SUN HYDRAULICS
E8J

$238.70 USD

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SUN HYDRAULICS
Material:E8J
Summary:Manifold

Quantity in stock: 0

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics E8J (Material Number: E8J) is a line mount manifold designed for hydraulic systems requiring a two-cylinder sequence operation with reverse checks. This model features an interface-free body type and is built to accommodate two open cavities, specifically using the T-11A cavity configuration. The manifold's construction includes SAE 8 port sizes, ensuring compatibility with standard hydraulic systems. It has a mounting hole diameter of 0.34 inches (8.6 mm) and provides through-hole depth for easy installation, with two mounting holes available for secure attachment. The E8J manifold is crafted from 6061T651 aluminum, chosen for its strength, affordability, machinability, availability in various forms, and excellent corrosion resistance. Although this material is not anodized by Sun Hydraulics\u2014due to potential issues such as increased cost, logistical challenges, stamping difficulties post-anodization, and reduced fatigue life\u2014it remains highly durable under typical operating conditions. This manifold is suitable for applications that require precise control over hydraulic fluid flow in multi-cylinder operations. Its design ensures reliable performance by allowing sequential control of two cylinders while preventing backflow through integrated reverse checks. Users must consider the maximum system pressure when implementing this manifold; it should not exceed 3000 psi (210 bar) due to the limitations of aluminum construction regarding pressure tolerance. Overall, the Sun Hydraulics E8J model offers robust functionality for hydraulic systems needing efficient sequence control within specified pressure limits.

Description

Body Type	Line mountLine mount
Interface	NoneNone
Body Features	2 cylinder sequence, with reverse checks2 cylinder sequence, with reverse checks
Mounting Hole Diameter	.34 in.8.6 mm
Mounting Hole Depth	ThroughThrough
Mounting Hole Quantity	22
Open Cavities	22
Cavity	T-11A
Port Size	SAE 8SAE 8

Show FAQ

How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Why does Sun use 6061 aluminum?	6061-T651 is relatively strong, relatively inexpensive, difficult to machine, readily available in all shapes and sizes and very corrosion resistant. 2024 is stronger and machines beautifully, but is expensive and falls to pieces in a corrosive environment.
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%.

Additional Resources

Notes:

Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.

SUN HYDRAULICSE8J

Additional Resources

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E8J