The first question to ask is what is the purpose of a buffer? The buffer is to remove excess force from the cylinder and make it slow to a stop. After understanding this, it can be found that the buffer is actually not necessary, and the hard limit can be used to stop the cylinder,
but at this time you will hear the harsh collision sound, and the collision impulse is large, and the time is long, which will lead to cylinder damage and reduce the service life. In addition, some cylinders come with a buffer that can not be buffered.
Generally, the throttle valve is used first to control the intake and outlet air flow, adjust the speed of the end of the cylinder, and slow down the end of the cylinder.
If the beat (speed) requirements are relatively high or need to fine tune the cylinder stroke, the buffer is used, and the buffer is mostly used with the cylinder with the guide rail (slide rail) or the slide cylinder.
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