The standard DIN 24554 recommends a size of threading by diameter of piston, this size assuring the full transmission of the dynamic strengths within the framework of the standard. For the biggest stalk by diameter of piston, the standard ISO 6020/2 also plans the second threading, bigger. Sizes of threading deviating from DIN 24554, from tappings, surlongueur of threading or stalk are also available. Attention: by choosing one diameter of threading lower than the standard, the acceptable maximal pressure can be reduced; for a diameter of threading upper to the standard, the possibility of assembly of the stalk in the jack must be respected. The use of a tip with throat "T" according to NF / ISO 6020/2 implies a limitation of pressure.
The housing of joints answers the standard ISO 5597 for the seals of stalk of type "M", to ISO 7425-1 for all the types of joint of piston and to ISO 6195-C for all the racleurs. The joints of type "M" contain The housing of joints answers the standard ISO 5597 for the seals of stalk of type "M", to ISO 7425-1 for all the types of joint of piston and to ISO 6195-C for all the racleurs. The joints of type "M" contain a racleur resisting to the hydrolysis. They can be used in superior speeds when the pressure is lower than 100 bar and the frequency lower than 3 Hz.
Jacks with long running are rather equipped with joints of type "M".
General information on pneumatic jacks:
With the compressed air as the source of energy, the pneumatic technique is not only very general-purpose but also very flexible. She allows for example to master in a safe and reliable way the tasks of tightening, preservation and transport. The integration of the microelectronics with the shape of sensors, commands or universal interfaces, allows to realize solutions system of big efficiency.
We find pneumatic jacks in domains highly varied such as the automation, the Automobile