vs.

      Hitachi EX12-2 vs. Komatsu PC20R-8

      4 reasons to buy Hitachi EX12-2:

      Operation

      Hydraulic system fluid volume 30 l. and 29 l. 3 % more or 1 l.
      Engine oil volume 4.5 l. and 3.6 l. 20 % more or 0.9 l.
      Hydraulic system overflow valve pressure 21084.3 kPa and 21000 kPa 0 % more or 84.3 kPa
      Hydraulic pump flow rate 30.4 l/min and 59.6 l/min 49 % less or 29.2 l/min

      17 reasons to buy Komatsu PC20R-8:

      Swing device

      Rotation speed 9 rev / min and 8.5 rev / min 6 % more or 0.5 rev

      Sizes

      Width to outside of caterpillar track 1370 mm and 960 mm 30 % more or 410 mm
      Counterweight ground clearance 545 mm and 445 mm 18 % more or 100 mm

      Operation

      Fuel Capacity 35 l. and 20 l. 43 % more or 15 l.
      Cooling system fluid volume 4 l. and 3.5 l. 12 % more or 0.5 l.
      Generator current strength 40 amperes and 36 amperes 10 % more or 4 amperes

      Motor

      Effective power 17.4 kW and 12.2 kW 30 % more or 5.2 kW
      Power measured at 2600 rev / min and 2000 rev / min 23 % more or 600 rev
      Displacement 1.2 l. and 1.1 l. 8 % more or 0.1 l.
      Torque measured at 1600 rev / min and 1500 rev / min 6 % more or 100 rev
      Maximum torque 72.5 Nm and 63.7 Nm 12 % more or 8.8 Nm

      Carrier

      Specific ground pressure 1.6 lb / sq. inch and 3.8 lb / sq. inch 58 % less or 2.2 lb
      Maximum travel speed 4.3 km/h and 2.2 km/h 49 % more or 2.1 km/h

      Booms/sections features 1

      Maximum excavation depth 2350 mm and 1900 mm 19 % more or 450 mm
      Maximum radius along ground level 4250 mm and 3430 mm 19 % more or 820 mm
      Maximum loading height 2765 mm and 2190 mm 21 % more or 575 mm
      Maximum vertical wall digging depth 1900 mm and 1360 mm 28 % more or 540 mm

      Neutral reasons:

      Sizes

      Height to cab upper part 2280 mm and 2450 mm
      Rear platform swing radius 1060 mm and 1240 mm
      Caterpillar track length on ground level 1025 mm and 1340 mm

      Operation

      Working weight 1350 kg and 2535 kg
      Operating voltage 12 V and 12 V

      Motor

      Manufacturer Kubota and Komatsu
      Aspiration natural aspiration and natural aspiration
      Model D1105-KA and 3D78AE-3FA
      Cylinders number 3 and 3

      Carrier

      Shoe dimensions 230 mm and 250 mm
      Rolling bearings number on either side 3 and 3
      Track width 1025 mm and 1120 mm

      Booms/sections features 1

      Unit load-transfer height 2280 mm and 2450 mm
      Unit load-transfer length 3520 mm and 4250 mm
      Maximum cut height 3120 mm and 4030 mm

      Images

      Sizes

      2. Width to outside of caterpillar track 960 mm 2. Width to outside of caterpillar track 1370 mm
      4. Caterpillar track length on ground level 1025 mm 4. Caterpillar track length on ground level 1340 mm
      7. Height to cab upper part 2280 mm 7. Height to cab upper part 2450 mm
      8. Rear platform swing radius 1060 mm 8. Rear platform swing radius 1240 mm
      15. Counterweight ground clearance 445 mm 15. Counterweight ground clearance 545 mm

      Carrier

      6. Track width 1025 mm 6. Track width 1120 mm
      14. Shoe dimensions 230 mm 14. Shoe dimensions 250 mm

      Booms/sections features 1

      1. Unit load-transfer length 3520 mm 1. Unit load-transfer length 4320 mm
      3. Unit load-transfer height 2280 mm 3. Unit load-transfer height 2450 mm
      9. Maximum cut height 3120 mm 9. Maximum cut height 4205 mm
      10. Maximum loading height 2190 mm 10. Maximum loading height 2945 mm
      11. Maximum radius along ground level 3430 mm 11. Maximum radius along ground level 4510 mm
      12. Maximum vertical wall digging depth 1360 mm 12. Maximum vertical wall digging depth 2190 mm
      13. Maximum excavation depth 1900 mm 13. Maximum excavation depth 2550 mm