When the piston torque wrench calibration tool work, and generally is in the 10-32MPa State, and pressure flow is high pressure (32-70MPa) flow rate 2.2 times, integrated
three-level pressure and flow curves, three-stage flow speed is the secondary flow of the pump pump nearly twice times.Three-level torque wrench calibrators pumping speed is much faster than the secondary pump.
Electro-hydraulic wrench consists
of brushless motor and pump motor carbon brush motors.Brushless motors are usually induction motors, need a capacitor.In order to pump to start with pressure, need to install the start capacitor running capacitor.Brush motor
is series motors, high speed, can provide a larger pump flow, but more noise and vibration.
Brushless motors are often used for tens of thousands of hours, brush motor life and hundreds of more than more than 1000 hours of continuous operation, reach the limit you need to replace the carbon brushes, or is likely to cause bearing wear.
Brushless motors are often used for tens of thousands of hours, brush motor life and hundreds of more than more than 1000 hours of continuous operation, reach the limit you need to replace the carbon brushes, or is likely to cause bearing wear.
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