Many industrial machines using compressed air as an energy source, use air cylinders or other pneumatic actuators to do the actual work.
That means when the air valve changes and air flows to the cylinder, the cylinder piston and rod moves extremely fast. A high-speed cylinder rod might not be best for your application, and you’ll want to decrease the speed and the impact.
One easy method of controlling the speed of an air cylinder is installing flow controls from the air lines between the valve to the air cylinder, in the air ports themselves, or even in the exhaust vents of the air valve, though the latter is least desirable. If you want to buy Wind cylinder visit http://www.srwinner.com/index.php?lang=th (which is also known as “ เยี่ยมชมกระบอกลม http://www.srwinner.com/index.php?lang=th ” in Thai language )
In the ‘valve exhaust,’ type flow control the controls themselves may be far enough away from the cylinder that the piston and rod may have traveled the full stroke until the exhaust flow control can start back-pressuring the line to slow the cylinder. Cylinder control reaction time is always negatively affected based on the distance from the cylinder to the flow controller. Rather than this, get more additional info about electric actuator via http://www.srwinner.com/index.php?lang=th .
Some peoples opt for needle valves to throttle the flow of air into and out of the air cylinder, thereby reducing its speed. The problem with using a needle valve to control the rate of an air cylinder is that it throttles the compressed air flow evenly in both directions.
If you’re using a larger cylinder, by squeezing the air into the cylinder, you are really avoiding the smooth cylinder stroke needed. As air pressure builds in the cylinder it will reach the point where it overcomes the friction of the piston and rod seals and the piston will start to move.