| Cylinder specification | Light duty | Medium duty | Heavy duty | ||||
|---|---|---|---|---|---|---|---|
| Pressione | Max | 350 bar | 5000 psi | 500 bar | 7500 psi | 700 bar | 10000 psi |
| Normal | 160 bar | 2300 psi | 250 bar | 3600 psi | 400 bar | 6000 psi | |
| Working | No pressure peaks | Intermittent pressure peaks | Regular pressure peaks | ||||
| Design | Lower operating stresses. Rigid well aligned mounting. Minimal side loading. | Steady operating stresses with intermittent high stress. Some side loading. | High stressed for majority of its working life. Side loading common. | ||||
| Condition of fluid | Good system filtration no cylinder contamination likely. | Good system filtration but some cylinder contamination likely. | Contamination unavoidable from internal and external sources. | ||||
| Working environment | Clean and inside a building. Operating temperature variations limited. | Mixture of indoor and outdoors but some protection from the weather. | Outdoors all the time or a dirty indoor area. Wide variations in temperature, both ambient and working. Difficult service conditions. | ||||
| Usage | Irregular with short section of stroke at working pressures. Regular usage but at low pressure. | Regular usage with most of the stroke at working pressure. | Large amount of usage at high pressure with peaks throughout the stroke. | ||||
| Tipiche applicazioni | Machine tools Lifting equipment Mechanical handling Injection moulding machines Control and robot equipment Agricultural machinery Packaging equipment Aircraft equipment Light duty tippers | Heavy duty lifting equipment Agricultural equipment Light duty off-road vehicles Cranes and lifting platforms Heavy duty machine tool Injection moulding machines Some auxiliary mining machinery Aircraft equipment Presses Heavy duty tippers (telescopic) Heavy duty mechanical handling | Foundry and metal fabrication plant Mining machinery Roof supports Heavy duty earth moving machinery Heavy duty off-road vehicles Heavy duty presses | ||||
Grazie ai molti anni di esperianza su applicazioni oleo-idrauliche, supportati dai risultati di un ampio programma di test, possiamo sostenere che sia necessario collegare le tre caratteristiche operative principali di velocità, pressione e temperatura per ottenere prestazioni di tenuta soddisfacenti.
Dopo aver valutato attentamente ogni prodotto, siamo in grado di specificare la velocità massima, la pressione e un intervallo di temperatura entro il quale la tenuta funzionerà in sicurezza. Se le condizioni operative non sono conformi a quelle consigliate, la invitaimo ad inviare dettagli all’ufficio vendite Hallite locale.
