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Current number of specifications

Case CX31B Mini Excavator

Selected Dimensions

Boom/Stick Option (HEX) 1
A. Shipping Length of Unit14.4 ft in4390 mm
C. Shipping Height of Unit8.4 ft in2570 mm
I. Max Cutting Height15.6 ft in4770 mm
J. Max Loading Height11 ft in3360 mm
K. Max Reach Along Ground15.5 ft in4780 mm
L. Max Vertical Wall Digging Depth7.1 ft in2160 mm
M. Max Digging Depth9.2 ft in2810 mm
B. Width to Outside of Tracks5.1 ft in1540 mm
D. Length of Track on Ground5.1 ft in1540 mm
E. Ground Clearance1.1 ft in330 mm
G. Height to Top of Cab8.4 ft in2570 mm
H. Tail Swing Radius2.6 ft in775 mm
O. Counterweight Clearance1.9 ft in570 mm
N. Shoe Size11.8 in300 mm


Net Power28.4 hp21.2 kw
Power Measured @2400 rpm
Displacement100 cu in1.6 L
Torque Measured @1440 rpm
Max Torque72.6 lb ft98.4 Nm
Number of Cylinders3
Operating Weight6679 lb3030 kg
Fuel Capacity10 gal38 L
Cooling System Fluid Capacity1.2 gal4.6 L
Hydrauilc System Fluid Capacity12.7 gal48 L
Engine Oil Capacity1.8 gal6.7 L
Operating Voltage12 V
Alternator Supplied Amperage24 amps
Hydraulic System Relief Valve Pressure3336 psi159.7 kPa
Hydraulic Pump Flow Capacity20.2 gal/min76.8 L/min
Swing Mechanism
Swing Speed8.9 rpm
Shoe Size11.8 in300 mm
Number of Carrier Rollers per Side1
Number of Track Rollers per Side4
Ground Pressure4.3 psi29.6 kPa
Max Travel Speed2.8 mph4.5 km/h
Drawbar Pull8655 lb38.5 kN
Reference Bucket Capacity0.12 yd30.09 m3
Minimum Bucket Capacity0.08 yd30.06 m3
Maximum Bucket Capacity0.16 yd30.12 m3
Boom/Stick Option (HEX) 1
Boom/Stick Option (HEX) 1Boom 7'7" (2310mm)/ Stick 3'11" (1190mm)
Shipping Height of Unit8.4 ft in2570 mm
Shipping Length of Unit14.4 ft in4390 mm
Max Digging Depth9.2 ft in2810 mm
Max Reach Along Ground15.5 ft in4780 mm
Max Cutting Height15.6 ft in4770 mm
Max Loading Height11 ft in3360 mm
Max Vertical Wall Digging Depth7.1 ft in2160 mm
Width to Outside of Tracks5.1 ft in1540 mm
Height to Top of Cab8.4 ft in2570 mm
Ground Clearance1.1 ft in330 mm
Counterweight Clearance1.9 ft in570 mm
Tail Swing Radius2.6 ft in775 mm
Length of Track on Ground5.1 ft in1540 mm