vs.

      Caterpillar 621S vs. Caterpillar 637E

      1 reasons to buy Caterpillar 621S:

      Gear box

      Forward gears number 8 and 7 12 % more or 1

      8 reasons to buy Caterpillar 637E:

      Tractor engine

      Full power 335.6 kW and 208.8 kW 38 % more or 126.8 kW
      Displacement 18 l. and 10.5 l. 42 % more or 7.5 l.

      Operation

      Fuel Capacity 1220 l. and 545 l. 55 % more or 675 l.

      Gear box

      Maximum forward speed 48 km/h and 44.4 km/h 7 % more or 3.6 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 437 mm and 361 mm 17 % more or 76 mm
      Cut width 3510 mm and 3020 mm 14 % more or 490 mm

      Neutral reasons:

      Weight

      Loaded rear axle 24526 kg and 43280 kg
      Total operating unloaded 28281 kg and 50843 kg
      Front axle unloaded 18383 kg and 29997 kg
      Rear axle unloaded 9898 kg and 20846 kg
      Total operating loaded 50053 kg and 84863 kg
      Loaded front axle 25527 kg and 41583 kg

      Tractor engine

      Model 3306 and 3408
      Manufacturer Caterpillar and Caterpillar

      Sizes

      Dimensional length 12860 mm and 14280 mm
      Overall width 3470 mm and 3940 mm
      Headroom 3710 mm and 4290 mm
      Wheelbase 7650 mm and 8770 mm

      Operation

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

      Cup

      Nominal payload 21772 kg and 34020 kg

      Images

      Sizes

      1. Dimensional length 12860 mm 1. Dimensional length 14280 mm
      2. Overall width 3470 mm 2. Overall width 3940 mm
      3. Headroom 3710 mm 3. Headroom 4290 mm
      4. Wheelbase 7650 mm 4. Wheelbase 8770 mm