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GERWAH - Permanent Magnetic Clutches & Brakes

GERWAH - Permanent Magnetic Clutches & Brakes

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<strong>Permanent</strong> <strong>Magnetic</strong><strong>Clutches</strong> & <strong>Brakes</strong>®Edition 10/2005DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com


G E R W A HT h e C o m p a n yGerwah GmbH was founded in 1980.The idea of new, innovative productshas made Gerwah a recognized partnerin the machine tool industry.dynamic, spirited and fast growingcompany with clear goals and open mindthat is reflected in the architectureof our new headquarters.Our Goals• To add value for our customers byproviding innovative product solutions• To develop solutions in cooperationwith our customers• Satisfied customersOur Advantages• Know-how, innovative designs andcutting edge manufacturing plants• Customer oriented employees• Technical assistance and service,both locally and internationally• Qualified sales force• Economic stability• Worldwide presence withsubsidiaries and dealersOur new headquarters in Grosswallstadt, GermanyHamburgBerlinPragueFrankfurtChotesovPilsenGrosswallstadtMunich<strong>GERWAH</strong> - You Can Rely On Us!We are certified according to DIN EN ISO 9001 (Cert.-No. 0063-D)DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com®2 info@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt


<strong>Magnetic</strong> <strong>Clutches</strong> Advantages at a glancePrecise torque limitationfrom 0,0 to 1000 Nm (synchronous clutch)• Easy and fast adjustable torque infinitelyadaptable to your requirements• Even for extreme high rotation speeds• Independent of age and operationUnlimited number of overload cycles• Absolutely abrasion-free• Rated torque level remains ever constantSuperior hygiene requirements: no abrasion• No working material means or external suppliances• Also available in high-grade steelSuperior transmission with application of hysteresis clutches• Constant and soft slipping at torque limitation• ”Soft starts” - smooth starting moments• The shafts to be connected can be operated withdifferent rotation speed• Contact-free power transmissionHigh-tech torque transmission<strong>GERWAH</strong>-magnetic clutches donot transmit torques throughmechanical connections like theirmechanical counterparts but byusing magnetic force. It has to bedistinguished between synchronous-and hysteresis clutchesaccording to the function principlein use.The synchronous clutchSynchronous clutches transmittorques due to magnetic force,which is produced through periodicallyarranged, opposite lyingpermanent magnets. According tothe size of the clutch torques upto 1000 Nm can be transmitted.When exceeding the rated torquelevel the magnetic force breaksoff, the clutch slips through andnow can only transmit a minorrest torque. The synchronousclutch owes its name to its nature,only able to transmit torque if asynchronous action of the connectingsystem is granted.<strong>Permanent</strong> MagnetsThe hysteresis clutchAt this type of clutch, one half of theclutch is coated with a hysteresislining instead with a permanent magnet.This hysteresis material actssimilar according to the permanentmagnet but through the hysteresislining poles can be changed with anextrem low power demand. In casethe rated torque level of the clutchexceeds, the clutch begins to slipthrough. Thereby the hysteresis materialtakes up energy from the startingsystem, due to the permanentchanging of poles caused by thepassing by of the permanent magnets,and transforms this kineticpower into heat which is conductedaway into the environment.<strong>Permanent</strong> Magnets Hysteresis LiningPlease do not hesitate to contact us if you wish further information concerning this new and trendsettingtechnology. We would be pleased to give you more detailed information!®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.cominfo@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt3


<strong>Permanent</strong> <strong>Magnetic</strong> <strong>Clutches</strong> Product Range<strong>GERWAH</strong>-magnetic clutches offer a greater varietyand due to their flexible design can be used formany applications. The creative technical designerwill find a wealth of possibilities enabling him tosolve former problems more easily and in a moreelegant way. Our technical department is pleasedto be at your disposal helping you design themost favourable clutch fulfilling all requirementsof your desired field of application.<strong>Magnetic</strong>Hysteresis<strong>Clutches</strong>HSVHLVHKDCompact construction; easy adjustabletorque; a completely stainlesssteelversion possible; flexibleattachment possibilitiesTechnical Data Page 5Narrow construction; easy adjustabletorque; a completely stainless-steelversion possible; flexible attachmentpossibilitiesTechnical Data Page 6Flexible application; torque adjustablewithin limits; This clutch consists oftwo clutch halfs and is not bearingmounted!Technical Data Page 7<strong>Magnetic</strong>Synchronous<strong>Clutches</strong>Specialmodels ofhysteresisandsynchronousclutchesMKDLow construction volume; flexibleapplication; torque adjustable withinlimits; This torque consists of two clutchhalfs and is not bearing-mounted!Technical Data Page 8MKSoutputbarrier candriveMK/SVShort lenght; intermating; free ofwear; This clutch consists of twoclutch halfs and is not bearingmountedTechnical Data Page 9We design magnetic clutches accordingto your special requirements and arepleased to offer you our advice!Example slot-free clutch MKSSpecial model of type MKD with extendedair slot. Thereby torque transmissioninto a hermetically sealed container ispossible. Possible field of application:driving of pumps.Range of applications• Bottle cap plants• Roll-up and unroll systems• <strong>Brakes</strong>• Test procedures• Packing technology• As safety clutch in e.g. extrusionplants, shredders, or similar• Driving of pumps• For ”soft starts”• As safety clutch with ”smooth”overload transition• Food industry• Cosmetic production• Medical engineeringThe information in this catalogue containsproduct descriptions and doesnot constitute any specific promises.The user must define and check thetechnical features for use in each specificapplication. All data is subject tochange without notice. Only individualagreements are binding for productssupplied.®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com4 info@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt


<strong>Permanent</strong> <strong>Magnetic</strong> Hysteresis Clutch Series HSVLØ CClamping screwAdjustment range V10 14HSVØ AØ T 3x120°Ø DØ B H7510251,01,52,0Ø10Ø EØ F H7Torque scaleHalf withlow inertiaSpanner surfaceoptionalTechnicalDataSeries HSVTypeTorque (adjustable) 1) (Nm) ME Version aVersion b10,4 - 1,00,2 - 0,52 40,8 - 2,0 1,6 - 4,00,1 - 1,3 0,2 - 2,6Max. power dissipation (thermal limited) 2) (W) PV15 (20)23 (30)30 (40)Max. rotating speed 3) (min -1 ) n max400035003000Max. temperature of sorrounding air (°C) T0 - 400 - 400 - 40Weight (kg) mges0,81,21,9Inertia outside half (10 -3 kgm 2 ) Jout0,360,621,62inside half (10 -3 kgm 2 ) Jin0,130,250,79Max. forces radial (N) Frad200300400axial (N) Fax150200250Standard model with aluminium housing, with stainless steel bearings, rare earth magnets, sintered hysteresis materialDimensions(mm)Series HSVTypeØ AØ B173182 4791052530Ø CM3M4M4Ø D 4)M16 x 1,5M18 x 1,5M24 x 1,5Ø E 4)M16 x 1,5M18 x 1,5M24 x 1,5Ø F202530Ø T253348L466161V810101) Other torque values on request2) In clamps: max power loss using high temperature permanent magnets3) Depending on overload ratio and torque4) Other dimensions on requestRange ofapplications• Bottle capping machines• Wind up and unwind systems• <strong>Brakes</strong>• Test procedures®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.cominfo@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt5


<strong>Permanent</strong> <strong>Magnetic</strong> Hysteresis Clutch Series HLVHMLClamping screwNHHLVadjustment range VØ AØ CØ B H7Ø D1,01,21,41,61,8Ø EØ F H7Ø GTorqueskaleadjustmentrange VTechnicalDataSeries HLVTypeTorque (adjustable) 1) (Nm) MEMax. power dissipation 2) (W) PVMax. rotating speed 3) (min -1 ) n maxMax. temperature of sorrounding air (°C) TWeight (kg) mgesInertia outside half (10 -3 kgm 2 ) Joutinside half (10 -3 kgm 2 ) JinMax. forces radial 5) (N) Fradaxial (N) Fax10,4 - 1,018 (25)40000 - 401,20,430,091501002 40,7 - 2,0 1,5 - 4,025 (35)40 (55)350030000 - 400 - 401,63,20,872,680,210,549200250150200Dimensions(mm)Series HLVStandard model made of stainless steel, with stainless steel bearings, rare earth magnets, sintered hysteresis materialTypeØ AØ BØ C 4)Ø DØ E 4)Ø FØ GHL 6)MNV1) Other torque values on request2) In clamps: max power loss using high temperature permanent magnets3) Depending on overload ratio and torque4) Other dimensions on request5) Frad applied in max. 40 mm from clutch end6) For assembly the total length (with L + V) must be considered15530M27 x 1,510M27 x 1,530508902020152 46035M32 x 1,515M32 x 1,53555101132525188040M38 x 1,520M48 x 1,55574,512136294020Range ofapplications• Bottle capping machines• Packaging technologyDIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com®6 info@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt


<strong>Permanent</strong> <strong>Magnetic</strong> Hysteresis Clutch Series HKDHKDThe couplingconsistsCLI (DIN 912)Kof twoseparatedhalfs whichhave to beØ AØ D1 H7Ø D2 H7Ø Bsupportedby thecustomer!The permanent magnetic hysteresis clutch consists oftwo separated halfs which are telescoped. In the innerpart of the outside hub the hysteresis material is coatedon, on the outside of the inner hub the permanentmagnets are attached. The maximum transmittable torqueof the clutch can be changed by modifying the hubsubmergence. At overload status the clutch will slipthrough in a ”sliding” manner, contact free and withoutany abrasion. The clutch ist connected with the shaft byclamping hubs.TechnicalDataSeries HKDTypeTorque (Nm) TKNMax. power dissipation (W) PV21) 2)0,144 10 18 30 60 1501) 2)0,251) 2)0,471) 2)0,9121,2141) 2)2,5201) 2)5,0301) 2)Inertia approx. outer part (10 -3 kgm 2 ) Jout0,0180,040,070,140,200,871,8inner part(10 -3 kgm 2 ) Jin0,0050,020,040,080,110,571,3Weight approx. outer part (kg) mout0,120,150,180,280,340,681,7inner part (kg) min0,070,110,160,250,270,511,6Max. app. rad. misalignment 3) (mm) Kr0,20,20,20,20,20,20,2Max. rotating speed 4) (min -1 ) n max10000900080007000600050004000Tightening torque of retaining screws (Nm)MA2336123050Dimensions(mm)Series HKDTypeLØ A255314 10 18 30 60 15058 58 78 88 107 13038 46 51 56 69 84Ø B25324045475768C8,21010121519,521,5Ø D 1H7 / Ø D 2H7min. - max.3 - 106 - 166 - 1910 - 2010 - 2014 - 2320 - 28K911,515,517,5162024IM3M4M4M5M6M8M10M(length of magnets)20202030304050Clamping hubs 2 to 60 made of aluminiumClamping hubs 150 made of steelOther material on request1) Other torque values on request2) Torque value adjustable by hub submergence3) Bigger approved misalignement on request4) Max. permanent slip speed limit depends on frequency and ratio of slippingsOrderingdataHKD 30 - 15 H7 - 12 H7 - xxTypeBore diameter D1Bore diameter D2Further details e.g. special material, keywayRange of applications• As brake for ”soft starts”• As safety clutch with”smooth” overload transition®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.cominfo@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt7


<strong>Permanent</strong> <strong>Magnetic</strong> Synchronous Clutch Series MKDMKDThe couplingconsistsCLI (DIN 912)Kof twoseparatedhalfs whichhave to beØ AØ D1 H7Ø D2 H7Ø Bsupportedby thecustomer!The permanent magnetic synchronous clutch consistsof two separated halfs which have to be supported bythe customer and then are telescoped. In the inner partof the outside hub and on the outside of the inner hubthe permanent magnets are attached. The maximumtransmittable torque of the clutch can be changed bymodifying the hub submergence. At overload status theclutch will slip through in a ”bucking” manner, contactfree and without any abrasion. The clutch ist connectedwith the shaft by clamping hubs.TechnicalDataSeries MKDTypeTorque (Nm) TKNTorsional stiffness approx. (Nm/rad) C T dyn1,2231) 2)2,54 10 18 30 60 150 3001) 2)51) 2)91) 2)131) 2)10 25 45 83 250 610 2300301) 2)601) 2)1501) 2)Inertia approx. outer part (10 -3 kgm 2 ) Jout0,0180,0380,080,140,210,601,86,7inner part(10 -3 kgm 2 ) Jin0,0050,0140,040,070,100,301,65,0Weight approx. outer part (kg) mout0,110,150,200,280,350,701,93,4inner part (kg) min0,070,110,160,230,280,531,43,1Max. app. rad. misalignment 3) (mm) Kr0,40,40,40,40,40,40,40,4Max. rotating speed (min -1 ) n max100009000800070006000500040003000Tightening torque of retaining screws (Nm)MA233612305090Dimensions(mm)Series MKDTypeLØ A255314 10 18 30 60 150 30058 58 78 88 107 130 14638 46 51 56 67 84 115Ø B2432404547576896C8,21010121519,521,526Ø D 1H7 / Ø D 2H7min. - max.3 - 106 - 166 - 1910 - 2010 - 2014 - 2320 - 2832 - 40IM3M4M4M5M6M8M10M12K911,515,517,516202432M(length of magnets)2020203030405060Clamping hubs 2 to 60 made of aluminiumClamping hubs 150 and 300 made of steelOther material on request1) Other torque values on request2) Torque value adjustable by hub submergence3) Bigger approved misalignment on request4) Axial misalignment changes the submergence and thus the torque;however, axial displacement in one direction is possible without limitationsOrderingdataMKD 30 - 15 H7 - 12 H7 - xxTypeBore diameter D1Bore diameter D2Further details e.g. stainless, other torquesRange of applications• As safety clutch• Other applications that require hightorque and limited dimensions®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com8 info@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt


<strong>Permanent</strong> <strong>Magnetic</strong> Safety Clutch Series MK/SVKrL ±1CCMK/SVThe couplingconsistsof twoseparatedhalfs whichhave to besupportedby thecustomer!Ø AØ D1Locking assemblyPSV 2002.3Locking assemblyPSV 2002.3Ø D2TechnicalDataSeriesMK/SVTypeTorque 1) (Nm) MMax. rotation speed (min -1 ) n maxMax. temperature of sorrounding air (°C) TWeight (kg) mgesMax. app. radial misalignement 2) (mm) KrInertia outer part (10 -3 kgm 2 ) Joutinner part (10 -3 kgm 2 ) JinTightening torque of screws (Nm) TA100Version a Version b5060000 - 603,10,42,71,01810060000 - 604,00,43,71,618200Version a Version b10040000 - 605,70,49,14,11820040000 - 607,30,412,26,218500Version a Version b25030000 - 6011,90,437,221,31850030000 - 6014,40,447,329,718Dimensions(mm)SeriesMK/SVTypeØ ACLØ D 1 / Ø D 2min. - max.100Version a Version b9431752020 - 2594311152020 - 25200Version a Version b12931753020 - 40129311153020 - 40500Version a Version b18931753520 - 40189311153520 - 401) Lower torque values on requestRange ofapplications• As safety clutch in e.g. extrusionplants, shredders, or similar®DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.cominfo@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt9


<strong>Magnetic</strong> <strong>Clutches</strong> ApplicationsSelected fields of application suitablefor <strong>GERWAH</strong> <strong>Magnetic</strong> <strong>Clutches</strong>As safety clutches<strong>GERWAH</strong> magnetic clutches offer excellent protection against overload.They guarantee long life even for most difficult systems through theirabrasion-free and precise operation.In bottle capping systemsOwing to technical superiority and elegant functionality compared to allother solutions, hysteresis clutches have become well established worldwidein this field of application. Precise torque limitation, abrasion-freeapplication, constant and jerkfree attitude within the overload area as wellas the stainless steel version prove to be fundamental advantages in thisoperational field. Specially our two models HSV and HLV have proventhemselves as excellent for the use in the bottling machines.In wind-up and unwind applicationsWithin this field of application it is of essential importance that the qualityof exact and constant torque limitation is granted. <strong>GERWAH</strong> hysteresisbrakes absolutely fulfill these requirements.As brakesEspecially for the application as a break the <strong>GERWAH</strong> magnetic clutchesshow themselves as manifold suitable: as a load for engines for example,or even as generators for test blocks and furthermore in many otherapplication fields. Through their abrasion-free operation, <strong>GERWAH</strong> hysteresisclutches offer fundamental advantages over friction based clutch systems.Within the progress technologyDue to their ability to transmit torque even by going through magneticnon-conducting materials, <strong>GERWAH</strong> magnetic clutches offer uniquepossibilities for sealing, for example in pumps.DIST. AUTORIZADOMEX (55) 53 63 23 31QRO (442) 1 95 72 60MTY (81) 83 54 10 18ventas@industrialmagza.com®10 info@gerwah.com • www.gerwah.com • Phone 0049-6022-22040 You Can Rely On Us! Fax 0049-6022-220411 • D-63868 Grosswallstadt

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