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 Certification Tier 4 Final
Engine Model Yanmar 4TNV88-C-PYB
Net Power – hp (kW) 37.4 (27.9)
Cylinders 4
Bore/Stroke 3.46 x 3.54 in (88 x 90 mm)
Net Max. Torque @ 1440 RPM: 97.2 lb·ft (131.8 N·m)
Cooling Liquid


Operating Weight 11,312 lb (5 130 kg)


Travel speeds: Forward/Reverse Low: 1.4 mph (2.2 kph)
High: 2.5 mph (4.0 kph)
Drawbar Pull 12,342 lb (54.9 kN)
Gradeability 58% (30°) Slope


Main pumps Tandem variable displacement/
axial piston pump
Max. rated flow x 2 13.2 gpm (49.9 L/min)
Auxiliary flow 13.2 gpm (49.9 L/min)
System relief pressure Standard: 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 valves 11-spool
Travel: Motors – 2: Two-speed axial piston
Final drive: Planetary gear reduction


Service Capacities
Fuel Tank 8 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 change 2.0 gal (7.4 L)
Radiator 1.6 gal (6.0 L)

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