1、 The size representation of the NORGREN cylinder is actually very simple: 20 represents the cylinder diameter (millimeters), 80 represents the stroke (millimeters), and s is the installation method code. This labeling method is like a size label on clothes, directly telling you the key parameters. The cylinder diameter determines the output size, and the stroke affects the range of motion.
2、 What is the diameter of a 20mm cylinder? 1 inch=25.4 millimeters, so 20 millimeters is approximately 0.79 inches. However, the cylinder industry is accustomed to using millimeters for labeling, and it is more convenient to directly label it as 20mm. Attention when purchasing: There may be slight differences between different brands, and it is recommended to confirm specific parameters.
3、 Practical selection suggestions
Choosing a NORGREN cylinder cannot be based solely on size:
Load matching: Calculate the required cylinder diameter based on the working pressure
Space limitation: Long distance travel requires consideration of installation space
Speed requirement: The longer the journey, the longer the exercise time is usually
Environmental factors: High temperature or corrosive environments require special materials
1、 Determine cylinder diameter and stroke from cylinder model
1. Interpretation of Norgren Cylinder
The NORGREN cylinder model is generally composed of multiple characters and numbers, including certain information such as cylinder diameter, stroke, piston rod diameter, etc.
Among them, SC represents the type of cylinder, 100 represents the cylinder diameter in millimeters, and 200 represents the stroke in millimeters.
2. Cylinder parameter table
The parameter table of a cylinder generally lists detailed parameters of the cylinder, including cylinder diameter, stroke, etc., and also includes corresponding units and tolerances. The size of the cylinder can be determined by querying the cylinder parameter table.
3. Measure the diameter and stroke of the Norgren cylinder
If the parameter table of the cylinder cannot be found, some simple tools and techniques can be used to measure the cylinder diameter and stroke.
For the measurement of cylinder diameter, a vernier caliper or a micrometer can be used for measurement. Firstly, place the vernier caliper or micrometer at the diameter of the cylinder, then gently rotate the caliper or micrometer until the reading stabilizes, and the diameter of the cylinder can be obtained. To reduce errors, multiple measurements need to be taken at the same location.
For measuring travel, a long ruler or rangefinder can be used for measurement. First measure the maximum length of the cylinder, then push the piston into the cylinder and measure again. The difference between the two measurements is the stroke of the cylinder.
2、 Several tools and techniques for accurately measuring the size of Norgren cylinders
1. Vernier caliper
Vernier caliper is one of the widely used manual measuring tools in engineering surveying. It has a wide range of applications and can measure various sizes such as inner diameter, outer diameter, depth, height, etc.
2. A micrometer is a measuring tool used for precise measurement of length, depth, gap, and parallelism. Usually used in fields such as automotive maintenance, quality inspection, and mechanical processing.
3. Long rulers are mainly used to measure larger items, usually used in woodworking, home decoration and other fields.
4. A rangefinder is a high-precision measuring instrument that measures the distance of a target through the transmission and reception of a beam. Usually used in fields such as civil engineering and building surveying.
【 Conclusion 】
Through the above methods, we can easily determine the cylinder diameter and stroke of the NORGREN cylinder and select suitable cylinder accessories. It should be noted that when measuring, multiple tools should be used as much as possible to minimize errors and ensure measurement accuracy.