Premium architectural, bathroom, and custom metallic hardware manufactured through advanced die-casting processes.
Ningbo Huazhu Precision Machinery Co., Ltd. (originally established as Tiezhu Hardware Factory) is a premier manufacturer specializing in high-precision die-castings and surface treatments. Over more than a decade of technical refinement, our operations have scaled to incorporate the entire vertically integrated industrial pipeline.
By keeping mold-making, high-pressure die casting, multi-axis machining, robotic polishing, physical vapor deposition (PVD), and structural assembly under a single roof, we ensure unparalleled consistency for critical hardware segments worldwide.
"To create value for customers, achieve win-win partnerships, and empower employees to realize their potential."
Providing global partners with complete end-to-end processing systems that insulate operations from typical tier-2 bottlenecks.
Our in-house mold workshop speeds up standard product development pipelines. CNC prototyping, EDM machining, and comprehensive tool building are executed in-house, compressing standard tool creation timelines down to 28-35 days.
Utilizing high-pressure cold and hot chamber die-casting machines. Accompanied by multi-axis CNC machines maintaining dimensional tolerances to within 0.02 mm, satisfying strict geometric design limitations.
From fine mechanical polishing to advanced finishing treatments, including electroplating, organic powder coatings, and clean room PVD (Physical Vapor Deposition) processes, securing superior corrosion resistance.
Our engineering division leverages computerized simulation and mold-flow analysis tools to determine optimized gate placements, reducing porosity risks in cast parts. The production facility integrates automated casting cells to ensure consistent cycle speeds and thermal management across long production schedules.
Post-cast components require high-precision machining to achieve strict installation tolerances. Our finishing lines are equipped with multi-axis CNC machines and automated polishers that maintain surface consistency on complex aesthetic surfaces prior to plating.
Exploring mechanical limits, alloy formulations, and finishing processes suited for challenging environments.
| Alloy Class | Common Designation | Tensile Strength | Thermal Conductivity | Primary Industrial Use Case |
|---|---|---|---|---|
| Zinc Alloys (Zamak) | Zamak 3 / Zamak 5 | 280 - 330 MPa | 110 W/m-K | High-end bathroom fixtures, decorative hardware, complex housings |
| Aluminum Alloys | ADC12 / A380 | 310 - 320 MPa | 96 - 109 W/m-K | Structural brackets, light fixtures, heat sinks, components |
| Stainless Steel | SUS 304 / SUS 316 | 505 - 515 MPa | 16.2 W/m-K | High-corrosion marine hardware, cleanroom brackets, drains |
We leverage industrial electroplating lines alongside Physical Vapor Deposition (PVD) chambers to apply protective metallic barriers. PVD vaporizes target metals within high-vacuum fields, depositing molecular thin-films that increase surface hardness and scratch resistance while offering diverse styling options like Brushed Gold, Gunmetal Gray, and Matte Black.
We continue updating our processes with next-generation manufacturing tech:
How we address strict design specifications, material tracing requirements, and supply-chain logistics for global brands.
Our quality management systems are certified to meet international automotive and industrial manufacturing metrics, securing batch-to-batch repeatability and transparent material tracking.
Located near Ningbo Port, we utilize nearby logistic channels, securing reliable container shipping options to reduce transit times and mitigate supply disruptions.
We work closely with global design groups to optimize designs for manufacturability (DFM), reducing material weights while maintaining core mechanical strength requirements.
We back our manufacturing assertions with audits conducted by third-party classification bureaus. Our facilities hold valid ISO 9001 and IATF 16949 certifications, confirming that our production lines, raw materials, testing practices, and packaging operations comply with international quality management standards.
Addressing common queries from procurement teams and metallurgy engineers during casting development cycles.
We utilize mold-flow software to simulate alloy injection behaviors, identifying temperature and pressure drop-offs beforehand. We also use high-tonnage multi-slide casting systems to achieve rapid, uniform mold filling, preventing premature freezing in profiles down to 0.8 mm thick.
Surface plating quality is directly linked to the casting's structural integrity. Surface porosity or slag inclusions can trap processing chemistry, causing plating blisters later. We use degassed alloys, precise thermal mold controls, and automated polishing to provide a smooth, dense surface structure ready for plating.
Yes. While we primarily cast zinc and aluminum, our precision investment casting lines also produce brass and stainless steel elements, ensuring compliance with drinking water regulations like NSF/ANSI 61.
Initial design optimization and mold building require 28-35 days, including trial samples. Upon sample sign-off, bulk production runs typically range between 30 and 45 days, depending on geometry complexity and chosen surface finish options.
We manufacture custom precision hardware for leading international kitchen, bath, and design brands.
Send your project blueprints, material specifications, and expected ordering volumes to our application engineering team. We will respond with a preliminary DFM report and price quotation within 24 hours.
Get Project Quote TodayExplore our additional OEM options spanning shower glass clamps, structural connectors, and cabinet hardware lines.
Huazhu