::: CMO - Oleodynamic, hydropneumatic equipments :::

AS A CYLINDER IS CHOSEN

The program of production of the CMO ‘s cylinders is based on innovative technologies and on a long experiences in the high pressure hydraulic.

The select materials for the joining as well as the treated surfaces and protected against the corrosion guarantee the duration along the time of the CMO ‘s cylinders

COMPOSITION OF A CYLINDER:

Cylinder body and piston

cylinder body and piston are realized in chromed high resistance steel, conferring to the parts a remarkable wear and corrosion resistance; this allows the open air or very aggressive employment.

Ferrule

The ferrules are projected and built with particular materials and in relationship to the application of pistons employ

The scraper

The scraper ring prevents the entry of impurity and prolongs so the cylinder life.

Returning spring

The spring in appropriate dimensions allows a speed return of the piston independent from the position of the cylinder.

Resistance element

The compact gasket type offers a good resistance to the abrasion and the extrusion.

Push head

The push head in high resistance steel eliminates possible risks of shaft deformation.

Speedy joint

the speedy connection joint, assembled as standard on all the cylinders, it is complete of dust hood.

For the correct choice of a cylinder some details are essential as following:
• Stroke
• Strength
• Closure height

and some additional details as:
• Volume of required oil
• Operation speedy

Then the choice should be completed with the type of return:

Gravity return: in which the weight of the lifted load determines the piston re-enter. The least power application for the return is approximately 0,2% of the nominal value of cylinder push . These cylinders constitute the most economic solution in case of sporadic employ where operation requirement for the cylinder releasing is not a problem. These belong to the typology of cylinders built on buyers application.

spring return, in which a spring, lodged inside the cylinder and put in tension by the piston, furnishes the re-enter power; they are to prefer them if, in an occasional employ, you want however to release quickly the cylinder. All Cmo’s cylinder inside catalogue belong to this typology.

Oil return, in which the re-enter is hydraulically gotten, pumping oil in the cylinder returning room. This solution allows to have a speedy re-enter, preferable in case of repeated actions such as in small production series. In case of lifting, the employment of cylinders of this class also allow to check the descent under charge with a circuit endowed with restraint valve piloting and regulating of unidirectional flow. The return pressure can be regulated to a lower value when you need only to re-enter the piston; these belong to the typology of cylinders built on buyers application. You can operated with the maximum pressure of exercise on both sides when it also is necessary to develop a traction force. In such case the cylinders are endowed with suitable thread or connections.

Comparative pistons chart