting 2025 Model Year
Blades
Caterpillar 307.5 Mini Excavator Blades specifications
Blade Height
17.00 in (43.18 cm)
Blade Width
7.50 ft (2.29 m)
Dimensions - Long Stick
Caterpillar 307.5 Mini Excavator Dimensions - Long Stick specifications
Boom In Reach
88.60 in (225.04 cm)
Dig Depth
183.00 in (464.82 cm)
Maximum Blade Depth
16.30 in (41.40 cm)
Maximum Blade Height
14.30 in (36.32 cm)
Maximum Dig Height
305.40 in (775.72 cm)
Maximum Dump Clearance
224.80 in (570.99 cm)
Maximum Reach
267.90 in (680.47 cm)
Maximum Reach - Ground Level
262.70 in (667.26 cm)
O/A Shipping Length
246.30 in (625.60 cm)
O/A Track Width
86.60 in (219.96 cm)
O/A Undercarriage Length
113.40 in (288.04 cm)
Stick Length
86.90 in (220.73 cm)
Swing Bearing - Height
28.70 in (72.90 cm)
Track Belt/Shoe Width
17.70 in (44.96 cm)
Vertical Wall
162.20 in (411.99 cm)
Dimensions - Standard Stick
Caterpillar 307.5 Mini Excavator Dimensions - Standard Stick specifications
Boom In Reach
66.20 in (168.15 cm)
Dig Depth
161.70 in (410.72 cm)
Maximum Blade Depth
16.30 in (41.40 cm)
Maximum Blade Height
14.30 in (36.32 cm)
Maximum Dig Height
289.00 in (734.06 cm)
Maximum Dump Clearance
208.40 in (529.34 cm)
Maximum Reach
247.90 in (629.67 cm)
Maximum Reach - Ground Level
242.20 in (615.19 cm)
O/A Shipping Length
241.90 in (614.43 cm)
O/A Track Width
86.60 in (219.96 cm)
O/A Undercarriage Length
113.40 in (288.04 cm)
Stick Length
65.60 in (166.62 cm)
Swing Bearing - Height
28.70 in (72.90 cm)
Track Belt/Shoe Width
17.70 in (44.96 cm)
Vertical Wall
141.90 in (360.43 cm)
Engine
Caterpillar 307.5 Mini Excavator Engine specifications
Bore
3.40 in (8.64 cm)
Displacement
148.00 cu in (2,425.29 cu cm)
Engine Model
Cat C2.4 Turbo
Net Power
55.90 hp (41.69 kw)
Stroke
4.00 in (10.16 cm)
Hydraulic System
Caterpillar 307.5 Mini Excavator Hydraulic System specifications
Auxiliary Circuit - Primary - Flow
35.00 gpm (132.48 lpm)
Auxiliary Circuit - Primary - Pressure
4134 psi
Auxiliary Circuit - Secondary - Flow
9.00 gpm (34.07 lpm)
Auxiliary Circuit - Secondary - Pressure
4134 psi
Digging Force - Bucket
12,272.00 lbs (5,566.49 kg)
Digging Force - Stick - Long
7,579.00 lbs (3,437.78 kg)
Digging Force - Stick - Standard
8,504.00 lbs (3,857.35 kg)
Hydraulic System Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Equipment
4134 psi
Operating Pressure - Swing
3626 psi
Operating Pressure - Travel
4134 psi
Pump Flow at 2,400 rpm
44.00 gpm (166.54 lpm)
Service Refill Capacities
Caterpillar 307.5 Mini Excavator Service Refill Capacities specifications
Cooling System
2.60 gal (9.84 l)
Engine Oil
2.50 gal (9.46 l)
Fuel Tank
38.00 gal (143.83 l)
Hydraulic System
27.00 gal (102.20 l)
Hydraulic Tank
14.00 gal (52.99 l)
Swing System
Caterpillar 307.5 Mini Excavator Swing System specifications
Machine Swing Speed
10 rpm
Travel System
Caterpillar 307.5 Mini Excavator Travel System specifications
Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
5 psi
Ground Pressure - Minimum Weight
5 psi
Maximum Traction Force - High Speed
5,856.00 lbs (2,656.24 kg)
Maximum Traction Force - Low Speed
14,035.00 lbs (6,366.18 kg)
Travel Speed - High
3.10 mph (4.99 kph)
Travel Speed - Low
1.90 mph (3.06 kph)
Weights
Caterpillar 307.5 Mini Excavator Weights specifications
Operating Weight
18,152.00 lbs (8,233.62 kg)
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