D634-546A
Brand: MOOG
Model: D634-546A
Series: D634
Structure: Pilotless single-stage direct drive servo valve
Mounting Standard: ISO4401-05 (NG10)
Drive Mode: Permanent magnet linear force motor
Feedback: Integrated LVDT spool position closed-loop feedback
Power Supply: 24VDC, 18-32VDC, max 2.5A
Control Signal: ±10V, ±10mA, 4-20mA
Protection Class: IP65
Weight: 6.3-7.2kg
Description
Detailed Specifications
Hydraulic Parameters
Max working pressure: 350barMax T-port pressure: ≤50bar, 350bar available with Y portRated flow at 35bar pressure drop: 100L/minPeak flow: 180-185L/minNull leakage: 2.5-7L/minWorking fluid: ISO11158 mineral hydraulic oilFluid temperature: -20℃ ~ 80℃
Electrical Parameters
Max operating current: 2.5AConnector type: 6-core plus PE terminal
Dynamic Performance
Full stroke step response: ≤20ms-3dB bandwidth: 20-35HzHysteresis: ＜0.25% full scaleResolution: ＜0.10% full scaleTemperature drift: ＜1.5% full scale
Structure & Working Principle
Adopt pilotless design without auxiliary oil supply, simplifying pipeline and reducing leakage.Permanent magnet linear force motor directly drives the spool, stable performance independent of system pressure change.Built-in LVDT sensor realizes real-time position feedback, ensuring high control accuracy and repeatability.Spring centering mechanism returns spool to neutral position automatically for power-off safety protection.
Main Features
High pressure and flow capacity suitable for heavy-duty hydraulic systems.Fast response and outstanding control precision.High reliability, strong pollution resistance and low maintenance cost.Universal ISO standard installation, easy replacement and assembly.
Application Fields
Large hydraulic press and forging equipmentHeavy injection molding and die casting machineryMulti-axis vibration and fatigue test benchesMetallurgical and industrial heavy hydraulic control systemHigh precision automatic closed-loop control equipment
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