vs.

      Case 621DXT vs. John Deere 844K Z-Bar

      7 reasons to buy Case 621DXT:

      Sizes

      Clearance 474 mm and 460 mm 3 % more or 14 mm

      Shovel

      Breakout power 118.9 kN and 212.9 kN 44 % less or 94.0 kN

      Operation

      Turn radius 5175 mm and 6300 mm 18 % less or 1125 mm

      Motor

      Power measured at 2000 rev / min and 1600 rev / min 20 % more or 400 rev
      Torque measured at 1200 rev / min and 900 rev / min 25 % more or 300 rev

      Hydraulic system

      Lifting time 5.4 sec and 5.9 sec 8 % less or 0.5 sec
      Unloading time 1.7 sec and 1.9 sec 11 % less or 0.2 sec

      20 reasons to buy John Deere 844K Z-Bar:

      Sizes

      Radius at maximum lifting and unloading 1490 mm and 1141 mm 23 % more or 349 mm

      Shovel

      Unloading ground clearance at maximum lifting 3320 mm and 2877 mm 13 % more or 443 mm
      Brimmed bucket capacity 4.7 m3 and 1.9 m3 60 % more or 2.8 m3

      Operation

      Cooling system fluid volume 52 l. and 23.8 l. 54 % more or 28.2 l.
      Transmission fluid volume 45.4 l. and 18.9 l. 58 % more or 26.5 l.
      Front axle / differential fluid volume 55 l. and 22 l. 60 % more or 33 l.
      Rear axle / differential fluid volume 59 l. and 22 l. 63 % more or 37 l.
      Static tipping weight 23355 kg and 9216.1 kg 61 % more or 14138.9 kg
      Fuel Capacity 553 l. and 189.3 l. 66 % more or 363.7 l.
      Hydraulic system fluid volume 244 l. and 113.6 l. 53 % more or 130.4 l.
      Generator current strength 80 amperes and 70 amperes 12 % more or 10 amperes
      Engine oil volume 38 l. and 16.2 l. 57 % more or 21.8 l.

      Motor

      Maximum torque 1793.7 Nm and 690.1 Nm 62 % more or 1103.6 Nm
      Torque increase 44 % and 33 % 25 % more or 11 %
      Effective power 283.4 kW and 101.4 kW 64 % more or 182.0 kW
      Displacement 13.5 l. and 6.7 l. 50 % more or 6.8 l.

      Hydraulic system

      Pump bandwidth 621 l/min and 171.1 l/min 72 % more or 449.9 l/min
      Lowering time 3.5 sec and 4.4 sec 20 % less or 0.9 sec

      Gear box

      Maximum forward speed 40.5 km/h and 38.6 km/h 5 % more or 1.9 km/h
      Maximum reverse gear 27.3 km/h and 25.1 km/h 8 % more or 2.2 km/h

      Neutral reasons:

      Sizes

      Wheelbase 2900 mm and 3700 mm
      Hinge axis maximum height 3961 mm and 4620 mm
      Length with bucket on ground level 7121 mm and 9650 mm
      Between tyres width 2382 mm and 3194 mm
      Height to cab upper part 3306 mm and 3760 mm

      Operation

      Rear axle oscillating 24 degrees and 26 degrees
      Tyre size 20.5x25 and 29.5 R 25
      Working weight 12644.8 kg and 32037 kg
      Operating voltage 24 V and 24 V

      Motor

      Cylinders number 6 and 6
      Manufacturer Case and John Deere
      Model 668TA/M2 and 6135H, III Level III certified
      Aspiration Turbocharging with subsequent air cooling (by a cooling radiator) and Turbocharger with charge air cooler by oncoming air flow

      Hydraulic system

      Type of pump variable displacement with locking in the middle position and two variable displacement piston pumps, axial, with load sensing
      Overflow valve pressure 24993.5 kPa and 24131.6 kPa

      Gear box

      Forward gears number 4 and 4
      Reverse gears number 3 and 3

      Images

      Sizes

      1. Length with bucket on ground level 7121 mm 1. Length with bucket on ground level 9650 mm
      2. Between tyres width 2382 mm 2. Between tyres width 3194 mm
      3. Height to cab upper part 3306 mm 3. Height to cab upper part 3760 mm
      4. Wheelbase 2900 mm 4. Wheelbase 3700 mm
      5. Clearance 474 mm 5. Clearance 460 mm
      6. Hinge axis maximum height 3961 mm 6. Hinge axis maximum height 4620 mm
      8. Radius at maximum lifting and unloading 1141 mm 8. Radius at maximum lifting and unloading 1490 mm

      Shovel

      7. Unloading ground clearance at maximum lifting 2877 mm 7. Unloading ground clearance at maximum lifting 3320 mm