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Faucet Manufacturing

OEM Faucet Manufacturer in China — Brass Casting, CNC & Custom Tooling

WUGONG is an OEM/ODM faucet manufacturer in Xiamen, China — brass casting for faucet bodies and valve housings, precision CNC machining, surface finishing, and custom mold-making, certified to cUPC, WaterMark and WRAS.

A faucet is a brass-casting and precision-machining problem

A faucet looks simple on a showroom shelf. In production it is a brass-casting, precision-machining, sealing and surface-treatment problem — and most field failures (leaks, cross-flow, rough handle feel, finish defects) are created at the casting and machining stage, not at assembly. WUGONG engineers faucets as a manufacturing system: the casting决定了 wall thickness and porosity, the machining决定了 seal geometry and thread tolerance, and the surface line决定了 whether the finish survives daily use.

Our faucet work runs through the Xiamen sanitary-ware cluster, where the supply chain for brass, electroplating, valve cores and plastic trims is compressed into one region. That compression is what makes short sample loops and stable volume quality possible for OEM and ODM programs.

What we manufacture

  • **Brass faucet bodies and valve housings** — sand and gravity die-cast brass, designed for clean internal waterways and consistent wall thickness.
  • **Precision-machined components** — threads, sealing seats, spool bores and adapter interfaces, finished on CNC lines.
  • **Ceramic disc valve cores** — sourced and validated to match the body geometry, with replaceable-service architecture.
  • **Surface finishing** — polishing, electroplating and PVD, specified against the target market's corrosion and finish standards.
  • **Plastic trims and internal parts** — injection-molded handles, diverters and housings, tooled in-house for confidentiality and revision speed.

Brass casting: where faucet quality is decided

Most faucet warranty costs trace back to the casting. Porosity, shrinkage cavities, uneven wall thickness and inclusions all become leaks or finish defects that only surface after plating — the most expensive possible moment to find them. We treat casting as an engineering decision, not a commodity step.

  • Gating and riser design optimized for sound brass, not just fast cycle times.
  • Wall thickness specified for pressure, thread strength and finish uniformity — not minimum weight.
  • Material control: lead-content options for different markets (standard brass, low-lead and lead-free formulations), with material declarations available.
  • Casting-to-machining handoff reviewed so the machining fixture receives a casting it can actually hold.

CNC machining and sealing geometry

The valve core seat, the spool bore and the thread geometry decide whether a faucet feels precise and seals for years. We hold these on CNC machining lines, with the understanding that a faucet's perceived quality is mostly tactile — handle feel, stop precision, no play.

  • Sealing seats machined to consistent flatness and surface finish for the ceramic disc.
  • Thread classes controlled so installation is repeatable for the brand's installer network.
  • Cross-flow prevention designed into the body and core, not added at inspection.

Surface finishing and corrosion resistance

  • Polishing lines specified to remove casting witness and produce a uniform substrate before plating.
  • Electroplating and PVD specified against target-market corrosion standards (salt-spray hours matched to the certification the brand is aiming for).
  • Process control on layer thickness and adhesion, because finish warranty claims are the second-most-common field issue after leaks.

Certifications and market access

Faucet programs are certified against the standards of their target markets. We work to:

Certification is treated as an architecture decision: the material declaration, the flow-path design, the marking space and the test envelope are planned before tooling, not bolted on at the end.

  • **cUPC** — North American plumbing code.
  • **WaterMark** — Australian plumbing certification.
  • **WRAS** — UK water regulations.
  • **WaterSense** — EPA water-efficiency, for low-flow programs.

OEM, ODM, private label, or custom engineering

  • **OEM** — you bring the full design; we manufacture to your drawings and spec.
  • **ODM** — adapt one of our platform geometries cosmetically and functionally for faster launch.
  • **Private label** — minimal change to an existing product for the fastest market entry.
  • **Custom engineering** — co-development when you need differentiated brass geometry, sealing or flow performance but do not carry a full faucet engineering team.

Engineering evidence and the next step

For faucet programs we can show the brass and machining capability, the surface line, the valve-core validation approach, and the certification scope. The strongest way to evaluate a faucet manufacturer is to ask for the artifact behind each claim — a material declaration, a machining capability list, a finish-corrosion test plan.

Contact us at **sales@xm5e.com** with your faucet category, target market, and certification needs, and we will scope the OEM/ODM path. See also our manufacturing capabilities and brass & copper casting notes.