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ContactSMC if this occurs.Auto Switch Mounting Bracket Part No.Bore size(mm)Mountingbracket20/25BQ-132/4050/63BQ-240/5063BQP1-050Applicable switchReed switchSolid state switch쐌Auto switch mounting screwD-F7쏔, J79(M3 X 0.5 X 8l)D-F7쏔VD-A7, A8쐌Square nutD-J79CD-F7쏔W, J79WD-A73C,A80C쐌Auto switch mounting screwD-F7쏔WV(M3 X 0.5 X 10l)D-A7쏔H, A80HD-F7BAL쐌Auto switch spacerD-A79WD-F7쏔F쐌Auto switch mounting nutD-F7NTLNote쐌Switch mounting bracket쐌Auto switch mounting nut쐌Cross-recessed panhead small screw(M3 X 0.5 X 16l)쐌Hexagon socket head cap bolt(M3 X 0.5 X 14l)D-P5DW쏔Stainless steel mounting screw setThe set of stainless steel mounting screws (with nuts) described below is available and can be used depending on the operating environment.(The spacers for auto switches must be ordered separately, as they are not included.)BBA2: For D-A7/A8/F7/J7 typesThe stainless steel screws described above are used when the D-F7BAL switch is shipped mounted on to the cylinder.
When the switches areshipped as individual parts, the BBA2 set is included.4.1-12Auto Switch SpecificationsSeriesMKAuto Switch Mounting Position and Mounting Heightø12ø16Mounting conditiona)Mounting conditionb)a)b)D-A9AWBAWBMK/MK2RSRED-A9VA≅HsBABREC≅HsC..XMTSC..SD-F9D-F9WABAWWBMQRHCCCD-F9VD-F9WVAB≅HsB≅HsAB≅HsAB≅HsD-F9BALAWW(mm)D-A9ModelSymbolBore size(mm)1216A7.581216A10.511D-A9VW1.5(4)2(4.5)A7.58B00Hs1719A11.512B4.54W5.56D-F9V/D-F9WVA11.512B4.54W19.521.5D-F9BALModelSymbolBore size(mm)B00D-F9N/D-F9BD-F9P/D-F9WB3.53W14.515Hs17194.1-13Rotary Clamp Cylinder/Heavy DutySeriesMK2ø20, ø25, ø32, ø40, ø50, ø63How to OrderE MK2 B 20A73 SNumber ofauto switchesRotary clampcylinderThread Port(ø32 to ø63)—MountingRc(PT)SymbolG(PF)BE10 R FGSStyleThrough hole & both ends tapped(Standard)Rear flange∗Auto switchWithout auto switch(Built-in magnet)—∗ Refer to table below regardingauto switch model no.∗ The rear flange is equipped with bossmounting, so be sure to specify bodyoption "F".Bore size20253220mm25mm32mm405063Body option40mm50mm63mm—102050Clamp stroke10mm20mm50mmFNRotation direction(Release → Clamp)Standard (Female thread)Rear boss mountingWith armRClockwiseL CounterclockwiseClamp strokeSymbol21Bore sizeø20 to ø40ø20 to ø63ø50 to ø63Style Special functionElectricalentryIndicatorApplicable Auto Switches/Refer to the p.5.3-2 for further information on auto switch.Load voltageWiring(output)DC3 wire(NPN Equiv.)Part No.MK-A020MK-A032MK-A050AccessoriesConnectorClamp boltHexagonal sockethead cap screwHexagonal nutSpring seatDiagnostic indicatorGrommet(2 colour)YesGrommetø32 to ø63Perpendicular In-line Perpendicular In-lineA76H200V2 wireDirect mountingø20 to ø635V12VYes No Yes NoBore size (mm)202532405060Reed switchOption Part No./ArmGrommetACRail mounting24V100V5V, 12V ≤100V12V5V, 12V3 wire(NPN)5V, 12V3 wire(PNP)5V, 12V2 wire12V≤24VA72A73Bore size (mm)202532405063Part No.AccessoriesMK2-F020MK2-F025Boss mounting ringMK2-F032Set pinMK2-F040 Bolt for cylinder bodyMK2-F050MK2-F0633 wire(PNP)24V5V, 12V12VWater resistant Grommet(2 colour)With timerDiagnostic output(2 colour)Latching withdiagnostic output(2 colour)Strong magnetic field(2 colour)∗ Lead wireICA93VA90VA93A90ICICICF9NVF9NF9PVF9PF9BVF9BF7PICJ792 wireF7NWV F79WF7PWICF7BAF9BAF7NT3 wire (NPN)5V, 12V4 wire(NPN)2 wireRelayPLCF9PWV F9PWF7BWV J79W F9BWV F9BWF79FF7LFP5DW∗∗0.5m····· –(Example) A80C5m······· Z(Example) A80CZ3m········ L(Example) A80CL– ······· N(Example) A80CN∗ Solid state auto switches marked with a “” are manufactured upon receipt of order.∗∗ D-P5DW can be mounted for only ø40, ø50 and ø63.4.1-14RelayPLCF9NWV F9NW3 wire(NPN)Diagnostic indicator(2 color)A96J79CConnectorYesMounting Bracket Part No./FlangeSolid state switchF7BVA96VF7912VF7PVApplicableloadA72HA73HA80 A80HA73CA80CA79WF7NVLead wire∗(m)0.5 3 5 —(—) (L) (Z) (N)ICSeriesRotary Clamp Cylinder/Heavy DutyMK2Specifications20Bore size (mm)2532Rotary direction (3)9.515Clamp stroke (mm)Theoretical clamp force N (2)20·5071327471071821001853005258251400AirFluid0.1 to 10MPaOperating pressure rangeWith auto switch –10 to +60°C (No freezing)LubricationMounting1/81/4M5 X 0.8Through hole/Both ends tapped (Common), Rear flangeC..XCushionRubber bumperMTS+0.6–0.4Stoke tolerance (mm)50 to 200 mm/sPiston speed±1.2°Non-rotating accuracy±0.9°C..S±0.7°Note 1) Max.
bending moment applied to the piston rod side.Note 2) At 0.5 MPa.Note 3) Direction of rotation viewed from the rod side when the piston rod is retracting.Note 4) Refer to "Rotary angle" diagram.MQRHCTheoretical ForceBore size(mm)Unit: NOperating pressure (MPa)Rod dia. Operating Piston area(mm)direction(cm2)0.30.50.71.0R260.8100139200H390.2149208298R3.7112185258370H4.9149245341490R6182300418600H8243400557800R10.53195257311050H12.53806258701250R16.550282511491648H19.659698013651961R28851140019502801H31.2948156021723121201225123216401650206320Note) Theoretical force (N)=Pressure (MPa) X Piston area (cm2) X 100Refer to the p.5.4-1 regarding made toorder for series MK2.RECNon-lubePort sizeMade to OrderREWithout auto switch –10 to +70°C (No freezing)Ambient and fluid temperatureMK/MK2RS1.5MPaProof pressureOrdeerMad1910·20Allowable moment Nm (1)Rotary Angle63R: Clockwise L: CounterclockwiseRotary stroke (mm)Head sideflange5090° ± 10°Rotary angle (4)With arm40Double actingOperationOperation direction R: Rod side (Clamp)H: Head side (Release)Weight/MountingClamp stroke(mm)102050Unit: gBore size (mm)2025324050260295353635——30033555568011701620————14201890Additional WeightUnit: g202532405023571325With arm100100200200350350Rear flange133153166198345531Bore size (mm)Rear boss mounting63Calculation method (Example) MK2G20-10RFN Standard calculation: MK2B20-10R Extra weight calculation: Rear flangeRear boss mountingWith arm63260g133g2g100g495g4.1-15CCSeriesMK2ConstructionWith arm (N)MK220, 25!6!7!5!8!9MK232Auto switchy !2 @4 o @7 r i !1 t q @6u !0 @5 w eRear boss mounting (F)@0@3@9 #0!3MK240 to 63Rear flange (G)!4@1@2@8Component PartsNo.qwertyuio!0!1!2!3!4!5!6Component PartsDescriptionNoteMaterialAluminum alloyRod coverAluminum alloyCylinder tubePistonAluminum alloyBushingCopper bearing materialOnly ø32 to ø63Guide pinStainless steelPiston rodStainless steelBumperUrethaneOnly ø20 to ø32Ring nutCopper alloyScraper pressureStainless steelMagnetHex.
socket head cap screw Chrome molybdenum steel Sharp end section: 90°R-shape snap ringSpring steelPlateAluminumOnly ø40 to ø53C type retaining ringCarbon tool steelArmRolled steelClamp boltChrome molybdenum steelNo.!7!8!9@0@1DescriptionMaterialHexagonal nutRolled steelHex. socket head cap bolt Chrome molybdenum steelSpring washerHard steelBoss mount ringAluminum alloyFlangeRolled steel@2Hex.
socket head cap bolt Chrome molybdenum steel Quantity@3@4@5@6@7@8@9#0O ringCoil scraperPiston sealGasketRod sealParallel pinWear ringBumper BReplacement Parts: Seal KitsBore size (mm)Part No.Contentsø20ø25Not disassembledø32ø40MK2-40-PSSet of above @3 @4 @5 @6 @7∗Seal kit includes O ring @3, coil scraper @4, piston seal @5, gasket @6 and rod seal @7.Order a seal kit according to applicable bore size.4.1-16ø50MK2-50-PSø63MK2-63-PSNBRPhosphor bronzeNBRNBRNBRStainless steelResinUrethaneNoteø20, 25: 2ø32 to 63: 4Rotary Clamp Cylinder/Heavy DutyPrecautionsBe sure to read before handling.Refer to p.0-39 to 0-46 for SafetyInstructions and commonprecautions on the productsmentioned in this catalog.SeriesMK2Precautions for Designing and Mounting ArmsWhen arms are to be made separately, their length and weight should be within the following range.1. Allowable bending momentUse the arm length and operating pressure within graph 1 for allowable bendingmoment loaded piston rod.Graph 1Caution20HandlinglMK250/63MK/MK2MK232/4010Mounting bolt for MK2BWhen arm length is 8cm, pressure should beless thanMK220/25: 0.45MPaMK232/40: 0.55MPaMK250/63: 0.8MPa64OperatingrangeMounting bolt0.45 0.550.20.40.6Operating pressure (MPa)RHC0.81CC2.
Moment of inertiaGraph 23MK250/632MK2B20-10MK2B20-20MK2B25-10MK2B25-20MK2B32-10MK2B32-20MK2B40-10MK2B40-20MK2B50-20MK2B50-50MK2B63-20MK2B63-50C8.510.510610.510.59D75858090901008090105135105135Mounting boltM5 X 75lM5 X 85lM5 X 80lM5 X 90lM5 X 90lM5 X 100lM5 X 80lM5 X 90lM6 X 105lM6 X 135lM8 X 105lM8 X 135l10–2Moment of inertia (kg·m2)Part No.C..XMTSWhen the arm is long and heavy, damage of internal parts may be caused due to inertia.Use the inertia moment and cylinder speed within graph 2 based on arm requirements.Note) Be sure to use a flat washer to mountcylinders via through holes.RECMQ0.1Flat washerREC..SExample) M5 X 75 l (MK2B)CMK220/252Mounting method: A through hole mounting boltis available.How to order: Suffix “(MK2B)” to the size ofbolts to be used.DRS8Arm length l (cm)q Mount the cylinder so that the clampingpiston will be approximately in the centre ofthe clamp stroke.w The auto switch is temporarily mounted forshipment, so adjust its position whenmounting the cylinder.
(See the auto switchmounting position on p.4.1-20.)e Do not apply clamping and other loads whenthe piston rod is turning.MK232/40When arm's moment of inertia is5 X 10–3kg/m2, cylinder speed shouldbe less thanMK232/40: 66mm/sMK250/63: 120mm/sRefer to p.4.1-21 for calculating moment ofinertia.64MK220/25210–364Operatingrange210–46612050100Cylinder speed (mm/s)200To attach and detach the arm to and from thepiston rod, fix the arm with a wrench or vise andthen tighten the bolt.
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