{"id":7213,"date":"2026-07-23T14:05:35","date_gmt":"2026-07-23T06:05:35","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=7213"},"modified":"2026-07-23T14:05:53","modified_gmt":"2026-07-23T06:05:53","slug":"new-original-smc-cd85n25-50-b-iso-standard-cylinder","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/new-original-smc-cd85n25-50-b-iso-standard-cylinder\/","title":{"rendered":"New Original SMC CD85N25-50-B ISO Standard Cylinder"},"content":{"rendered":"
\n

Detailed Product Introduction: New Original SMC CD85N25-50-B ISO Standard Cylinder<\/h1>\n<\/div>\n
\n

1. Product Overview<\/h2>\n<\/div>\n
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The CD85N25-50-B is an original double-acting pneumatic cylinder manufactured by SMC, fully produced in accordance with international ISO 6432 standard specifications. It belongs to the CD85 series round body stainless steel mini cylinder range. The model breakdown is defined as follows: 25 stands for cylinder bore diameter 25 mm, 50 refers to the piston stroke length of 50 mm, suffix B represents the mounting configuration with front flange installation structure. This cylinder adopts integrated stainless steel barrel and precision internal sealing components, designed for reciprocating linear push and pull movements in pneumatic automation systems. It can be fitted with magnetic auto switches to achieve stroke position detection, widely applied in electronic assembly machinery, food processing equipment, packaging production lines, testing jigs, printing devices and light industrial automated assembly stations. The ISO standardized dimension layout ensures excellent interchangeability with other brands of ISO standard cylinders, convenient for equipment replacement and renovation.<\/div>\n<\/div>\n
\n

2. Main Functions<\/h2>\n<\/div>\n
\n
    \n
  1. Double-acting reciprocating drive: Compressed air is fed alternately into the front and rear air chambers to drive the piston rod extend and retract bidirectionally, providing stable thrust and pulling force for mechanical executing components.<\/li>\n
  2. Built-in permanent magnet structure: A magnet is embedded inside the piston, supporting external installation of SMC magnetic reed switches to sense piston limit positions for automatic signal feedback and stroke control.<\/li>\n
  3. Linear precise displacement output: Smooth piston movement ensures accurate linear positioning, suitable for short-stroke feeding, clamping, ejection and pressing operations.<\/li>\n
  4. Front flange fixed mounting: The flange plate at the front end enables rigid fixed installation on equipment panels, resisting lateral offset during operation.<\/li>\n
  5. Adaptable air source working mode: Operates with general factory filtered compressed air, compatible with conventional industrial pneumatic gas supply systems.<\/li>\n<\/ol>\n<\/div>\n
    \n

    3. Technical Specifications<\/h2>\n<\/div>\n
    \n
    \n
    \n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Specification Item<\/th>\nParameter Details<\/th>\n<\/tr>\n<\/thead>\n
    Full Model<\/td>\nCD85N25-50-B<\/td>\n<\/tr>\n
    Executive Standard<\/td>\nISO 6432 International Standard<\/td>\n<\/tr>\n
    Working Type<\/td>\nDouble Acting<\/td>\n<\/tr>\n
    Bore Size<\/td>\n25 mm<\/td>\n<\/tr>\n
    Rated Stroke<\/td>\n50 mm<\/td>\n<\/tr>\n
    Mounting Style<\/td>\nFront Flange Mount (Suffix B)<\/td>\n<\/tr>\n
    Operating Medium<\/td>\nFiltered Compressed Air<\/td>\n<\/tr>\n
    Operating Pressure Range<\/td>\n0.1 ~ 1.0 MPa<\/td>\n<\/tr>\n
    Proof Pressure<\/td>\n1.5 MPa<\/td>\n<\/tr>\n
    Ambient & Air Temperature<\/td>\n0 \u00b0C ~ 60 \u00b0C (No freezing inside cylinder)<\/td>\n<\/tr>\n
    Piston Rod Material<\/td>\nHard Chrome Plated Carbon Steel<\/td>\n<\/tr>\n
    Cylinder Barrel Material<\/td>\nStainless Steel Tube<\/td>\n<\/tr>\n
    Main Sealing Material<\/td>\nNitrile Rubber (NBR)<\/td>\n<\/tr>\n
    Piston Structure<\/td>\nIntegrated with Permanent Magnet<\/td>\n<\/tr>\n
    Cushion Mode<\/td>\nOptional adjustable air cushion at both ends<\/td>\n<\/tr>\n
    Lubrication<\/td>\nNon-lubricated operation available<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \n

    4. Overall Dimensions and Net Weight<\/h2>\n<\/div>\n
    \n

    External Dimensions (Unit: mm)<\/h3>\n<\/div>\n
    \n
      \n
    • Total extended overall length: 138<\/li>\n
    • Total retracted overall length: 88<\/li>\n
    • Outer diameter of cylinder barrel: 32<\/li>\n
    • Piston rod diameter: 12<\/li>\n
    • Front flange overall width: 50<\/li>\n
    • Flange mounting hole pitch: 38<\/li>\n
    • Port thread size: G1\/8<\/li>\n<\/ul>\n<\/div>\n
      \n

      Net Weight<\/h3>\n<\/div>\n
      \n
      Single cylinder net weight: 325 grams<\/div>\n<\/div>\n
      \n

      5. Core Technical Features<\/h2>\n<\/div>\n
      \n
        \n
      1. ISO standard unified dimensional design: All installation interfaces, air port positions and external outlines comply with ISO 6432, highly interchangeable for equipment maintenance and part replacement.<\/li>\n
      2. Corrosion-resistant stainless steel cylinder tube: Effectively resists moisture, mild oil mist and weak corrosive gas, suitable for humid workshop environments.<\/li>\n
      3. Low-friction high-performance sealing system: Optimized lip-shaped sealing rings reduce sliding resistance, ensure smooth piston movement without creeping at low pressure, and extend service life.<\/li>\n
      4. Adjustable air buffer mechanism: Air cushions on both ends slow down piston impact at stroke terminals, reduce vibration and noise, protect cylinder internal components and connected fixtures.<\/li>\n
      5. Magnetic sensing compatible design: Grooves on the cylinder outer wall allow free installation and position adjustment of magnetic switches to meet diversified stroke detection demands.<\/li>\n
      6. Compact lightweight structure: Miniaturized layout saves installation space inside automated equipment while maintaining stable output force.<\/li>\n
      7. Anti-rust piston rod: Thick hard chrome plating enhances wear resistance and scratch resistance, avoiding rusting under long-term intermittent working conditions.<\/li>\n<\/ol>\n<\/div>\n
        \n

        6. Ten SMC Similar Functional ISO Standard Cylinders<\/h2>\n<\/div>\n
        \n
        These products are all ISO 6432 standard miniature round cylinders from SMC, same series or alternative series for linear reciprocating actuation, varying in bore, stroke and mounting forms:<\/div>\n<\/div>\n
        \n
          \n
        1. CD85N25-25-B: 25mm bore, 25mm stroke, front flange mounted ISO mini cylinder<\/li>\n
        2. CD85N25-75-B: 25mm bore, 75mm stroke front flange standard cylinder<\/li>\n
        3. CD85N20-50-B: 20mm bore, 50mm stroke front flange ISO cylinder<\/li>\n
        4. CD85N32-50-B: 32mm bore, 50mm stroke large thrust flange mounted cylinder<\/li>\n
        5. CD85N25-50: Basic version without flange, basic axial mounting CD85 series cylinder<\/li>\n
        6. CD85N25-50-C: Rear clevis mounting type ISO standard cylinder<\/li>\n
        7. CD85N25-50-R: Rear pivot mounting mini stainless steel cylinder<\/li>\n
        8. C85N25-50-B: Single acting spring return ISO standard cylinder<\/li>\n
        9. CD85KN25-50-B: Anti-rotation piston rod type ISO cylinder for preventing rod spinning<\/li>\n
        10. CD85N25-50S-B: Stainless steel full corrosion resistant version for wet and corrosive environments<\/li>\n<\/ol>\n<\/div>","protected":false},"excerpt":{"rendered":"

          Detailed Product Introduction: New Original SMC CD85N25-50-B ISO Standard Cylinder 1. Product Overview The CD85N25-50-B is an original double-acting pneumatic<\/p>","protected":false},"featured_media":7214,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[95],"product_tag":[],"class_list":["post-7213","product","type-product","status-publish","has-post-thumbnail","product_cat-smc","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nNew Original SMC CD85N25-50-B ISO Standard Cylinder - Autofits<\/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:\/\/atfits.com\/es\/producto\/new-original-smc-cd85n25-50-b-iso-standard-cylinder\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Original SMC CD85N25-50-B ISO Standard Cylinder - Autofits\" \/>\n<meta property=\"og:description\" content=\"Detailed Product Introduction: New Original SMC CD85N25-50-B ISO Standard Cylinder 1. 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