vs.

      Caterpillar 623E vs. Caterpillar 639D

      7 reasons to buy Caterpillar 639D:

      Tractor engine

      Full power 336 kW and 272.2 kW 19 % more or 63.8 kW
      Displacement 18 l. and 14.6 l. 19 % more or 3.4 l.

      Operation

      Fuel Capacity 1403 l. and 570 l. 59 % more or 833 l.

      Hoist

      Flights number 20 and 15 25 % more or 5

      Gear box

      Maximum forward speed 53 km/h and 48 km/h 9 % more or 5 km/h

      Cup

      Volume with top 26 m3 and 17.6 m3 32 % more or 8.4 m3
      Maximum cutting depth 381 mm and 330 mm 13 % more or 51 mm

      Neutral reasons:

      Weight

      Total operating unloaded 33702 kg and 56200 kg
      Front axle unloaded 21906 kg and 33158 kg
      Rear axle unloaded 11796 kg and 23042 kg
      Total operating loaded 58652 kg and 90200 kg
      Loaded front axle 30499 kg and 46002 kg
      Loaded rear axle 28153 kg and 44198 kg

      Tractor engine

      Model 3406 and 3408
      Manufacturer Caterpillar and Caterpillar

      Sizes

      Dimensional length 12610 mm and 14530 mm
      Overall width 3550 mm and 3960 mm
      Headroom 3940 mm and 4420 mm
      Wheelbase 7970 mm and 8990 mm

      Operation

      Tyre size 29.5-29 34PR (E-2) and 37.25-35 42PR E-3

      Gear box

      Forward gears number 8 and 8

      Cup

      Cut width 3500 mm and 3500 mm
      Nominal payload 24950 kg and 34000 kg

      Images

      Sizes

      1. Dimensional length 12610 mm 1. Dimensional length 14530 mm
      2. Overall width 3550 mm 2. Overall width 3960 mm
      3. Headroom 3940 mm 3. Headroom 4420 mm
      4. Wheelbase 7970 mm 4. Wheelbase 8990 mm