In the face of air pneumatic cylinder component selection, many small white will be based on a lot of previous experience to select. The specific algorithm may involve not much, the following for the primary cylinder selection to do a simple introduction.
The selection process describes as:
selection of action mode, according to the load weight calculated cylinder diameter, according to the actual situation to select the stroke, according to the size of the space selection cylinder series, selection of cylinder installation, selection of cylinder induction switch, selection of other accessories cylinder.
Determine the load size, including the total weight of the workpiece, installation accessories, etc.; Select the pressure of the air source, use the formula F = PS, calculate the area, and further calculate the diameter of the cylinder, at this time to use the principle of selecting large and not small, try to choose a larger cylinder. (Because there is also the effect of load rate in practical applications)
After selecting the cylinder bore and stroke, the installation method should consider and the corresponding installation accessories. If there are precision requirements during operation, it is necessary to consider whether to use cylinders with bearings, with slide rails, etc. And if there requires multiple controls, then need to use multi-position cylinders.
If the site temperature is high, you need to consider using high-temperature type cylinders. The high temperature resistance of the cylinder mainly determines by the seal of the cylinder. The seal of the ordinary cylinder is mainly NBR or TPU. The maximum temperature can only reach 70 degrees Celsius. If this temperature is above, you need to choose the seal of the fluorine rubber material.
There is also a problem that is easily overlooked. It is a slight lateral force. The cylinder cannot have lateral force. If there is some slight lateral force, it can be overcome by using joint bearings, floating joints and other connection accessories.
Lots of industrial equipments utilizing compressed air as a power resource, usage air cylinder pneumatic or other pneumatic actuators to do the actual work.
Compressed air is ‘explosive’ as it moves from high pressure to reduced stress on it’s back to ambience. That implies when the air shutoff changes and also air flows to the air cylinder pneumatic tube, the air cylinder pneumatic piston and pole moves extremely swiftly. A broadband air cylinder pneumatic tube pole might not be best for your application, and also you will certainly want to lower the speed and also the effect.
One very easy technique of controlling the rate of an air cylinder pneumatic tube is installing circulation controls airborne lines between the valve to the air air cylinder pneumatic pneumatic, in theair cylinder pneumatic ports themselves, or perhaps in the exhaust ports of the air valve, though the latter is the very least preferable.
In the ‘shutoff exhaust’ kind circulation regulate the controls themselves may be far enough far from the cyndrical tube that the piston and also rod may have taken a trip the full stroke before the exhaust circulation control can start back-pressuring the line to slow down the cyndrical tube. Cyndrical tube control reaction time is always adversely influenced relying on the range from the air cylinder pneumatic to the flow control.
Some individuals go with needle valves to throttle the circulation of air into as well as out of the air air cylinder pneumatic pneumatic, thereby minimizing it’s rate. The trouble with making use of a needle valve to regulate the rate of an air air cylinder pneumatic pneumatic is that it strangles the pressed air flow equally in both directions.
If you are utilizing a bigger air cylinder pneumatic, by throttling the air into the air cylinder pneumatic, you are really avoiding the smooth cyndrical tube stroke preferred. As air pressure builds in the air cylinder pneumatic it will reach the factor where it gets over the friction of the piston as well as pole seals and also the piston will certainly begin to relocate. As it relocates, it raises the volume of the air room inside the air cylinder pneumatic behind itself.
The rule of thumb for utilizing a circulation control to minimize as well as smooth air cyndrical tube piston traveling is to only strangle the exhaust air from the air cylinder pneumatic. The air streaming right into the cyndrical tube port must never ever be reduced.
How is this achieved?
Utilize a “air cylinder pneumatic flow control”. This is a tool that may not look any various from the needle valve. Inside, nevertheless, there is a “needle bypass” which permits the air to bypass the needle which is throttling the air achieving complete circulation of air unidirectionally.
The “totally free flow” of pressed air with the cyndrical tube flow control permits the system, when it’s mounted in the correct positioning, to offer un-throttled and also full inrush of air to the cyndrical tube, yet, when the shutoff has actually shifted as well as the double-acting air air cylinder pneumatic pneumatic has reversed, the air that is currently spurting of the air cylinder pneumatic is throttled to the degree needed to achieve the air cylinder pneumatic rate desired.
There will be a second air cylinder pneumatic circulation control on the various other line as well, as well as this functions precisely the same way.
Consequently, air flow into the air cylinder pneumatic ports at either end of the cyndrical tube is absolutely unencumbered giving high-force piston motion. The piston is attempting to go fast as well as at full power, yet since the exhaust flow of air is restrained by the cyndrical tube flow control, the piston relocates with full power, however at a controlled as well as desired rate.
Many air cylinder pneumatic circulation controls will certainly have a schematic on the side showing the flow paths to guarantee that they are installed appropriately.
Some air cylinder pneumatic flow controls are equipped with sealer layered male threads for screwing right into the air cylinder pneumatic port, as well as with an “immediate” kind fitting into which the cyndrical tube air line can be promptly fitted, attributes that conserve money and time.
That means when the air valve shifts and also air streams to the air cylinder pneumatic, the air cylinder pneumatic piston as well as rod moves exceptionally promptly. If you are utilizing a larger air cylinder pneumatic, by throttling the air into the air cylinder pneumatic tube, you are in fact stopping the smooth air cylinder pneumatic tube stroke preferred. As air stress builds in the air cylinder pneumatic it will certainly reach the point where it overcomes the rubbing of the piston as well as pole seals and the piston will certainly start to move. As it moves, it raises the volume of the air room inside the air cylinder pneumatic behind itself. Utilize a ” air cylinder pneumatic tube flow control”.