vs.

      Komatsu WA80-5 vs. Case 621EXT

      5 reasons to buy Komatsu WA80-5:

      Operation

      Turn radius 3825 mm and 5245 mm 27 % less or 1420 mm

      Motor

      Power measured at 2350 rev / min and 1800 rev / min 23 % more or 550 rev

      Hydraulic system

      Lifting time 4.9 sec and 6.3 sec 22 % less or 1.4 sec
      Lowering time 2.8 sec and 4.7 sec 40 % less or 1.9 sec

      Gear box

      Maximum reverse gear 30 km/h and 25 km/h 17 % more or 5 km/h

      16 reasons to buy Case 621EXT:

      Sizes

      Clearance 370 mm and 300 mm 19 % more or 70 mm

      Shovel

      Breakout power 108.1 kN and 4620 kN 98 % less or 4511.9 kN
      Unloading ground clearance at maximum lifting 2792 mm and 2425 mm 13 % more or 367 mm

      Operation

      Cooling system fluid volume 36 l. and 9.1 l. 75 % more or 26.9 l.
      Engine oil volume 13.2 l. and 7.5 l. 43 % more or 5.7 l.
      Front axle / differential fluid volume 22 l. and 8.6 l. 61 % more or 13.4 l.
      Rear axle / differential fluid volume 22 l. and 8.6 l. 61 % more or 13.4 l.
      Static tipping weight 10603 kg and 4325 kg 59 % more or 6278 kg
      Fuel Capacity 246 l. and 84 l. 66 % more or 162 l.
      Hydraulic system fluid volume 147.6 l. and 30 l. 80 % more or 117.6 l.

      Motor

      Effective power 109 kW and 45 kW 59 % more or 64 kW
      Displacement 6.7 l. and 3.3 l. 51 % more or 3.4 l.
      Cylinders number 6 and 4 33 % more or 2

      Gear box

      Forward gears number 4 and 2 50 % more or 2
      Reverse gears number 3 and 2 33 % more or 1
      Maximum forward speed 38.6 km/h and 30 km/h 22 % more or 8.6 km/h

      Neutral reasons:

      Sizes

      Height to cab upper part 2665 mm and 3395 mm
      Wheelbase 2200 mm and 2900 mm
      Hinge axis maximum height 3210 mm and 3956 mm
      Length with bucket on ground level 5480 mm and 7593 mm
      Between tyres width 1875 mm and 2523 mm

      Shovel

      Shovel width 1915 mm and 2602 mm

      Operation

      Working weight 5640 kg and 13022.2 kg

      Motor

      Manufacturer Komatsu and Case
      Model 4D95-LE3 and Family IV, 667TA/EDB, III Level III certified
      Aspiration natural aspiration and Turbocharging with subsequent air cooling (by a cooling radiator)

      Hydraulic system

      Type of pump Open hydraulic system and in the middle position with locking with pressure / flow compensation
      Overflow valve pressure 0 kPa and 24822 kPa

      Gear box

      Transmission type Hydrostatic transmission, switchable in all directions under full load and 4 forward / 3 reverse gears proportional with electronic control module

      Images

      Sizes

      1. Length with bucket on ground level 5480 mm 1. Length with bucket on ground level 7593 mm
      2. Between tyres width 1875 mm 2. Between tyres width 2523 mm
      3. Height to cab upper part 2665 mm 3. Height to cab upper part 3395 mm
      4. Wheelbase 2200 mm 4. Wheelbase 2900 mm
      5. Clearance 300 mm 5. Clearance 370 mm
      6. Hinge axis maximum height 3210 mm 6. Hinge axis maximum height 3956 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2425 mm 7. Unloading ground clearance at maximum lifting 2792 mm