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Woodward 9904-007
Product Name: Woodward 9904-007 TM-55 6/9 V-DC Proportional Actuator
Product Introduction: The Woodward 9904-007 is an electro-hydraulic proportional actuator that uses an electrical signal (4–20 mA or 6/9 V-DC) to precisely control hydraulic output, achieving linear displacement or rotary control. It is built for high-precision, fast-response industrial applications and is fully compatible with Woodward analog and digital controllers such as the 2301 and 505 series.
Detailed content
Technical Specifications:
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Input Voltage: 6 V-DC or 9 V-DC (selectable)
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Output Shaft: 0.750 in diameter, 48-tooth serrated, 0.875 in long
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Ambient Temperature Range: –40 °C to +121 °C (–40 °F to +250 °F)
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Maximum Torque: 38 N·m at 400 psi; 95 N·m at 1000 psi
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Maximum Angular Travel: 45° clockwise (viewed from shaft end)
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Standard Calibration: 20 ± 0.5 mA at 0°; 200 ± 0.5 mA at 45°
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Maximum Transient Current: 350 mA
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Protection Rating: UL, CSA Class 1, Division 1, Groups C & D; CENELEC Zone 1 Group IIC; ATEX CE certified
Structural & Material Features:
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Lightweight aluminum alloy housing with corrosion resistance
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Internal hardened stainless steel components for wear resistance and longevity
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Viton A elastomer O-rings and PTFE seals to prevent hydraulic oil leakage
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Optional dual-coil torque motor for redundancy
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Optional position feedback sensor for real-time position monitoring
Application Scenarios: Speed and load control for diesel engines, natural gas engines, gasoline engines, and industrial turbines.
