CX31B

CX31B
Zero tail swing allows unobstructed operation near obstacles, tree lines and foundations.
Center swing boom allows the operator to dig, or operate attachments, directly parallel to building foundations, fences, trees, or other obstacles.
Foot pedal swing-boom control allows for simultaneous moves of swing boom and house for rapid machine positioning.
Swing-boom control button allows easy operation and flexibility to tackle any restricted job site.
Standard, durable rubber tracks provide low ground pressure reducing job site surface damage.  Optional steel tracks provide protection in adverse ground conditions
Hydraulically controlled backfill blade provides added machine stability and is ideal for backfilling.  Enhance back filling of trenches with the optional angled blade.
Pilot controls and proportional flow hydraulics are smooth and intuitive for responsive performance, low fatigue and precise attachment control.
One-piece, swing-out side access panel gives ground line access for easy servicing and maintenance increasing uptime while lowering operating costs.
Main Pumps Total Flow20.2 gpm | 76.8 L-min
Displacement100 in3 | 1642 cc
Max Reach16'-2" | 4.93 m
Max Dig Depth of Vertical Wall7'-1" | 2160 mm
Arm Length3'-11" | 1190 mm
Operating Weight6,679 lb | 3030 kg
Depth of 8' Bottomn/a
Reach at Ground Level15'-6" | 4780 mm
Drawbar Pull8,655 lb | 3926 kg
Dump Height11'-0" | 3352 mm
Arm Breakout Force, Boost, SAE3,867 lbf | 17.2 kN
Bucket Breakout Force, Boost, SAE8,430 lbf | 37.5 kN
Max Bucket Size0.16 yd3 | 0.120 m3
Boom Length7'-7" | 2310 mm
Swing Torque752 lbf | 1.02 Nm
Net Engine Power28.4 hp | 21 kW
Max Dig Depth9'-2" | 2790 mm
Tailswing Radius2'-7" | 775 mm
OPERATOR’S COMPARTMENT

  • ROPS/FOPS three post canopy

  • Operator’s controls:

    • Pilot operated hand controls and foot pedals

  • Display includes:

    • Engine oil pressure, water temperature lamp, air filter lamp, water separator detection lamp, low fuel warning lamp, battery charge lamp, glow plug indicator lamp, water temperature gauge, fuel gauge and hourmeter

  • Adjustable seat with seat belt

  • Arm rests

ENGINE

  • Yanmar 3TNV88-BPYB diesel

  • 4 Cycle

  • Water cooled

  • Direct injection

  • One touch decelerator

  • Engine access under rear hood

  • Dry type air cleaner with restriction indicator

  • Glow plug starting aid

ELECTRICAL

  • 12-volt electrical starting system

  • Heavy-duty battery

  • Horn

HYDRAULICS

  • Auxiliary hydraulics (single/bi-directional) and plumbing to arm

  • Large hydraulic oil cooler

  • Control pattern selector valve

TRACK DRIVE

  • Rubber tracks

  • Automatic 2 speed travel

  • Fully hydrostatic drive system

  • Sealed and lubricated track rollers

  • Track tension adjustment (grease type)

  • Disc type parking brake (auto release and apply)

UPPER STRUCTURE

  • Zero tail swing

  • Swing lock

  • Swing brake

  • Swing shock valve

OTHER

  • Swing boom (70° left/60° right)

  • Hydraulic backfill blade

OPERATOR’S COMPARTMENT

  • Cab enclosure with heater

OTHER

  • Steel tracks

  • 5 ft 3 in (1.59 m) arm

  • Mechanical coupler

  • Rigid thumb

  • Rigid thumb-coupler

Base & Extended Warranty Coverage*
12 Month / 1000 Hour Full Coverage Base Warranty

Purchased Protection
Purchased Protection Plan is an extension of the factory base and extended coverage available at an additional cost.  Your Case dealer can help you determine the plan that fits your needs.  Plans are available up to three-years / 3,000 hours on Case Compact Excavator models.

*Please see your Case dealer for limitations, exclusions, and confirmation of policies in effect.  The Case Warranty remains in effect during the Warranty Period if the owner performs the required maintenance at the recommended intervals outlined in the product’s operator’s manual and the unit is operated within its rated capacity.  Genuine Case service parts or Case approved service parts that meet Case specifications must be used for maintenance and repairs.

Compact Excavators

Compare Models
ModelNet Engine PowerOperating Weight
CX17B15.15 hp | 11.3 kW3,638 lb | 1650 kg
CX27B21.3 hp | 16 kW5,556 lb | 2520 kg
CX31B28.4 hp | 21 kW6,679 lb | 3030 kg
CX36B28.4 hp | 21 kW7,958 lb | 3610 kg
CX50B39.8 hp | 29.3 kW10,261 lb | 4660 kg

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