vs.

      Doosan DX30Z vs. Case CX31B

      10 reasons to buy Doosan DX30Z:

      Swing device

      Rotation speed 9.7 rev / min and 8.9 rev / min 8 % more or 0.8 rev

      Sizes

      Width to outside of caterpillar track 1550 mm and 1540 mm 1 % more or 10 mm

      Operation

      Generator current strength 40 amperes and 24 amperes 40 % more or 16 amperes
      Hydraulic system overflow valve pressure 20500 kPa and 159.7 kPa 99 % more or 20340.3 kPa
      Hydraulic pump flow rate 74.4 l/min and 76.8 l/min 3 % less or 2.4 l/min
      Hydraulic system fluid volume 50 l. and 48 l. 4 % more or 2 l.

      Carrier

      Specific ground pressure 29 kPa and 29.6 kPa 2 % less or 0.6 kPa
      Maximum travel speed 4.6 km/h and 4.5 km/h 2 % more or 0.1 km/h

      Booms/sections features 1

      Maximum vertical wall digging depth 2278 mm and 2160 mm 5 % more or 118 mm
      Maximum excavation depth 2838 mm and 2810 mm 1 % more or 28 mm

      10 reasons to buy Case CX31B:

      Sizes

      Clearance 330 mm and 300 mm 9 % more or 30 mm
      Counterweight ground clearance 570 mm and 535 mm 6 % more or 35 mm

      Operation

      Fuel Capacity 38 l. and 35 l. 8 % more or 3 l.
      Cooling system fluid volume 4.6 l. and 3.5 l. 24 % more or 1.1 l.
      Engine oil volume 6.7 l. and 5.5 l. 18 % more or 1.2 l.

      Motor

      Displacement 1.6 l. and 1.3 l. 19 % more or 0.3 l.
      Torque measured at 1440 rev / min and 1200 rev / min 17 % more or 240 rev
      Maximum torque 98.4 Nm and 87.9 Nm 11 % more or 10.5 Nm
      Effective power 21.2 kW and 18.1 kW 15 % more or 3.1 kW

      Booms/sections features 1

      Maximum loading height 3360 mm and 3122 mm 7 % more or 238 mm

      Neutral reasons:

      Sizes

      Rear platform swing radius 775 mm and 775 mm
      Caterpillar track length on ground level 1650 mm and 1540 mm
      Height to cab upper part 2480 mm and 2570 mm

      Operation

      Operating voltage 12 V and 12 V
      Working weight 3180 kg and 3030 kg

      Motor

      Cylinders number 3 and 3
      Manufacturer Yanmar and Yanmar
      Model 3TNV82A-PDB and 3TNV88-BPYB
      Power measured at 2400 rev / min and 2400 rev / min

      Carrier

      Rolling bearings number on either side 4 and 4
      Shoe dimensions 300 mm and 300 mm

      Booms/sections features 1

      Unit load-transfer height 1590 mm and 2570 mm
      Unit load-transfer length 4507 mm and 4390 mm
      Maximum cut height 4555 mm and 4770 mm

      Images

      Sizes

      4. Caterpillar track length on ground level 1650 mm 4. Caterpillar track length on ground level 1540 mm
      5. Clearance 300 mm 5. Clearance 330 mm
      7. Height to cab upper part 2480 mm 7. Height to cab upper part 2570 mm
      8. Rear platform swing radius 775 mm 8. Rear platform swing radius 775 mm
      15. Counterweight ground clearance 535 mm 15. Counterweight ground clearance 570 mm
      2. Width to outside of caterpillar track 1550 mm 2. Width to outside of caterpillar track 1540 mm

      Carrier

      14. Shoe dimensions 300 mm 14. Shoe dimensions 300 mm

      Booms/sections features 1

      1. Unit load-transfer length 4507 mm 1. Unit load-transfer length 4390 mm
      3. Unit load-transfer height 1590 mm 3. Unit load-transfer height 2570 mm
      9. Maximum cut height 4618 mm 9. Maximum cut height 4770 mm
      10. Maximum loading height 3185 mm 10. Maximum loading height 3360 mm
      12. Maximum vertical wall digging depth 2383 mm 12. Maximum vertical wall digging depth 2160 mm
      13. Maximum excavation depth 2948 mm 13. Maximum excavation depth 2810 mm