NINGBO AUKOR ELECTRO-HYDRAULIC TECHNOLOGY CO.,LTD

Model: H10 Series Voice Coil Motor Driven High-Speed Servo Valve Product Features: • Replaces Santest DA Series • High-Speed Response: High-speed response refers to the valve's dynamic characteristics, including step response and frequency response; • Step Response: Up to 1.2ms (0~100% command signal); • Frequency Response: ±25% command signal -3dB frequency up to 750Hz, -90° frequency up to 540Hz; • High Safety: In case of emergency power failure, the valve core will return to the predetermined position under the action of the spring; • High Contamination Resistance: Can meet hydraulic cleanliness standards NAS 1638 Class 8/ISO 4406-1999 19/16. Working Principle: The H-series high-speed servo valve is driven by a voice coil motor, using double-layer magnetic array technology to enhance the magnetic field. A series differential coil is embedded within the double-layer magnetic field annulus. The valve core is fixed to the end of the coil, allowing free movement within the valve sleeve. When current flows through the coil in the magnetic field, the coil generates a strong thrust, causing the valve core to move axially. Product Dimensions: 199.7x70x136.6mm Mounting Interface Standard: ISO 4401-05-05-0-5 Vibration Resistance: 20g (Discrete Amplifier Type) Ambient Temperature: -40…+80℃ Weight: 9000g Drive: Voice Coil Motor Contamination Resistance: NAS 8 Maximum Operating Pressure: 350Bar Operating Pressure Range: Ports P, A, and B, <350Bar. Port T (without Y): 50 bar. Port Y: ≤ 0.5 bar Rated Current: 15-40mA Coil Resistance: 80-200Ω Hysteresis: <1% Resolution: <0.3% Linearity: <7.5% Symmetry: <10% Pressure Gain: >30% Zero Deviation: <1% Overlap: <2.5% Oil Supply Pressure Zero Drift (80%～110%) Ps: <2% Return oil pressure zero drift (0～20%) Ps: <2% Temperature zero drift (-30～+150℃): <4% Step response (100% signal): <3% Frequency response (±25% signal): >500Hz Insulation resistance: >50MΩ Hydraulic oil: DIN52524-Part 1 ...Part 3 / ISO11158 Recommended viscosity: 15-100cSt Permissible viscosity: 5-400cSt Rated flow rate: 10L/min, 20L/min, 40L/min, 60L/min, 80L/min Maximum flow rate: 120L/min Internal leakage @210bar: <2%QN Cleanliness level recommended by ISO 4406 for functional safety: 18 / 15 / 12 Recommended cleanliness level conforms to ISO 4406 standard for longer service life: 17 / 14 / 11 Command signal: +/- 10V, +/- 10mA, 4...20mA