Method of selecting pneumatic devices

A method of selecting pneumatic devices, wherein data concerning pneumatic actuators, solenoid-controlled selector valves, drive controllers, pipes, pipe joints and exhaust treatment devices is stored in a pneumatic actuator database, a solenoid-controlled selector valve database, a drive controller database, a pipe database, a pipe joint database and an exhaust treatment device database, respectively, for each item number, and conditions required for pneumatic devices constituting a system are calculated, and then pneumatic devices conforming to the calculated conditions are selected from the respective databases, said method comprising:

• the first step of selecting a pneumatic actuator satisfying a load condition, a strength condition and a speed condition from the pneumatic actuator database on a basis of a calculation according to a basic equation;
• the second step of selecting a solenoid-controlled selector valve and an exhaust treatment device, each of which satisfies a discriminating formula concerning the speed condition, from the solenoid-controlled selector valve database and the exhaust treatment device database, respectively;
• and
• the third step of selecting a drive controller, a pipe and a pipe joint, each of which satisfies a discriminating formula concerning the speed condition, from the drive controller database, the pipe database and the pipe joint database, respectively.