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Current number of specifications

Liebherr A311 Mobile Excavator

Selected Dimensions

Boom/Stick Option (MEX) 1
A. Shipping Length of Unit28.5 ft in8700 mm
I. Max Cutting Height21.8 ft in6650 mm
J. Max Loading Height22.1 ft in6750 mm
K. Max Reach Along Ground27.6 ft in8400 mm
M. Max Digging Depth13.5 ft in4100 mm


Number of Cylinders4
Gross Power hp kw
Net Power91 hp67.9 kw
Power Measured @2000 rpm
Displacement244.1 cu in4 L
AspirationDirect Injection Turbo-charged
Fuel Capacity56.8 gal215 L
Operating Weight25573.6 lb11600 kg
Operational Voltage24 V
Alternator Supplied Amperage55 amps
Hydraulic System Relief Valve Pressure5076.3 psi35000 kPa
Hydraulic Pump TypeVariable Displacement, Swashplate Pump
Hydraulic Pump Flow Capacity58.1 gal/min220 L/min
Tire Size9.00-20
TypeOversized two speed power shift transmission and integrated protection with additional creeper speed
Max Travel Speed12.4 mph20 km/h
Swing Mechanism
Swing Speed9 rpm
Swing Torque lb ft30 Nm
Reference Bucket Capacity0.38 yd30.29 m3
Minimum Bucket Capacity0.13 yd30.1 m3
Maximum Bucket Capacity0.39 yd30.3 m3
Boom/Stick Option (MEX) 1
Boom/Stick Option (MEX) 1Hydro. Adjustable Boom 2350mm / Stick 2050mm
Shipping Length of Unit28.5 ft in8700 mm
Max Digging Depth13.5 ft in4100 mm
Max Reach Along Ground27.6 ft in8400 mm
Max Cutting Height21.8 ft in6650 mm
Max Loading Height22.1 ft in6750 mm