Servo-hydraulic actuator test system
XSA SERIES · SERVO HYDRAULIC ACTUATORS

Low- & High-Frequency
Servo-Hydraulic Actuators

Application-engineered for structural loading, fatigue testing, vibration simulation and high-performance motion control, with force, stroke, speed, frequency, feedback, valve and mounting selected as one system.

View Selection MatrixDownload Selection Guide
PRODUCT FAMILIES

Two product families for different dynamic duties

Frequency must be defined together with amplitude, load, moving mass, valve, hydraulic supply and control error.

XSA-LF Low-Frequency Series

Static, quasi-static, low-frequency cyclic and long-stroke loading for higher force and endurance duties.

Below 20 Hz10-1000 kN50-500 mmSingle / double rod

XSA-HF High-Frequency Series

High-cycle fatigue, modal excitation, vibration simulation and high-speed motion reproduction with low-friction double rods, close-coupled valves and high-response feedback.

20–100 Hz project design5-250 kN10-150 mmLow-friction / hydrostatic bearing
SELECTION ENTRY

Project Selection Entry

5-1000 kNCombined force range
10-500 mmTotal stroke range
21 / 28 MPaTypical supply pressure
Force / position loopProject feedback and valve control
SeriesConfigurationForce kNTotal stroke mmTypical duty
LFXSA-LF10/25/5010/25/5050-250Component fatigue, light structures, automotive parts
LFXSA-LF100/250100/250100-500Axles, suspension, heavy structures
LFXSA-LF500/1000500/1000100-500Large structures and high-load tests
HFXSA-HF05/10/255/10/2510-100Materials, bushings, joints and structural fatigue
HFXSA-HF50/100/25050/100/25020-150Automotive parts, aerospace structures and high-load fatigue
SYSTEM ARCHITECTURE

The actuator is one part of a closed-loop loading system

XSA servo actuator system architecture
Actuator, valve control, measurement, hydraulic power and real-time control determine system performance.
XSA-HF project selection matrix
HF force, stroke and structural configuration matrix; see the selection guide for full boundaries.

Structure & Mounting

Single rod, double rod, low-friction or hydrostatic support; flange, spherical bearing, clevis, base and trunnion mounting.

Feedback & Valve Control

Integrated position feedback, fatigue-rated load cells, dual-chamber pressure measurement and single, dual or three-stage servo valves.

RFQ Inputs

Provide force, stroke, waveform, frequency, moving mass, supply conditions, mounting, cycle count and allowable error.

PROJECT PATH

From duty definition to acceptance

01Duty DefinitionForce, stroke, waveform, frequency and moving mass
02Kinematic SizingVelocity, acceleration, flow and hydraulic power
03System ConfigurationStructure, valves, sensors, supply and controls
04Manufacturing & IntegrationMachining, assembly, cleaning and interface checks
05Project AcceptanceVerification against the project specification

Download the XSA V1.5 Selection Guide

Includes selection matrices, calculation relationships, interface options, fluid requirements, model codes and customer input sheets.

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