- Category: Mini Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 308 CR ➔
The Caterpillar 308 CR is a compact mini excavator designed for construction, utility, landscaping, and site preparation work. It features a reduced tail swing design for improved maneuverability in confined spaces, along with a hydraulic system suited for digging, trenching, grading, and material handling. The 308 CR is typically equipped with a comfortable operator station, auxiliary hydraulic capability, and compatibility with a range of attachments. Its size and transportability make it suitable for urban job sites and residential projects where space is limited. The Caterpillar 308 CR is part of Caterpillar's mini excavator lineup for versatile earthmoving applications.
General Specifications
| Digging Depth ft (m) | 15.2 (4.6)
Starting 2025 Model Year |
| Digging Reach ft. (m) | 25.1 (7.7)
Starting 2025 Model Year |
| Engine | C3.3B
Starting 2021 Model Year |
| Engine hp (kW) | 70.3 (52.4)
Starting 2025 Model Year |
| Max Digging Depth | 150.2 in ft (45.78 m)
Starting 2023 Model Year |
| Net Power | 69.50 hp (51.83 kw)
Starting 2023 Model Year |
| Operating Weight | 20,385.00 lbs (9,246.49 kg)
Starting 2023 Model Year |
| Operating Weight lbs (kg) | 20,678 (9,379.4)
Starting 2025 Model Year |
Blades
| Blade Height | 17.00 in (43.18 cm)
|
Dimensions - Long Stick
| Boom In Reach | 126.60 in (321.56 cm)
|
| Boom Swing - Left | 20.00 in (50.80 cm)
|
| Boom Swing - Right | 38.00 in (96.52 cm)
|
| Dig Depth | 182.80 in (464.31 cm)
|
| Maximum Blade Depth | 16.10 in (40.89 cm)
|
| Maximum Blade Height | 14.50 in (36.83 cm)
|
| Maximum Dig Height | 277.10 in (703.83 cm)
|
| Maximum Dump Clearance | 199.60 in (506.98 cm)
|
| Maximum Reach | 300.70 in (763.78 cm)
|
| Maximum Reach - Ground Level | 293.70 in (746.00 cm)
|
| O/A Shipping Length | 262.00 in (665.48 cm)
|
| O/A Track Width | 90.60 in (230.12 cm)
|
| O/A Undercarriage Length | 113.90 in (289.31 cm)
|
| Stick Length | 92.80 in (235.71 cm)
|
| Swing Bearing - Height | 28.90 in (73.41 cm)
|
| Track Belt/Shoe Width | 17.70 in (44.96 cm)
|
| Vertical Wall | 134.10 in (340.61 cm)
|
Dimensions - Standard Stick
| Boom In Reach | 120.40 in (305.82 cm)
|
| Boom Swing - Left | 20.00 in (50.80 cm)
|
| Boom Swing - Right | 38.00 in (96.52 cm)
|
| Dig Depth | 161.80 in (410.97 cm)
|
| Maximum Blade Depth | 16.10 in (40.89 cm)
|
| Maximum Blade Height | 14.50 in (36.83 cm)
|
| Maximum Dig Height | 265.20 in (673.61 cm)
|
| Maximum Dump Clearance | 187.40 in (476.00 cm)
|
| Maximum Reach | 281.10 in (713.99 cm)
|
| Maximum Reach - Ground Level | 273.60 in (694.94 cm)
|
| O/A Shipping Length | 258.70 in (657.10 cm)
|
| O/A Track Width | 90.60 in (230.12 cm)
|
| O/A Undercarriage Length | 113.90 in (289.31 cm)
|
| Stick Length | 71.80 in (182.37 cm)
|
| Swing Bearing - Height | 28.90 in (73.41 cm)
|
| Track Belt/Shoe Width | 17.70 in (44.96 cm)
|
| Vertical Wall | 117.80 in (299.21 cm)
|
Engine
| Bore | 3.70 in (9.40 cm)
|
| Displacement | 203.00 cu in (3,326.58 cu cm)
|
| Engine Model | Cat C3.3B
|
| Net Power | 70.30 hp (52.42 kw)
|
| Stroke | 4.70 in (11.94 cm)
|
Hydraulic System
| 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 | 13,946.00 lbs (6,325.81 kg)
|
| Digging Force - Stick - Long | 8,032.00 lbs (3,643.26 kg)
|
| Digging Force - Stick - Standard | 9,509.00 lbs (4,313.22 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
| Cooling System | 2.60 gal (9.84 l)
|
| Engine Oil | 3.00 gal (11.36 l)
|
| Fuel Tank | 39.00 gal (147.62 l)
|
| Hydraulic System | 27.00 gal (102.20 l)
|
| Hydraulic Tank | 14.00 gal (52.99 l)
|
Swing System
| Machine Swing Speed | 10.6 rpm
|
Travel System
| Gradeability - Maximum | 30 degrees
|
| Ground Pressure - Maximum Weight | 6 psi
|
| Ground Pressure - Minimum Weight | 5 psi
|
| Maximum Traction Force - High Speed | 6,250.00 lbs (2,834.96 kg)
|
| Maximum Traction Force - Low Speed | 15,175.00 lbs (6,883.27 kg)
|
| Travel Speed - High | 3.20 mph (5.15 kph)
|
| Travel Speed - Low | 1.90 mph (3.06 kph)
|
Weights
| Operating Weight | 20,678.00 lbs (9,379.39 kg)
|
