Mts Series 244 Actuators Manuale Utente

Series 244 Actuators Product InformationModels 244.11, 244.12, 244.20, 244.21, 244.22, 244.23,244.31, 244.41, 244.51011-551-304 G be certain.

Warning:Warning notices indicate the presence of a hazard with a medium level of risk which, if ignored,can result in death, severe personal injury, o

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IntroductionTopics:•About the 244 Series Actuator...

About the 244 Series ActuatorThe Series 244 Actuator is a hydraulically powered device that provides displacement of (or forces into) aspecimen or str

Component IdentificationSeries 244 Actuators Product Information 15Introduction

Series 244 Hydraulic Actuator Major ComponentsDescriptionComponentItemThe piston rod has a hardened steel insert that provides aninternal thread for m

DescriptionComponentItemhydraulic fluid passed by the high-pressure seal back to thesystem hydraulic power supply.The inner part of the low-pressure/w

Functional DiagramDescriptionItemLVDT Core Mount1LVDT Core Extension2LVDT Coil3LVDT Connector4Extension Port5Retraction Port6About Actuator MountingTh

• Material test systems usually mount the actuator in a load unit assembly. The actuator can be mountedbelow the base plate or above the crosshead. Th

© 2013 MTS Systems Corporation. All rights reserved.Original Instructions (English): 011-551-304 GTrademark InformationMTS, be certain., Bionix, Elast

LVDT ComponentsDescriptionItemLocking Setscrew1Core Mount Setscrew2LVDT Core Extension3Hollow Piston Rod4LVDT Coil5Locking Collar6Pedestal Base7LVDT C

Effective Piston Areacm2Rod DiametermmForce Rating1KnModelNumber33.6869.968244.2025.1669.950244.2148.8469.9100244.2282.1369.9160244.23126.6595.3250244

5–40°C (41–104°F)Operating temperature0–85% noncondensingHumidity< 630 kcal/hr (2500 Btu/hr)Heat load63 dB (A) fully compensatedNoise3rating at 1 m

DimensionsSeries 244 Actuators Product Information 23Introduction

Actuator DimensionsDescriptionItemBASIC CYLINDER1FRONT END CAP2REAR END CAP3A (Cushion)4Stroke Length5C min.6B+ Stroke Length7-6 Drain8Rod Insert: “M”

ModelItem244.51244.41244.31244.23244.22244.21244.20244.12244.11Units44.544.525.419.119.119.119.119.119.1mmF263.4263.4139.7104.1104.1104.1104.181.381.3

ModelItem244.51244.41244.31244.23244.22244.21244.20244.12244.11Units1.751.501.501.001.001.001.000.750.75in.K11.0610.007.535.005.005.005.003.503.50in.L

Open LVDT HousingDescriptionItemCushion1Stroke Length2A min.368.6 mm (2.70 in) +Stroke Length4Rear End Cap LVDT Mounting54 holes, “B” thread size, “C”

Closed LVDT HousingDescriptionItemStroke + A1Spiral Washers or Adapter2Closed Housing LVDT3Closed Housing LVDT Specifications*Weight‡BA†Modellbkginmmi

Pedestal Base SpecificationsPedestal Base SpecificationsWeightDCBAModellbkginmminmminmminmm135.95.50139.74.50114.30.5614.21.5038.1244.11135.95.50139.7

ContentsTechnical Support 5How to Get Technical Support...

SafetyTopics:•General Safety Practices: Hydraulic Power Units and Hydraulic Service Manifolds...32•Safety Practices Before O

General Safety Practices: Hydraulic Power Unitsand Hydraulic Service ManifoldsThe hydraulic power unit (HPU) provides high pressure hydraulic fluid to

• Test specimensBecause of these variables (and the possibility of others), your system can operate under unforeseencircumstances that can result in a

Know potential crush and pinch pointsBe aware of potential crush and pinch points on your system and keep personnel and equipment clear ofthese areas.

• When you charge an accumulator, follow all the charging instructions provided in the appropriate productinformation manuals. When precharging accumu

Protect all system hoses and cables from sharp or abrasive objects that can cause the hose or cable to fail.Use a cable cover or cable tray where cabl

Safety Practices While Operating the SystemWear appropriate personal protectionWear eye protection when you work with high-pressure hydraulic fluid, h

Ensure secure cablesEnsure that all cable connections (electrical supply, control, feedback, sensor, communications, and so forth)are either locking t

Labels And IconsThe following labels and icons may be found on an actuator.Warning LabelPart #46-140-101WARNINGHydraulic pressure above 3000 psi can r

Installation 45About Installation...

Caution LabelPart #045-283-501CAUTIONHigh drain pressure can cause rod seal damage and hydraulic oil leakage.Remove drain line shipping cap and connec

Hydraulic Actuator ID TagPart #700-004-198Hydraulic Actuator ID tag lists the following:• Model Number• Serial Number• Assembly number/Rev• Force rati

Hydraulic Actuator ID tag lists the following:• Model Number• Serial Number• Assembly number/Rev• Force rating• Effective Area• Static Stroke• Dynamic

Lift Hole Thread SizePart #57-806-13Lift hole. Thread size will be specified on the actual label.Series 244 Actuators Product Information 43Safety

InstallationTopics:•About Installation...

About InstallationInstalling the Series 244 Actuator depends on the testing application.• For materials or component testing, the actuator is typicall

See the system assembly drawing, system functional drawing, and console assembly drawing (typicallylocated in a System Reference manual supplied with

Note:See the Series 249 Swivels manual (MTS part number 100-237-294) for more information about usingswivels with the actuator.Base TypesDescriptionIt

Swivel Base Mounting Bolt SpecificationsRecommendedBolt GradeMounting Bolt TorqueRecommendedMountingBolt SizeModelSAEISOlbf-ftN·mUNCmm12.912.934533/8-

Technical SupportHow to Get Technical SupportStart with your manualsThe manuals supplied by MTS provide most of the information you need to use and ma

Spiral WashersThe optional Model 601 Spiral Washers are typically used to provide fatigue-resistant connections betweenelements of the force train and

DescriptionItemUpper End Cap3Actuator Rod4Spiral Washers5Connector Studs6Swivel Head7Installing Fixtures with Spiral WashersThis procedure requires tw

Spiral Washer RotationDescriptionItemConnector Stud1Spiral Washer Rotation to Increase Thickness2Medium Thickness36. Place the spiral washers together

Warning:Do not exceed the maximum HPS output pressure or apply a force greater than any forcetrain component capacity.Exceeding the tensile load capac

Multiple Fixtures With Different RatingsSometimes you may have multiple fixtures in the force train that have different force ratings. When removingth

LVDT Cable ConnectionDescriptionItemOutput1Ground2Excitation3Yellow4Blue5Green6Black7Red8Hydraulic ConnectionsNote:When the Series 244 Actuator is ins

Hydraulic ConnectionsDescriptionItemSome manifolds support two servovalves.1Return Port2Drain Port3Pressure Port4Caution:Do not use inferior quality h

OperationTopics:•About Operation...

About OperationThis section describes how to use the Series 244 Actuator when side loads are applied during testing.Warning:Exceeding the maximum atta

Sideload ForcesTo avoid damaging the actuator bearings and to ensure proper actuator operation, tests that subject theactuator to nonaxial loads requi

When you have more than one MTS system, the system job number identifies your system. You can findyour job number in your order paperwork.Example syst

Sideload Calculation ConstantsCyclic Sideload KRod Diameter GBearing Area EBearing Length DBearing SpacingAModel0.6001.753.501.71005.960244.110.6001.7

Sideload ForcesDescriptionItemSideload Forces12. Calculate the actuator bearing load (L) using the following formula:where:S = Actuator strokeA = Cons

where:(MAPRV) = maximum allowable piston rod velocity6. If the sideload force is applied to the actuator cyclically (sideload varies equally through z

The result, 149.49 psi, is less than (950 psi).4. Calculate the piston bending stress and ensure that the value is less than 40,000 psi.The result, 22

MaintenanceTopics:•Maintenance Recommendations...

Maintenance RecommendationsThe Series 244 Actuator is designed for extended periods of operation without extensive maintenancerequirements.Warning:Cha

011-551-304 G

If You Contact MTS by PhoneA Call Center agent registers your call before connecting you with a technical support specialist. The agentasks you for yo

After you callMTS logs and tracks all calls to ensure that you receive assistance for your problem or request. If you havequestions about the status o

PrefaceBefore You BeginSafety first!Before you use your MTS product or system, read and understand the safety information provided with yoursystem. Im