Case Studies

If you are looking for a reliable custom parts manufacturer from China, we are here for you!
Our professional sales executives and project managers at Marigold Rapid work with lots of mechanical engineers and product designers from all over the world, across different industries, to turn innovative ideas into reality in shortest possible time.

Have a look at some example projects we’ve worked on and see how they were made. Projects using a wide range of services including CNC machining, sheet metal fabrication, injection molding, compression molding, pressure die casting and various of post finishing techniques.

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Precision injection-molded from durable ABS/PA66, this painted door handle combines ergonomic design with impact resistance for residential, automotive, or commercial applications. Engineered with smooth contoured grips and precise mounting interfaces (±0.1mm tolerance), it ensures comfortable operation and secure installation. The multi-layered paint finish—available in matte/gloss textures and custom colors—offers superior scratch/UV resistance, tested to 500+ hours of salt-spray exposure. Optional anti-static or antimicrobial coatings enhance functionality for healthcare/industrial environments. Lightweight yet robust, its modular design supports quick assembly with standard door frames, while ISO-compliant tooling guarantees consistent quality from prototyping to mass production. Ideal for applications demanding aesthetic appeal and reliable performance.


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Precision-injection molded from FDA-compliant, medical-grade polymers (ABS/nylon), this black modular chassis delivers sterile, corrosion-resistant structural support for biotech lab instruments. Engineered with customizable mounting interfaces and modular frames, it adapts to diagnostic devices, analyzers, or automation systems while meeting ISO 13485 and USP Class VI standards. Tight tolerances (<±0.05mm) ensure precise component alignment, with smooth, non-porous surfaces enabling autoclave/ETO sterilization and easy decontamination. The rugged black finish resists chemical exposure and UV degradation, ideal for cell culture, genomics, or QC workflows. Lightweight yet impact-resistant, its scalable design supports rapid prototyping to GMP-compliant mass production via ISO-certified tooling. Contact for tailored medical-grade molding solutions!


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Precision-injection molded from FDA-compliant, medical-grade polymers (ABS/nylon), this black modular chassis delivers sterile, corrosion-resistant structural support for biotech lab instruments. Engineered with customizable mounting interfaces and modular frames, it adapts to diagnostic devices, analyzers, or automation systems while meeting ISO 13485 and USP Class VI standards. Tight tolerances (<±0.05mm) ensure precise component alignment, with smooth, non-porous surfaces enabling autoclave/ETO sterilization and easy decontamination. The rugged black finish resists chemical exposure and UV degradation, ideal for cell culture, genomics, or QC workflows. Lightweight yet impact-resistant, its scalable design supports rapid prototyping to GMP-compliant mass production via ISO-certified tooling. Contact for tailored medical-grade molding solutions!


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Precision-injection molded from FDA-compliant, medical-grade transparent polymers (PMMA/COP/PC), this labware ensures sterile, contamination-free sample cultivation for cell biology, microbiology, or tissue engineering. Engineered with optical clarity and smooth, non-porous surfaces, it enables real-time microscopic observation while meeting USP Class VI biocompatibility and ISO 13485 standards. Tight tolerances (<±0.05mm) guarantee uniform well dimensions for reproducible experiments, with designs including multi-well plates, petri dishes, or microfluidic chambers. Autoclave/ETO sterilization compatibility and gamma-ray stability suit critical aseptic workflows, while customizable features (surface coatings, lid configurations) adapt to specialized protocols. Lightweight, shatter-resistant, and produced via ISO-compliant tooling, it delivers reliable performance from research labs to GMP manufacturing. Ideal for applications demanding precision, transparency, and regulatory compliance in sample cultivation. Contact for tailored medical-grade molding solutions!


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Precision-injection molded from FDA-compliant, medical-grade transparent polymers (PMMA/COP/PC), this labware ensures sterile, contamination-free sample cultivation for cell biology, microbiology, or tissue engineering. Engineered with optical clarity and smooth, non-porous surfaces, it enables real-time microscopic observation while meeting USP Class VI biocompatibility and ISO 13485 standards. Tight tolerances (<±0.05mm) guarantee uniform well dimensions for reproducible experiments, with designs including multi-well plates, petri dishes, or microfluidic chambers. Autoclave/ETO sterilization compatibility and gamma-ray stability suit critical aseptic workflows, while customizable features (surface coatings, lid configurations) adapt to specialized protocols. Lightweight, shatter-resistant, and produced via ISO-compliant tooling, it delivers reliable performance from research labs to GMP manufacturing. Ideal for applications demanding precision, transparency, and regulatory compliance in sample cultivation. Contact for tailored medical-grade molding solutions!


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Precision-injection molded from high-impact engineering plastics (ABS/nylon/POM), this vibrant orange robotic maintenance tool offers durable, lightweight performance for assembly, calibration, and repair of robotic systems. Engineered with ergonomic grips and precision-machined tips/sockets, it handles delicate components (gears, bearings, connectors) with tight tolerances (<±0.08mm), reducing risk of damage during installation. The high-visibility orange finish enhances workplace safety by improving tool location in cluttered environments, while chemical-resistant properties withstand lubricants, solvents, and harsh industrial conditions. Customizable designs accommodate unique robotic joint geometries or torque requirements, with optional anti-slip coatings optimizing handling precision. ISO-compliant manufacturing ensures consistent quality from prototyping to mass production, ideal for automotive, logistics, or industrial robotics demanding reliable, specialized maintenance tools. Lightweight yet rugged, it streamlines assembly workflows and extends component lifespan. Contact for tailored injection molding solutions!


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