Expert Die Casting Service for Custom High-Performance Sanitary Ware

What Is Die Casting?

Die casting is a precision manufacturing process in which molten non-ferrous metals—most commonly aluminum, zinc, or magnesium—are injected into hardened steel molds under high pressure to produce near-net-shape components with tight tolerances and superior surface finish. The rapid solidification inside the die enables the formation of complex geometries, thin walls, and consistent dimensional accuracy, making the process highly suitable for high-volume production. In the sanitary and plumbing sector, die casting is widely used to manufacture structural and decorative parts for shower heads, faucets, toilet seat hardware, and other bathroom accessories, where strength, corrosion resistance, and high-quality appearance are critical. This process delivers excellent repeatability, cost efficiency, and cosmetic quality for premium bathroom products.

Advantages of Die Casting

Complex Geometry

Die casting enables the production of custom sanitary parts and bathroom components with thin walls and intricate designs while maintaining dimensional stability.

Strength

Metal die castings offer superior strength and high-temperature resistance compared to plastic parts. Aluminum, in particular, provides an excellent strength-to-weight ratio.

Precision

Standard tolerances range from ±0.003″–0.005″ per inch, with tighter tolerances of ±0.001″ achievable for complex designs and specific materials.

Custom Finishes

Die cast parts can be finished with smooth or textured surfaces, plating, or paint to enhance aesthetics, durability, and corrosion resistance.

Die Casting Materials for Bathroom Hardware

Aluminum Alloys

Aluminum is the most widely used material in die casting for shower heads, faucets, toilet seat parts, and other bathroom accessories due to its outstanding balance of strength, weight, and corrosion resistance. Aluminum die castings provide excellent thermal conductivity, high dimensional accuracy, and superior machinability, making them ideal for both structural and decorative bathroom components. In addition, aluminum is fully recyclable, supporting sustainable manufacturing.
Common aluminum die casting grades we supply include A360, A380, A383 (ADC12), and A413, all selected for their reliability in high-volume, precision production.

Zinc Alloys

Zinc alloys are preferred when tight tolerances, fine surface detail, and premium cosmetic finishes are required for bathroom hardware. Their excellent fluidity and low melting point enable the production of complex, thin-wall parts with exceptional dimensional stability, making them ideal for faucet bodies, shower brackets, toilet seat hinges, and decorative bathroom accessories. Zinc alloys also offer high hardness, impact strength, and easy plating for chrome or specialty finishes.
We work with a full range of industry-standard zinc die casting alloys, including Zamak 2, Zamak 3, Zamak 5, Zamak 7, ZA-8, ZA-12, and ZA-27, to match specific performance and finishing requirements.

Available Die Casting Surface Finishes

High-Standard Quality Control for Die Casting

We enforce rigorous QC across every die-cast run for shower heads, faucets, toilet seat parts, and other bathroom accessories, starting with incoming material verification and tool try-out validation. Parts undergo dimensional inspection (CMM), porosity checks (X-ray/CT where required), mechanical and surface tests (hardness, plating adhesion, salt-spray), and functional/pressure testing for wet-service components. Every batch is traceable with documented inspection reports, PPAP/PPF samples on request, and full conformity to ISO/IATF quality protocols to ensure reliable performance and consistent cosmetic quality for sanitary applications.

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Design & Development
End-to-end product engineering for the custom bathroom industry — concept refinement, DFM, tolerance analysis, and rapid prototyping to ensure your sanitary-ware designs are manufacturable, cost-optimized, and ready for scale.
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Mold Development
Precision mold design and fabrication tailored for sanitary-ware applications, delivering durable, high-accuracy tooling that supports long production runs and consistent part quality.
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CNC Machining
High-precision CNC services for complex components and mold inserts used in faucets, shower heads, and valves — enabling tight tolerances and repeatable performance across sanitary-ware product lines.
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Plastic & LSR Injection Molding
In-house plastic and liquid silicone rubber injection capabilities optimized for sanitary-ware parts, providing material flexibility, tight dimensional control, and scalable production for custom bathroom components.
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Die Casting
Professional die casting for metal sanitary-ware components, offering excellent strength, surface finish, and dimensional stability for faucets, valve bodies, and metal fittings.
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Surface Finishing
Advanced decorative and protective finishes specifically for bathroom fixtures — PVD, chrome plating, and high-performance coatings that meet both aesthetic and corrosion-resistance demands in the custom bathroom industry.
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Product Assembly
Controlled assembly and final testing of sanitary-ware products, including functional testing and packaged deliveries, to guarantee ready-to-sell assemblies that meet brand and regulatory expectations.
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Assembly & Package
Integrated assembly and custom packaging services for complete sanitary ware products. We provide a one-stop solution from component integration to final boxing, ensuring functional custom assemblies and retail-ready presentation that meets your brand specifications for OEM partnerships in the bathroom industry.

Why Choose Our Die Casting Service

In-House Manufacturing

Our automated facility supports custom shower heads, faucets, toilet seat parts, and other bathroom accessories, giving us full control over tooling, production speed, and scalability.

Certified Quality Control

With ISO 9001:2015 and IATF 16949 systems, we run multi-stage inspections from raw material to final shipment, with PPAP, CMM reports, and surface validation for every project.

Efficient Prototyping

Low-cost tooling and production-grade alloys allow fast, accurate prototypes to validate design, fit, and finish before volume production.

DVT, PVT & Mass Production

We support DVT/PVT, pilot runs, and full-scale manufacturing with stable processes and statistical controls to ensure consistent quality at any volume.

 Ready to enhance the durability and quality of your metal components? Schedule a consultation with our die casting specialists to discuss how our rapid tooling and production capabilities can bring strength and precision to your next sanitary ware project.

Explore Our Product Categories

Discover our diverse range of high-quality shower heads,faucets,toilet seat and accessories,designed to meet the custom needs of every style and budget.