SUN HYDRAULICS
WQK

$152.00 USD

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SUN HYDRAULICS
Material:WQK
Summary:Manifold

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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 WQK (Material Number: WQK) is a motor mount manifold designed to facilitate control and protection of hydraulic motors. This model features a Danfoss OMS interface, allowing for seamless integration with compatible systems. The body of the WQK includes a cross pilot on B with shuttle, optimizing its performance in various hydraulic applications. It is constructed with open cavities, specifically the 11Cavity T2A configuration, and utilizes SAE 10 port sizes for efficient fluid flow management. The manifold is crafted from 6061T651 aluminum, known for its strength and excellent corrosion resistance, making it suitable for demanding environments. However, it is important to note that the manifold should not be used in systems exceeding pressures of 3000 psi (210 bar), as aluminum manifolds are not rated beyond this threshold. The design does not incorporate anodizing due to considerations such as cost, logistics, consistency issues, and potential impacts on fatigue life. This product is particularly suited for applications requiring reliable motor mounting solutions where control precision and durability are critical. Its construction supports efficient hydraulic operations while maintaining integrity under specified pressure conditions.

Description

Body Type	Motor mountMotor mount
Interface	Danfoss OMSDanfoss OMS
Body Features	Cross pilot on B with shuttleCross pilot on B with shuttle
Open Cavities	11
Cavity	T-2A
Port Size	SAE 10SAE 10

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 HYDRAULICSWQK

Additional Resources

SUN HYDRAULICS
WQK