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Contact Info

  • Building 29, Mashantou Community, Third Industrial Zone, Matian Street, Guangming District, Shenzhen, Guangdong, China

  • annatang@szrba.com

  • Mod-friday, 09am -05pm

  • +86-13502820151
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Custom Precision Molds & Injection Molding.
Deliver high-precision molds and high-quality plastic products.
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Precision Mold Manufacturing

Custom developed molds for complex structure, multi-cavity, core pulling and overmolding.

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Product

包胶5

Precision 2K Injection Overmolding Tooling

Precise interlocking positioning for molecular-level fitting
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抽芯4

Core Pulling Mold

Designed for complex undercut plastic structural parts.
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1

High Transparent IVD Consumables Mold

Optical mirror cavity, surface finish up to Ra 0.008μm.
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半透明

Semi-Transparent IVD Consumables Mold

High-precision cavity for PP translucent medical supplies.
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培养皿

DisposableMulti-Well Culture Dishes Mold

Multi-cavity integrated design, high-precision positioning.
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FAQ

Cooperation & Custom FAQ

未标题-6 (1)
Yes. Upon receiving your 3D drawings, our engineers will conduct a professional DFM manufacturability assessment, reviewing key structures such as wall thickness, ribs, undercuts, draft angles, and gate positions in advance. We will proactively identify potential risks like mold jamming, shrinkage, deformation, and flash during injection molding, and provide optimization solutions. If the original structural design is unreasonable, we offer free structural optimization suggestions without altering the product’s appearance or functionality. We support multiple rounds of iterative revisions to adapt the design for mold opening and mass production, avoiding costly mold rework from the outset.
We specialize in precision plastic injection molds. The standard dimensional tolerance is stably controlled at ±0.05mm, with precision mating surfaces reaching ±0.02~0.03mm. We select certified mold steel grades based on product appearance, application, and production volume, paired with professional heat treatment to enhance hardness and wear resistance. Our molds deliver consistent quality, supporting hundreds of thousands of shots for long-term mass production. They resist wear and flash, ensuring excellent dimensional consistency across batches.
During the initial mold design stage, we simulate injection flow, cooling, and shrinkage rates in advance. We strategically plan the runner and gate layout, optimize vent slots, cooling systems, and ejection structures. Through shrinkage compensation, anti-warping structural design, and improved mold clamping precision, we proactively mitigate common issues such as sink marks, warpage, flash, and incomplete filling. This significantly reduces defect rates during mass production.
Yes. We offer multiple free mold trials until samples meet all dimensional, appearance, and assembly requirements. Each trial includes sample delivery, key dimension inspection data, root cause analysis, and corrective action plans. All documentation is archived for your acceptance and serves as a complete reference for subsequent mass production.
We handle injection molding for general plastics (ABS, PP, PE, PC, nylon, glass fiber-reinforced materials, etc.) and various engineering plastics. We also support high-temperature-resistant, high-toughness special materials, as well as medical-grade and food-grade compliant raw materials upon request. We tailor injection processes to each material’s properties, ensuring product performance, hardness, and toughness meet specifications.
Before mass production, we finalize and lock all process parameters (temperature, pressure, speed, packing, cooling, etc.) to avoid unauthorized changes. We use consistent raw material batches, uniform color masterbatch ratios, and stable production environments. In-process sampling and inspection of key dimensions, appearance, and color ensure high consistency across production runs.
Yes. Our standardized full-process QC includes first article confirmation, in-process patrols, and last article comparison, with strict controls at critical stations (sampling or 100% inspection as required). We rigorously verify appearance, dimensions, assembly, and performance to prevent non-conforming products from shipping. QC reports and dimensional inspection records are available upon request, ensuring full traceability.
We flexibly support R&D prototyping, small-batch pilot runs, and mass orders of hundreds of thousands of units, with stable capacity for both small and large orders. A standardized delivery process (drawing confirmation → DFM analysis → mold opening → mass production) ensures on-time delivery. We proactively plan capacity, reserve machines, and stock materials to avoid delays. For post-delivery mold modifications (e.g., resizing, structural tweaks), we offer fast response, transparent quoting, and no hidden fees. All modifications are validated with re-trials to ensure stable project delivery.
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