Overview
The Cat® 307E2 Mini Hydraulic Excavator delivers high performance, durability and versatility in a standard tail swing design to help you work in a variety of applications.
Engine
Units:
| Engine Model | Cat® C2.4 Turbo | Cat® C2.4 Turbo |
| Net Power | 50.6 HP | 37.7 kW |
| Bore | 3.4 in | 87.0 mm |
| Displacement | 146.5 in³ | 2.4 l |
| Gross Power - ISO 14396 | 53.1 HP | 39.6 kW |
| Note | Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards. | Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards. |
| Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/1269 | 50.6 HP | 37.7 kW |
| Stroke | 4.0 in | 102.4 mm |
Weights
| Operating Weight | 16028.0 lb | 7270.0 kg |
| Operating Weight - With Cab | 16028.0 lb | 7270.0 kg |
| Note (1) | Weight with steel tracks with rubber pads, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines. | Weight with steel tracks with rubber pads, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines. |
| Note (2) | Weight varies depending on machine configuration. | Weight varies depending on machine configuration. |
Travel System
| Ground Pressure | 4.92 psi | 33.9 kPa |
| Gradeability - Maximum | 20° | 20° |
| Maximum Traction Force - High Speed | 7599.0 lbf | 33.8 kN |
| Maximum Traction Force - Low Speed | 13331.0 lbf | 59.3 kN |
| Travel Speed - High | 3.17 mile/h | 5.1 km/h |
| Travel Speed - Low | 1.99 mile/h | 3.2 km/h |
| Note (1) | Each track is driven by one independent 2-speed motor. | Each track is driven by one independent 2-speed motor. |
| Note (2) | Drive modules are integrated into the roller frame for total protection. | Drive modules are integrated into the roller frame for total protection. |
| Note (3) | Straight line travel when tracking and operating the front linkage simultaneously. | Straight line travel when tracking and operating the front linkage simultaneously. |
Hydraulic System
| Auxiliary Circuit - Primary (280 bar/4,061 psi) | 33.8 gal/min | 128.0 l/min |
| Auxiliary Circuit - Secondary (280 bar/4,061 psi) | 8.7 gal/min | 33.0 l/min |
| Digging Force - Bucket | 11375.0 lbf | 50.6 kN |
| Digging Force - Stick - Standard | 8340.0 lbf | 37.1 kN |
| Note | Load sensing hydraulics with variable displacement piston pump. | Load sensing hydraulics with variable displacement piston pump. |
| Operating Pressure - Equipment | 4061.0 psi | 28000.0 kPa |
| Operating Pressure - Swing | 4061.0 psi | 28000.0 kPa |
| Operating Pressure - Travel | 4061.0 psi | 28000.0 kPa |
| Pump Flow at 2,400 rpm | 40.9 gal/min | 154.0 l/min |
Swing System
| Machine Swing Speed | 10.2 r/min | 10.2 r/min |
| Note | Automatic swing break, spring applied, hydraulic release. | Automatic swing break, spring applied, hydraulic release. |
Blade
| Width | 90.6 in | 2300.0 mm |
| Height | 17.5 in | 445.0 mm |
| Dig Depth | 15.3 in | 390.0 mm |
| Lift Height | 13.8 in | 350.0 mm |
Service Refill Capacities
| Cooling System | 3.7 gal (US) | 14.0 l |
| Engine Oil | 2.9 gal (US) | 11.0 l |
| Hydraulic Tank | 13.5 gal (US) | 51.0 l |
| Fuel Tank | 35.7 gal (US) | 135.0 l |
| Hydraulic System | 20.6 gal (US) | 78.0 l |
Operating Specifications
| Machine Overhang | 1.2 ft | 358.0 mm |
| Stick Length - Standard | 5.5 ft | 1670.0 mm |
Cab
| Average Exterior Sound Pressure | 98 dB(A) ISO 6395 – Dynamic Test | 98 dB(A) ISO 6395 – Dynamic Test |
Dimensions - Standard Stick
| Boom Height - Shipping Position | 8.6 ft | 2630.0 mm |
| Boom In Reach | 5.5 ft | 1690.0 mm |
| Dig Depth | 13.4 ft | 4070.0 mm |
| Maximum Blade Depth | 1.1 ft | 350.0 mm |
| Maximum Blade Height | 1.3 ft | 390.0 mm |
| Maximum Dig Height | 23.8 ft | 7240.0 mm |
| Maximum Dump Clearance | 17.0 ft | 5190.0 mm |
| Maximum Reach | 20.7 ft | 6300.0 mm |
| Maximum Reach - Ground Level | 20.2 ft | 6160.0 mm |
| O/A Shipping Height | 8.6 ft | 2630.0 mm |
| O/A Shipping Length | 19.9 ft | 6080.0 mm |
| O/A Track Width | 7.2 ft | 2200.0 mm |
| O/A Undercarriage Length | 9.0 ft | 2760.0 mm |
| Swing Bearing - Height | 2.5 ft | 775.0 mm |
| Tail Swing - Standard Counterweight | 5.7 ft | 1750.0 mm |
| Track Belt/Shoe Width | 1.5 ft | 450.0 mm |
| Vertical Wall | 11.9 ft | 3630.0 mm |
Undercarriage
| Number of Carrier Rollers | 1 per side | 1 per side |
| Number of Track Rollers | 5 per side | 5 per side |
| Track Roller Type | Center flange | Center flange |
