vs.

      Caterpillar 621B vs. Caterpillar 631D

      9 reasons to buy Caterpillar 631D:

      Tractor engine

      Effective power 335.6 kW and 246.1 kW 27 % more or 89.5 kW
      Power measured at 2000 rev / min and 1900 rev / min 5 % more or 100 rev
      Displacement 18 l. and 14.6 l. 19 % more or 3.4 l.

      Operation

      Fuel Capacity 946.4 l. and 511 l. 46 % more or 435.4 l.

      Gear box

      Maximum forward speed 49.9 km/h and 48 km/h 4 % more or 1.9 km/h

      Cup

      Volume with top 23.7 m3 and 15.3 m3 35 % more or 8.4 m3
      Brimmed volume 16.1 m3 and 10.7 m3 34 % more or 5.4 m3
      Maximum cutting depth 482.6 mm and 340 mm 30 % more or 142.6 mm
      Cut width 3505.2 mm and 3020 mm 14 % more or 485.2 mm

      Neutral reasons:

      Weight

      Total operating unloaded 30205 kg and 40324.4 kg

      Tractor engine

      Model 3406 and 3408

      Sizes

      Dimensional length 12700 mm and 14249.4 mm
      Overall width 3450 mm and 3962.4 mm
      Headroom 3630 mm and 4166.6 mm
      Wheelbase 7720 mm and 8778.2 mm

      Operation

      Tyre size 29.5-29 28PR (E-3) and 33.25x35, 38PR

      Images

      Sizes

      1. Dimensional length 12700 mm 1. Dimensional length 14249.4 mm
      2. Overall width 3450 mm 2. Overall width 3962.4 mm
      3. Headroom 3630 mm 3. Headroom 4166.6 mm
      4. Wheelbase 7720 mm 4. Wheelbase 8778.2 mm