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D

YNEX

ENGINEERINGSPECIFICATIONS

High Pressure Hydraulics

Electro-hydraulic

SA SERIES

Remote Proportional Actuators

1200 lbs (5,33 kN) Output Force

A Remote Proportional Actuator (RPA)produces output rod displacementproportional to an electrical inputsignal. The RPA can be used to remotely control variable displacement pumpsand motors. It can also stroke spoolsof large valves, throttle controls, clutches or brakes. COMPACT DIRECT MOUNTING The actuator is ideal where machinesize or component location make itimpossible to operate a componentdirectly.Compact size and direct mountingmakes it easy to convert existingcomponents for remote electro-hydraulic control. ACCURATE REMOTE CONTROL The RPA provides accurate controlwithout additional electronic feedback. Movement of the rod is proportional tothe electrical signal, with themaximum force determined by the supply pressure. ELECTRICAL DATA Complex tasks can be performed with high speed and accuracy, using posi- tion sensors or microprocessor input.These actuators feature MechanicalPosition Feedback . This patenteddesign monitors and controls the position of the output rod.
Item Specifications Rated Voltage±12 VDC SPECIFICATIONS
Full Stroke Voltage±9 VDC Maximum Stroke Options Extend or retract 0.5 inch (12,7 mm),with change in polarity;Extend 1.0 inch (25,4 mm) or retract1.0 inch (25,4 mm), with currentincrease.
Rated Input Current±490 ma Resistance24,5 Ohms Wattage5,9 Watts Inductance at 1,0 KHz±60 MH Supply Pressure Minimum, 200 psi (15 bar); Maximum, 3000 psi (210 bar)
Recommended Dither ±2 V, 80 Hz Square Wave Pulse Width Modulation Frequency 100 to 120 Hz Output Force 60 lb (0,27 kN) at 200 psi (15 bar)supply pressure;1200 lb (5,33 kN) at 3000 psi (210 bar) supply pressure.
Dither not required except as noted: Actuators with 1.0 inch (25,4 mm) stroke when operated with a supply pressure below 1000 psi (70 bar), and all “High Response” models must have a dither signal superimposed on the input signal or be driven with a pulse-width modulated signal. Required Flow Seals 50 in
3 (820 cm
3 ) per minute at 200 psi(15 bar). See performance curves onpage 3. Fluorocarbon (Viton
® or Fluorel
® )seals standard. Contact the Dynexsales department for information on other seals. Maximum Return Pressure 10% of supply pressure.