CX55B Mini Excavator – Case Construction™

The CASE CX55B mini excavator sets the standards for digging power with its large boom and arm for a wider operating range and a rectangular cab design offering more room and outstanding visibility. With a wide cab and optimized control layout for comfortable and easy operation, this machine is sure to satisfy even the most demanding operators. Daily maintenance is made easy with ground level startup checks that are performed quickly and easily.



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More Information

Case CX55B Series BrochureCase CX55B Mini Excavator


Emissions CertificationTier 4 Final
Engine ModelYanmar 4TNV88-C-PYB
Net Power – hp (kW)37.4 (27.9)
Bore/Stroke3.46 x 3.54 in (88 x 90 mm)
Net Max. Torque @ 1440 RPM:97.2 lb·ft (131.8 N·m)


Operating Weight11,312 lb (5 130 kg)


Travel speeds: Forward/ReverseLow: 1.4 mph (2.2 kph)
High: 2.5 mph (4.0 kph)
Drawbar Pull12,342 lb (54.9 kN)
Gradeability58% (30°) Slope


Main pumpsTandem variable displacement/
axial piston pump
Max. rated flow x 213.2 gpm (49.9 L/min)
Auxiliary flow13.2 gpm (49.9 L/min)
System relief pressureStandard: 3,336 psi (230.0 bar)
Pilot control hydraulic system:Pump: Gear Pump
Maximum capacity: 4.0 gpm (15.2 L/min)
Relief pressure: 514 psi (35.4 bar)
Control valves11-spool
Travel:Motors – 2: Two-speed axial piston
Final drive: Planetary gear reduction


Service Capacities
Fuel Tank8 ft 2 in (2.49)
Hydraulic Tank:Refill capacity: 7.4 gal (27.9 L)
Total system: 15.2 gal (57.7 L)
Engine oil w/ filter change2.0 gal (7.4 L)
Radiator1.6 gal (6.0 L)

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