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Current number of specifications

Hyundai R55W-7 Mobile Excavator

Selected Dimensions

Boom/Stick Option
I. Max Cutting Height19.9 ft in6070 mm
J. Max Loading Height14.2 ft in4340 mm
K. Max Reach Along Ground20.2 ft in6150 mm
M. Max Digging Depth11.5 ft in3500 mm
B. Overall Width6.3 in1925 mm
D. Wheelbase6.9 ft in2100 mm
E. Ground Clearance0.95 ft in290 mm
G. Height to Top of Cab9.4 ft in2850 mm
H. Tail Swing Radius5.4 ft in1650 mm
N. Upper Structure Clearance3.2 ft in986 mm


Gross Power57 hp42.5 kw
Net Power55 hp41 kw
Power Measured @2400 rpm
Displacement186 cu in3 L
Torque Measured @1440 rpm
Net Torque149 lb ft202 Nm
Number of Cylinders4
Fuel Capacity31.7 gal120 L
Operating Weight12015.2 lb5450 kg
Cooling System Fluid Capacity2.6 gal10 L
Engine Oil Capacity2.4 gal9.2 L
Front Diff Fluid Capacity1.5 gal5.7 L
Rear Diff Fluid Capacity1.2 gal4.6 L
Hydraulic System Fluid Capacity18.5 gal70 L
Operational Voltage12 V
Alternator Supplied Amperage55 amps
Hydraulic System Relief Valve Pressure3130 psi21580.6 kPa
Hydraulic Pump Typetwo variable displacement piston pumps
Hydraulic Pump Flow Capacity31.7 gal/min120 L/min
Tire Size12.0x16.5-12PR
Type4-wheel hydrastatic drive, mesh, helical gear transmission
Number of Forward Gears2
Number of Reverse Gears2
Max Travel Speed16.8 mph27 km/h
Swing Mechanism
Swing Speed9.9 rpm
Reference Bucket Capacity0.24 yd30.18 m3
Boom/Stick Option (MEX) 1
Boom/Stick Option (MEX) 1Boom 9'10" (3000mm)/Stick 5'3" (1600mm)
Max Digging Depth11.5 ft in3500 mm
Max Reach Along Ground20.2 ft in6150 mm
Max Cutting Height19.9 ft in6070 mm
Max Loading Height14.2 ft in4340 mm
Boom/Stick Option (MEX) 2
Boom/Stick Option (MEX) 2Boom 9'10" (3000mm)/Stick 6'3" (1900mm)
Max Digging Depth12.5 ft in3800 mm
Max Reach Along Ground21.1 ft in6430 mm
Max Cutting Height20.5 ft in6260 mm
Max Loading Height14.9 ft in4530 mm
Overall Width6.3 in1925 mm
Height to Top of Cab9.4 ft in2850 mm
Wheelbase6.9 ft in2100 mm
Ground Clearance0.95 ft in290 mm
Upper Structure Clearance3.2 ft in986 mm
Tail Swing Radius5.4 ft in1650 mm