Hydraulic Gear Pump, GPC4 Series

Hydraulic System, High pressure pump, Hydraulic Pump for Vehicle, Hydraulic Pump for Excavator

GPC4 series high-pressure hydraulic gear pump is designed with the technique introduced from Vickers and has been modified in its inner structure by Changjiang Hydraulic. With high-strength Aluminum extruded shell, DU bearings of large bearing capacity, and floating side panel structure, GPC4 hydraulic pump is known for high pressure, large rotating speed, simple structure, easy maintenance, reliable performance, and long service life.

In addition to independent use, multi-connection form is also available for GPC4 to meet the requirements of machine’s main unit.

Applications
hydraulic drive system for engineering machinery, mining engineering, crane machinery, etc.

Advantages
GPC4 series hydraulic gear pump is an application of the advanced Vickers technique. The pump body is extruded and formed as a piece. Operators can apply 4 pumps at the same time in serial. Besides, we are now planning to design a monoblock structure type pump to match the current market, as well as to solve the oil leakage between the valve surfaces and improve the volume efficiency to 94%.

Model Description of GP C 4 a- 63- 50-32-20- D 8 R
Model Meaning
GP gear pump
C serial code
4 group
a metric system (inch system omitted)
63 displacement for single or shaft end pump (ml/r): 120, 25, 32, 40, 50, 63, 80
50-32-20 displacement of second, third, forth pump (multiple pumps only) (ml/r): 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 140, 150, 160, 170, 180, 190, 200
D mounting flanges: B -B flange rabbet 101.6 dia. (inch system) C -C flange rabbet 127 dia. (inch system) A -A flange rabbet 100 dia. (metric system) D -D flange rabbet 125 dia. (metric system)
8 Shafts: 1- straight keyed with inch system 2- straight keyed with inch system 6- involute spline with inch system 7- involute spline with inch system 3- straight keyed with metric system 4- straight keyed with metric system 5- involute spline with metric system 8- involute spline with metric system
R rotation: L- counterclockwise R- clockwise
Technical Parameters
Model Theoretical displacement (ml/r) Rated pressure (mpa) Speed (r/min) Volumetric efficiency (%) Input power (kw) Weight (kg)
rated max min
GPC4-20 21 25 2000 3300 900 ≥90 32.1 8.8
GPC4-25 26.2 25 2000 3300 900 40 9.1
GPC4-32 32.8 25 2000 3150 900 47.8 9.4
GPC4-40 42 25 2000 3000 900 58.3 9.8
GPC4-50 52.5 23 2000 2700 800 60.4 10.2
GPC4-63 65.6 20 2000 2500 700 60.7 10.7
GPC4-80 80 20 2000 2500 700 74.1 11.5
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