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Installation and use notes define grounding and surface temperature 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ATEX certification classifications and temperature classes apply to CKA hydraulic cylinders?","Question",{"text":63,"@type":64},"The document lists equipment category, gas group, temperature class combinations, and zones for CKA, including configurations for dust and gas protection.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How is the CKA model code structured?",{"text":68,"@type":64},"It combines series number with parameters such as sub-plate inclusion, size codes, bore and rod diameters, stroke, mounting style, reference ISO, heads configuration, cushioning, options, and sealing system.",{"name":70,"@type":61,"acceptedAnswer":71},"What installation constraints are required for safe operation?",{"text":72,"@type":64},"The maximum surface temperature on the nameplate must meet specified limits for gas and dust, the fluid ignition temperature must exceed the surface temperature by 50°C, and the cylinder must be properly grounded to the machine 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94/9/CE ATEX directive- ISO 6020-2-nominal pressure 16 MPa (160 bar) -max 25 MPa (250 bar)  \n1  \nATEX CERTIFICATION  \n\n| Cylinder type | Group | Equipment\u003Cbr>category | Gas group | Temperature\u003Cbr>class (1) | Zone |\n| --- | --- | --- | --- | --- | --- |\n| CKA | II | 2 GD | II C | T85°C(T6)/T135 °C(T4) | 1 ,2 ,21 ,22 |\n| CKA + ex-proof rod position transducer (2) | II | 2 G | II B | T6 | 1 ,2 |\n|  | II | 3 D | - | T85°C | 22 |\n| CKA + ex-proof proximity sensors | II | 3 G | II | T4 | 2 |\n\nNotes: (1) Temperature class depends to the max fluid temperature and sealing system  \n(2) The rod position transducer is certified to work with explosive gas (cat. 2G) and dust (cat. 3D)  \n2  \nMODEL CODE  \nC KA cylinders are derived from standard CK (tab. B 137) with certification according to ATEX 94/9/CE. They are designed to limit the external surface temperature , according to the certified class , to avoid the self-ignition of the explosive mixtures potentially present in the environment. CKAM servocylinders are equipped with ex-proof built-in digital magnetostrictive position transducer , ATEX certified.  \n• Optional ex-proof proximity sensors , ATEX certified  \n• Bore sizes from 25 to 200 mm  \n• Up to 3 rod diameters per bore  \n• Strokes up to 5000 mm  \n• Single or double rod  \n• 16 standard mounting styles  \n• 5 seals options  \n• Attachments for rods and mounting styles , see tab. B500  \nFor cylinder ’s dimensions and options see tab B.137.  \nFor cylinder’s choice and sizing criteria see tab. B015.  \nCKA M / 10 – 50 / 22 / 22 * 0500 – S 3 0 1 – A – B1E3X1Z3 **  \nCYLINDER SERIES  \nCKA to ATEX 94/9/CE dimensions to ISO 6020-2  \nEX-PROOF POSITION TRANSDUCER See section  \nM = Digital magnetostrictive  \nINCORPORATED SUBPLATE (1)  \nOmit if not requested  \n10 = size 06  \n20 = size 10  \n30 = size 16  \n40 = size 25  \nBORE SIZE (1)  \nfrom 25 to 200 mm  \nROD DIAMETER (1)  \nfrom 12 to 140 mm  \nSECOND ROD DIAMETER for double rod (1) Omit if not requested  \nfrom 12 to 140 mm  \nSTROKE (1)  \nup to 5000 mm ( 4000 mm for CKAM )  \nMOUNTING STYLE (1)  \nC = fixed clevis D = fixed eye E = feet  \nG = front trunnion H = rear trunnion  \nK = feet with key (Ø 25÷63) L = intermediate trunnion N = front flange  \nREF. ISO  \nMP1 *  \nMP3 *  \nMS2  \nMT1  \nMT2 *  \n-MT4** ME5  \nREF. ISO  \nP = rear flange  \nS = fixed eye + spherical bearing T = threaded hole+tie rods extended V = rear tie rods extended  \nW = both end tie rods extended X = basic execution  \nY = front tie rods extended  \nZ = front threaded holes  \nME6 *  \nMP5 *  \nMX7  \nMX2  \nMX1  \n-  \nMX3  \nMX5  \n* Not available for double rod  \n** XV dimension must be indicated in the model code  \n5  \nSeries number (2)  \nHEADS’ CONFIGURATION (1) (3)  \nOil ports positions  \nB* = front head  \nX* = rear head  \nCushioning adjustments positions , to be entered only if adjustable cushionings are selected  \nE* = front head  \nZ* = rear head  \n* = selected position , (1 , 2 , 3 or 4) OPTIONS (3):  \nRod end (1)  \nF = female thread  \nG = light female thread  \nH = light male thread  \nOversized oil ports (1)  \nD = front oversized oil port  \nY = rear oversized oil port  \nEx-proof proximity sensors , see section  \nR = front sensor  \nS = rear sensor  \nRod treatment (1)  \nK = nickel and chrome plating  \nT = induction surface hardening and chrome plating Air bleeds (1)  \nA = front air bleed  \nW = rear air bleed  \nDraining (1)  \nL = rod side draining  \nSEALING SYSTEM , see section  \n1 = (NBR + POLYURETHANE) high static and dynamic sealing  \n2 = (FKM + PTFE) very low friction and high temperatures  \n4 = (NBR + PTFE) very low friction and high speeds  \n6 = (NBR + PTFE) very low friction, single acting-pushing  \n7 = (NBR + PTFE) very low friction, single acting-pulling  \nSPACER (1)  \n0 = none  \n2 = 50 mm  \n4 = 100 mm CUSHIONINGS (1)  \n0 = none  \nFast adjustable 1 = rear only  \n2 = front only  \n3 = front and rear  \n6 = 150 mm ","cbCaisgXdNcunQUI","https://ap.wps.com/l/cbCaisgXdNcunQUI","pdf",442519,"English","# ATEX CERTIFICATION\n## MODEL CODE\n## CERTIFICATION\n## INSTALLATION NOTES\n## EX-PROOF ROD POSITION TRANSDUCER","[{\"question\":\"What ATEX certification classifications and temperature classes apply to CKA hydraulic cylinders?\",\"answer\":\"The document lists equipment category, gas group, temperature class combinations, and zones for CKA, including configurations for dust and gas protection.\"},{\"question\":\"How is the CKA model code structured?\",\"answer\":\"It combines series number with parameters such as sub-plate inclusion, size codes, bore and rod diameters, stroke, mounting style, reference ISO, heads configuration, cushioning, options, and sealing system.\"},{\"question\":\"What installation constraints are required for safe operation?\",\"answer\":\"The maximum surface temperature on the nameplate must meet specified limits for gas and dust, the fluid ignition temperature must exceed the surface temperature by 50°C, and the cylinder must be properly grounded to the machine potential.\"}]","Hydraulic cylinders type CKA - ATEX certification - model code | PDF",1788564587]