Engine ModelCat® C2.4 Turbo
Net Power50.6 HP (37.7 kW)
Bore3.4 in (87 mm)
Displacement146.5 in³ (2.4 l)
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 ModelCat® C2.4 Turbo
Net Power50.6 HP (37.7 kW)
Bore3.4 in (87 mm)
Displacement146.5 in³ (2.4 l)
Gross Power - ISO 1439653.1 HP (39.6 kW)
NoteMeets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards.
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/126950.6 HP (37.7 kW)
Stroke4 in (102.4 mm)
Operating Weight16028 lb (7270 kg)
Operating Weight - With Cab16028 lb (7270 kg)
Ground Pressure4.92 psi (33.9 kPa)
Gradeability - Maximum20°
Maximum Traction Force - High Speed7599 lbf (33.8 kN)
Maximum Traction Force - Low Speed13331 lbf (59.3 kN)
Travel Speed - High3.17 mile/h (5.1 km/h)
Travel Speed - Low1.99 mile/h (3.2 km/h)
Auxiliary Circuit - Primary (280 bar/4,061 psi)33.8 gal/min (128 l/min)
Auxiliary Circuit - Secondary (280 bar/4,061 psi)8.7 gal/min (33 l/min)
Digging Force - Bucket11375 lbf (50.6 kN)
Digging Force - Stick - Standard8340 lbf (37.1 kN)
NoteLoad sensing hydraulics with variable displacement piston pump.
Operating Pressure - Equipment4061 psi (28000 kPa)
Operating Pressure - Swing4061 psi (28000 kPa)
Operating Pressure - Travel4061 psi (28000 kPa)
Pump Flow at 2,400 rpm40.9 gal/min (154 l/min)
Machine Swing Speed10.2 r/min (10.2 r/min)
NoteAutomatic swing break, spring applied, hydraulic release.
Width90.6 in (2300 mm)
Height17.5 in (445 mm)
Dig Depth15.3 in (390 mm)
Lift Height13.8 in (350 mm)
Cooling System3.7 gal (US) (14 l)
Engine Oil2.9 gal (US) (11 l)
Hydraulic Tank13.5 gal (US) (51 l)
Fuel Tank35.7 gal (US) (135 l)
Hydraulic System20.6 gal (US) (78 l)
Machine Overhang1.2 ft (358 mm)
Stick Length - Standard5.5 ft (1670 mm)
Average Exterior Sound Pressure98 dB(A) ISO 6395 – Dynamic Test
Boom Height - Shipping Position8.6 ft (2630 mm)
Boom In Reach5.5 ft (1690 mm)
Dig Depth13.4 ft (4070 mm)
Maximum Blade Depth1.1 ft (350 mm)
Maximum Blade Height1.3 ft (390 mm)
Maximum Dig Height23.8 ft (7240 mm)
Maximum Dump Clearance17 ft (5190 mm)
Maximum Reach20.7 ft (6300 mm)
Maximum Reach - Ground Level20.2 ft (6160 mm)
O/A Shipping Height8.6 ft (2630 mm)
O/A Shipping Length19.9 ft (6080 mm)
O/A Track Width7.2 ft (2200 mm)
O/A Undercarriage Length9 ft (2760 mm)
Swing Bearing - Height2.5 ft (775 mm)
Tail Swing - Standard Counterweight5.7 ft (1750 mm)
Track Belt/Shoe Width1.5 ft (450 mm)
Vertical Wall11.9 ft (3630 mm)
Note (1)Each track is driven by one independent 2-speed motor.
Note (2)Drive modules are integrated into the roller frame for total protection.
Note (3)Straight line travel when tracking and operating the front linkage simultaneously.
Number of Carrier Rollers1 per side
Number of Track Rollers5 per side
Track Roller TypeCenter flange
Note (1)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.

Benefits and Features

The standard tail swing design incorporates a counterweight that extends further back on the machine for greater stability. The standard tail swing paired with a fixed boom on the 307E2 provides superior reach and lift. The operator environment includes a high quality suspension seat, easy to adjust armrests and 100% pilot controls which offer consistent and long-lasting controllability.

High Definition Hydraulic System provides a load sensing and flow sharing capability leading to operational precision, efficient performance and greater controllability. Power on Demand provides optimal efficiency and performance the moment you need it. This automatic system ensures fuel efficiency through appropriate engine rating to meet all operational needs as required.

Broad range of Cat Work Tools make the Cat Mini Excavator a versatile machine, able to meet the requirements of any job site. 180 degrees of bucket rotation provides greater material retention during truck loading and easier flat wall digging without having to reposition the machine.

Front shovel bucket orientation provides the operator with more ways to get the job done faster. COMPASS Control Panel is a standard feature that allows the operator to easily adjust auxiliary flows to achieve the optimal work tool performance, activate auto idle for improved fuel efficiency and utilize the security system to ensure protection of valuable assets with the simple touch of a button. The Site Reference System included in the COMPASS monitor provides output from pitch and roll sensors to aid in grading and level trenching. This impacts accuracy and productivity for job site finishing. Rearview camera improves operator productivity and efficiency through increased visibility, making work easier to complete.

Convenient service and maintenance requirements include ease of access to daily check points, 500 hour engine oil and filter change period, 500 hour grease interval on front implement, S·O·SSM oil sampling valve and overall long term durability.

All Cat Mini Excavators from 3.5 metric tons to 8 metric tons are ROPS, TOPS and Top Guard Level II certified and include the Cat Interlock (hydraulic lockout) System, a certified accumulator which allows for auxiliary pressure to be released, making connecting and disconnecting work tools safer and easier, and a travel alarm. All of these safety features are standard on the E2 model lineup (travel alarm optional in Europe).

Standard Equipment

  • Cat C2.4 diesel engine (meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards)
  • 1-way and 2-way (combined function)
  • 100% pilot control ergonomic joysticks
  • Dozer blade with float function
  • 180 degree bucket rotation
  • 12 volt electrical system
  • Cab and boom light with time delay capability
  • Anti-theft system (COMPASS)

Optional Equipment

  • Engine block heater
  • Track, triple grouser (steel), 450 mm (18 in)
  • Quick coupler: manual or hydraulic
  • Mirror, cab rear
  • Front wire mesh guard
  • Product Link™