Test Items:
1. Displacement Test: To measure the no-load pressure and
discharge.
2. Volume Efficiency Test: To determine the volume efficiency under
rated operating conditions.
3. Power Test: Include start power, rated power and overload power.
4. Overload Test: The maximum displacement of the hydraulic pump or
motor (at high speed), nominal speed, 110% of the rated pressure or
the maximum pressure for running for 1 minute or less.
5. Torque Test: Comprise input torque of the hydraulic pump and
shaft end torque of the hydraulic motor (reverse test)
6. External Leakage Test: During the aforesaid tests, inspect the
leakage of the sealing parts.
7. Auxiliary Tests for Hydraulic Valves and Hydraulic Cylinders,
etc.
IV. Function and Parameters of the Test Bench
1. Drive Mode: Driven by motor, with power of 110kW + 22kW + 22kW +
0.75kW
2. Speed Mode: Frequency control within the range of 0 - 3000
r/min.
3. Loading Mode: Computer proportional relief valve for two-way
loading up to 40 MPa. Capable of testing duplex pumps.
4. Maximum Flow Rate: ≤ 500 L/min. The maximum flow rate of the
low-pressure auxiliary system ≤ 330 L/min
5. Maximum Pressure of the Auxiliary System: 35 MPa
6. Maximum Flow Rate of the High-Pressure Auxiliary System 34
L/min, Maximum Pressure of the Auxiliary System: 31.5 MPa
7. Temperature Range for the Test Bench: 0 - 60℃
8. Medium Temperature with Natural Cooling.
9. Power Requirements: AC380V 300A
10. Sensors and Control Power Supply: DC24V
11. The computer automatically generates test reports, curves and
data acquisition.
