The Caterpillar 307.5 is a compact mini excavator designed for utility work, landscaping, site preparation, and general construction in confined spaces. Built by Caterpillar, it combines a small operating footprint with digging performance suited to trenching, grading, material handling, and light demolition. The 307.5 typically features a hydraulic system optimized for smooth control, a comfortable operator station, and compatibility with a range of attachments. As a mini excavator, it is used where maneuverability, transportability, and reduced ground disturbance are important. The Caterpillar 307.5 is part of Caterpillar's compact excavator lineup for versatile jobsite applications.
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
Operating Weight
18,152.00 lbs (8,233.62 kg) — Starting 2025 Model Year
Blade
Caterpillar 307.5 Mini Excavator Blade specifications
Height
17.00 in (43.18 cm)
Width
7.50 ft (2.29 m)
Certification - Cab
Caterpillar 307.5 Mini Excavator Certification - Cab specifications
Roll Over Protective Structure (Rops)
ISO 12117-2:2008
Tip Over Protective Structure (Tops)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)
Dimensions - Long Stick
Caterpillar 307.5 Mini Excavator Dimensions - Long Stick specifications
Boom In Reach
88.60 in (225.04 cm)
Boom Swing - Left
_ -
Boom Swing - Right
_ -
Cab Height
99.00 in (251.46 cm)
Dig Depth
183.00 in (464.82 cm)
Ground Clearance
14.60 in (37.08 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)
Tail Swing With Counterweight
78.50 in (199.39 cm)
Tail Swing Without Counterweight
70.91 in (180.11 cm)
Track Belt/Shoe Width
17.70 in (44.96 cm)
Transport Height
104.60 in (265.68 cm)
Vertical Wall
162.20 in (411.99 cm)
Width Over Upper House
88.60 in (225.04 cm)
Dimensions - Standard Stick
Caterpillar 307.5 Mini Excavator Dimensions - Standard Stick specifications
Boom In Reach
66.20 in (168.15 cm)
Boom Swing - Left
_ -
Boom Swing - Right
_ -
Cab Height
99.00 in (251.46 cm)
Dig Depth
161.70 in (410.72 cm)
Ground Clearance
14.60 in (37.08 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)
Tail Swing With Counterweight
78.50 in (199.39 cm)
Tail Swing Without Counterweight
70.91 in (180.11 cm)
Track Belt/Shoe Width
17.70 in (44.96 cm)
Transport Height
100.70 in (255.78 cm)
Vertical Wall
141.90 in (360.43 cm)
Width Over Upper House
88.60 in (225.04 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
Gross Power - Iso 14396
57.90 hp (43.18 kw)
Net Power
55.90 hp (41.69 kw)
Rated Net Power - 2,400 Rpm - Iso 9249/Eec 80/1269
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)
Sound
Caterpillar 307.5 Mini Excavator Sound specifications
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)
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)
Weight Increase From Minimum Configuration
Caterpillar 307.5 Mini Excavator Weight Increase From Minimum Configuration specifications
Counterweight
552.00 lbs (250.38 kg)
Long Stick
146.00 lbs (66.22 kg)
Steel Tracks With Pads
661.00 lbs (299.82 kg)
Weights
Caterpillar 307.5 Mini Excavator Weights specifications
Maximum Operating Weight With Cab**
18,152.00 lbs (8,233.62 kg)
Minimum Operating Weight With Cab*
16,605.00 lbs (7,531.91 kg)
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
18,152.00 lbs (8,233.62 kg)
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