Assembly Build Process

Sun's Assembly Build Process allows you to configure a cartridge and manifold, or main stage and pilot stage cartridge, and build a digital assembly in three dimensional space. The resulting output of this process is the assembly product page, including configuration-specific images, symbols, product information and CAD files for download.

The Assembly Build Process can be accessed from either a cartridge or manifold product page. Only valid choices are allowed.

From a manifold page, you must first choose your cartridge function. Once you choose your function, click on the BUILD ASSEMBLY button below the WHERE TO BUY BUTTON. Once clicked, you will be presented with valid cartridges for your manifold. Select the cartridge of your choice and follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

From a cartridge product page, click on BUILD ASSEMBLY and you will be presented with a listing of compatible manifolds. In the case of main stage and pilot stage cartridges, you can either build a cartridge to cartridge assembly or a cartridge to manifold assembly. Once your choice has been made, follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

Please note that the Assembly Build Process is an automated process. It can be utilized at any time. Pages are generated typically within minutes but delays can occasionally be expected. In the event of a delay, a team at Sun will work to resolve the issue to ensure you receive your information as quickly as possible.

Bloc différentiel permanent

Function

Développer

Port Designators [ + ]

Caractéristiques techniques [ + ]

Le bloc différentiel permanent permet de sortir la tige d’un vérin double effet plus rapidement qu’avec le seul débit de la pompe. Pour ce faire, l’huile sortant du coté tige du vérin (CR) est additionnée au débit de la pompe (VH) pour alimenter le coté fond du vérin (CH), ce qui augmente la vitesse de sortie. VR est connecté au côté tige du distributeur .

La capacité de la valve est déterminée par le débit le plus élevé entre le débit de pompe et le débit recyclé sortant du côté tige du vérin.
Cette valve n’empêche pas la sortie du vérin par la charge. La meilleure façon d’empêcher la sortie du vérin est l’utilisation d’une valve d’équilibrage drainée externe montée directement sur le côté tige du vérin. Une valve non drainée ne fonctionnera pas.
Le rapport des sections de vérin idéal pour un circuit différentiel est de 2:1, la section côté fond étant deux fois plus grande que la section annulaire côté tige. Utilisé en circuit différentiel, un vérin de rapport 2:1 a la même vitesse en entrée et en sortie de tige.
Les vérins ayant des rapports de section supérieurs à 2:1 (diamètres de tiges importants) fonctionnent correctement mais avec un gain de vitesse inférieur et peuvent générer une multiplication de pression. La pression côté tige d’un vérin de rapport 2:1 peut être le double de la pression côté fond et doit être limitée.
Les vérins ayant des rapports de section inférieurs à 1,5:1 (diamètres de tiges faibles) nécessitent une attention particulière car plus le diamètre de la tige est faible par rapport au diamètre du piston, plus le débit augmente de façon critique et les forces disponibles diminuent en conséquence.
Il est peu probable que les vérins ayant des rapports de section inférieurs à 1.5:1 fonctionnent correctement en circuit différentiel à cause de la faible section de la tige et du débit important généré.
Lorsqu’un vérin est en mode différentiel, la seule force disponible correspond à la pression exercée sur la section tige.
Le mode différentiel n’est possible que dans le sens sortie de tige du vérin.

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Caractéristiques [ + ]

FAQs [ + ]

Quel est le volume d'une goutte d'huile hydraulique ?

Il y a exactement 15 gouttes Sun dans un centimètre cube.

Why doesn't Sun anodize their aluminum bodies?

Reasons to anodize:

To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion.
Appearance (color). The 2 colors that would appeal to Sun would be blue or black. Unfortunately these are the colors that are hardest to do consistently.
To provide a hard wear surface. Sun does not make parts-in-body valves. The manifold is just plumbing. We don't need a wear surface.
Because everyone else does it. Bad reason.

Reasons to not anodize:

Cost. It's another process.
Logistics. When you make tens of thousands of manifolds a month and you anodize hundreds, it's a problem. Consistency. See above.
Stamping. After a body is anodized you cannot do any more stamping without making a mess.
Inspection. Have you ever tried to look for burrs in a black anodized body? It's the old blackboard factory at night scenario.
Torque. You will experience an increase in breakaway torque when removing items from an anodized manifold.
Fatigue life. This is the best reason to not anodize. Fatigue failure is a very complex phenomenon. What it takes to initiate a crack is difficult to predict. What it takes to propagate a crack is readily defined. Anodizing produces a very thin, very hard, and very brittle surface on aluminum. The first time you pressurize an anodized aluminum manifold you have initiated fatigue cracks. Whether or not the stress is enough to propagate the cracks is a matter of pressure and manifold geometry. Anodizing an aluminum manifold grossly reduces the fatigue life by anywhere from 20% to 50%.

Direct acting, pilot operated, what do I use?

Direct acting valves are used to prevent over pressure and pilot operated valves are used to regulate pressure. If you are unsure, use a direct acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

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Notes [ + ]

Ressources Complémentaires [ + ]

YDEPXCNAL

Configuration

Modifiers	Ports
D, D/S	Ports CH, CR, VR: 3/4" NPTF;
L, L/S	Ports CH, CR, VR: SAE 12;
W, W/S	Ports CH, CR, VR: 3/4" BSPP;

Type de Corps	Montage en ligneMontage en ligne
Capacité	30 gpm120 L/min.
Diamètre des Trous de Fixation	0,42 in.10,7 mm
Profondeur des Trous de Fixation	TraversantTraversant
Nombre de Trous de Fixation	22

YDEP | Solutions » Circuit différentiel | Sun Hydraulics

Assembly Build Process

Assembly Build Process

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Bloc différentiel permanent

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