MTS DuraGlide® Hydraulic Actuators
Engineered for performance, longevity and efficiency

A P P LY I N G UN M ATCHED EN GI NE E RING AND T E ST T E CHNOLOGYE X P E RTI SE, MTS O FFERS A COMP LE T E FAMILY OF HIGHLY RE LIABLE ,D U R A BLE AN D EN ERG Y-EFFI C IE NT HYDRAUL IC ACTUATORS,D E S I GN ED SPECI FI CALLY TO ME E T T E ST ING DE MANDS.

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High-performance, fatigue-rated actuators optimized for testing

Servoactuator performance can have a dramatic influence on the accuracy of your test
data and the repeatability of your testing. That is why more test professionals insist onrunning their tests with MTS DuraGlide Hydraulic Actuators.
Every day around the world, test engineers use MTS linear and rotary actuators to address
their most demanding material, structural fatigue and component testing requirements.
These actuators enable them to measure everything from high-dynamic time histories
to pseudo-static creep of highly brittle materials, and are capable of managing thesmallest or most massive forces.
MTS actuators are optimized to meet the unique precision and dependability
requirements of testing. Our engineers use proprietary materials and processes tominimize friction, helping to maximize reliability, wear resistance and energy efficiency.
All MTS actuators are fatigue-rated for years of dependable operation, even in themost demanding applications, and feature fault-tolerant designs to sustain high levelsof reliability and uptime over the long term.
Test professionals also depend on MTS to help them integrate safe, quiet, reliable
and energy-efficient hydraulic distribution systems, based on their unique needs andfacilities configuration.

Performance

A disciplined combination of extensive
engineering, top-quality parts andmeticulous manufacturing makes it
possible for MTS to deliver unmatched
actuator performance. Our actuatorsdeliver exceptional fidelity over the fullrange of motion, along with a superior
ability to apply and reconcile multiaxialforces. You can rely upon these built-tolast, fault-tolerant designs to perform, test
after test and year after year.
Reliability

All MTS hydraulic actuators feature
fatigue-rated designs, which means thatthey are built to exceed their rated loads
for millions of cycles. Put another way,
structural failure has essentially been
engineered out of the picture. You can be
confident in superior actuator performanceover a long functional life, maximizing
your uptime and minimizing your cost ofownership. Proactive remanufacturing
programs and fluid care options help tofurther extend actuator longevity.
Energy Efficiency

MTS actuators are engineered to provide
maximum performance while introducing
the minimal amount of friction into thetest system, reducing internal flow lossesand heat produced, thus requiring lessenergy to operate. Minimizing drain flow
eliminates the need to use scavenge pumps
that negatively aerate oil, further reducing
the required energy budget.
When you partner with MTS, you tap intoa deep reservoir of system integration
expertise that can help create the mostefficient overall system design possible.
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Why all actuators are not created equal

There are many hydraulic actuators in the market, but there arevery few that are designed for delivering fidelity in force and motion.
Many test labs managers are pressured to use a lower quality
actuator to save costs. This compromise of quality to gain a lower
acquisition cost is often far more expensive in the long term. Whenusing actuators not specifically designed for testing applications,problems manifest quickly in higher operating costs, lower attainable
top frequencies due to distortion, less fault-tolerance to side-loading
and buckling, more leaking due to the number of cycles required
for fatigue testing and ultimately a much lower overall life expectancy,
requiring additional replacement costs. With an MTS hydraulicactuator, you will easily recover any differences in acquisition costthrough increased reliability, uptime and energy savings.

Difference in the Details

Advanced design characteristics make MTS hydraulicactuators the preferred choice for dynamic force
generation around the world.
MTS SureCoat® Rod Finishing Technology* increases
rod service life by 10x over hard chrome-plated rods.
A piston rod end with replaceable, hardened-steel insert
allows you to quickly replace damaged threads and switch between
metric and US customary components.
An integral bonded bearing design bonds high-capacity polymer
piston rod bearings directly to the end cap, providing high side load
tolerance and excellent resistance to galling and seizure. Optionalhydrostatic pressure-centering bearings can support continuous
high-speed operation under heavy side loads.
A one-piece, double-ended piston rod design eliminatescompromises caused by unequal tension and compression piston
areas. MTS thermal spray-coated rods* increase rod service life
by 10x over conventional hard chrome-plated rods.
Large ports accept servovalve flow rates up to 340 lpm (90 gpm),and a variety of servovalve mounting options let you configure
precisely the performance level you want.
A reinforced PTFE piston seal provides a positive seal andreduces friction.
Upper and lower hydraulic cushions safeguard the actuator from
accidental high-velocity impacts between the piston rod and end cap.
Proprietary MTS rod seals provide long life, low friction andexceptional performance in high-frequency, low-displacement
applications.
*Standard on 244G2 actuators; optional on 201G2 actuators.

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Find the ideal actuator for your needsChoose from a broad selection of fatigue-rated MTS hydraulic actuators to support
your mechanical testing requirements. Our offering ranges from Series 244 Actuators
for precise control of high-frequency motions and forces, to the Series 201 Actuatorthat provides an economical solution for static or low-frequency testing, to heavy-duty
MTS rotary actuators that deliver reliable torque generation.
Force capacity(Varies by model)

MTS Actuator

Ideal for:

Piston design

Features & Benefits

Series 244» Dynamic component fatigue testing» Structural fatigue testing» Vehicle durability testing

Double-ended

15 kN – 1000 kN(3.3 kip – 220 kip)

» Superior reliability and versatility for dynamic
force generation» MTS SureCoat Rod Finishing Technology for 10x longer life
than hard chrome-plated rods
» Standard options for Temposonics® linear transducers or
traditional/conventional LVDTs» Proprietary MTS seal and bearing designs for superior
performance and long life
» MTS-exclusive direct-bonded polymer bearings reduce
friction and heat
» Hydraulic cushions protect end cap

Series 201» Aerospace structural testing» Large-force, seismic test systems thatrequire long stroke at lower velocities

Single-endedTension
32 kN – 1775 kN(7.0 kip – 400 kip)Compression
63 kN – 2595 kN(14.0 kip – 590 kip)

» Economical solution for superior closed-loop,
servo-controlled performance» Fatigue-rated tie rods, bolted connections and polymer
bearings improve reliability and wear-resistance» Low-friction seals comprise only 1% of rated load for energyefficient operation» Standard options for hydraulic cushions» Optional MTS SureCoat Rod Finishing Technology
for longer lifeSeries 242» Component fatigue testing» Structural resonance searching» Modal analysis

Double-ended

2.7 kN – 14.7 kN(0.6 kip – 3.3 kip)

» Compatible with a broad range of MTS servovalves» Nonmetallic bearings provide high side-loading
capabilities and eliminate bearing-to-rod galling failures» Low-pressure piston rod seals ensure low-friction
operation and minimize fluid leakage

Series 248» Vehicle vibrational analysis on
the MTS Model 320 Tire-Coupled TestSystem» High-frequency elastomer testing

Double-ended

10 kN – 250 kN(2.2 kip – 55.0 kip)

» Hydrostatic pressure-centering bearings support continuous
high-speed operation under heavy side loads» Large-diameter single-piece chrome-plated piston rod
provides excellent strength and lateral stiffness.
» Hydraulic cushions protect end cap during full-stroke,high-frequency operation

Series 215(rotary)» Testing materials, axles, couplings,
driveshafts, and other components
involving rotational movement

Dynamic torque ratings from
226 N-m – 11,300 N-m(2000 lbf-in – 100,000 lbf-in)» Reliable, heavy-duty torque generation in a closed-loop
servohydraulic testing environment» Heavy-duty roller bearings withstand high radial loads
and facilitate low friction and long life
» Precision-machined, non-metallic coated roller design
reduces friction and eliminates backlash» Equal working area for clockwise and counter-clockwise
rotation provides balanced control

Series 216(rotary)» Testing materials, axles, couplings,
driveshafts, and other components
involving rotational movement» Provides more torque than the Series
215 rotary actuators,
while maintaining incredible
control fidelity

Dynamic torque ratings from
22,597 N-m – 82,479 N-m(200,000 lbf-in – 730,000 lbf-in)» Reliable, heavy-duty, high-torque generation in a closed-loop
servohydraulic testing environment» Heavy-duty bearings and double-vane rotor design
accommodate significant radial and axial loads» Precision chamber and rotor design ensures zero actuator
backlash during torque reversals» Equal working area for clockwise and counter-clockwise
rotation provides balanced control

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Keys to faster fatigue testing

Low Distortion Actuator Assemblies

In a closed loop testing system, you can only run as fast as your weakest link, or in thiscase, as fast as your most distorted actuator. Low distortion actuator assemblies let you
run tests faster.
Common Issues – Signal Distortion & Noise

Distortion or noise in the data causes errors
in the resulting mathematical calculations.
Even a small amount of distortion cancause large calculation errors and increased
uncertainty of results. Distortion is typically
non-repeatable and therefore it is difficult
to apply a data correction.
MTS actuators are designed to minimize
distortion, and MTS provides solutions formany of the common causes of distortion.
Software Innovations

Recent software innovations have enabledhuge improvements in structural testing
speed. First, there’s Forward Loop
Optimization, or FLO, which applies
algorithms that automatically condition
valve commands before they are sent tothe servovalve. When used correctly, it

6can make a channel appear more stable.
Next, there’s Profile Segment Optimization(PSO), which automatically adjusts thetransition time as a test runs to make thetransition as fast as possible, while still
staying within user-defined error limits.
And now we get to the game changer. MTS
has developed a method that compensates
for the cross-coupling of actuators throughthe test article. This feature, referred to as
Cross-Coupling Compensation (CCC),
fully compensates for the influences of all
actuators present without compromising
accuracy or introducing additional strains
on test articles.
CCC eliminates the need to input crosscoupling information manually and allows
the use of unit load cases to provide
automated coefficient generation. Our
customers have reported improving theirtest speeds by up to four times afteremploying CCC.

Distortion Cause

MTS Solution

Backlash in bearings, system and specimen resonances

Swivels and spiral washers designed to minimize backlash

Incorrectly mounted transducers

Fully integrated standard options for Temposonics linear transducers or traditional/conventional LVDTs

Incorrectly grounded conditioners

Hydraulic distribution system consulting

Incorrect shielding of cables

Hydraulic distribution system consulting

Electrical noise in the laboratory

Hydraulic distribution system consulting

Stiction of the actuator

Integral bonded bearing design, reinforced PTFE piston seal, proprietary MTS piston rod seals

Instability in the system

Software innovations such as Forward Loop Optimization, Profile Segment Optimization andCross-Coupling Compensation

Durable Components

Choose from a full assortment of complementary products and components for use
with your MTS hydraulic actuators. All these options are engineered to improve thequality and repeatability of your test results.

LINEAR VARIABLE DIFFERENTIAL TRANSFORMERSSERVOVALVESFROM THE LEADING GLOBAL PROVIDER OF

MTS 244G2 actuators come with standard
LVDTs. Manufactured to strict MTS
specifications, these LVDTs produce ananalog signal with excellent linearity.

Precision-engineered MTS servovalvesdeliver high-flow, quick-response andlow-distortion performance to uphold thefidelity of your test data.

TESTING SOLUTIONS, SERVICE AND SUPPORTTEMPOSONICS ® LINEAR SENSORSPEDESTAL BASE ACTUATOR

These sensors use the time-basedmagnetostrictive position sensing
principle developed by MTS and areoffered as a standard option. Non-contact
sensing reduces wear and increases
durability and output repeatability.
Temposonics displacement achieves
ASTM E2309 Class A performanceaccuracy.

Although most applications profit from atleast a small degree of pivotal freedom,others require rigid actuator fixturing.
Pedestal bases are available for all actuatormodels to handle these situations. Vibration
testing, seismic tables, and horizontal
cantilever installations are common
applications for pedestal bases. Check
with your sales representative for help indetermining the effect of sideloading on
pedestal base installations.

FORCE TRANSDUCERS

Highly accurate MTS force transducers
feature a low-profile design for easy
system integration.
MOUNTING ACCESSORIES

Choose from a variety of mounting
methods, including pedestal, clevis
and swivel.
SWIVEL ROD ENDS

This spherical bearing features a patented
adjustable preload mechanism to minimizebacklash.
SPIRAL WASHERS

These accessories create a backlash-free
assembly by fully preloading theconnections between actuator, mounting
and force transducer.

CLOSE-COUPLED ACCUMULATORS

Accumulators provide the stored energy
required to meet peak flow demand in atimely manner.
HYDRAULIC SERVICE MANIFOLDS (HSMs)

MTS HSMs reliably control the distributionof hydraulic flow to test stations.

MTS is recognized worldwide for helping
people build confidence in the performanceof their products. Our high-performance
hydraulic actuators play a central rolein helping test professionals achieve thehighest levels of certainty.
We also field one of the largest, mostexperienced global service, support andconsulting staff of any testing solution
provider. Our complete lifecycle
management services portfolio can help
you maximize your productivity anduptime, while getting the longest functional
life possible from your MTS investments.
Since our company’s very beginning, wehave also been deeply involved in theengineering, fabrication and installationof hydraulic distribution systems forcustomers worldwide. We can apply
sound engineering practices at all stagesof design and integration, to provide youwith the optimal hydraulic distribution
system for your test lab.

HYDRAULIC POWER UNITS (HPUs)

MTS SilentFlo™ HPUs provide clean,quiet and energy-efficient hydraulicpower supply. They are also extremelycompact, so they can be deployed directlyin the test lab, without the need for special
pump housing facilities.

7Regional Business Centers

T HE AM E R IC AS

EU R O PE

A S I A / PA C I FI CMTS Systems Corporation
14000 Technology Drive
Eden Prairie, MN 55344-2290
USATelephone: 952-937-4000
Toll Free: 800-328-2255
E-mail: info@mts.com
Internet: www.mts.com

MTS Systems France
BAT EXA 16
16/18 rue Eugène Dupuis
94046 Créteil Cedex
FranceTelephone: +33-(0)1-58 43 90 00
E-mail: contact.france@mts.com

MTS Japan Ltd.
Raiden Bldg. 3F 3-22-6,
Ryogoku, Sumida-ku,
Tokyo 130- 0026
JapanTelephone: +81 3 5638 0850
E-mail: mtsj-info@mts.com

MTS Systems (Germany) GmbHHohentwielsteig 314163 Berlin
Germany
Telephone: +49-(0)30 81002-0
E-mail: euroinfo@mts.com

MTS Korea, Inc.
2nd F, Bundang Yemiji Building, 31,
Hwangsaeul-ro 258beon-gil,
Bundang-gu, Seongnam-si,Gyeonggi-do, 13595
Korea
Telephone: +82-31-728-1600
E-mail: mtsk-info@mts.com

MTS Systems S.R.L. a socio unico
Strada Pianezza 289
10151 Torino
Italy
Telephone: +39-(0)11 45175 11 sel. pass.
E-mail: mtstorino@mts.com
MTS Systems Norden AB
Datavägen 37bSE-436 32 Askim
SwedenTelephone: +46-(0)31-68 69 99
E-mail: norden@mts.com
MTS Systems Limited
98 Church Street,Hunslet,
Leeds
LS102AZ
United Kingdom
Telephone: +44 (0) 113 270 8011
E-mail: mtsuksales@mts.com

MTS Systems Corporation
14000 Technology Drive
Eden Prairie, MN 55344-2290 USA
ISO 9001 Certified QMS
http://www.mts.com

MTS Systems (China) Co., Ltd.
Floor 34, Building B,
New Caohejing International
Business Center,
No.391, Guiping Road,
Xuhui District
Shanghai 200233
P.R.China
Telephone: +021-24151000
Market: +021-24151111
Sales: +021-24151188
Service: +021-24151198
E-mail: MTSC-Info@mts.com
MTS Testing Solutions India Pvt Ltd.
No. 38, Ground Floor, Donata Radiance,
1st Cross, Tavarekere Main Road,DRC Post, Krishna Nagar Industrial Layout,Kormangala, Bangalore – 560 029
India
Telephone: + 91 80 46254100
Email: mts.india@mts.com

MTS, Temposonics, DuraGlide and SureCoat are registered trademarks andSilentFlo is a trademark of MTS Systems Corporation in the United States.
These trademarks may be protected in other countries. RTM No. 211177.
©2023 MTS Systems Corporation
100-242-956b HydraulicActuators • Printed in U.S.A. • 08/23