Common ISO 15552 pneumatic cylinders include DNC, SE, SI, DNG, SG, C96, CP96 series air cylinders, most of their mounting accessories can be interchangeable. ISO 15552 cylinder has stable performance, smooth operation and high output force, needless additional lubricating oil.
For most of ISO 15552 air cylinder, there is a magnetic ring on the piston of cylinder, which is used to be detected by reed switch to control the position of cylinder movement.
There is a mounting groove on the cylinder tube of the ISO cylinders, which is very convenient to install reed sensor switches without additional mounting brackets.
ISO 6431 is the earliest set of cylinder size and performance specifications developed by the International Organization for Standardization (ISO), applicable to rodless cylinders. It standardizes the cylinder diameter, stroke, installation dimensions, and interface standards, ensuring interchangeability and compatibility of products from different manufacturers.
ISO 15552 is an upgrade and expansion of ISO 6431, providing a wider range of cylinder diameters and stronger performance.
For most cylinders that comply with the ISO 15552 standard, there is a magnetic ring on the piston that is used to detect the magnetic ring through a magnetic spring switch, thereby controlling the position of the cylinder movement. The cylinder barrel of the ISO standard cylinder is equipped with installation slots, which facilitate the installation of magnetic spring switches without the need for additional installation brackets. ISO 6431 cylinders are widely used in fields such as mechanical manufacturing, automated production lines, and industrial robots.
According to the ISO 6431 standard, air cylinder diameters typically range from 12mm to 100mm, with a flexible selection of maximum stroke length. The standard also specifies the dimensions of the air cylinder end cap, piston rod, and air interface position to ensure the ease and reliability of cylinder installation. Its structural design balances durability and lightweight, making it suitable for various industrial environments.
The ISO 6431 cylinder has a unique size chart that can help engineers quickly select and design installation plans for the cylinder. The typical size table includes key parameters such as cylinder diameter, cylinder body length, installation hole spacing, and piston rod diameter. Through these standard dimensions, customers can easily verify whether the equipment space and performance requirements are met.
ISO 6431 was first published in 1983 as ISO 6431:1983. Then it was revised in 1992 as ISO 6431:1992. In 2004, ISO 6431:1992 was withdrawn and replaced by ISO 15552:2004. The latest version is ISO15552:2018.
Now all manufacturers basically use ISO 15552 to replace the original ISO 6431 standard. But some factories and users are still using the ISO 6431 cylinder standard. Essentially, they are not much different. It's just that ISO 15552 is more complete in detail than ISO 6431.
ISO 6431 cylinders are pneumatic actuators that use compressed air to propel the piston back and forth. When air enters one end of the cylinder, it pushes the piston rod to extend, and when the air is released, the piston rod retracts. The cylinder has a simple structure, rapid response, and is suitable for high-speed and frequent mechanical actions.
ISO 6431 cylinders support multiple installation methods, such as flange installation, threaded installation, side brackets, etc. Different installation methods meet the needs of different mechanical structures, ensuring the stability and reliability of the cylinder during operation. Choosing the appropriate installation method can also reduce equipment vibration and extend cylinder life.
During installation, attention should be paid to aligning the axis of the cylinder to avoid damage to the piston rod caused by lateral forces. The gas source pipeline should be kept unobstructed and well sealed to prevent gas leakage from affecting cylinder performance. It is recommended to install buffer devices and dust covers to protect the cylinder from normal operation in harsh environments.
◆ Working pressure: 0.1~1.0MPa
◆ Ambient temperature: -20~80℃
◆ Applicable fluid medium: Compressed air, non-corrosive gas
◆ Operating speed: 30-800mm/s
◆ Applicable reed switch types: CS1-M, CS1-U series, etc.
Fescolo provide ISO 6431 cylinder and ISO 15552 cylinder, and choose the appropriate cylinder based on the specific application.
Although Airtac Standard cylinders prioritize cost-effectiveness, when selecting ISO cylinders, it is also necessary to consider the actual working conditions, load size, and motion speed comprehensively, and determine the cylinder diameter and stroke. The cylinder diameter determines the output force, and the stroke meets the working distance. Suitable installation methods and sealing materials need to be selected based on the installation space and working environment. Professional selection can significantly improve equipment efficiency and service life. Compared to the standard ISO 6431, the DNC series ISO 6431 air cylinder has a compact structure, magnetic switch slots, lower load capacity, and mostly short to medium stroke, making it suitable for applications in small automation equipment and assembly lines.
As an upgraded version of 6431, the ISO 15552 cylinder has a wider cylinder diameter and stronger performance, both of which belong to the structural design with piston rods. Compared with the DNG series ISO 15552 cylinder, the SI series ISO 15552 cylinder has lower load and is suitable for heavy-duty assembly lines, robot arms, and packaging machinery; The DNG series ISO 15552 cylinder has a more flexible piston rod, stronger load capacity, and is suitable for chemical equipment, heavy industrial machinery, and harsh working conditions applications. Both types of ISO 15552 cylinders belong to the long stroke category.
ISO 15552 is an upgrade and extension of the international standard ISO6431, mainly applicable to cylinders with piston rods. ISO 6431 cylinders have a more compact structure and lower pressure resistance than ISO 15552 cylinders, making them more suitable for situations with limited space. ISO 15552 cylinders are commonly used for heavy-duty and long stroke applications, with stronger sealing performance. The following is an introduction to the characteristics and applications of ISO 15552 cylinder：
◆ ISO 15552 standard cylinder adopts double Y-ring sealing structure, reliable sealing
◆ High output force, low starting pressure
◆ Smooth operation, no need for additional lubricating oil
◆ Adopt square cylinder, high strength resistance, no tie rod,
◆ Good corrosion resistance
◆ long working life
◆ The front and rear covers are equipped with air cushioning, which is convenient to adjust the moving speed of ISO 6431 cylinder
◆ Interchangeable with all ISO 15552, ISO 6431 standard cylinders in installation and use
The ISO 15552 Pneumatic Cylinder is widely applied across various industries and fields, especially in environments requiring efficient, reliable, and durable pneumatic actuators. Here are some typical application areas:
◆ Automation Production Lines
In automation, the ISO 15552 Pneumatic Cylinder is commonly used in robotic arms, assembly systems, and handling devices. Its standardized design ensures compatibility with various automation equipment, enhancing production efficiency.
◆ Automotive Manufacturing
In automotive production, the ISO 15552 Pneumatic Cylinder is employed in body assembly, painting, and inspection operations. These cylinders offer long service life and durability, meeting the high demands of the automotive industry.
◆ Mining and Heavy Machinery
Due to its excellent performance and ability to withstand high pressures, the ISO 15552 Pneumatic Cylinder is frequently used in mining machinery, heavy equipment, and other industrial environments with demanding requirements.
Compared to SMC standard cylinders, ISO standard cylinders have better versatility, are easy to repair and replace, and are suitable for rapid on-site processing.Regular inspection of iso standard cylinder seals and lubrication condition is key to extending their lifespan. Keep the air source clean and prevent impurities from entering the cylinder interior. Regularly replace the sealing ring and lubricating oil according to the frequency of use to prevent cylinder action from jamming or leakage. Good maintenance habits can effectively prevent production downtime.
If there is slow cylinder movement, gas leakage, or bent piston rod. We need to check the pressure and sealing status of the gas path to confirm the stability of the gas source. Then check if the installation is correct to prevent foreign objects from blocking the movement of the piston.
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