Hydraulics Aluminum Castings

Aluminum Castings for Hydraulics

Since 1957, Watry Industries has set the standard for excellence in aluminum casting, serving leading OEMs and manufacturers across North America. Headquartered in Sheboygan, Wisconsin, Watry is recognized as one of the most advanced and knowledgeable aluminum foundries in operation today.

In the hydraulic equipment industry, precision and reliability are everything. Hydraulic systems operate under extreme pressures, where even minor imperfections can lead to leakage, downtime, or catastrophic failure. Watry Industries delivers the machining accuracy, consistency, and durability hydraulic manufacturers depend on – producing Hydraulics Aluminum Castings designed for leak-tight performance, dimensional stability, and long-term strength.

Through its mastery of permanent mold, semi-permanent mold, traditional tilt pour, and reverse tilt pour aluminum casting, Watry produces components that meet the demanding mechanical and sealing requirements of hydraulic systems. Combined with in-house CNC machining, finishing, and testing, Watry provides a single-source solution that ensures every casting is produced, machined, and validated under one roof for total quality assurance.

image of hydraulics castings being produced at Watry Industries

Advantages of Our Hydraulic Aluminum Castings

Watry Industries designs and produces aluminum castings that deliver exceptional strength, dimensional precision, and leak resistance for high-pressure hydraulic applications. Every casting is machined to exact tolerances and validated through rigorous inspection to ensure long-term reliability.

Key Advantages

  • High-Precision Machining Integration
    Every hydraulic casting is machined in-house using advanced CNC equipment capable of maintaining tight tolerances and consistent surface finishes critical for sealing and performance.
  • Single-Source Manufacturing
    Casting, machining, finishing, and testing are performed entirely within one facility—eliminating vendor variability and ensuring complete process control.
  • Pressure Integrity and Strength
    Watry’s hydraulic components are engineered to withstand the extreme internal pressures found in pumps, manifolds, and valve systems without distortion or leakage.
  • Dimensional Accuracy & Repeatability
    Robotic loading, advanced fixturing, and closed-loop feedback systems guarantee each casting maintains uniform geometry and surface precision.
  • Reduced Lead Times
    Integration of casting and CNC machining streamlines production flow, minimizes handoffs, and ensures faster time-to-market.
  • Corrosion-Resistant, Lightweight Alloys
    Watry’s high-strength aluminum alloys match or exceed the performance of heavier metals while providing natural corrosion protection.

For hydraulic OEMs, these advantages translate into longer-lasting, leak-free, high-pressure systems that deliver consistent performance in the most demanding conditions.

Typical Applications & Capabilities

Watry Industries produces a wide range of Hydraulic Aluminum Castings engineered for strength, precision, and sealing integrity.

Common Hydraulics Components Include:

  • Pump and motor housings
  • Valve bodies and manifolds
  • End caps and covers
  • Fittings, flanges, and adaptors
  • Filter housings and reservoirs
  • Hydraulic cylinder components
  • Structural brackets and supports

Watry’s engineering team collaborates with hydraulic manufacturers to optimize part geometry and ensure proper fluid channeling, dimensional stability, and minimal porosity. Every casting is designed for precision machining compatibility, ensuring critical sealing surfaces and threads meet exact specifications.

Integrated Casting, CNC Machining & Finishing

For the hydraulic industry, machining is where performance is proven. Watry’s fully integrated CNC machining operation ensures every casting achieves the dimensional accuracy, surface finish, and fit required for leak-free hydraulic systems.

Advanced CNC Machining Capabilities Include:

  • (8) DMG Mori NH6300 high-speed horizontal machining centers
  • (7) DMG Mori NHX6300 high-speed horizontal machining centers
  • (7) OKK 800 high-speed horizontal machining centers
  • (5) 400mm–500mm horizontal machining centers
  • (1) CNC turning center
  • (14) High-speed vertical machining centers
  • 6-axis robotic loading of multiple machining centers

Watry’s high-speed horizontal and vertical machining centers are equipped with automated tool changers, custom fixturing, and in-process gauging. This allows for sub-thousandth precision, enabling hydraulic manifolds, valve bodies, and pump housings to maintain critical tolerances that guarantee sealing integrity under pressure.

Because machining and casting teams work side by side, feedback between processes is immediate – reducing setup time, improving repeatability, and ensuring each part meets exact functional requirements before moving to finishing.

Finishing & Coatings for Hydraulic Systems

Watry complements precision machining with advanced finishing and coating options designed to enhance corrosion protection, wear resistance, and cleanliness.

  • Anodizing and Chromate Conversion – Strengthen surface hardness and improve corrosion protection in fluid environments.
  • Powder Coating and E-Coat – Durable finishes designed to withstand exposure to oil, pressure, and vibration.
  • Polishing and Blasting – Achieve smooth, defect-free surfaces to improve sealing and hydraulic efficiency.

Testing & Quality Assurance for Hydraulics Components

Hydraulic systems demand absolute reliability. Watry validates every casting and machined surface through extensive inspection and testing to ensure pressure integrity and dimensional conformity.

Leak and Integrity Testing Methods

  • Helium Leak Testing – Detects micro-leaks in precision-machined hydraulic components.
  • Air Under Water Testing – Identifies visible leaks during submersion testing.
  • Pressure Decay Testing – Measures pressure retention over time for sealing verification.
  • X-Ray Testing – Confirms internal casting integrity and detects porosity that could compromise performance.

Each part must meet strict internal and customer-specific standards before approval—ensuring reliable operation under the continuous pressure cycles typical of hydraulic systems.

Image of Hydraulic Aluminum Castings Components

Why Choose Watry Industries for Hydraulics Aluminum Castings

Since its founding by Nic J. Watry in 1957, Watry Industries has evolved into a 271,800-square-foot facility dedicated to precision, automation, and performance-driven results. For the hydraulic equipment industry, that means one thing: machined quality you can measure.

Industry-Focused Expertise

Watry understands the critical importance of tight tolerances, surface finishes, and sealing accuracy in hydraulic applications. Each casting is designed to support post-machining precision, ensuring no distortion or misalignment under operational loads.

CNC Machining as a Core Competency

Unlike typical foundries, Watry’s machining department functions as an extension of the casting process—not a secondary step. With state-of-the-art DMG Mori and OKK machining centers, robotic automation, and in-line inspection, Watry ensures every hydraulic casting leaves the facility fully machined, fully verified, and ready for installation.

Proven Quality & Integration

Watry’s mission—to reduce production costs, shorten lead times, and eliminate headaches—directly aligns with the hydraulic industry’s need for reliability and speed. By consolidating all operations in one facility, Watry guarantees end-to-end process control, superior dimensional consistency, and repeatable leak-free performance.

For manufacturers in the hydraulic industry, choosing Watry means gaining a partner that combines foundry precision with machining excellence – producing high-pressure components that perform flawlessly in the field.

Get Started with Watry Industries

When your hydraulic components demand tight tolerances, leak-free performance, and exceptional machining precision, trust Watry Industries to deliver.

Phone: (920) 458-5131
Website: www.watry.com
Location: Sheboygan, Wisconsin

Submit an RFQ or contact a Watry expert today to discuss your next hydraulic program. From casting and CNC machining to testing and validation, Watry delivers production-ready hydraulic aluminum components built for strength, reliability, and precision.