Wenzhou Prance Hydraulic Equipment Co., Ltd
Motor Torque Ratings: Continuous, Intermittent, and Peak Duty
Compare continuous, intermittent, and peak motor torque using the actual load cycle, duration, speed, pressure, and shaft configuration.
Blogue
Hydraulic Pump Flow-Meter Installation: Range, Pressure Drop, and Load
Choose and install a hydraulic pump flow meter without confusing range, pressure drop, branch flow, or temperature effects with pump condition.
Hydraulic Spool Metering Notches: How Geometry Shapes Low-Flow Control
Explain hydraulic valve spool metering notches, opening area, flow gain and low-flow behavior without confusing notch shape with spool overlap or feedback.
Trapped Oil in Hydraulic Motor Lines: Thermal Pressure After Shutdown
Understand thermal pressure in oil trapped around a stopped hydraulic motor, why pump shutdown does not remove stored energy, and how to review protection.
Pump Pressure Ratings: Continuous, Intermittent, and Peak Limits
Compare continuous, intermittent and peak hydraulic pump pressure ratings, load duration, relief overshoot and the evidence needed for a reliable pump selection.
Hydraulic Motor Heat Loss: Estimating the Cooling Load from Efficiency
Estimate hydraulic motor heat loss from pressure, flow and shaft power. Weight real duty points and separate motor losses from total system cooling demand.
Long Hoses in Hydraulic Motor Drives: Compliance and Response Lag
Explain long-hose hydraulic motor response lag using trapped volume, compliance and pressure rise. Separate elastic storage from restriction and control delay.
Hydraulic Motor Dry Running: Lubrication Loss and Inspection Priorities
Understand hydraulic motor dry-running damage, lubrication loss, safe isolation, contamination checks and documented restart decisions without risky test runs.
Proportional Valve PWM Frequency: Switching Frequency vs Dither
Distinguish proportional valve PWM switching from dither and input commands. Check driver compatibility, current control, temperature and documented settings.
Reading Hydraulic Motor Torque–Speed Curves: Find a Sustainable Duty Point
Read hydraulic motor torque-speed curves using test conditions, duty points, efficiency and continuous, intermittent or peak limits without combining maxima.
Hydraulic Brush-Cutter Motor Selection: Blade Inertia, Speed, and Coast-Down
Select a hydraulic brush-cutter motor by working flow, speed, torque, rotor inertia, shaft loads and stopping duty. Separate calculations from approval.
Proportional Valve Current vs Voltage Control: Specify the Command Correctly
Separate proportional valve supply voltage, input command and regulated coil current. Specify amplifier compatibility, scaling, signal roles and fault behavior.