- Category: Mini Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 308 CR ➔
The Caterpillar 308 CR is a compact mini excavator designed for versatile construction and excavation tasks. Featuring a reduced tail swing, the 308 CR offers enhanced maneuverability in confined spaces, making it ideal for urban construction and landscaping projects. Powered by a fuel-efficient engine, it delivers reliable performance with low emissions. The machine includes advanced hydraulic systems for precise digging and lifting operations. Its durable undercarriage and robust build ensure long-term reliability and stability. The Caterpillar 308 CR mini excavator supports various attachments, increasing its functionality across multiple applications such as trenching, grading, and material handling.
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 (46 m)
Starting 2023 Model Year |
| Net Power | 70 hp (52 kw)
Starting 2023 Model Year |
| Operating Weight | 20,385 lbs (9,246 kg)
Starting 2023 Model Year |
| Operating Weight lbs (kg) | 20,678 (9,379.4)
Starting 2025 Model Year |
Blades
| Blade Height | 17 in (43 cm)
|
Dimensions - Long Stick
| Boom In Reach | 127 in (322 cm)
|
| Boom Swing - Left | 20 in (51 cm)
|
| Boom Swing - Right | 38 in (97 cm)
|
| Dig Depth | 183 in (464 cm)
|
| Maximum Blade Depth | 16 in (41 cm)
|
| Maximum Blade Height | 15 in (37 cm)
|
| Maximum Dig Height | 277 in (704 cm)
|
| Maximum Dump Clearance | 200 in (507 cm)
|
| Maximum Reach | 301 in (764 cm)
|
| Maximum Reach - Ground Level | 294 in (746 cm)
|
| O/A Shipping Length | 262 in (665 cm)
|
| O/A Track Width | 91 in (230 cm)
|
| O/A Undercarriage Length | 114 in (289 cm)
|
| Stick Length | 93 in (236 cm)
|
| Swing Bearing - Height | 29 in (73 cm)
|
| Track Belt/Shoe Width | 18 in (45 cm)
|
| Vertical Wall | 134 in (341 cm)
|
Dimensions - Standard Stick
| Boom In Reach | 120 in (306 cm)
|
| Boom Swing - Left | 20 in (51 cm)
|
| Boom Swing - Right | 38 in (97 cm)
|
| Dig Depth | 162 in (411 cm)
|
| Maximum Blade Depth | 16 in (41 cm)
|
| Maximum Blade Height | 15 in (37 cm)
|
| Maximum Dig Height | 265 in (674 cm)
|
| Maximum Dump Clearance | 187 in (476 cm)
|
| Maximum Reach | 281 in (714 cm)
|
| Maximum Reach - Ground Level | 274 in (695 cm)
|
| O/A Shipping Length | 259 in (657 cm)
|
| O/A Track Width | 91 in (230 cm)
|
| O/A Undercarriage Length | 114 in (289 cm)
|
| Stick Length | 72 in (182 cm)
|
| Swing Bearing - Height | 29 in (73 cm)
|
| Track Belt/Shoe Width | 18 in (45 cm)
|
| Vertical Wall | 118 in (299 cm)
|
Engine
| Bore | 4 in (9 cm)
|
| Displacement | 203 cu in (3,327 cu cm)
|
| Engine Model | Cat C3.3B
|
| Net Power | 70 hp (52 kw)
|
| Stroke | 5 in (12 cm)
|
Hydraulic System
| Auxiliary Circuit - Primary - Flow | 35 gpm (132 lpm)
|
| Auxiliary Circuit - Primary - Pressure | 4134 psi
|
| Auxiliary Circuit - Secondary - Flow | 9 gpm (34 lpm)
|
| Auxiliary Circuit - Secondary - Pressure | 4134 psi
|
| Digging Force - Bucket | 13,946 lbs (6,326 kg)
|
| Digging Force - Stick - Long | 8,032 lbs (3,643 kg)
|
| Digging Force - Stick - Standard | 9,509 lbs (4,313 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 gpm (167 lpm)
|
Service Refill Capacities
| Cooling System | 3 gal (10 l)
|
| Engine Oil | 3 gal (11 l)
|
| Fuel Tank | 39 gal (148 l)
|
| Hydraulic System | 27 gal (102 l)
|
| Hydraulic Tank | 14 gal (53 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 lbs (2,835 kg)
|
| Maximum Traction Force - Low Speed | 15,175 lbs (6,883 kg)
|
| Travel Speed - High | 3 mph (5 kph)
|
| Travel Speed - Low | 2 mph (3 kph)
|
Weights
| Operating Weight | 20,678 lbs (9,379 kg)
|
