Construction Machinery: Loader-Digger Caterpillar

Model Type of pump Overflow valve pressure Pump bandwidth
450E variable flow, axial-piston, output gear 26200 kPa - 3800 lb / sq. inch 194 l/min - 51.3 gal/min
446B load sensing, pressure control, with locking in the middle position 22400 kPa - 3248.8 lb / sq. inch 178 l/min - 47 gal/min
446 Variable flow 19994.8 kPa - 2900 lb / sq. inch 162 l/min - 42.8 gal/min
444E variable displacement axial piston pump 1716.8 kPa - 249 lb / sq. inch 156 l/min - 41.2 gal/min
442E variable displacement axial piston pump 1716.8 kPa - 249 lb / sq. inch 156 l/min - 41.2 gal/min
442D load sensing, pressure control, with locking in the middle position 22800 kPa - 3306.9 lb / sq. inch 163 l/min - 43.1 gal/min
438D load sensing, pressure control, with locking in the middle position 22800 kPa - 3306.9 lb / sq. inch 163 l/min - 43.1 gal/min
438C piston pump 20684.3 kPa - 3000 lb / sq. inch 162 l/min - 42.8 gal/min
438 serie II 18600 kPa - 2697.7 lb / sq. inch 138 l/min - 36.5 gal/min
436C 163 l/min - 43.1 gal/min
436 serie II 18615.8 kPa - 2700 lb / sq. inch 138 l/min - 36.5 gal/min
434E variable displacement axial piston pump 1716.8 kPa - 249 lb / sq. inch 156 l/min - 41.2 gal/min
432E variable displacement axial piston pump 1716.8 kPa - 249 lb / sq. inch 156 l/min - 41.2 gal/min
432D load sensing, pressure control, with locking in the middle position 22800 kPa - 3306.9 lb / sq. inch 163 l/min - 43.1 gal/min
430E variable displacement axial piston pump 24898 kPa - 3611 lb / sq. inch 163 l/min - 43 gal/min
430D IT load sensing, pressure control, with locking in the middle position 22754 kPa - 3300.2 lb / sq. inch 163 l/min - 43.1 gal/min
430D load sensing, pressure control, with locking in the middle position 22754 kPa - 3300.2 lb / sq. inch 163 l/min - 43.1 gal/min
428E variable displacement axial piston pump 1565.1 kPa - 227 lb / sq. inch 125 l/min - 33 gal/min
428D load sensing, pressure control, with locking in the middle position 22800 kPa - 3306.9 lb / sq. inch 163 l/min - 43.1 gal/min
428C piston pump 20700 kPa - 3002.3 lb / sq. inch 163 l/min - 43.1 gal/min
428 serie II 18615.8 kPa - 2700 lb / sq. inch 108 l/min - 28.5 gal/min
426C 163 l/min - 43.1 gal/min
426 serie II alternating 18600 kPa - 2700 lb / sq. inch 138 l/min - 36.5 gal/min
424D load sensing, pressure control, with locking in the middle position 20700 kPa - 3002.3 lb / sq. inch 139 l/min - 36.7 gal/min
422E variable displacement axial piston pump 1565.1 kPa - 227 lb / sq. inch 125 l/min - 33 gal/min
420EIT variable displacement axial piston pump 24898 kPa - 3611 lb / sq. inch 163 l/min - 43 gal/min
420E variable displacement axial piston pump 24898 kPa - 3611 lb / sq. inch 163 l/min - 43 gal/min
420D IT load sensing, pressure control, with locking in the middle position 22754 kPa - 3300.2 lb / sq. inch 163 l/min - 43.1 gal/min
420D load sensing, pressure control, with locking in the middle position 22754 kPa - 3300.2 lb / sq. inch 163 l/min - 43.1 gal/min
416F Variable flow, axial piston 131.7 l/min - 34.8 gal/min
416E variable displacement axial piston pump 22700 kPa - 3292 lb / sq. inch 132 l/min - 34.8 gal/min
416D load sensing, pressure control, with locking in the middle position 20700 kPa - 3002.3 lb / sq. inch 139 l/min - 36.7 gal/min
416C 163 l/min - 43.1 gal/min
416 serie II Variable flow 18615.8 kPa - 2700 lb / sq. inch 108 l/min - 28.5 gal/min