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From product concept to volume production, Sanpin provides integrated services spanning mold design, precision mold manufacturing, and injection molding — all managed under one roof. With 24,000 m² of production capacity, 200+ sets of imported CNC and EDM equipment, and a dedicated engineering team, we eliminate the coordination gaps that occur when working with multiple suppliers. Whether your project requires single-color molding, 2K/3K multi-shot molding, insert molding, or overmolding, Sanpin delivers from prototype to mass production within a single qualitycontrolled workflow.
Precision injection molds engineered for complex automotive, medical, and consumer applications. Our facility is equipped with imported CNC machining centers and EDM systems, capable of producing molds up to 2,500 mm in length and 25 tons in weight.
From single-shot molding to insert molding and overmolding, we deliver consistent, high-quality plastic parts under ISO 9001 and IATF 16949 certified quality systems — from pilot runs to full-scale production.
Our specialty. Using advanced multi-shot injection technology, we produce two-color and three-color molded components in a single cycle — ideal for automotive lighting, interior trim, and functional multi-material assemblies.
Headquartered in Bao'an District, Shenzhen, Sanpin Mould has grown over 18 years into a trusted manufacturing partner for clients across Europe,North America, Asia, and beyond. With a 24,000 m² facility and a team of 280+ professionals, we deliver fully integrated services — from mold design and precision tooling to 2K/3K multi-color injection molding, insert molding, and overmolding. Our products serve the automotive, medical, home appliance, and electronics industries worldwide.













With 18 years of mold engineering experience and a fully integrated manufacturing workflow, Sanpin solves the challenges that procurement teams and product engineers face most often — fragmented supply chains, inconsistent quality, and unclear total costs.
Submit 3D CAD models and discuss technical specifications with engineering teams.
Conduct Design for Manufacturability (DFM) verification and provide cost estimation
Execute advanced manufacturing methods including CNC precision machining, injection molding, 3d printing, etc.
Implement dimensional accuracy checks and arrange certified logistics for high-grade components.
Send us your 2D drawings or 3D CAD files by email, and our project engineers will review your requirements and respond with a detailed quotation within 24 hours. Every quote includes material recommendations, mold design considerations, and a clear production timeline.
Get Your Free QuoteSanpin delivers precision mold making and injection molding solutions tailored to the specific quality standards, material requirements,and production volumes of each industry we serve.
Sanpin has delivered precision molds and injection molded components for clients across the automotive, medical, home appliance, and electronics industries worldwide. Each project reflects our commitment to engineering accuracy and production reliability.
More Parts Manufacturing Cases →Sanpin engineered and manufactured a precision injection mold for an automotive LED lamp housing, meeting strict optical clarity and dimensional requirements. The project involved complex cavity geometry, advanced cooling channel design, and multi-stage mold flow optimization to achieve consistent wall thickness and surface finish across production runs.
Sanpin's engineering team has extensive experience processing a wide range of thermoplastic resins for injection molding applications.Commonly used materials include ABS, PC, PA66 (Nylon), POM, PP, PE, PMMA, PBT, and high-performance polymers such as PPS,PEEK, and LCP. For mold manufacturing, we use quality tool steels selected based on production volume, part complexity, and surface finish requirements.
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