A nozzle flapper-type hydraulic servo valve that can be widely used from machine tools to testing equipment.
This is a nozzle-flapper type hydraulic servo valve manufactured by the UK-based STAR Hydraulics, which has a proven track record in Europe. The ST-550 series can be widely used in various applications, from machine tools to testing machines. Unlike direct-acting servo valves, it operates with a low power consumption of less than 0.2A, and flow rates of 2 to 75L/min (△7MPa) can be selected. If high-speed operation is required, a high-speed response type can also be chosen. It can be used in many industrial fields, from machine tools like hydraulic presses to various testing machines such as material testing equipment. Our company also handles servo amplifiers and signal converters that drive the servo valves, and we can assist with inquiries regarding hydraulic servo mini-systems, including servo cylinders and controllers. Please feel free to consult us about any issues you may have with existing hydraulic servo valve systems.
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basic information
Rated flow (standard): 2, 4, 10, 20, 40, 60, 75 L/min (±10%, △Pv=7MPa) Rated flow (high response): 4, 10, 20, 40 (±10%, △Pv=7MPa) Seal material (optional): NBR (EPDM, FPM=FKM) Maximum operating pressure: 31.5 MPa (EPDM: 28) Return side pressure resistance: 31.5 MPa (EPDM: 21) Operating oil: General mineral oil; for others, please inquire Vibration resistance (3 axes, 5–2000Hz): 30g Waterproof and dustproof: EN60529 IP65 Rated current (when single-wired): ±8, ±15, ±30, ±40, ±100, ±200mA Step response: 0⇔100% Standard (rated flow up to 40L/min): 8msec High response (rated flow up to 20L/min): 4.5msec Operating temperature range: -20 to +80 °C (FPM: -30 to +135) Port pattern: ISO 10372-04-04-0-92 without X port Size: 80x88.8x72.1mm (excluding protrusions) Weight: 1.1kg
Price information
The price varies based on quantity, high-response models, special specifications, etc. Please contact us.
Price range
P3
Delivery Time
※Standard delivery time: 2.5 months. Delivery times may vary depending on quantity and timing. Please contact us.
Applications/Examples of results
Hydraulic press (our delivery record) Honing machine Hydraulic material testing machine Hydraulic load testing machine Hydraulic 6-axis motion base Other general hydraulic control devices
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Company information
A workshop skilled in servo control. ○ In hydraulic servo control, we design and manufacture control devices, create control software, and collaborate with partner companies to design and produce optimal hydraulic units and hydraulic cylinders. We also select components such as hydraulic servo valves. ○ High-speed movement and high-precision positioning using ultrasonic motors. ○ Utilization in robots and unmanned transport vehicles with drivers for servo motors. ○ Controllers and control devices for construction machinery developed through contract development. ○ Creating moving objects such as hydraulic robots and designing and manufacturing 2-axis or 6-axis motion bases through industry-academia collaboration.