{"id":6706,"date":"2026-04-25T05:16:18","date_gmt":"2026-04-25T05:16:18","guid":{"rendered":"https:\/\/myfeqd.com\/?post_type=product&p=6706"},"modified":"2026-04-25T05:18:37","modified_gmt":"2026-04-25T05:18:37","slug":"scl-series-locking-air-cylinders","status":"publish","type":"product","link":"https:\/\/myfeqd.com\/es\/producto\/scl-series-locking-air-cylinders\/","title":{"rendered":"SCL Series locking air cylinders"},"content":{"rendered":"

The SCL Series double-acting cylinders with locking mechanisms\uff08SCL Series locking air cylinders<\/strong>\uff09 are standard tie-rod type double-acting cylinders.<\/p>\n

Equipped with an integrated mechanical locking structure, they enable piston locking at any point along the stroke, thereby preventing cylinder slippage or free-fall in the event of power or air supply failure. These cylinders are characterized by reliable positioning and robust safety protection.<\/p>\n

They are ideally suited for automation applications requiring intermediate stopping, load holding, or emergency braking capabilities.<\/p>\n

Caracter\u00edsticas<\/strong><\/span><\/p>\n

    \n
  1. Equipped with a built-in locking mechanism, it can be locked at any point within its stroke; it maintains its position even in the event of power or air supply failure, ensuring safety and stability.<\/li>\n
  2. Cylinders with locks are classified into two types: those with a lock on the front cover and those with a lock on the rear cover.<\/li>\n
  3. There are two unlocking methods: automatic and manual.<\/li>\n<\/ol>\n

    List of Symbols<\/strong><\/span><\/p>\n

    \"SCL<\/p>\n

    Technical Specifications<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Bore diameter (mm)<\/td>\n32<\/td>\n40<\/td>\n50<\/td>\n63<\/td>\n80<\/td>\n100<\/td>\n<\/tr>\n
    Action Form<\/td>\nStandard Double-Acting Type with Lock<\/td>\n<\/tr>\n
    Working Medium<\/td>\nClean air (filtered through a screen with a mesh size of 40 \u00b5m or larger)<\/td>\n<\/tr>\n
    Fixed Installation Configuration<\/td>\nFA,FB,CA,B,LB,TC,TCM1<\/td>\n<\/tr>\n
    Operating Pressure Range<\/td>\n0.15~1.0Mpa\uff0822~145Psi\uff09\uff081.5~10.0bar\uff09<\/td>\n<\/tr>\n
    Guaranteed Pressure Resistance<\/td>\n1.5Mpa\uff08215psi\uff09\uff0815bar\uff09<\/td>\n<\/tr>\n
    Operating Temperature Range<\/td>\n-20\u00b0C~70\u00b0C<\/td>\n<\/tr>\n
    Operating Speed \u200b\u200bRange<\/td>\n30~800 mm\/s<\/td>\n<\/tr>\n
    Travel Tolerance Range<\/td>\n\uff080~250 +1.0\uff09\uff08250~1000\u00a0 +1.5\uff09\uff081001~1500 +2.0\uff09<\/td>\n<\/tr>\n
    Buffering Form<\/td>\nAdjustable Cushioning (Air Cushioning)<\/td>\n<\/tr>\n
    Cushion Stroke: Non-Locking End<\/td>\n21<\/td>\n28<\/td>\n29<\/td>\n<\/tr>\n
    Cushion Stroke: Lock-side<\/td>\n17<\/td>\n18<\/td>\n20.5<\/td>\n22<\/td>\n<\/tr>\n
    Connection Thread Diameter<\/td>\nPT1\/4<\/td>\nPT3\/8<\/td>\nPT1\/2<\/td>\n<\/tr>\n
    Piston Rod Connection Accessories<\/td>\nI: I-Type Joint U: Fish-Eye Joint Y: Y-Type Joint F: Floating Joint<\/td>\n<\/tr>\n
    Compatible with Magnetic Switches<\/td>\nCS1-U,D-A93,D-M9B,DMSG Series,DMSE Series,DMSH Series<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Note: Connecting pipe threads are available in NPT and G thread options.<\/p>\n

    Standard Travel Range<\/strong><\/span><\/p>\n

    SCL Series locking air cylinders<\/p>\n\n\n\n\n\n\n\n\n
    Bore diameter (mm)<\/td>\nStandard Travel Stroke\uff08mm\uff09<\/td>\nMaximum Travel<\/td>\nPermissible Travel<\/td>\n<\/tr>\n
    40<\/td>\n25.50.75.80.100.125.150.160.175.200.250.300.350.400.450.500.600.700.800<\/td>\n1200<\/td>\n1800<\/td>\n<\/tr>\n
    50<\/td>\n25.50.75.80.100.125.150.160.175.200.250.300.350.400.450.500.600.700.800.900.1000<\/td>\n1200<\/td>\n1800<\/td>\n<\/tr>\n
    63<\/td>\n1500<\/td>\n1800<\/td>\n<\/tr>\n
    80<\/td>\n1500<\/td>\n1800<\/td>\n<\/tr>\n
    100<\/td>\n1500<\/td>\n1800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Note:For other special stroke lengths, please contact Wenzhou Maifeng Pneumatic Co., Ltd. (MYFEQD).<\/p>\n

    The detailed data regarding the theoretical output force of the cylinder is identical to that of the SC Series standard cylinders<\/a><\/span>.<\/span><\/span><\/p>\n

    Finished Product Order Code<\/strong><\/span><\/p>\n

    \"SCL<\/p>\n

    Note: The cylinder mounting accessories are interchangeable with the SAU series, while the TC accessories are designed for use with the TCM1.<\/p>\n

    Internal Structure and Materials of Main Components<\/strong><\/span><\/p>\n

    \"SCL<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    Item Number<\/td>\nNombre<\/td>\nMaterial<\/td>\nItem Number<\/td>\nNombre<\/td>\nMaterial<\/td>\n<\/tr>\n
    1<\/td>\nNut<\/td>\nCarbon Steel<\/td>\n10<\/td>\nPiston O-ring<\/td>\nNBR<\/td>\n<\/tr>\n
    2<\/td>\nPiston Rod<\/td>\nS45 Hard Chrome-Plated Ground Bar<\/td>\n11<\/td>\nPlunger<\/td>\nCarbon Steel<\/td>\n<\/tr>\n
    3<\/td>\nFront Cover O-ring<\/td>\nTPU<\/td>\n12<\/td>\nWear Ring<\/td>\nWear-resistant materials<\/td>\n<\/tr>\n
    4<\/td>\nFront Cover<\/td>\nAluminum Alloy<\/td>\n13<\/td>\nMagnet<\/td>\nBlastic<\/td>\n<\/tr>\n
    5<\/td>\nbushing<\/td>\nWear-resistant materials<\/td>\n14<\/td>\nBuffer Seal<\/td>\nTPU<\/td>\n<\/tr>\n
    6<\/td>\nBuffer O-ring<\/td>\nTPU<\/td>\n15<\/td>\nLock Combination<\/td>\n<\/td>\n<\/tr>\n
    7<\/td>\nCylinder Block<\/td>\nAluminum Alloy<\/td>\n16<\/td>\nBack Cover<\/td>\nAluminum Alloy<\/td>\n<\/tr>\n
    8<\/td>\nPiston Rod O-ring<\/td>\nNBR<\/td>\n17<\/td>\nPillar<\/td>\nCarbon Steel<\/td>\n<\/tr>\n
    9<\/td>\nPiston<\/td>\nAluminum Alloy<\/td>\n18<\/td>\nPillar Nut<\/td>\nCarbon Steel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    SCL Series locking air cylinders Size Information<\/strong><\/span><\/p>\n

    \"SCL<\/p>\n\n\n\n\n\n\n\n\n
    Bore \/ Symbol<\/td>\nA<\/td>\nAB<\/td>\nCA<\/td>\nAD<\/td>\nAE<\/td>\nB<\/td>\nC<\/td>\nCB<\/td>\nD<\/td>\nDA<\/td>\nE<\/td>\nEA<\/td>\nF<\/td>\nFA<\/td>\nH<\/td>\nK<\/td>\nKA<\/td>\nKB<\/td>\nM<\/td>\nMA<\/td>\nP<\/td>\nPA<\/td>\nPB<\/td>\nPC<\/td>\n<\/tr>\n
    40<\/td>\n144.5<\/td>\n49<\/td>\n95.5<\/td>\n30<\/td>\n27.5<\/td>\n50<\/td>\n76.5<\/td>\n15<\/td>\n16<\/td>\n34<\/td>\nM12*1.25<\/td>\n24<\/td>\n17<\/td>\n7<\/td>\n13<\/td>\nM6*1.0<\/td>\n14.5<\/td>\n37<\/td>\n32<\/td>\n15<\/td>\nPT1\/4<\/td>\n17.5<\/td>\n6<\/td>\n15<\/td>\n<\/tr>\n
    50<\/td>\n152.5<\/td>\n57<\/td>\n95.5<\/td>\n30<\/td>\n27.5<\/td>\n62<\/td>\n88.5<\/td>\n15<\/td>\n20<\/td>\n42<\/td>\nM16*1.5<\/td>\n32<\/td>\n23<\/td>\n8<\/td>\n17<\/td>\nM6*1.0<\/td>\n14.5<\/td>\n47<\/td>\n38<\/td>\n15<\/td>\nPT1\/4<\/td>\n17.5<\/td>\n8.5<\/td>\n17<\/td>\n<\/tr>\n
    63<\/td>\n157<\/td>\n57<\/td>\n100<\/td>\n31.5<\/td>\n27.5<\/td>\n75<\/td>\n100.5<\/td>\n14<\/td>\n20<\/td>\n42<\/td>\nM16*1.5<\/td>\n32<\/td>\n23<\/td>\n8<\/td>\n17<\/td>\nM8*1.25<\/td>\n14.5<\/td>\n56<\/td>\n38<\/td>\n15<\/td>\nPT3\/8<\/td>\n18<\/td>\n9.5<\/td>\n15<\/td>\n<\/tr>\n
    80<\/td>\n188<\/td>\n75<\/td>\n113<\/td>\n39<\/td>\n33<\/td>\n94<\/td>\n122.5<\/td>\n15<\/td>\n25<\/td>\n54<\/td>\nM20*1.5<\/td>\n40<\/td>\n26<\/td>\n10<\/td>\n22<\/td>\nM10*1.5<\/td>\n17<\/td>\n70<\/td>\n47<\/td>\n21<\/td>\nPT3\/8<\/td>\n25.5<\/td>\n10<\/td>\n19.5<\/td>\n<\/tr>\n
    100<\/td>\n194<\/td>\n75<\/td>\n119<\/td>\n39<\/td>\n33<\/td>\n112<\/td>\n140.5<\/td>\n15<\/td>\n25<\/td>\n54<\/td>\nM20*1.5<\/td>\n40<\/td>\n26<\/td>\n10<\/td>\n22<\/td>\nM10*1.5<\/td>\n17<\/td>\n84<\/td>\n47<\/td>\n21<\/td>\nPT1\/2<\/td>\n22.5<\/td>\n7<\/td>\n16.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    The dimensions are identical for both the magnetic and non-magnetic versions.<\/p>\n

    Usage and Maintenance<\/strong><\/span><\/p>\n

    \"SCL<\/p>\n

    1. In the Locked State: If pressure is applied to Port A while neither of the side ports is pressurized, there is a significant risk\u2014such as the locking mechanism failing to disengage or suddenly releasing\u2014that could result in the piston rod being violently ejected.<\/p>\n

     <\/p>\n

    When disengaging the locking mechanism, it is imperative to apply pressure to Port B and to ensure that the mechanism is released while under a no-load condition.<\/p>\n

     <\/p>\n

    2. If a quick exhaust valve is used to accelerate the retraction speed, the cylinder body may sometimes begin to move before the locking pin disengages, thereby preventing proper unlocking.<\/p>\n

     <\/p>\n

    Therefore, please do not use quick exhaust valves with locking cylinders.<\/p>\n

     <\/p>\n

    3. Please do not use this product in combination with 3-way solenoid valves (particularly the center-closed metal-seal type).<\/p>\n

     <\/p>\n

    If pressure remains trapped within the air port of the unit equipped with a locking mechanism, the locking function will not engage.<\/p>\n

     <\/p>\n

    Furthermore, even if the unit does lock, air leaking from the solenoid valve will continue to enter the cylinder, causing the lock to disengage after a period of time.<\/p>\n

     <\/p>\n

    4. If the locking mechanism is subjected to back pressure during operation, it may occasionally disengage.<\/p>\n

     <\/p>\n

    Therefore, please use a standalone or integrated solenoid valve featuring individual exhaust ports.<\/p>\n

     <\/p>\n

    5. In the case of a cylinder equipped with adjustable cushioning, if the cushion needle valve of the locking mechanism is overtightened, the piston may sometimes bind at the end of its stroke, potentially leading to damage to the locking mechanism.<\/p>\n

     <\/p>\n

    Therefore, the needle valve should be adjusted to ensure that the piston does not bind.<\/p>\n

     <\/p>\n

    6. Upon completing manual operation of the locking mechanism, be sure to return the manual device to its original position.<\/p>\n

     <\/p>\n

    Furthermore, please refrain from performing manual operations at any time other than during adjustment, as doing so poses a safety risk.<\/p>\n

     <\/p>\n

    7. When adjusting the cylinder mounting machine, please release the lock. Performing installation or similar operations while the unit is in the locked state will result in damage to the locking mechanism.<\/p>\n

     <\/p>\n

    8. Under no circumstances should you use more than two pneumatic cylinders with locks to simultaneously drive a single workpiece; doing so may occasionally result in one of the cylinders failing to unlock.<\/p>\n

     <\/p>\n

    9. Please use the speed control valve in the exhaust throttling mode; in the intake throttling mode, it may sometimes be impossible to release the lock.<\/p>\n

     <\/p>\n

    10. When operating the unit with the locking mechanism, please ensure that the cylinder is utilized to the full extent of its stroke. If the cylinder piston does not reach the end of its stroke, the locking mechanism may fail to engage or disengage.<\/p>\n

     <\/p>\n

    11. Manual Method for Releasing the Non-Locking Mechanism:<\/p>\n

     <\/p>\n

    Thread the pull rod into the anti-drop piston, then apply a force of at least 20 N to pull the bolt outward; once the anti-drop piston shifts, the lock is released.<\/p>\n

     <\/p>\n

    (This applies when the unit is mounted horizontally under no-load conditions, or when the air port on the opposite side is pressurized.) Alternatively\u2014or upon releasing the pull rod\u2014the anti-drop piston returns to its original position driven by the action of the stopper spring, engages with the groove in the piston rod, and the piston enters the locked state.<\/p>\n

     <\/p>\n

    In addition to the information regarding cylinders provided above, the following related details should also be reviewed.<\/strong><\/span><\/p>\n

      \n
    • Cylinder Mounting Accessories<\/strong><\/span><\/li>\n
    • How to Choose a Pneumatic Cylinder<\/strong><\/span><\/li>\n
    • How do you calculate the load ?<\/strong><\/span><\/li>\n
    • Pneumatic Accessory: Pneumatic Magnetic Switch<\/strong><\/span><\/li>\n
    • External Buffering Device: Buffer<\/strong><\/span><\/li>\n
    • How to extend the service life of a pneumatic cylinder?<\/strong><\/span><\/li>\n
    • Common Cylinder Problems and Repair<\/strong><\/span><\/li>\n
    • Contact us for custom non-standard pneumatic cylinders.<\/strong><\/span><\/li>\n<\/ul>\n

       <\/p>","protected":false},"excerpt":{"rendered":"

        \n
      • High-Quality Sealing Ring: 10-Million-Cycle Lifespan.<\/li>\n
      • Features a 6-layer sealing ring that remains leak-free under an air pressure of 1.4 MPa.<\/li>\n
      • Thickened end caps and tie-rod design ensure strong load-bearing capacity.<\/li>\n
      • Bi-directional POM guide ring: offers strong support and excellent wear resistance.<\/li>\n
      • The inner wall of the cylinder barrel undergoes a triple precision grinding and polishing process, reducing the friction resistance value to as low as 0.04.<\/li>\n
      • The piston rod is made of 45# medium-carbon steel, featuring a precision-ground and chrome-plated finish, with a friction coefficient of 0.02.<\/li>\n<\/ul>","protected":false},"featured_media":6707,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[],"product_cat":[79,111],"product_tag":[],"class_list":{"0":"post-6706","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pneumatic-cylinder","7":"product_cat-standard-pneumatic-cylinder","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"\nSCL Series locking air cylinders - MYFEQD Pneumatic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/myfeqd.com\/es\/producto\/scl-series-locking-air-cylinders\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SCL Series locking air cylinders - MYFEQD Pneumatic\" \/>\n<meta property=\"og:description\" content=\"High-Quality Sealing Ring: 10-Million-Cycle Lifespan. Features a 6-layer sealing ring that remains leak-free under an air pressure of 1.4 MPa. Thickened end caps and tie-rod design ensure strong load-bearing capacity. Bi-directional POM guide ring: offers strong support and excellent wear resistance. The inner wall of the cylinder barrel undergoes a triple precision grinding and polishing process, reducing the friction resistance value to as low as 0.04. 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Features a 6-layer sealing ring that remains leak-free under an air pressure of 1.4 MPa. Thickened end caps and tie-rod design ensure strong load-bearing capacity. Bi-directional POM guide ring: offers strong support and excellent wear resistance. 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