vs.

      Caterpillar 621B vs. Caterpillar 637E

      1 reasons to buy Caterpillar 621B:

      Gear box

      Forward gears number 8 and 7 12 % more or 1

      6 reasons to buy Caterpillar 637E:

      Tractor engine

      Displacement 18 l. and 14.6 l. 19 % more or 3.4 l.

      Operation

      Fuel Capacity 1220 l. and 511 l. 58 % more or 709 l.

      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 437 mm and 340 mm 22 % more or 97 mm
      Cut width 3510 mm and 3020 mm 14 % more or 490 mm

      Neutral reasons:

      Weight

      Rear axle unloaded 9061.5 kg and 20846 kg
      Total operating loaded 51975 kg and 84863 kg
      Loaded front axle 28586 kg and 41583 kg
      Loaded rear axle 23389 kg and 43280 kg
      Total operating unloaded 30205 kg and 50843 kg
      Front axle unloaded 21143 kg and 29997 kg

      Tractor engine

      Manufacturer Caterpillar and Caterpillar
      Model 3406 and 3408

      Sizes

      Headroom 3630 mm and 4290 mm
      Wheelbase 7720 mm and 8770 mm
      Dimensional length 12700 mm and 14280 mm
      Overall width 3450 mm and 3940 mm

      Operation

      Tyre size 29.5-29 28PR (E-3) and 37.25-35 30 PR (E-3)

      Gear box

      Maximum forward speed 48 km/h and 48 km/h

      Cup

      Nominal payload 21770 kg and 34020 kg

      Images

      Sizes

      1. Dimensional length 12700 mm 1. Dimensional length 14280 mm
      2. Overall width 3450 mm 2. Overall width 3940 mm
      3. Headroom 3630 mm 3. Headroom 4290 mm
      4. Wheelbase 7720 mm 4. Wheelbase 8770 mm